Airtac SE series: double-acting cylinder - SE125AX782FA

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Description

Specifications: SE125AX782FA — Airtac SE double-acting, single-rod pneumatic cylinder; 125 mm bore, 782 mm stroke, sus420j2 stainless steel piston rod, without magnet, TPU seal option and PT1/2 ports. Mounting configuration: front flange.

Product Catalog

Download Airtac Product Catalog (PDF)

For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

Model Code Explained

Code Meaning
SE SE series, double-acting single-rod cylinder
125 125 mm bore
A SUS420J2 stainless steel piston rod
X Separator before stroke
782 782 mm stroke
No magnet suffix Without built-in magnet
FA Front flange
No seal-material suffix TPU seal option; internal O-ring materials follow the component table
No thread suffix PT1/2 port thread

Technical Specifications

Parameter Value
Model SE125AX782FA
Action Double acting, single rod
Bore 125 mm
Stroke 782 mm; Non-standard configurable stroke; confirm order and delivery conditions
Piston rod SUS420J2 stainless steel
Magnetic piston Without built-in magnet; magnetic switching requires a magnetic cylinder
Mounting selection Front flange
Seal option TPU; this does not mean every internal O-ring is TPU
Port thread PT1/2
Working medium Clean compressed air filtered through a 40 µm or finer filter
Operating pressure 0.15–1.0 MPa (1.5–10 bar; approximately 22–145 psi)
Proof pressure 1.5 MPa (15 bar); not the continuous operating pressure
Operating temperature −20 to 70 °C; avoid freezing condensate
Piston speed 30–500 mm/s; select controls for the actual load and piping
Stroke tolerance +1.5 / 0 mm
Cushioning Adjustable pneumatic cushioning at both ends
Series cushion-stroke reference 40 mm nominal catalog value; actual deceleration depends on stroke, load and adjustment
Rod diameter and end thread 32 mm; M27 × 2
Sensor selection CMSE and DMSE magnetic sensors are not applicable without a magnetic piston
Calculated weight reference 19119.2 g (19.1192 kg); bare-cylinder reference, excluding mounting and rod-end accessories

Weight basis: 5747 g non-stroke mass + 782 mm × 17.1 g/mm. Catalog reference estimate, not measured or packed shipping weight. Rod-material mass correction is unlisted. Mount masses are unlisted and excluded. Actual supplied mass prevails.

Features and Operation

  • The catalog lists ISO 15552 and VDMA 24562 as the cylinder design standards; this is not a separate certification claim.
  • Compressed air alternately drives the piston in both directions. The profiled double-acting piston seal has a compact, oil-retaining design.
  • Square aluminum-alloy barrel without external tie rods, with adjustable end cushioning. Use external guidance where the load would bend or twist the rod.
  • Select mounting parts to match the motion and load path. A catalog-compatible accessory is not automatically included in the delivery.

External and Mounting Dimensions

Basic SE125 geometry is identical with or without a magnet. Dimensions are in mm except threads. Derived overall lengths include the rear locating boss but exclude mounts, rod-end joints, air fittings, sensors and packaging.

Parameter Value
A + stroke, retracted 1061 mm = 279 + 782; rod-thread end to rear-cover face, excluding rear locating boss
AC + stroke, body face span 942 mm = 160 + 782
Bare-cylinder overall length, retracted 1065 mm = 279 + 782 + 4
Bare-cylinder overall length, fully extended 1847 mm = 279 + 2 × 782 + 4
Body cross-section, width × height 134 × 134 mm (□B)
Mounting holes 8 × M12 (K), 22 mm deep (KA); 110 × 110 mm centers (□KB)
Rod diameter / rod-end thread D = 32 mm; E = M27 × 2; EA = 54 mm
Locating bosses ØM = 60 mm; ØN = 60 mm; rear projection NA = 4 mm
Rod-end local dimensions AB = 119; DA = 74; F = 41; FA = 13.5; H = 27 mm
Cover and port local dimensions AD = 46; AE = 46; MA = 45; PA = 23; PB = 11 mm; P = PT1/2

Mount symbols refer to their own drawings; unrelated dimensions cannot be added into a verified assembly length × width × height.

Parameter Value
Selected accessory FA: Front flange; part F-SI125FA
Material Cast steel
A+stroke 1061 mm = 279 + 782
C+stroke 942 mm = 160 + 782
Dimensions (mm) BA = 60.5; BB = 20; BC = 139; BD = 90
Dimensions (mm) BE = 218; BF = 180; BP = 16.5; T = 110

Shared FA/FB flange dimensions, with front/rear placement shown separately; four BP holes.

For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

Assembly and Accessory Selection

The current mounting selection is Front flange. Confirm the exact supplied parts and quantities; compatible-code listing is not a packing list.

Optional part Application and reference
F-SI125LB Foot mount (LB); cast steel
F-SI125FA Front flange (FA); cast steel
F-SI125FA Rear flange (FB); cast steel
F-SE125CA Rear single clevis (CA); cast steel
F-SE125CB Rear double clevis (CB); cast steel
F-SI125CR Rear pivot support used with CB (CR); cast steel
F-SE125TC Trunnion mounting bracket (TC)
F-SI125FTC Front trunnion mount (FTC); cast steel
F-SI125TCM1 Trunnion support type 1 (TCM1); cast steel
F-SI125TCM2 Trunnion support type 2 (TCM2); cast steel
F-M27X200I I-type rod-end joint; 1201 g catalog reference. Drawing dimensions: NC = 30; ND = 110; NE = 139; NF = 51; NG = 45; NH = M27×2; NM = 30.
F-M27X200Y Y-type rod-end joint; 1473 g catalog reference. Drawing dimensions: NA = 54; NC = 30; ND = 110; NP = 55; NQ = 139; NM = 30; NH = M27×2; PA = 64.2; PB = 54.8.
F-M27X200U Spherical rod-end joint; 1210 g catalog reference. Drawing dimensions: PA = 25; PB = 70; PC = 30; PD = 51; PE = 110; PF = 145; PG = M27×2; PH = 15°; PI = 50; PJ = 41; PK = 37.

The three I/Y/U rod-end alternatives use M27 × 2; match the exact pitch. Drawing dimensions are in mm except threads and angles. CR requires CB; FTC and TC pair with TCM1 or TCM2. Joint drawings define added assembly space; add their masses only when supplied.

Floating-joint candidate requiring confirmation: F-M27X200F (M27 × 2). The dedicated floating-joint table in the 2022 catalog, printed page 401, marks SE125 compatibility, while the accessory overview on printed page 20 shows a dash. Confirm compatibility with AirTAC before selection; this is not an unconditionally confirmed option or standard supply.

Floating-joint reference Confirm compatibility before ordering
Conditional candidate F-M27X200F
Individual joint weight reference 1470 g; not included in the bare-cylinder weight
Joint drawing dimensions MA = 136.5; MB = 40; MC = 14.5; MD = 52.5; ME = 59.5; MF = 40; MG = 13.5; MH = 27; MI/MJ = M27 × 2; MK = 5°; mm except thread and angle

CMSE/DMSE require the S piston. Hardware, sensors, joints and service parts are separate unless ordered. Match SE125 seal kits, wear rings, guide bushings and covers to the actual seal and production revision; replacement magnets apply only to magnetic models. Confirm service-part codes; bore and drawing callouts alone are insufficient.

Force and System Selection

Parameter Value
Theoretical extension force 6136 N at 0.5 MPa; effective piston area 12272 mm²
Theoretical retraction force 5734 N at 0.5 MPa; effective annular area 11468 mm²
Force calculation Force (N) = effective piston area (mm²) × pressure (MPa), before friction and dynamic losses; not a safe payload rating
Catalog load-ratio guidance Up to 0.7 for static/low-speed duty, 0.5 at 50–500 mm/s and 0.3 above 500 mm/s; the SE125 operating-speed specification remains 30–500 mm/s

No SE125 speed/flow/tube selection row is provided in the reviewed catalog selection tables. Select valves, tubing and the complete flow path for the actual load, pressure, pipe length, fittings, cushioning and exhaust backpressure; do not apply the SE100 reference speeds or tube sizes as a verified SE125 selection. Long strokes need support and stability checks; heavy or fast loads may need a deceleration circuit or external absorber. The 0.1 MPa force reference is below the SE operating minimum.

Internal Components

Catalog item Material / scope
1 — Rod-end nut Carbon steel or stainless steel, according to the supplied part specification
2 — Piston rod SUS420J2 stainless steel
3 — Front-cover O-ring TPU
4 — Front cover Aluminum alloy
5 — Bushing Wear-resistant material
6 — Cushion O-ring TPU
7 — Cylinder barrel Aluminum alloy
8 — O-ring NBR
9 — Piston Aluminum alloy
10 — Piston O-ring NBR
11 — Wear ring Wear-resistant material
13 — Hexagon socket screw Carbon steel
14 — Cushion seal TPU
15 — Rear cover Aluminum alloy
16 — Pillar nut Carbon steel or stainless steel, according to the supplied part specification

Catalog item 12 is the magnetic-version magnet and is not included in this non-magnetic configuration.

Series Ordering Options

The following are series options, not additional features of this model. SE is single rod; SED is double rod; SEJ is double rod with adjustable stroke. Their dimensions and weight formulas differ. Rod material: omitted = medium carbon steel, A = SUS420J2, B = SUS304, C = SUS316. Seal option: omitted = TPU, H = fluororubber, N = NBR. S selects the magnetic piston; omitted selects no magnet. Port thread: omitted = PT, G = G thread. A different seal code alone does not establish a higher operating-temperature rating.

SE125 catalog standard strokes are 25, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, 1000 mm. The catalog lists a 1500 mm maximum and 1800 mm allowable stroke. Confirm non-standard orders and availability; check long-stroke rod support, load direction and stability.

Installation and Maintenance

  • Installation and servicing should be performed by trained personnel. Isolate power and air and release residual pressure before servicing; prevent sudden rod movement during restart.
  • Protect against dust, splash, corrosive media and freezing condensate; use suitable components for special environments. Keep magnetic versions away from strong external magnetic fields.
  • Provide guarding and suitable measures against unintended movement or dropped loads after pressure loss. The cylinder alone is not a safety holding device.
  • Factory prelubrication generally permits operation without added oil. If lubrication is used, use additive-free ISO VG32 turbine oil and continue lubrication once started; do not use engine or spindle oil.
  • Use clean, properly treated compressed air and flush piping before connection. Keep thread sealant or tape clear of the first one to two threads to prevent contamination.
  • The catalog gives 12–15 N·m as a PT1/2 piping-thread tightening reference. Apply it only to PT fittings with the specified mating seal; do not apply it automatically to G1/2 joints.
  • Adjust air cushioning for the actual load and speed; avoid side loading and protect the rod surface. Cap ports and protect against corrosion during extended storage.
  • Install speed controls at both cylinder ports. For commissioning, start with the flow controls closed and open them gradually from low speed; exhaust throttling is commonly used for stable speed.
  • Adjust the cushion needle for the load and speed so the piston does not strike the end cover or rebound; do not force the cushion adjustment screw.
  • Keep the rod axis aligned with the load motion. Guide external loads separately to avoid bending, side load and torque on the rod; support long-stroke installations against sag and vibration.
  • Use a pivoting cylinder mount for swinging linkages instead of forcing a foot-mounted cylinder to follow an arc. Select front/rear flange orientation for the predominant load direction.
  • Inspect seals, mount fixings, air leaks and rod condition periodically. Use service parts matched to the exact cylinder, seal material and revision; internal drawing numbers are not independent order codes.

Connection and Tube-Side Options

Selection Complete codes; tube sizes as labelled
PC straight 6 mm OD: PC604,PC604D; 8 mm OD: PC804,PC804D; 10 mm OD: PC1004,PC1004D; 12 mm OD: PC1204,PC1204D
POC round straight 10 mm OD: POC1004,POC1004D; 12 mm OD: POC1204,POC1204D
PL elbow 6 mm OD: PL604,PL604D; 8 mm OD: PL804,PL804D; 10 mm OD: PL1004,PL1004D; 12 mm OD: PL1204,PL1204D
PLL extended elbow 10 mm OD: PLL1004,PLL1004D; 12 mm OD: PLL1204,PLL1204D
PEB branch tee 8 mm OD: PEB804,PEB804D; 10 mm OD: PEB1004,PEB1004D; 12 mm OD: PEB1204,PEB1204D
PED run tee 8 mm OD: PED804,PED804D; 10 mm OD: PED1004,PED1004D; 12 mm OD: PED1204,PED1204D
PYB Y fitting 8 mm OD: PYB804,PYB804D; 10 mm OD: PYB1004,PYB1004D; 12 mm OD: PYB1204,PYB1204D
PH banjo elbow 8 mm OD: PH804,PH804D; 10 mm OD: PH1004,PH1004D; 12 mm OD: PH1204,PH1204D
PHF female-branch banjo 8 mm OD: PHF804,PHF804D; 10 mm OD: PHF1004,PHF1004D; 12 mm OD: PHF1204,PHF1204D
PHW twin banjo 8 mm OD: PHW804,PHW804D; 10 mm OD: PHW1004,PHW1004D; 12 mm OD: PHW1204,PHW1204D
PZB cross fitting 8 mm OD: PZB804,PZB804D; 10 mm OD: PZB1004,PZB1004D; 12 mm OD: PZB1204,PZB1204D
PC-S 6 mm OD: PC604-S,PC604D-S; 8 mm OD: PC804-S,PC804D-S; 10 mm OD: PC1004-S,PC1004D-S; 12 mm OD: PC1204-S,PC1204D-S
POC-S 10 mm OD: POC1004-S,POC1004D-S; 12 mm OD: POC1204-S,POC1204D-S
PL-S 6 mm OD: PL604-S,PL604D-S; 8 mm OD: PL804-S,PL804D-S; 10 mm OD: PL1004-S,PL1004D-S; 12 mm OD: PL1204-S,PL1204D-S
PLL-S 10 mm OD: PLL1004-S,PLL1004D-S; 12 mm OD: PLL1204-S,PLL1204D-S
PEB-S 8 mm OD: PEB804-S,PEB804D-S; 10 mm OD: PEB1004-S,PEB1004D-S; 12 mm OD: PEB1204-S,PEB1204D-S
PED-S 8 mm OD: PED804-S,PED804D-S; 10 mm OD: PED1004-S,PED1004D-S; 12 mm OD: PED1204-S,PED1204D-S
PYB-S 8 mm OD: PYB804-S,PYB804D-S; 10 mm OD: PYB1004-S,PYB1004D-S; 12 mm OD: PYB1204-S,PYB1204D-S
PH-S 8 mm OD: PH804-S,PH804D-S; 10 mm OD: PH1004-S,PH1004D-S; 12 mm OD: PH1204-S,PH1204D-S
PHF-S 8 mm OD: PHF804-S,PHF804D-S; 10 mm OD: PHF1004-S,PHF1004D-S; 12 mm OD: PHF1204-S,PHF1204D-S
PHW-S 8 mm OD: PHW804-S,PHW804D-S; 10 mm OD: PHW1004-S,PHW1004D-S; 12 mm OD: PHW1204-S,PHW1204D-S
PZB-S 8 mm OD: PZB804-S,PZB804D-S; 10 mm OD: PZB1004-S,PZB1004D-S; 12 mm OD: PZB1204-S,PZB1204D-S
BPC metal straight 10 mm OD: BPC1004; 12 mm OD: BPC1204
BPOC metal round straight 12 mm OD: BPOC1204
BKC compression fitting 10 × 6.5 mm OD × ID: BKC1065-04; 10 × 7.5 or 8 mm OD × ID: BKC1075-04; 12 × 8 mm OD × ID: BKC1208-04; 12 × 9 or 10 mm OD × ID: BKC1209-04
BKC-S 10 × 6.5 mm OD × ID: BKC1065-04-S; 10 × 7.5 or 8 mm OD × ID: BKC1075-04-S; 12 × 8 mm OD × ID: BKC1208-04-S; 12 × 9 or 10 mm OD × ID: BKC1209-04-S
BB male–male adapter male PT1/4: BB0204; male PT3/8: BB0304; male PT1/2: BB0404
BD male–female adapter female PT1/8: BD0104; female PT1/4: BD0204; female PT3/8: BD0304
BZ auxiliary plug — unused auxiliary port only BZ04
BB-S male PT1/4: BB0204-S; male PT3/8: BB0304-S; male PT1/2: BB0404-S
BD-S female PT1/8: BD0104-S; female PT1/4: BD0204-S; female PT3/8: BD0304-S
BZ-S — unused auxiliary port only BZ04-S
BSL exhaust silencer — valve exhaust only BSL04
BSLM miniature exhaust silencer — valve exhaust only BSLM04
BESL throttling exhaust silencer — valve exhaust only BESL04
BSL-S — valve exhaust only BSL04-S
BSLM-S — valve exhaust only BSLM04-S
BESL-S — valve exhaust only BESL04-S
PAL plastic exhaust silencer — valve exhaust only PAL04,PAL04D
PSL elbow flow control 8 mm OD: PSL804A,PSL804AD,PSL804B,PSL804BD; 10 mm OD: PSL1004A,PSL1004AD,PSL1004B,PSL1004BD; 12 mm OD: PSL1204A,PSL1204AD,PSL1204B,PSL1204BD
PSS universal flow control 12 mm OD: PSS1204A,PSS1204AD,PSS1204B,PSS1204BD
PTL push-lock flow control 8 mm OD: PTL804A,PTL804AD,PTL804B,PTL804BD; 10 mm OD: PTL1004A,PTL1004AD,PTL1004B,PTL1004BD; 12 mm OD: PTL1204A,PTL1204AD,PTL1204B,PTL1204BD
PSL-S 8 mm OD: PSL804A-S,PSL804AD-S,PSL804B-S,PSL804BD-S; 10 mm OD: PSL1004A-S,PSL1004AD-S,PSL1004B-S,PSL1004BD-S; 12 mm OD: PSL1204A-S,PSL1204AD-S,PSL1204B-S,PSL1204BD-S
PSS-S 12 mm OD: PSS1204A-S,PSS1204AD-S,PSS1204B-S,PSS1204BD-S
PSA inline flow control 6 mm OD: PSA6,PSA6D; 8 mm OD: PSA8,PSA8D; 10 mm OD: PSA10,PSA10D; 12 mm OD: PSA12,PSA12D
PSA-S 6 mm OD: PSA6-S,PSA6D-S; 8 mm OD: PSA8-S,PSA8D-S; 10 mm OD: PSA10-S,PSA10D-S; 12 mm OD: PSA12-S,PSA12D-S
GPSA inline flow control 6 mm OD: GPSA6,GPSA6D; 8 mm OD: GPSA8,GPSA8D; 10 mm OD: GPSA10,GPSA10D; 12 mm OD: GPSA12,GPSA12D
PPA plug-in exhaust silencer — valve exhaust only 6 mm OD: PPA6; 8 mm OD: PPA8; 10 mm OD: PPA10; 12 mm OD: PPA12
US98A PU tubing 6 × 4 mm OD × ID: US98A060040100MBU; 8 × 5 mm OD × ID: US98A080050100MBU; 10 × 6.5 mm OD × ID: US98A100065100MBU; 12 × 8 mm OD × ID: US98A120080100MBU
UE95A PU tubing 6 × 4 mm OD × ID: UE95A060040100MBU; 8 × 5 mm OD × ID: UE95A080050100MBU; 10 × 6.5 mm OD × ID: UE95A100065100MBU; 12 × 8 mm OD × ID: UE95A120080100MBU
ASC inline threaded flow control two female PT1/2: ASC30015
GAFR upstream filter/regulator female PT1/2: GAFR30015S,GAFR40015S

All listed parts are separately selected alternatives, not an included kit or stock promise. Use PT1/2 cylinder fittings and the specified seal; PT, G and NPT are not interchangeable. Check insertion depth, tool/rotation clearance, flow and tube loading. G joints require the correct face seal and mating surface. The M27 × 2 rod thread is not an air port.

Use suitable soft nylon or PU tube. Match OD, and compression fittings also require the stated ID. D is black and blank is gray where offered; -M is miniature. -S specifies only the stainless 304 parts identified in the component material table, not the whole cylinder/circuit. PHF has an additional female PT1/2 branch: connect or seal it as the designed circuit permits; it is not another tube socket. Tees, Y, cross and distribution fittings must not bridge the two cylinder chambers or unrelated control circuits.

SE125 operates at 0.15–1 MPa and −20–70 °C. Ordinary push-in and listed flow controls are 0–1 MPa, −20–70 °C. BPC/BPOC is 0–0.9 MPa, 0–150 °C: the SE path is therefore no wider than 0.15–0.9 MPa and 0–70 °C. BKC/BB/BD/BZ is 0–1 MPa, 0–150 °C, limiting the SE path to 0.15–1 MPa and 0–70 °C. Every lower selected valve, tube and sensor limit still applies. Component vacuum ratings do not approve a vacuum SE assembly.

BKC1065-04 accepts 10 × 6.5 mm tube; BKC1075-04 accepts 10 × 7.5 or 10 × 8 mm; BKC1208-04 accepts 12 × 8 mm; BKC1209-04 accepts 12 × 9 or 12 × 10 mm. No 8 mm compression fitting is listed here. Hold the body hex during thread installation, not the tube-locking nut; insert tube fully and tighten the nut. BB/BD requires the exact size and gender shown for the second end. BD/GBD ordering identifies the female size first and male size second. BZ closes only a permitted unused auxiliary port, never either active cylinder working port.

At a cylinder port, A restricts cylinder/thread → tube exhaust (meter-out), with free reverse supply; B restricts tube → cylinder supply (meter-in). Use A for the usual double-acting exhaust-control circuit; choose B only for a designed meter-in circuit. Start closed and open slowly. Flow control is not safety isolation. PTL 1/2 cap adjustment is recommended at 0.32 N·m, not pipe-thread installation torque. PSA/GPSA are threadless tube-to-tube controls without an A/B suffix; match both tube ODs and the body check/throttle symbol. The G in GPSA does not specify a G-thread port.

PPA6/PPA8/PPA10/PPA12 have 6/8/10/12 mm plain stems, requiring matching metric push-in sockets on the separately selected directional-valve exhaust. PPA uses POM body/cap and PE filter, rated 0–1 MPa and −20–70 °C; 25 dB at 0.5 MPa is a catalog test, not a site-noise promise. PPA has no D or thread suffix. PPA and threaded silencers must not occupy cylinder working ports or serve as inlet filters or safety shutoffs. Match actual exhaust thread/flow and check backpressure; BESL adjustment changes backpressure.

ASC is a separate female-port inline control requiring its own fittings; follow P/A and the check/throttle symbol. Its 0.05–0.95 MPa component range limits the SE path to 0.15–0.95 MPa before other lower limits. Use 40 µm or finer filtered air.

GAFR300/400 S examples are separately connected upstream compressed-air filter/regulators: PC bowl, manual/differential-pressure drain, bracket, round clip-on gauge, 40 µm element and no reverse-flow valve. Inlet ≤1 MPa; setting 0.15–0.9 MPa; −5–70 °C, non-freezing. Check required flow, pressure drop, condensate and bowl environment; not a vacuum regulator, cylinder-mounted part or mandatory bore-specific size. Set pressure within every downstream rating.

US98A/UE95A examples are blue 100 m coils, not supplied cut lengths. Their 1 MPa rating is at 23 °C and requires temperature derating. US98A is −20–70 °C; UE95A is −40–70 °C, while the SE assembly stays within every component limit. Match OD and ID, bend radius, routing and actual flow. No listed tube OD carries a verified SE125 reference-speed association; size the complete flow path for the actual duty.

Product form

Specifications: SE125AX782FA — Airtac SE double-acting, single-rod pneumatic cylinder; 125 mm bore, 782 mm stroke, sus420j2 stainless steel piston rod,... Read more

SKU: SE125AX782FA

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    Description

    Specifications: SE125AX782FA — Airtac SE double-acting, single-rod pneumatic cylinder; 125 mm bore, 782 mm stroke, sus420j2 stainless steel piston rod, without magnet, TPU seal option and PT1/2 ports. Mounting configuration: front flange.

    Product Catalog

    Download Airtac Product Catalog (PDF)

    For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

    Model Code Explained

    Code Meaning
    SE SE series, double-acting single-rod cylinder
    125 125 mm bore
    A SUS420J2 stainless steel piston rod
    X Separator before stroke
    782 782 mm stroke
    No magnet suffix Without built-in magnet
    FA Front flange
    No seal-material suffix TPU seal option; internal O-ring materials follow the component table
    No thread suffix PT1/2 port thread

    Technical Specifications

    Parameter Value
    Model SE125AX782FA
    Action Double acting, single rod
    Bore 125 mm
    Stroke 782 mm; Non-standard configurable stroke; confirm order and delivery conditions
    Piston rod SUS420J2 stainless steel
    Magnetic piston Without built-in magnet; magnetic switching requires a magnetic cylinder
    Mounting selection Front flange
    Seal option TPU; this does not mean every internal O-ring is TPU
    Port thread PT1/2
    Working medium Clean compressed air filtered through a 40 µm or finer filter
    Operating pressure 0.15–1.0 MPa (1.5–10 bar; approximately 22–145 psi)
    Proof pressure 1.5 MPa (15 bar); not the continuous operating pressure
    Operating temperature −20 to 70 °C; avoid freezing condensate
    Piston speed 30–500 mm/s; select controls for the actual load and piping
    Stroke tolerance +1.5 / 0 mm
    Cushioning Adjustable pneumatic cushioning at both ends
    Series cushion-stroke reference 40 mm nominal catalog value; actual deceleration depends on stroke, load and adjustment
    Rod diameter and end thread 32 mm; M27 × 2
    Sensor selection CMSE and DMSE magnetic sensors are not applicable without a magnetic piston
    Calculated weight reference 19119.2 g (19.1192 kg); bare-cylinder reference, excluding mounting and rod-end accessories

    Weight basis: 5747 g non-stroke mass + 782 mm × 17.1 g/mm. Catalog reference estimate, not measured or packed shipping weight. Rod-material mass correction is unlisted. Mount masses are unlisted and excluded. Actual supplied mass prevails.

    Features and Operation

    • The catalog lists ISO 15552 and VDMA 24562 as the cylinder design standards; this is not a separate certification claim.
    • Compressed air alternately drives the piston in both directions. The profiled double-acting piston seal has a compact, oil-retaining design.
    • Square aluminum-alloy barrel without external tie rods, with adjustable end cushioning. Use external guidance where the load would bend or twist the rod.
    • Select mounting parts to match the motion and load path. A catalog-compatible accessory is not automatically included in the delivery.

    External and Mounting Dimensions

    Basic SE125 geometry is identical with or without a magnet. Dimensions are in mm except threads. Derived overall lengths include the rear locating boss but exclude mounts, rod-end joints, air fittings, sensors and packaging.

    Parameter Value
    A + stroke, retracted 1061 mm = 279 + 782; rod-thread end to rear-cover face, excluding rear locating boss
    AC + stroke, body face span 942 mm = 160 + 782
    Bare-cylinder overall length, retracted 1065 mm = 279 + 782 + 4
    Bare-cylinder overall length, fully extended 1847 mm = 279 + 2 × 782 + 4
    Body cross-section, width × height 134 × 134 mm (□B)
    Mounting holes 8 × M12 (K), 22 mm deep (KA); 110 × 110 mm centers (□KB)
    Rod diameter / rod-end thread D = 32 mm; E = M27 × 2; EA = 54 mm
    Locating bosses ØM = 60 mm; ØN = 60 mm; rear projection NA = 4 mm
    Rod-end local dimensions AB = 119; DA = 74; F = 41; FA = 13.5; H = 27 mm
    Cover and port local dimensions AD = 46; AE = 46; MA = 45; PA = 23; PB = 11 mm; P = PT1/2

    Mount symbols refer to their own drawings; unrelated dimensions cannot be added into a verified assembly length × width × height.

    Parameter Value
    Selected accessory FA: Front flange; part F-SI125FA
    Material Cast steel
    A+stroke 1061 mm = 279 + 782
    C+stroke 942 mm = 160 + 782
    Dimensions (mm) BA = 60.5; BB = 20; BC = 139; BD = 90
    Dimensions (mm) BE = 218; BF = 180; BP = 16.5; T = 110

    Shared FA/FB flange dimensions, with front/rear placement shown separately; four BP holes.

    For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

    Assembly and Accessory Selection

    The current mounting selection is Front flange. Confirm the exact supplied parts and quantities; compatible-code listing is not a packing list.

    Optional part Application and reference
    F-SI125LB Foot mount (LB); cast steel
    F-SI125FA Front flange (FA); cast steel
    F-SI125FA Rear flange (FB); cast steel
    F-SE125CA Rear single clevis (CA); cast steel
    F-SE125CB Rear double clevis (CB); cast steel
    F-SI125CR Rear pivot support used with CB (CR); cast steel
    F-SE125TC Trunnion mounting bracket (TC)
    F-SI125FTC Front trunnion mount (FTC); cast steel
    F-SI125TCM1 Trunnion support type 1 (TCM1); cast steel
    F-SI125TCM2 Trunnion support type 2 (TCM2); cast steel
    F-M27X200I I-type rod-end joint; 1201 g catalog reference. Drawing dimensions: NC = 30; ND = 110; NE = 139; NF = 51; NG = 45; NH = M27×2; NM = 30.
    F-M27X200Y Y-type rod-end joint; 1473 g catalog reference. Drawing dimensions: NA = 54; NC = 30; ND = 110; NP = 55; NQ = 139; NM = 30; NH = M27×2; PA = 64.2; PB = 54.8.
    F-M27X200U Spherical rod-end joint; 1210 g catalog reference. Drawing dimensions: PA = 25; PB = 70; PC = 30; PD = 51; PE = 110; PF = 145; PG = M27×2; PH = 15°; PI = 50; PJ = 41; PK = 37.

    The three I/Y/U rod-end alternatives use M27 × 2; match the exact pitch. Drawing dimensions are in mm except threads and angles. CR requires CB; FTC and TC pair with TCM1 or TCM2. Joint drawings define added assembly space; add their masses only when supplied.

    Floating-joint candidate requiring confirmation: F-M27X200F (M27 × 2). The dedicated floating-joint table in the 2022 catalog, printed page 401, marks SE125 compatibility, while the accessory overview on printed page 20 shows a dash. Confirm compatibility with AirTAC before selection; this is not an unconditionally confirmed option or standard supply.

    Floating-joint reference Confirm compatibility before ordering
    Conditional candidate F-M27X200F
    Individual joint weight reference 1470 g; not included in the bare-cylinder weight
    Joint drawing dimensions MA = 136.5; MB = 40; MC = 14.5; MD = 52.5; ME = 59.5; MF = 40; MG = 13.5; MH = 27; MI/MJ = M27 × 2; MK = 5°; mm except thread and angle

    CMSE/DMSE require the S piston. Hardware, sensors, joints and service parts are separate unless ordered. Match SE125 seal kits, wear rings, guide bushings and covers to the actual seal and production revision; replacement magnets apply only to magnetic models. Confirm service-part codes; bore and drawing callouts alone are insufficient.

    Force and System Selection

    Parameter Value
    Theoretical extension force 6136 N at 0.5 MPa; effective piston area 12272 mm²
    Theoretical retraction force 5734 N at 0.5 MPa; effective annular area 11468 mm²
    Force calculation Force (N) = effective piston area (mm²) × pressure (MPa), before friction and dynamic losses; not a safe payload rating
    Catalog load-ratio guidance Up to 0.7 for static/low-speed duty, 0.5 at 50–500 mm/s and 0.3 above 500 mm/s; the SE125 operating-speed specification remains 30–500 mm/s

    No SE125 speed/flow/tube selection row is provided in the reviewed catalog selection tables. Select valves, tubing and the complete flow path for the actual load, pressure, pipe length, fittings, cushioning and exhaust backpressure; do not apply the SE100 reference speeds or tube sizes as a verified SE125 selection. Long strokes need support and stability checks; heavy or fast loads may need a deceleration circuit or external absorber. The 0.1 MPa force reference is below the SE operating minimum.

    Internal Components

    Catalog item Material / scope
    1 — Rod-end nut Carbon steel or stainless steel, according to the supplied part specification
    2 — Piston rod SUS420J2 stainless steel
    3 — Front-cover O-ring TPU
    4 — Front cover Aluminum alloy
    5 — Bushing Wear-resistant material
    6 — Cushion O-ring TPU
    7 — Cylinder barrel Aluminum alloy
    8 — O-ring NBR
    9 — Piston Aluminum alloy
    10 — Piston O-ring NBR
    11 — Wear ring Wear-resistant material
    13 — Hexagon socket screw Carbon steel
    14 — Cushion seal TPU
    15 — Rear cover Aluminum alloy
    16 — Pillar nut Carbon steel or stainless steel, according to the supplied part specification

    Catalog item 12 is the magnetic-version magnet and is not included in this non-magnetic configuration.

    Series Ordering Options

    The following are series options, not additional features of this model. SE is single rod; SED is double rod; SEJ is double rod with adjustable stroke. Their dimensions and weight formulas differ. Rod material: omitted = medium carbon steel, A = SUS420J2, B = SUS304, C = SUS316. Seal option: omitted = TPU, H = fluororubber, N = NBR. S selects the magnetic piston; omitted selects no magnet. Port thread: omitted = PT, G = G thread. A different seal code alone does not establish a higher operating-temperature rating.

    SE125 catalog standard strokes are 25, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, 1000 mm. The catalog lists a 1500 mm maximum and 1800 mm allowable stroke. Confirm non-standard orders and availability; check long-stroke rod support, load direction and stability.

    Installation and Maintenance

    • Installation and servicing should be performed by trained personnel. Isolate power and air and release residual pressure before servicing; prevent sudden rod movement during restart.
    • Protect against dust, splash, corrosive media and freezing condensate; use suitable components for special environments. Keep magnetic versions away from strong external magnetic fields.
    • Provide guarding and suitable measures against unintended movement or dropped loads after pressure loss. The cylinder alone is not a safety holding device.
    • Factory prelubrication generally permits operation without added oil. If lubrication is used, use additive-free ISO VG32 turbine oil and continue lubrication once started; do not use engine or spindle oil.
    • Use clean, properly treated compressed air and flush piping before connection. Keep thread sealant or tape clear of the first one to two threads to prevent contamination.
    • The catalog gives 12–15 N·m as a PT1/2 piping-thread tightening reference. Apply it only to PT fittings with the specified mating seal; do not apply it automatically to G1/2 joints.
    • Adjust air cushioning for the actual load and speed; avoid side loading and protect the rod surface. Cap ports and protect against corrosion during extended storage.
    • Install speed controls at both cylinder ports. For commissioning, start with the flow controls closed and open them gradually from low speed; exhaust throttling is commonly used for stable speed.
    • Adjust the cushion needle for the load and speed so the piston does not strike the end cover or rebound; do not force the cushion adjustment screw.
    • Keep the rod axis aligned with the load motion. Guide external loads separately to avoid bending, side load and torque on the rod; support long-stroke installations against sag and vibration.
    • Use a pivoting cylinder mount for swinging linkages instead of forcing a foot-mounted cylinder to follow an arc. Select front/rear flange orientation for the predominant load direction.
    • Inspect seals, mount fixings, air leaks and rod condition periodically. Use service parts matched to the exact cylinder, seal material and revision; internal drawing numbers are not independent order codes.

    Connection and Tube-Side Options

    Selection Complete codes; tube sizes as labelled
    PC straight 6 mm OD: PC604,PC604D; 8 mm OD: PC804,PC804D; 10 mm OD: PC1004,PC1004D; 12 mm OD: PC1204,PC1204D
    POC round straight 10 mm OD: POC1004,POC1004D; 12 mm OD: POC1204,POC1204D
    PL elbow 6 mm OD: PL604,PL604D; 8 mm OD: PL804,PL804D; 10 mm OD: PL1004,PL1004D; 12 mm OD: PL1204,PL1204D
    PLL extended elbow 10 mm OD: PLL1004,PLL1004D; 12 mm OD: PLL1204,PLL1204D
    PEB branch tee 8 mm OD: PEB804,PEB804D; 10 mm OD: PEB1004,PEB1004D; 12 mm OD: PEB1204,PEB1204D
    PED run tee 8 mm OD: PED804,PED804D; 10 mm OD: PED1004,PED1004D; 12 mm OD: PED1204,PED1204D
    PYB Y fitting 8 mm OD: PYB804,PYB804D; 10 mm OD: PYB1004,PYB1004D; 12 mm OD: PYB1204,PYB1204D
    PH banjo elbow 8 mm OD: PH804,PH804D; 10 mm OD: PH1004,PH1004D; 12 mm OD: PH1204,PH1204D
    PHF female-branch banjo 8 mm OD: PHF804,PHF804D; 10 mm OD: PHF1004,PHF1004D; 12 mm OD: PHF1204,PHF1204D
    PHW twin banjo 8 mm OD: PHW804,PHW804D; 10 mm OD: PHW1004,PHW1004D; 12 mm OD: PHW1204,PHW1204D
    PZB cross fitting 8 mm OD: PZB804,PZB804D; 10 mm OD: PZB1004,PZB1004D; 12 mm OD: PZB1204,PZB1204D
    PC-S 6 mm OD: PC604-S,PC604D-S; 8 mm OD: PC804-S,PC804D-S; 10 mm OD: PC1004-S,PC1004D-S; 12 mm OD: PC1204-S,PC1204D-S
    POC-S 10 mm OD: POC1004-S,POC1004D-S; 12 mm OD: POC1204-S,POC1204D-S
    PL-S 6 mm OD: PL604-S,PL604D-S; 8 mm OD: PL804-S,PL804D-S; 10 mm OD: PL1004-S,PL1004D-S; 12 mm OD: PL1204-S,PL1204D-S
    PLL-S 10 mm OD: PLL1004-S,PLL1004D-S; 12 mm OD: PLL1204-S,PLL1204D-S
    PEB-S 8 mm OD: PEB804-S,PEB804D-S; 10 mm OD: PEB1004-S,PEB1004D-S; 12 mm OD: PEB1204-S,PEB1204D-S
    PED-S 8 mm OD: PED804-S,PED804D-S; 10 mm OD: PED1004-S,PED1004D-S; 12 mm OD: PED1204-S,PED1204D-S
    PYB-S 8 mm OD: PYB804-S,PYB804D-S; 10 mm OD: PYB1004-S,PYB1004D-S; 12 mm OD: PYB1204-S,PYB1204D-S
    PH-S 8 mm OD: PH804-S,PH804D-S; 10 mm OD: PH1004-S,PH1004D-S; 12 mm OD: PH1204-S,PH1204D-S
    PHF-S 8 mm OD: PHF804-S,PHF804D-S; 10 mm OD: PHF1004-S,PHF1004D-S; 12 mm OD: PHF1204-S,PHF1204D-S
    PHW-S 8 mm OD: PHW804-S,PHW804D-S; 10 mm OD: PHW1004-S,PHW1004D-S; 12 mm OD: PHW1204-S,PHW1204D-S
    PZB-S 8 mm OD: PZB804-S,PZB804D-S; 10 mm OD: PZB1004-S,PZB1004D-S; 12 mm OD: PZB1204-S,PZB1204D-S
    BPC metal straight 10 mm OD: BPC1004; 12 mm OD: BPC1204
    BPOC metal round straight 12 mm OD: BPOC1204
    BKC compression fitting 10 × 6.5 mm OD × ID: BKC1065-04; 10 × 7.5 or 8 mm OD × ID: BKC1075-04; 12 × 8 mm OD × ID: BKC1208-04; 12 × 9 or 10 mm OD × ID: BKC1209-04
    BKC-S 10 × 6.5 mm OD × ID: BKC1065-04-S; 10 × 7.5 or 8 mm OD × ID: BKC1075-04-S; 12 × 8 mm OD × ID: BKC1208-04-S; 12 × 9 or 10 mm OD × ID: BKC1209-04-S
    BB male–male adapter male PT1/4: BB0204; male PT3/8: BB0304; male PT1/2: BB0404
    BD male–female adapter female PT1/8: BD0104; female PT1/4: BD0204; female PT3/8: BD0304
    BZ auxiliary plug — unused auxiliary port only BZ04
    BB-S male PT1/4: BB0204-S; male PT3/8: BB0304-S; male PT1/2: BB0404-S
    BD-S female PT1/8: BD0104-S; female PT1/4: BD0204-S; female PT3/8: BD0304-S
    BZ-S — unused auxiliary port only BZ04-S
    BSL exhaust silencer — valve exhaust only BSL04
    BSLM miniature exhaust silencer — valve exhaust only BSLM04
    BESL throttling exhaust silencer — valve exhaust only BESL04
    BSL-S — valve exhaust only BSL04-S
    BSLM-S — valve exhaust only BSLM04-S
    BESL-S — valve exhaust only BESL04-S
    PAL plastic exhaust silencer — valve exhaust only PAL04,PAL04D
    PSL elbow flow control 8 mm OD: PSL804A,PSL804AD,PSL804B,PSL804BD; 10 mm OD: PSL1004A,PSL1004AD,PSL1004B,PSL1004BD; 12 mm OD: PSL1204A,PSL1204AD,PSL1204B,PSL1204BD
    PSS universal flow control 12 mm OD: PSS1204A,PSS1204AD,PSS1204B,PSS1204BD
    PTL push-lock flow control 8 mm OD: PTL804A,PTL804AD,PTL804B,PTL804BD; 10 mm OD: PTL1004A,PTL1004AD,PTL1004B,PTL1004BD; 12 mm OD: PTL1204A,PTL1204AD,PTL1204B,PTL1204BD
    PSL-S 8 mm OD: PSL804A-S,PSL804AD-S,PSL804B-S,PSL804BD-S; 10 mm OD: PSL1004A-S,PSL1004AD-S,PSL1004B-S,PSL1004BD-S; 12 mm OD: PSL1204A-S,PSL1204AD-S,PSL1204B-S,PSL1204BD-S
    PSS-S 12 mm OD: PSS1204A-S,PSS1204AD-S,PSS1204B-S,PSS1204BD-S
    PSA inline flow control 6 mm OD: PSA6,PSA6D; 8 mm OD: PSA8,PSA8D; 10 mm OD: PSA10,PSA10D; 12 mm OD: PSA12,PSA12D
    PSA-S 6 mm OD: PSA6-S,PSA6D-S; 8 mm OD: PSA8-S,PSA8D-S; 10 mm OD: PSA10-S,PSA10D-S; 12 mm OD: PSA12-S,PSA12D-S
    GPSA inline flow control 6 mm OD: GPSA6,GPSA6D; 8 mm OD: GPSA8,GPSA8D; 10 mm OD: GPSA10,GPSA10D; 12 mm OD: GPSA12,GPSA12D
    PPA plug-in exhaust silencer — valve exhaust only 6 mm OD: PPA6; 8 mm OD: PPA8; 10 mm OD: PPA10; 12 mm OD: PPA12
    US98A PU tubing 6 × 4 mm OD × ID: US98A060040100MBU; 8 × 5 mm OD × ID: US98A080050100MBU; 10 × 6.5 mm OD × ID: US98A100065100MBU; 12 × 8 mm OD × ID: US98A120080100MBU
    UE95A PU tubing 6 × 4 mm OD × ID: UE95A060040100MBU; 8 × 5 mm OD × ID: UE95A080050100MBU; 10 × 6.5 mm OD × ID: UE95A100065100MBU; 12 × 8 mm OD × ID: UE95A120080100MBU
    ASC inline threaded flow control two female PT1/2: ASC30015
    GAFR upstream filter/regulator female PT1/2: GAFR30015S,GAFR40015S

    All listed parts are separately selected alternatives, not an included kit or stock promise. Use PT1/2 cylinder fittings and the specified seal; PT, G and NPT are not interchangeable. Check insertion depth, tool/rotation clearance, flow and tube loading. G joints require the correct face seal and mating surface. The M27 × 2 rod thread is not an air port.

    Use suitable soft nylon or PU tube. Match OD, and compression fittings also require the stated ID. D is black and blank is gray where offered; -M is miniature. -S specifies only the stainless 304 parts identified in the component material table, not the whole cylinder/circuit. PHF has an additional female PT1/2 branch: connect or seal it as the designed circuit permits; it is not another tube socket. Tees, Y, cross and distribution fittings must not bridge the two cylinder chambers or unrelated control circuits.

    SE125 operates at 0.15–1 MPa and −20–70 °C. Ordinary push-in and listed flow controls are 0–1 MPa, −20–70 °C. BPC/BPOC is 0–0.9 MPa, 0–150 °C: the SE path is therefore no wider than 0.15–0.9 MPa and 0–70 °C. BKC/BB/BD/BZ is 0–1 MPa, 0–150 °C, limiting the SE path to 0.15–1 MPa and 0–70 °C. Every lower selected valve, tube and sensor limit still applies. Component vacuum ratings do not approve a vacuum SE assembly.

    BKC1065-04 accepts 10 × 6.5 mm tube; BKC1075-04 accepts 10 × 7.5 or 10 × 8 mm; BKC1208-04 accepts 12 × 8 mm; BKC1209-04 accepts 12 × 9 or 12 × 10 mm. No 8 mm compression fitting is listed here. Hold the body hex during thread installation, not the tube-locking nut; insert tube fully and tighten the nut. BB/BD requires the exact size and gender shown for the second end. BD/GBD ordering identifies the female size first and male size second. BZ closes only a permitted unused auxiliary port, never either active cylinder working port.

    At a cylinder port, A restricts cylinder/thread → tube exhaust (meter-out), with free reverse supply; B restricts tube → cylinder supply (meter-in). Use A for the usual double-acting exhaust-control circuit; choose B only for a designed meter-in circuit. Start closed and open slowly. Flow control is not safety isolation. PTL 1/2 cap adjustment is recommended at 0.32 N·m, not pipe-thread installation torque. PSA/GPSA are threadless tube-to-tube controls without an A/B suffix; match both tube ODs and the body check/throttle symbol. The G in GPSA does not specify a G-thread port.

    PPA6/PPA8/PPA10/PPA12 have 6/8/10/12 mm plain stems, requiring matching metric push-in sockets on the separately selected directional-valve exhaust. PPA uses POM body/cap and PE filter, rated 0–1 MPa and −20–70 °C; 25 dB at 0.5 MPa is a catalog test, not a site-noise promise. PPA has no D or thread suffix. PPA and threaded silencers must not occupy cylinder working ports or serve as inlet filters or safety shutoffs. Match actual exhaust thread/flow and check backpressure; BESL adjustment changes backpressure.

    ASC is a separate female-port inline control requiring its own fittings; follow P/A and the check/throttle symbol. Its 0.05–0.95 MPa component range limits the SE path to 0.15–0.95 MPa before other lower limits. Use 40 µm or finer filtered air.

    GAFR300/400 S examples are separately connected upstream compressed-air filter/regulators: PC bowl, manual/differential-pressure drain, bracket, round clip-on gauge, 40 µm element and no reverse-flow valve. Inlet ≤1 MPa; setting 0.15–0.9 MPa; −5–70 °C, non-freezing. Check required flow, pressure drop, condensate and bowl environment; not a vacuum regulator, cylinder-mounted part or mandatory bore-specific size. Set pressure within every downstream rating.

    US98A/UE95A examples are blue 100 m coils, not supplied cut lengths. Their 1 MPa rating is at 23 °C and requires temperature derating. US98A is −20–70 °C; UE95A is −40–70 °C, while the SE assembly stays within every component limit. Match OD and ID, bend radius, routing and actual flow. No listed tube OD carries a verified SE125 reference-speed association; size the complete flow path for the actual duty.

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