Specifications: SU50X962FBHG — original SU order model; this order is supplied as SAU.
SU Replacement and Supplied Product
SU is discontinued. Orders placed for this SU listing are supplied as SAU. Keep the SU order identity and use the supplied SAU drawing and accessories for installation.
Product Catalog
Original SU catalog
Download Airtac Product Catalog (PDF)
Supplied SAU catalog
Download Airtac Product Catalog (PDF)
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
SU is discontinued; orders for SU are supplied as SAU. Read the replacement guide:
SU Discontinuation and SAU Replacement Guide
Model Code Explained
| Code |
Meaning |
| SU |
Original discontinued SU series; this listing is supplied as SAU |
| 50 |
50 mm original bore selection |
| X |
Separator before nominal stroke |
| 962 |
962 mm original nominal stroke |
| No magnet suffix |
Without built-in magnet |
| FB |
Rear flange mounting |
| H |
Fluororubber (FKM) |
| G |
G1/4 working-port selection |
Ordered Identity and Supplied Configuration
| Parameter |
Value |
| Original order model |
SU50X962FBHG |
| Supplied series |
SAU |
| Supplied configuration |
50 mm bore; 962 mm nominal stroke; without magnet; Rear flange mounting; Fluororubber (FKM); G1/4 |
Specifications below describe supplied SAU. Historical SU values are comparison only. Shared part codes do not guarantee interchangeability of mounting dimensions, screw engagement or load ratings.
Historical SU / Supplied SAU Comparison
Historical SU without TC → supplied SAU (2022 reference): body width B 62 → 62 mm; mounting thread K M6×1.0 → M6×1.0; mounting depth KA 9.5 → 16 mm. Check the supplied drawing and screw length. Legacy SU sensor references do not establish compatibility with supplied SAU sensors.
Technical Specifications — Supplied SAU
| Parameter |
Value |
| Original order model |
SU50X962FBHG |
| Action |
Single-rod double-acting cylinder |
| Bore |
50 mm |
| Nominal stroke |
962 mm; Special stroke; confirm order and delivery conditions |
| Magnetic piston |
Without magnet |
| Mounting selection |
Rear flange mounting |
| Seal option |
Fluororubber (FKM) |
| Port thread |
G1/4; two working air ports |
| Working medium |
Compressed air filtered to 40 µm or finer |
| 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 |
| Temperature |
General table: −20 to 70 °C. The complete H assembly range is not separately tabulated; confirm the actual ordered temperature specification |
| Piston speed |
30–800 mm/s; application depends on load, controls, piping and cushioning |
| Nominal-stroke tolerance |
+1.5 / 0 mm |
| Cushioning |
Adjustable pneumatic cushioning; 21 mm nominal cushion reference |
| Rod diameter / end thread |
20 mm / M16×1.5 |
| Sensor installation |
Detection requires an S magnetic piston; adding a sensor does not add a magnet |
| Cylinder reference weight |
5652 g; supplied SAU catalogue reference, not historical SU mass or measured shipping weight |
Supplied SAU catalogue reference mass: 851.2 g non-stroke mass + 962 mm × 4.99 g/mm, rounded to the nearest gram. The H seal mass difference is not independently specified. Mounting, rod-end and other accessory masses and packaging are excluded; this is not a measured shipping weight. Actual supplied mass prevails.
Features and Operation
Airtac enterprise-standard single-rod double-acting cylinder. The compact profiled bidirectional piston seal retains oil. The aluminium barrel has no external tie rods, provides corrosion resistance and includes direct sensor grooves; magnetic sensing requires the S piston option. Adjust the pneumatic cushioning and select mounting for the moving load and end positions. The catalogue describes a shorter same-bore SAU body than ISO15552 cylinders; this is a length comparison, not an ISO conformity or universal interchangeability claim. The catalogue lists specially selected high-temperature sealing material for 150 °C service. Confirm the actual H-cylinder specification and duty; this does not establish a complete H temperature range or raise any attached component rating.
External and Mounting Dimensions
Dimensions are in mm except threads and angles. Drawing references do not include every external accessory or establish complete installation clearance. Check the actual rod position, selected mounts, joints, fittings and sensors.
| Parameter |
Value |
| Illustrated basic length: A + stroke |
1112 mm = 150 + 962 |
| Body reference span: AC + stroke |
1055 mm = 93 + 962 |
| Derived basic extended length: A + 2 × stroke |
2074 mm = 150 + 2 × 962; excludes external attachments |
| Body width × height |
62 × 62 mm (□B) |
| Rod and cover dimensions (mm) |
AB = 57; AD = 27.5; AE = 27.5; D = 20; DA = 42; E = M16×1.5; EA = 32; F = 23; FA = 8 |
| Mounting dimensions (mm) |
M = 38; MA = 15; N = 61.5; H = 17; K = M6×1.0; KA = 16; KB = 47 |
| Port geometry |
P = G1/4; PA = 17; PB = 8.5 mm |
| Parameter |
Value |
| Selected accessory |
F-SC50FA; Rear flange mounting |
| Material |
Aluminium alloy |
| Accessory dimensions (mm) |
BB = 10; BC = 65; BD = 47; BE = 104; BF = 86; BP = 9; I = 23; S = 62; T = 47 |
| A + stroke |
1112 mm = 150 + 962 |
| C + stroke |
1055 mm = 93 + 962 |
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Mounting and Rod-End Accessories
| Complete part code |
Application and dimensional reference |
| F-SC50LB |
Axial foot mounting; Carbon steel |
| F-SC50FA |
Front flange mounting; Aluminium alloy |
| F-SC50FA |
Rear flange mounting; Aluminium alloy |
| F-SC50CA |
Single rear clevis mounting; Ductile cast iron |
| F-SC50CB |
Double rear clevis mounting; Ductile cast iron |
| F-M16X150I |
I-type rod-end joint; Carbon steel; 312 g reference. Drawing: NC = 16; ND = 64; NE = 82; NF = 32; NG = 23; NH = M16×1.5; NM = 16 |
| F-M16X150Y |
Y-type rod-end joint; Carbon steel; 367.5 g reference. Drawing: NA = 32; NC = 16; ND = 64; NP = 32; NQ = 80; NM = 16; NH = M16×1.5; PA = 39; PB = 32.8 |
| F-M16X150F |
Floating joint; Carbon steel; 543 g reference. Drawing: MA = 90; MB = 27; MC = 10; MD = 41; ME = 44.5; MF = 19; MG = 8; MH = 17; MI/MJ = M16×1.5; MK = 7° |
| F-M16X150U |
Spherical rod-end joint; Carbon steel; 204 g reference. Drawing: PA = 15; PB = 40; PC = 16; PD = 28; PE = 64; PF = 84; PG = M16×1.5; PH = 15°; PI = 27; PJ = 22; PK = 21 |
Select LB, front FA, rear FB, CA or CB as alternatives for the required mounting. Front and rear flange positions share the FA part code. Listed options do not imply included supply or quantity; confirm package contents and actual load capacity.
Rod ends use M16×1.5. MK is floating-joint angular compensation; PH is spherical-joint angle. Reference joint masses are not included in cylinder weight. Material categories do not identify every subcomponent or finish. Check alignment and mating threads; these M10-and-larger joints are outside the separate M6-and-smaller radial-offset note.
Numbered drawing parts are not complete service ordering codes. Confirm the full model, seal, production revision and genuine replacement number before ordering seal, guide, cover or adjustment-mechanism service parts.
Force and Application
| Parameter |
Value |
| Ideal extending / retracting pressure area |
1963.50 / 1649.34 mm² |
| Calculated extending / retracting force at 0.5 MPa |
981.75 / 824.67 N |
| Calculation boundary |
Force (N) = pressure area (mm²) × pressure (MPa), before friction, exhaust backpressure and dynamic losses; not a guaranteed payload. |
| General load-ratio guidance |
≤0.7 static/low-speed; ≤0.5 at 50–500 mm/s; ≤0.3 above 500 mm/s within the 800 mm/s cylinder limit. These are selection guides, not payload guarantees. |
Installation and Maintenance
Align the load and avoid side force, impact and rod-surface damage. Use independent guidance where needed. Guard moving parts; isolate air and electricity, vent pressure and secure loads before service or adjustment. Provide safe responses to supply loss and restart.
Keep piping clean and remove moisture and contamination. Protect against dust, droplets, oil and weld spatter; avoid freezing. Factory lubrication normally permits oil-free use; if oil is added, continue additive-free ISO VG32 turbine oil. Mist guide: ≤25 mg/m³ and 0.5–5 drops/1000 L; size the lubricator for actual flow.
Test without load, then increase load gradually. Start speed controls closed and open slowly; meter-out commonly stabilizes motion. Adjust cushioning for actual moving mass and speed without forcing the screw. The 21 mm nominal cushion reference is not additional travel or guaranteed effective deceleration distance for every short stroke.
Check mechanical stops, valve flow and exhaust backpressure. High kinetic energy may require separately engineered deceleration. Allow space for the extending rod and attached load.
PT1/4 piping-thread tightening reference: 6–8 N·m for the specified mating connection. This is not a G/NPT thread, sensor fastener or speed-control adjustment-cap torque. Match tube dimensions and threads; keep sealing debris out of air ports.
Internal Components — SAU Reference
This illustrated basic SAU material list is a reference, not the actual H/N seal bill of materials. Confirm production materials for the selected seal and structure; item numbers do not establish orderable service codes.
| Family drawing item |
Basic material reference |
| 1 — Rod nut |
Carbon steel |
| 2 — Piston rod |
S45C hard-chromed ground bar |
| 3 — Front-cover O-ring |
TPU |
| 4 — Guide bushing |
Wear-resistant material |
| 5 — Front cover |
Aluminium alloy |
| 6 — Cushion O-ring |
NBR |
| 7 — Cushion seal |
TPU |
| 8 — Barrel |
Aluminium alloy |
| 9 — Piston |
Aluminium alloy |
| 10 — Piston-rod O-ring |
NBR |
| 11 — Piston O-ring |
NBR |
| 12 — Magnet |
Not fitted to this nonmagnetic configuration |
| 13 — Wear ring |
Wear-resistant material |
| 14 — Socket-head screw |
Carbon steel |
| 15 — Rear cover |
Aluminium alloy |
| 16 — Support screw cap |
Carbon steel |
Series Ordering Options
| Parameter |
Value |
| Series |
Single-rod double-acting cylinder |
| Bore sizes |
32, 40, 50, 63, 80, 100 mm |
| Magnet |
No suffix: no magnet; S: magnetic piston, sensor separately selected |
| Seal materials |
No suffix: TPU; H: fluororubber; N: NBR. Current option: Fluororubber (FKM) |
| Mounting |
Basic; Axial foot mounting (LB), Front flange mounting (FA), Rear flange mounting (FB), Single rear clevis mounting (CA), Double rear clevis mounting (CB) |
| Thread options |
PT, G and NPT; match each ordered port and fitting thread |
| Standard strokes |
25, 50, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, 1000 mm |
| Nominal-stroke limits |
Catalogue maximum 1200 mm; allowable 1800 mm |
Maximum and allowable stroke are distinct catalogue limits; unlisted strokes require order and delivery confirmation. Above 1500 mm, the catalogue tolerance table gives no additional band.
Connection and Tube-Side Options
| Separately selected component |
Complete ordering codes; tube dimensions as labelled |
| GPC straight |
6 mm OD: GPC602,GPC602D; 8 mm OD: GPC802,GPC802D; 10 mm OD: GPC1002,GPC1002D; 12 mm OD: GPC1202,GPC1202D; 4 mm OD: GPC402-M,GPC402D-M |
| GPL elbow |
6 mm OD: GPL602,GPL602D; 8 mm OD: GPL802,GPL802D; 10 mm OD: GPL1002,GPL1002D; 12 mm OD: GPL1202,GPL1202D; 4 mm OD: GPL402-M,GPL402D-M |
| GPLL extended elbow |
4 mm OD: GPLL402,GPLL402D; 6 mm OD: GPLL602,GPLL602D; 8 mm OD: GPLL802,GPLL802D; 10 mm OD: GPLL1002,GPLL1002D; 12 mm OD: GPLL1202,GPLL1202D |
| GPEB branch tee |
4 mm OD: GPEB402,GPEB402D; 6 mm OD: GPEB602,GPEB602D; 8 mm OD: GPEB802,GPEB802D; 10 mm OD: GPEB1002,GPEB1002D; 12 mm OD: GPEB1202,GPEB1202D |
| GPED run tee |
4 mm OD: GPED402,GPED402D; 6 mm OD: GPED602,GPED602D; 8 mm OD: GPED802,GPED802D; 10 mm OD: GPED1002,GPED1002D; 12 mm OD: GPED1202,GPED1202D |
| GPYB Y fitting |
4 mm OD: GPYB402,GPYB402D; 6 mm OD: GPYB602,GPYB602D; 8 mm OD: GPYB802,GPYB802D; 10 mm OD: GPYB1002,GPYB1002D; 12 mm OD: GPYB1202,GPYB1202D |
| GPH banjo elbow |
6 mm OD: GPH602,GPH602D; 8 mm OD: GPH802,GPH802D; 10 mm OD: GPH1002,GPH1002D |
| GPHF female-branch banjo |
6 mm OD: GPHF602,GPHF602D; 8 mm OD: GPHF802,GPHF802D; 10 mm OD: GPHF1002,GPHF1002D |
| GPHW twin banjo |
6 mm OD: GPHW602,GPHW602D; 8 mm OD: GPHW802,GPHW802D; 10 mm OD: GPHW1002,GPHW1002D |
| GPZB cross fitting |
6 mm OD: GPZB602,GPZB602D; 8 mm OD: GPZB802,GPZB802D; 10 mm OD: GPZB1002,GPZB1002D |
| GPKD reducing distributor |
main 8 / branch 6 mm OD: GPKD8-602,GPKD8-602D |
| GBPC metal straight |
4 mm OD: GBPC402; 6 mm OD: GBPC602; 8 mm OD: GBPC802; 10 mm OD: GBPC1002; 12 mm OD: GBPC1202 |
| GBKC compression fitting |
6 × 4 mm OD × ID: GBKC0604-02; 8 × 5 mm OD × ID: GBKC0805-02; 8 × 5.5 or 6 mm OD × ID: GBKC0806-02; 10 × 6.5 mm OD × ID: GBKC1065-02; 10 × 7.5 or 8 mm OD × ID: GBKC1075-02; 12 × 8 mm OD × ID: GBKC1208-02; 12 × 9 or 10 mm OD × ID: GBKC1209-02 |
| GBB male–male adapter |
other end male G1/8: GBB0102; other end male G1/4: GBB0202; other end male G3/8: GBB0203; other end male G1/2: GBB0204 |
| GBD male–female adapter |
other end female G1/8: GBD0102 |
| GBZ unused auxiliary plug |
GBZ02 |
| GBSL valve-exhaust silencer |
GBSL02 |
| GBSLM miniature valve-exhaust silencer |
GBSLM02 |
| GBESL adjustable valve-exhaust silencer |
GBESL02 |
| GPSS universal flow control |
6 mm OD: GPSS602A,GPSS602AD,GPSS602B,GPSS602BD; 8 mm OD: GPSS802A,GPSS802AD,GPSS802B,GPSS802BD; 10 mm OD: GPSS1002A,GPSS1002AD,GPSS1002B,GPSS1002BD |
| GPTL push-lock flow control |
6 mm OD: GPTL602A,GPTL602AD,GPTL602B,GPTL602BD; 8 mm OD: GPTL802A,GPTL802AD,GPTL802B,GPTL802BD; 10 mm OD: GPTL1002A,GPTL1002AD,GPTL1002B,GPTL1002BD |
| GPSA tube-to-tube flow control |
4 mm OD: GPSA4,GPSA4D; 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 OD: PPA6; 8 mm OD: PPA8; 10 mm OD: PPA10; 12 mm OD: PPA12 |
| ASC separate inline flow control |
female G1/4: ASC20008G |
| GAFR upstream filter/regulator |
female G1/4: GAFR20008SG,GAFR30008SG |
| US98A/UE95A PU tubing |
4 × 2.5 mm OD × ID: US98A040025100MBU,UE95A040025100MBU; 6 × 4 mm OD × ID: US98A060040100MBU,UE95A060040100MBU; 8 × 5 mm OD × ID: US98A080050100MBU,UE95A080050100MBU; 10 × 6.5 mm OD × ID: US98A100065100MBU,UE95A100065100MBU; 12 × 8 mm OD × ID: US98A120080100MBU,UE95A120080100MBU |
| PSA tube-to-tube flow control |
4 mm OD: PSA4,PSA4D,PSA4-S,PSA4D-S; 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 |
Separate options; no included-kit or stock promise. Connect both SAU50 working ports using G1/4 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 M16×1.5 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 G1/4; 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; SAU path 0.15–0.9 MPa. GBKC/GBB/GBD/GBZ: 0–1 MPa, 0–150 °C; SAU 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. GBKC0806-02 accepts 8 × 5.5 or 8 × 6 mm; 8 × 5 mm needs GBKC0805-02. 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 1/4-port variants: adjustment reference: 0.16 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.
ASC20008G: separate two-female-G1/4-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; SAU path 0.15–0.95 MPa before lower limits. Rated flow does not guarantee cylinder speed.
GAFR20008SG,GAFR30008SG: separate upstream G1/4 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. Tube sizes are component examples; calculate actual SAU flow independently.
Separate Directional-Valve and Tube Examples
4A G: single control 4A21008G; double control 4A22008G. 4V G: single control 4V21008BG; double control 4V22008BG. 5V PT: single control 5V21008B050; double control 5V22008B050. All listed B versions use DC24V. 4V has DIN entry and internal pilot; 5V has 0.5 m leads (050) and internal pilot. 4A has single/double pneumatic control, external pilot supply and no coil. 4A configurations 20008: single control has one PT1/8 pilot port, double has two; confirm pilot threads on G versions.
20008 (G: 4A/4V; PT: 5V): P 1/4, A/B 1/4, R/S 1/8. Port dimensions use the PT/G thread assigned above; choose each endpoint independently. These separately piped valve examples are not direct cylinder fittings or included parts. Operating range: 0.15–0.8 MPa, −20 to 70 °C, 40 µm filtration. Confirm flow, load, pilot supply and exhaust backpressure; apply all lower component limits.
UN54D flame-resistant tubing: 1 MPa at 23 °C, -20 to 70 °C; UN54D080050100MBU: 8 × 5 mm, minimum bend radius 18 mm; UN54D100065100MBU: 10 × 6.5 mm, minimum bend radius 20 mm. All are blue 100 m coils; derate pressure above 23 °C. UN54D flame-resistant does not mean fireproof. Match exact OD, ID, tube compatibility and bend radius; PA6/PA12 sizes 8 × 5 and 10 × 6.5 mm are not established here.
M5 and 4M NAMUR references have their own valve connections and are not direct SAU mounting accessories. No unverified direct adapter or complete kit is specified.
SAU has two working air ports. Select circuit flow using its full-bore extension area and annular retraction area, actual load, travel, piping losses and exhaust backpressure. A general bore-based selection chart does not guarantee an achieved SAU speed or establish a directly mounted valve assembly.
