Airtac SCJ series: adjustable double-rod cylinder - SCJ125X1237-100HG

Photos are for reference only. Not all models have pictures.

Description

Specifications: SCJ125X1237-100HG — Airtac SCJ double-rod, double-acting stroke-adjustable tie-rod cylinder; 125 mm bore, 1237 mm nominal stroke, 100 mm adjustment option, without magnet, Fluororubber seal option and G1/2 working ports.

Product Catalog

Download Airtac Product Catalog (PDF)

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

Model Code Explained

Code Meaning
SCJ Double-rod, double-acting cylinder with adjustable stroke
125 125 mm bore
X Separator before nominal stroke
1237 1237 mm nominal stroke
- Separator before adjustment stroke
100 100 mm adjustment-stroke option
No magnet suffix Without built-in magnet
No mounting suffix Basic mounting
H Fluororubber seal option
G G1/2 working ports

Technical Specifications

Parameter Value
Model SCJ125X1237-100HG
Action Double acting, double rod, adjustable stroke
Bore 125 mm
Nominal stroke 1237 mm; Special stroke; confirm order and delivery conditions
Adjustment stroke 100 mm adjustment option, not a second powered stroke
Construction Tie-rod; ISO6430: SC-family design reference, not verified SCJ overall conformity
Magnetic piston Without magnet; magnetic sensors require an S cylinder
Mounting selection Basic mounting
Seal option Fluororubber (H); basic O-ring materials are family references
Port thread G1/2; two working air ports
Working medium Clean compressed air; 40 µm or finer filtration
Operating pressure 0.15–1.0 MPa (1.5–10 bar; approximately 22–145 psi)
Proof pressure 1.5 MPa (15 bar); not continuous operating pressure
Operating temperature H: confirm the ordered temperature range; avoid freezing condensate
Piston speed 30–500 mm/s; match controls to load, piping and adjustment
Nominal-stroke tolerance +2 / 0 mm
Cushioning Adjustable pneumatic cushioning; 28 mm nominal cushion-stroke reference
Rod diameter / end thread 32 mm / M27×2.0
Sensor selection Magnetic sensing requires an S cylinder; a sensor adds no magnet
Estimated cylinder weight 30105 g; engineering reference, not measured shipping weight

Engineering weight estimate using the same-bore SC catalog as a baseline plus an equivalent extra-rod allowance with representative steel density. The adjustment mechanism, changed covers, H seals and internal details are not separately mass-resolved. Mounts, rod-end joints, sensors, fittings and packaging are excluded. This is not an official SCJ net mass or a measured shipping weight; no error bound is established. Use the actual weighed assembly for handling and shipping.

Confirm actual travel, stop setting and end positions; the adjustment code alone does not specify usable travel. Check cushioning at the setting; strokes shorter than 28 mm cannot provide full nominal cushion travel.

Features and Operation

SCJ provides double-acting through-rod motion and stroke adjustment. Family references: aluminium-alloy barrel and covers with tie rods, compact bidirectional grease-retaining piston seal, adjustable pneumatic cushioning.

The 150 °C special-seal feature gives no full H range; confirm ordered cylinder and component ratings.

External and Mounting Dimensions

Dimensions: mm except threads; magnetic/nonmagnetic basic dimensions are equal. Drawing lengths do not guarantee the installed/moving envelope. Check clearance for both rods, adjustment, mounts, rod joints, fittings and sensors.

Parameter Value
Overall drawing reference: A + 2 × stroke + adjustment 2839.5 mm = 265.5 + 2 × 1237 + 100
Body face span: AC + stroke 1352 mm = 115 + 1237
Rear drawing span: DB + stroke + adjustment 1379.5 mm = 42.5 + 1237 + 100
Rear adjustment reference: DB + adjustment 142.5 mm = 42.5 + 100
Body width × height 136 × 136 mm (□B)
Mounting holes 8 × M12×1.75 (K), 21.5 mm deep (KA); 104 × 104 mm centers (□KB)
Rod diameter / end thread D = 32 mm; E = M27×2.0; EA = 54 mm
Front locating and local geometry M = 52; MA = 20; AB = 88; DA = 68; F = 41; FA = 13.5; H = 27 mm
Cover / port local geometry AD = 38; AE = 38; PA = 20; PB = 14 mm; P = G1/2

Mounting and Rod-End Accessories

Mounting: basic, LB, FA or TC with TCM1; match load direction and motion. Listed parts do not imply included supply/quantity. Confirm assembly and support quantities for seller-defined TC+TCM1.

Part / assembly code Application and reference
F-SC125LB Foot mount; Ductile cast iron
F-SC125FA Front flange; Ductile cast iron
F-SC125TC Trunnion mount; Ductile cast iron; order with the cylinder and match TCM1
F-SC125TCM1 Trunnion support; Ductile cast iron
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-M27X200F Floating joint; 1470 g catalog reference. 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°.
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 rod-end choices use M27×2.0. Dimensions are in mm except threads and angles. MK is floating-joint angular compensation. PH is the spherical-joint angle. Carbon-steel classification does not specify all subcomponents/finishes. Add only supplied accessory mass. The floating-joint radial-offset note for M6 and smaller does not apply.

Verify genuine SCJ seal kits, wear rings, guide bushings, nuts, covers and adjustment parts by exact model, seal and production revision. Drawing numbers and bore size are not service ordering codes. This nonmagnetic configuration has no built-in magnet.

Force and Circuit Selection

Parameter Value
Ideal effective area, both directions 11467.60 mm² = π / 4 × (125² − 32²)
Calculated force at 0.5 MPa, both directions 5733.80 N
Force calculation Force (N) = annular pressure area (mm²) × pressure (MPa), before friction, backpressure and dynamic losses
Load-ratio guidance Up to 0.7 at static/low speed, 0.5 at 50–500 mm/s and 0.3 above 500 mm/s, subject to cylinder speed limits; not guaranteed payload/structural safety factors

Equal-diameter through-rod calculation. Size for annular area, load, adjusted travel, line losses, valve flow and exhaust backpressure; bore alone does not determine speed/payload.

Installation and Maintenance

Qualified staff must select, install and service the system. Guard both moving rod ends and secure the cylinder, loads and attachments. Before service or adjustment, isolate air and electricity, vent pressure and secure motion. Design safe responses to air/power loss, emergency stops and restart.

Check protection from corrosive gas, chemicals, solvents, salt, water or steam, explosive atmospheres, vibration, radiant heat and sunlight. Protect sliding surfaces from damage, dust, humidity, splashes, oil and coolant. Prevent condensate freezing; external magnetic fields may disturb magnetic sensing.

Use clean, dry, purified compressed air. Remove water, particles, oxidized oil, tar and carbon; filter to 40 µm or finer. Confirm suitability for other fluids and synthetic-oil contaminants. Excessively dry air may shorten life unless the component is designed for it.

Factory lubrication normally needs no added oil. Once oil is introduced, continue additive-free ISO-VG32 turbine oil; incompatible oil may swell seals. The guide gives oil mist ≤25 mg/m³ and 0.5–5 drops per 1000 L. Size the lubricator for actual flow and avoid excess oil.

Blow pipes clean; start sealing tape 1.5–2 threads back to keep fragments out. Use suitable flame-resistant or metal tube near hot spatter. Check each tube’s pressure, temperature, OD, ID and bend radius; generic nylon/PU advice cannot override its rating.

PT1/2 piping torque: 12–15 N·m with the specified mating connection; not a G/NPT installation or sensor-adjustment torque.

Use speed controls at both working ports; start closed and open slowly. Meter-out commonly stabilizes motion and reduces startup runout. Adjust cushioning gradually for the load and speed, avoiding impact, rebound or forcing its screw. High mass or speed may need engineered deceleration or an external absorber.

Air compressibility and leakage prevent assuming precise prolonged intermediate stopping with a closed-center valve or precise cylinder synchronization. Verify the adjusted travel, mechanical stop setting, available cushioning, air consumption and clearances for the actual application.

Align rod and load motion and provide independent guidance against side load, bending and torque. Check long-rod buckling, sag and vibration; support long spans and limit unsupported lever arms. Use a suitable TC pivot arrangement for swinging motion rather than forcing a rigid LB mount. Check bracket loads and flange orientation.

During long storage, operate periodically and prevent corrosion, following the air-quality and lubrication requirements.

Internal Components — Family Reference

Materials below are basic SC-family references, not this H version’s bill of materials. Not a complete SCJ double-rod/adjustment-mechanism BOM. Item numbers identify drawing references, not service codes; verify parts for the production revision.

Family drawing item Basic material reference
1 — Rod-end nut Carbon steel
2 — Piston rod S45C hard-chrome-plated ground rod
3 — Front-cover O-ring NBR
4 — Guide bushing Wear-resistant material
5 — Front cover Aluminium alloy
6 — Cushion O-ring TPU
7 — O-type seal ring NBR
8 — Cylinder barrel Aluminium alloy
9 — Piston Aluminium alloy
10 — Piston-rod O-ring NBR
11 — Piston O-ring NBR
12 — Magnet Not included in the nonmagnetic configuration
13 — Wear ring Wear-resistant material
14 — Hex-socket screw Carbon steel
15 — Rear cover Aluminium alloy
16 — Tie rod Carbon steel
17 — Tie-rod nut Carbon steel

Series Ordering Options

Parameter Value
Series identity SCJ: double-rod, double-acting cylinder with adjustable stroke
Adjustment-stroke options 10, 20, 30, 40, 50, 75, 100 mm; second numeric slot after the hyphen
Magnet No suffix: without magnet; S: magnetic piston
Seal material No suffix: NBR; H: Fluororubber. This product uses H Fluororubber.
Mounting Basic, LB, FA or TC with matching TCM1; TC+TCM1 package identifiers are seller-defined
Thread options PT, G and NPT; match the complete ordered port and fitting thread
Standard nominal strokes 25, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, 1000 mm
Catalog nominal-stroke limits Maximum stroke 1500 mm; allowable stroke 2000 mm

The large-bore page gives no numerical non-standard-stroke threshold. Confirm ordering/delivery of other non-listed strokes. Match travel and clearance to the actual adjustment; it is not a powered stage.

Connection and Tube-Side Options

Separately selected component Complete ordering codes; tube dimensions as labelled
GPC straight 6 mm OD: GPC604,GPC604D; 8 mm OD: GPC804,GPC804D; 10 mm OD: GPC1004,GPC1004D; 12 mm OD: GPC1204,GPC1204D
GPL elbow 6 mm OD: GPL604,GPL604D; 8 mm OD: GPL804,GPL804D; 10 mm OD: GPL1004,GPL1004D; 12 mm OD: GPL1204,GPL1204D
GPLL extended elbow 10 mm OD: GPLL1004,GPLL1004D; 12 mm OD: GPLL1204,GPLL1204D
GPEB branch tee 8 mm OD: GPEB804,GPEB804D; 10 mm OD: GPEB1004,GPEB1004D; 12 mm OD: GPEB1204,GPEB1204D
GPED run tee 8 mm OD: GPED804,GPED804D; 10 mm OD: GPED1004,GPED1004D; 12 mm OD: GPED1204,GPED1204D
GPYB Y fitting 8 mm OD: GPYB804,GPYB804D; 10 mm OD: GPYB1004,GPYB1004D; 12 mm OD: GPYB1204,GPYB1204D
GPH banjo elbow 8 mm OD: GPH804,GPH804D; 10 mm OD: GPH1004,GPH1004D; 12 mm OD: GPH1204,GPH1204D
GPHF female-branch banjo 8 mm OD: GPHF804,GPHF804D; 10 mm OD: GPHF1004,GPHF1004D; 12 mm OD: GPHF1204,GPHF1204D
GPHW twin banjo 8 mm OD: GPHW804,GPHW804D; 10 mm OD: GPHW1004,GPHW1004D; 12 mm OD: GPHW1204,GPHW1204D
GPZB cross fitting 8 mm OD: GPZB804,GPZB804D; 10 mm OD: GPZB1004,GPZB1004D; 12 mm OD: GPZB1204,GPZB1204D
GBPC metal straight 10 mm OD: GBPC1004; 12 mm OD: GBPC1204
GBKC compression fitting 10 × 6.5 mm OD × ID: GBKC1065-04; 10 × 7.5 or 8 mm OD × ID: GBKC1075-04; 12 × 8 mm OD × ID: GBKC1208-04; 12 × 9 or 10 mm OD × ID: GBKC1209-04
GBB male–male adapter other end male G1/4: GBB0204; other end male G3/8: GBB0304; other end male G1/2: GBB0404
GBD male–female adapter other end female G1/8: GBD0104; other end female G1/4: GBD0204; other end female G3/8: GBD0304
GBZ unused auxiliary plug GBZ04
GBSL valve-exhaust silencer GBSL04
GBSLM miniature valve-exhaust silencer GBSLM04
GBESL adjustable valve-exhaust silencer GBESL04
GPSS universal flow control 12 mm OD: GPSS1204A,GPSS1204AD,GPSS1204B,GPSS1204BD
GPTL push-lock flow control 8 mm OD: GPTL804A,GPTL804AD,GPTL804B,GPTL804BD; 10 mm OD: GPTL1004A,GPTL1004AD,GPTL1004B,GPTL1004BD; 12 mm OD: GPTL1204A,GPTL1204AD,GPTL1204B,GPTL1204BD
PSA tube-to-tube flow control 6 mm OD: PSA6,PSA6D,PSA6-S,PSA6D-S; 8 mm OD: PSA8,PSA8D,PSA8-S,PSA8D-S; 10 mm OD: PSA10,PSA10D,PSA10-S,PSA10D-S; 12 mm OD: PSA12,PSA12D,PSA12-S,PSA12D-S
GPSA tube-to-tube flow control 6 mm OD: GPSA6,GPSA6D; 8 mm OD: GPSA8,GPSA8D; 10 mm OD: GPSA10,GPSA10D; 12 mm OD: GPSA12,GPSA12D
PPA valve-exhaust plug-in silencer 6 mm stem OD: PPA6; 8 mm stem OD: PPA8; 10 mm stem OD: PPA10; 12 mm stem 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 separate inline flow control two female G1/2: ASC30015G
GAFR upstream filter/regulator female G1/2: GAFR30015SG,GAFR40015SG

Separate options; no included-kit or stock promise. Connect both SCJ125 working ports using G1/2 fittings and the specified seal; check insertion depth, wrench/rotation clearance, flow and tube loading. PT/G/NPT are not interchangeable. G joints need the correct face seal and mating surface. The M27×2.0 rod thread is not an air port.

Use suitable soft nylon/PU tubing: exact OD, plus ID for compression. Where offered: D=black, blank=grey, -M=miniature. -S identifies specified stainless-304 parts, not an all-stainless assembly. GPHF has male RA and extra female RB, both G1/2; connect or seal RB as designed. RB is not a tube socket. Tees/Y/cross/distributors must not bridge chambers or unrelated controls.

Push-in fittings, direct/threadless controls and listed silencers: 0–1 MPa, −20–70 °C. GBPC: 0–0.9 MPa, 0–150 °C; SCJ path 0.15–0.9 MPa. GBKC/GBB/GBD/GBZ: 0–1 MPa, 0–150 °C; SCJ path 0.15–1 MPa. Use the actual H-cylinder temperature rating and every component limit; no complete H-system range is inferred. Obey lower valve/tube/sensor limits; component vacuum data do not rate the cylinder assembly.

Install threads with the body hex, not the locking nut; insert tubing fully before tightening. GBB/GBD use one thread standard: BB male–male, BD male–female; other ends are labelled in the table. Match its gender/size and flow; no cross-thread conversion. GBZ closes permitted unused auxiliary ports only, never active cylinder ports.

At the cylinder, A meters thread→tube exhaust (meter-out), with free reverse supply; B meters tube→cylinder supply (meter-in). A is usual for double action; B needs a designed meter-in circuit. Start closed, open slowly; closed leakage is allowed, so these are not shutoffs. GPTL caps on 1/2-port variants: adjustment reference: 0.32 N·m, not pipe-thread torque. Never force caps/end stops. PSA/PSA-S/GPSA are metric tube-to-tube controls, no A/B suffixes; match both ODs and the body check/throttle symbol. GPSA does not mean G thread.

Silencers: separate valve exhaust only. Match its actual thread, flow and backpressure; not cylinder-port fittings, inlet filters or shutoffs. GBESL adjusts backpressure. PPA6/8/10/12 use plain metric stems in matching sockets: POM body/cap, PE filter, 0–1 MPa, −20–70 °C; 25 dB at 0.5 MPa is a catalog test, not an onsite noise promise. PPA has no D or thread suffix. The referenced GBSL catalog test is 13 dB at 0.5 MPa; do not apply PT noise figures to G variants.

ASC30015G: separate two-female-G1/2-port inline control; needs male fittings. Follow P/A and the check/throttle symbol. 0.05–0.95 MPa, −20–70 °C and 40 µm-or-finer filtered air; SCJ path 0.15–0.95 MPa before lower limits. Rated flow does not guarantee cylinder speed.

GAFR30015SG,GAFR40015SG: separate upstream G1/2 filter/regulator, 40 µm element, PC bowl, differential/manual drain, bracket and round gauge, no reverse-flow valve. Inlet ≤1 MPa, setting 0.15–0.9 MPa, −5–70 °C non-freezing. Respect IN/OUT, flow/pressure loss, condensate, bowl environment and all downstream limits; not a cylinder fitting or vacuum regulator.

US98A/UE95A examples: blue 100 m coils, not supplied cut lengths. Rated 1 MPa at 23 °C, temperature derating required: US98A −20–70 °C, UE95A −40–70 °C. Match OD/ID, bend radius, routing and flow; thinner low-pressure tubes are not equivalent. Size flow for the SCJ annular area and actual load; no achieved speed is guaranteed.

A 16 × 11 mm reference tube needs separately specified 16 mm endpoint fittings and controls; the listed 12 mm sockets do not form that connection.

SCJ has two working ports and equal-diameter rods. Size flow using its annular pressure area, actual load, adjusted travel, piping losses and exhaust backpressure; a general bore-based chart does not guarantee SCJ speed.

Product form

Specifications: SCJ125X1237-100HG — Airtac SCJ double-rod, double-acting stroke-adjustable tie-rod cylinder; 125 mm bore, 1237 mm nominal stroke, 100 mm adjustment... Read more

SKU: SCJ125X1237-100HG

$1,498.62 Incl. VAT

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    Description

    Specifications: SCJ125X1237-100HG — Airtac SCJ double-rod, double-acting stroke-adjustable tie-rod cylinder; 125 mm bore, 1237 mm nominal stroke, 100 mm adjustment option, without magnet, Fluororubber seal option and G1/2 working ports.

    Product Catalog

    Download Airtac Product Catalog (PDF)

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

    Model Code Explained

    Code Meaning
    SCJ Double-rod, double-acting cylinder with adjustable stroke
    125 125 mm bore
    X Separator before nominal stroke
    1237 1237 mm nominal stroke
    - Separator before adjustment stroke
    100 100 mm adjustment-stroke option
    No magnet suffix Without built-in magnet
    No mounting suffix Basic mounting
    H Fluororubber seal option
    G G1/2 working ports

    Technical Specifications

    Parameter Value
    Model SCJ125X1237-100HG
    Action Double acting, double rod, adjustable stroke
    Bore 125 mm
    Nominal stroke 1237 mm; Special stroke; confirm order and delivery conditions
    Adjustment stroke 100 mm adjustment option, not a second powered stroke
    Construction Tie-rod; ISO6430: SC-family design reference, not verified SCJ overall conformity
    Magnetic piston Without magnet; magnetic sensors require an S cylinder
    Mounting selection Basic mounting
    Seal option Fluororubber (H); basic O-ring materials are family references
    Port thread G1/2; two working air ports
    Working medium Clean compressed air; 40 µm or finer filtration
    Operating pressure 0.15–1.0 MPa (1.5–10 bar; approximately 22–145 psi)
    Proof pressure 1.5 MPa (15 bar); not continuous operating pressure
    Operating temperature H: confirm the ordered temperature range; avoid freezing condensate
    Piston speed 30–500 mm/s; match controls to load, piping and adjustment
    Nominal-stroke tolerance +2 / 0 mm
    Cushioning Adjustable pneumatic cushioning; 28 mm nominal cushion-stroke reference
    Rod diameter / end thread 32 mm / M27×2.0
    Sensor selection Magnetic sensing requires an S cylinder; a sensor adds no magnet
    Estimated cylinder weight 30105 g; engineering reference, not measured shipping weight

    Engineering weight estimate using the same-bore SC catalog as a baseline plus an equivalent extra-rod allowance with representative steel density. The adjustment mechanism, changed covers, H seals and internal details are not separately mass-resolved. Mounts, rod-end joints, sensors, fittings and packaging are excluded. This is not an official SCJ net mass or a measured shipping weight; no error bound is established. Use the actual weighed assembly for handling and shipping.

    Confirm actual travel, stop setting and end positions; the adjustment code alone does not specify usable travel. Check cushioning at the setting; strokes shorter than 28 mm cannot provide full nominal cushion travel.

    Features and Operation

    SCJ provides double-acting through-rod motion and stroke adjustment. Family references: aluminium-alloy barrel and covers with tie rods, compact bidirectional grease-retaining piston seal, adjustable pneumatic cushioning.

    The 150 °C special-seal feature gives no full H range; confirm ordered cylinder and component ratings.

    External and Mounting Dimensions

    Dimensions: mm except threads; magnetic/nonmagnetic basic dimensions are equal. Drawing lengths do not guarantee the installed/moving envelope. Check clearance for both rods, adjustment, mounts, rod joints, fittings and sensors.

    Parameter Value
    Overall drawing reference: A + 2 × stroke + adjustment 2839.5 mm = 265.5 + 2 × 1237 + 100
    Body face span: AC + stroke 1352 mm = 115 + 1237
    Rear drawing span: DB + stroke + adjustment 1379.5 mm = 42.5 + 1237 + 100
    Rear adjustment reference: DB + adjustment 142.5 mm = 42.5 + 100
    Body width × height 136 × 136 mm (□B)
    Mounting holes 8 × M12×1.75 (K), 21.5 mm deep (KA); 104 × 104 mm centers (□KB)
    Rod diameter / end thread D = 32 mm; E = M27×2.0; EA = 54 mm
    Front locating and local geometry M = 52; MA = 20; AB = 88; DA = 68; F = 41; FA = 13.5; H = 27 mm
    Cover / port local geometry AD = 38; AE = 38; PA = 20; PB = 14 mm; P = G1/2

    Mounting and Rod-End Accessories

    Mounting: basic, LB, FA or TC with TCM1; match load direction and motion. Listed parts do not imply included supply/quantity. Confirm assembly and support quantities for seller-defined TC+TCM1.

    Part / assembly code Application and reference
    F-SC125LB Foot mount; Ductile cast iron
    F-SC125FA Front flange; Ductile cast iron
    F-SC125TC Trunnion mount; Ductile cast iron; order with the cylinder and match TCM1
    F-SC125TCM1 Trunnion support; Ductile cast iron
    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-M27X200F Floating joint; 1470 g catalog reference. 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°.
    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 rod-end choices use M27×2.0. Dimensions are in mm except threads and angles. MK is floating-joint angular compensation. PH is the spherical-joint angle. Carbon-steel classification does not specify all subcomponents/finishes. Add only supplied accessory mass. The floating-joint radial-offset note for M6 and smaller does not apply.

    Verify genuine SCJ seal kits, wear rings, guide bushings, nuts, covers and adjustment parts by exact model, seal and production revision. Drawing numbers and bore size are not service ordering codes. This nonmagnetic configuration has no built-in magnet.

    Force and Circuit Selection

    Parameter Value
    Ideal effective area, both directions 11467.60 mm² = π / 4 × (125² − 32²)
    Calculated force at 0.5 MPa, both directions 5733.80 N
    Force calculation Force (N) = annular pressure area (mm²) × pressure (MPa), before friction, backpressure and dynamic losses
    Load-ratio guidance Up to 0.7 at static/low speed, 0.5 at 50–500 mm/s and 0.3 above 500 mm/s, subject to cylinder speed limits; not guaranteed payload/structural safety factors

    Equal-diameter through-rod calculation. Size for annular area, load, adjusted travel, line losses, valve flow and exhaust backpressure; bore alone does not determine speed/payload.

    Installation and Maintenance

    Qualified staff must select, install and service the system. Guard both moving rod ends and secure the cylinder, loads and attachments. Before service or adjustment, isolate air and electricity, vent pressure and secure motion. Design safe responses to air/power loss, emergency stops and restart.

    Check protection from corrosive gas, chemicals, solvents, salt, water or steam, explosive atmospheres, vibration, radiant heat and sunlight. Protect sliding surfaces from damage, dust, humidity, splashes, oil and coolant. Prevent condensate freezing; external magnetic fields may disturb magnetic sensing.

    Use clean, dry, purified compressed air. Remove water, particles, oxidized oil, tar and carbon; filter to 40 µm or finer. Confirm suitability for other fluids and synthetic-oil contaminants. Excessively dry air may shorten life unless the component is designed for it.

    Factory lubrication normally needs no added oil. Once oil is introduced, continue additive-free ISO-VG32 turbine oil; incompatible oil may swell seals. The guide gives oil mist ≤25 mg/m³ and 0.5–5 drops per 1000 L. Size the lubricator for actual flow and avoid excess oil.

    Blow pipes clean; start sealing tape 1.5–2 threads back to keep fragments out. Use suitable flame-resistant or metal tube near hot spatter. Check each tube’s pressure, temperature, OD, ID and bend radius; generic nylon/PU advice cannot override its rating.

    PT1/2 piping torque: 12–15 N·m with the specified mating connection; not a G/NPT installation or sensor-adjustment torque.

    Use speed controls at both working ports; start closed and open slowly. Meter-out commonly stabilizes motion and reduces startup runout. Adjust cushioning gradually for the load and speed, avoiding impact, rebound or forcing its screw. High mass or speed may need engineered deceleration or an external absorber.

    Air compressibility and leakage prevent assuming precise prolonged intermediate stopping with a closed-center valve or precise cylinder synchronization. Verify the adjusted travel, mechanical stop setting, available cushioning, air consumption and clearances for the actual application.

    Align rod and load motion and provide independent guidance against side load, bending and torque. Check long-rod buckling, sag and vibration; support long spans and limit unsupported lever arms. Use a suitable TC pivot arrangement for swinging motion rather than forcing a rigid LB mount. Check bracket loads and flange orientation.

    During long storage, operate periodically and prevent corrosion, following the air-quality and lubrication requirements.

    Internal Components — Family Reference

    Materials below are basic SC-family references, not this H version’s bill of materials. Not a complete SCJ double-rod/adjustment-mechanism BOM. Item numbers identify drawing references, not service codes; verify parts for the production revision.

    Family drawing item Basic material reference
    1 — Rod-end nut Carbon steel
    2 — Piston rod S45C hard-chrome-plated ground rod
    3 — Front-cover O-ring NBR
    4 — Guide bushing Wear-resistant material
    5 — Front cover Aluminium alloy
    6 — Cushion O-ring TPU
    7 — O-type seal ring NBR
    8 — Cylinder barrel Aluminium alloy
    9 — Piston Aluminium alloy
    10 — Piston-rod O-ring NBR
    11 — Piston O-ring NBR
    12 — Magnet Not included in the nonmagnetic configuration
    13 — Wear ring Wear-resistant material
    14 — Hex-socket screw Carbon steel
    15 — Rear cover Aluminium alloy
    16 — Tie rod Carbon steel
    17 — Tie-rod nut Carbon steel

    Series Ordering Options

    Parameter Value
    Series identity SCJ: double-rod, double-acting cylinder with adjustable stroke
    Adjustment-stroke options 10, 20, 30, 40, 50, 75, 100 mm; second numeric slot after the hyphen
    Magnet No suffix: without magnet; S: magnetic piston
    Seal material No suffix: NBR; H: Fluororubber. This product uses H Fluororubber.
    Mounting Basic, LB, FA or TC with matching TCM1; TC+TCM1 package identifiers are seller-defined
    Thread options PT, G and NPT; match the complete ordered port and fitting thread
    Standard nominal strokes 25, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, 1000 mm
    Catalog nominal-stroke limits Maximum stroke 1500 mm; allowable stroke 2000 mm

    The large-bore page gives no numerical non-standard-stroke threshold. Confirm ordering/delivery of other non-listed strokes. Match travel and clearance to the actual adjustment; it is not a powered stage.

    Connection and Tube-Side Options

    Separately selected component Complete ordering codes; tube dimensions as labelled
    GPC straight 6 mm OD: GPC604,GPC604D; 8 mm OD: GPC804,GPC804D; 10 mm OD: GPC1004,GPC1004D; 12 mm OD: GPC1204,GPC1204D
    GPL elbow 6 mm OD: GPL604,GPL604D; 8 mm OD: GPL804,GPL804D; 10 mm OD: GPL1004,GPL1004D; 12 mm OD: GPL1204,GPL1204D
    GPLL extended elbow 10 mm OD: GPLL1004,GPLL1004D; 12 mm OD: GPLL1204,GPLL1204D
    GPEB branch tee 8 mm OD: GPEB804,GPEB804D; 10 mm OD: GPEB1004,GPEB1004D; 12 mm OD: GPEB1204,GPEB1204D
    GPED run tee 8 mm OD: GPED804,GPED804D; 10 mm OD: GPED1004,GPED1004D; 12 mm OD: GPED1204,GPED1204D
    GPYB Y fitting 8 mm OD: GPYB804,GPYB804D; 10 mm OD: GPYB1004,GPYB1004D; 12 mm OD: GPYB1204,GPYB1204D
    GPH banjo elbow 8 mm OD: GPH804,GPH804D; 10 mm OD: GPH1004,GPH1004D; 12 mm OD: GPH1204,GPH1204D
    GPHF female-branch banjo 8 mm OD: GPHF804,GPHF804D; 10 mm OD: GPHF1004,GPHF1004D; 12 mm OD: GPHF1204,GPHF1204D
    GPHW twin banjo 8 mm OD: GPHW804,GPHW804D; 10 mm OD: GPHW1004,GPHW1004D; 12 mm OD: GPHW1204,GPHW1204D
    GPZB cross fitting 8 mm OD: GPZB804,GPZB804D; 10 mm OD: GPZB1004,GPZB1004D; 12 mm OD: GPZB1204,GPZB1204D
    GBPC metal straight 10 mm OD: GBPC1004; 12 mm OD: GBPC1204
    GBKC compression fitting 10 × 6.5 mm OD × ID: GBKC1065-04; 10 × 7.5 or 8 mm OD × ID: GBKC1075-04; 12 × 8 mm OD × ID: GBKC1208-04; 12 × 9 or 10 mm OD × ID: GBKC1209-04
    GBB male–male adapter other end male G1/4: GBB0204; other end male G3/8: GBB0304; other end male G1/2: GBB0404
    GBD male–female adapter other end female G1/8: GBD0104; other end female G1/4: GBD0204; other end female G3/8: GBD0304
    GBZ unused auxiliary plug GBZ04
    GBSL valve-exhaust silencer GBSL04
    GBSLM miniature valve-exhaust silencer GBSLM04
    GBESL adjustable valve-exhaust silencer GBESL04
    GPSS universal flow control 12 mm OD: GPSS1204A,GPSS1204AD,GPSS1204B,GPSS1204BD
    GPTL push-lock flow control 8 mm OD: GPTL804A,GPTL804AD,GPTL804B,GPTL804BD; 10 mm OD: GPTL1004A,GPTL1004AD,GPTL1004B,GPTL1004BD; 12 mm OD: GPTL1204A,GPTL1204AD,GPTL1204B,GPTL1204BD
    PSA tube-to-tube flow control 6 mm OD: PSA6,PSA6D,PSA6-S,PSA6D-S; 8 mm OD: PSA8,PSA8D,PSA8-S,PSA8D-S; 10 mm OD: PSA10,PSA10D,PSA10-S,PSA10D-S; 12 mm OD: PSA12,PSA12D,PSA12-S,PSA12D-S
    GPSA tube-to-tube flow control 6 mm OD: GPSA6,GPSA6D; 8 mm OD: GPSA8,GPSA8D; 10 mm OD: GPSA10,GPSA10D; 12 mm OD: GPSA12,GPSA12D
    PPA valve-exhaust plug-in silencer 6 mm stem OD: PPA6; 8 mm stem OD: PPA8; 10 mm stem OD: PPA10; 12 mm stem 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 separate inline flow control two female G1/2: ASC30015G
    GAFR upstream filter/regulator female G1/2: GAFR30015SG,GAFR40015SG

    Separate options; no included-kit or stock promise. Connect both SCJ125 working ports using G1/2 fittings and the specified seal; check insertion depth, wrench/rotation clearance, flow and tube loading. PT/G/NPT are not interchangeable. G joints need the correct face seal and mating surface. The M27×2.0 rod thread is not an air port.

    Use suitable soft nylon/PU tubing: exact OD, plus ID for compression. Where offered: D=black, blank=grey, -M=miniature. -S identifies specified stainless-304 parts, not an all-stainless assembly. GPHF has male RA and extra female RB, both G1/2; connect or seal RB as designed. RB is not a tube socket. Tees/Y/cross/distributors must not bridge chambers or unrelated controls.

    Push-in fittings, direct/threadless controls and listed silencers: 0–1 MPa, −20–70 °C. GBPC: 0–0.9 MPa, 0–150 °C; SCJ path 0.15–0.9 MPa. GBKC/GBB/GBD/GBZ: 0–1 MPa, 0–150 °C; SCJ path 0.15–1 MPa. Use the actual H-cylinder temperature rating and every component limit; no complete H-system range is inferred. Obey lower valve/tube/sensor limits; component vacuum data do not rate the cylinder assembly.

    Install threads with the body hex, not the locking nut; insert tubing fully before tightening. GBB/GBD use one thread standard: BB male–male, BD male–female; other ends are labelled in the table. Match its gender/size and flow; no cross-thread conversion. GBZ closes permitted unused auxiliary ports only, never active cylinder ports.

    At the cylinder, A meters thread→tube exhaust (meter-out), with free reverse supply; B meters tube→cylinder supply (meter-in). A is usual for double action; B needs a designed meter-in circuit. Start closed, open slowly; closed leakage is allowed, so these are not shutoffs. GPTL caps on 1/2-port variants: adjustment reference: 0.32 N·m, not pipe-thread torque. Never force caps/end stops. PSA/PSA-S/GPSA are metric tube-to-tube controls, no A/B suffixes; match both ODs and the body check/throttle symbol. GPSA does not mean G thread.

    Silencers: separate valve exhaust only. Match its actual thread, flow and backpressure; not cylinder-port fittings, inlet filters or shutoffs. GBESL adjusts backpressure. PPA6/8/10/12 use plain metric stems in matching sockets: POM body/cap, PE filter, 0–1 MPa, −20–70 °C; 25 dB at 0.5 MPa is a catalog test, not an onsite noise promise. PPA has no D or thread suffix. The referenced GBSL catalog test is 13 dB at 0.5 MPa; do not apply PT noise figures to G variants.

    ASC30015G: separate two-female-G1/2-port inline control; needs male fittings. Follow P/A and the check/throttle symbol. 0.05–0.95 MPa, −20–70 °C and 40 µm-or-finer filtered air; SCJ path 0.15–0.95 MPa before lower limits. Rated flow does not guarantee cylinder speed.

    GAFR30015SG,GAFR40015SG: separate upstream G1/2 filter/regulator, 40 µm element, PC bowl, differential/manual drain, bracket and round gauge, no reverse-flow valve. Inlet ≤1 MPa, setting 0.15–0.9 MPa, −5–70 °C non-freezing. Respect IN/OUT, flow/pressure loss, condensate, bowl environment and all downstream limits; not a cylinder fitting or vacuum regulator.

    US98A/UE95A examples: blue 100 m coils, not supplied cut lengths. Rated 1 MPa at 23 °C, temperature derating required: US98A −20–70 °C, UE95A −40–70 °C. Match OD/ID, bend radius, routing and flow; thinner low-pressure tubes are not equivalent. Size flow for the SCJ annular area and actual load; no achieved speed is guaranteed.

    A 16 × 11 mm reference tube needs separately specified 16 mm endpoint fittings and controls; the listed 12 mm sockets do not form that connection.

    SCJ has two working ports and equal-diameter rods. Size flow using its annular pressure area, actual load, adjusted travel, piping losses and exhaust backpressure; a general bore-based chart does not guarantee SCJ speed.

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