This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X70S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.
Airtac SU32~50 Standard Cylinder SU50X70S
The AirTAC SU32~50 Standard Cylinder SU50X70S is a double-acting profile-type standard cylinder with a Ø50mm bore and 70mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X70S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke70 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X70S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU32~50 Standard Cylinder SU50X70S
The AirTAC SU50X70S is a discontinued double-acting profile-type cylinder with a 50mm bore and 70mm stroke. It delivers 982N push force at 0.5MPa via a 1/4 inch port. AirTAC replaced this unit with the SAU50X70S, a direct upgrade retaining the exact bore, stroke, force, port size, and SC-series mounting compatibility.
Because the SU50X70S includes a piston magnet (-S), it originally worked with legacy CS1-B/DS1-B switches; the SAU replacement transitions to current CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve, an option the SU line lacked.
Airtac SU32~50 Standard Cylinder SU50X70S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X70S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X70S |
| Bore size | Ø50 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU50X70S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X70S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU32~50 Standard Cylinder SU50X70S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Where the Airtac SU32~50 Standard Cylinder SU50X70S Is Used
Clamping Mechanisms
Secures medium workpieces on machining fixtures using its 982N push force at 0.5MPa, ensuring rigid holding during milling or drilling operations.
Package Diverting
Actuates routing gates on 50kg payload conveyor lines, utilizing the 70mm stroke to push cartons smoothly onto secondary packaging tracks.
Replacing the Airtac SU32~50 Standard Cylinder SU50X70S with the SAU50X70S
To replace the SU50X70S, order the SAU50X70S. Confirm your 1/4 inch port thread (PT, G, or NPT), M16x1.5 rod-end thread, and SC-series mounting (LB, FA, FB, CA, CB, or TC). Because this SKU has the -S magnet, note the sensor family change: legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG sensors. If your application needs a higher load, the neighbouring 63mm bore yields 1559N push at 0.5MPa; if lower, the 40mm bore yields 628N. The air cushion only decelerates the piston near stroke end; for load holding on air loss, install an external rod lock or pilot-operated check valve. The SAUF valve-integrated variant can simplify actuation if you require self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU50X70S
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU32~50 Standard Cylinder SU50X70S FAQ
Yes, the SU50X70S is discontinued. The direct replacement is the AirTAC SAU50X70S. It shares the identical 50mm bore, 70mm stroke, 982N force, 1/4 inch port, and SC-series mounting, so it bolts right in. The only change for buyers with the -S magnet is that legacy CS1-B/DS1-B switches are upgraded to current CMSG/DMSG/EMSG sensors.
At 0.5MPa, the 50mm bore provides 982N push and 825N pull force. Push force rises to 1374N at 0.7MPa and 1767N at 0.9MPa, with a theoretical max of 200kgf at 1.0MPa. Operating pressure spans 0.15-1.0MPa, speed is 30-800mm/s, and temperature ranges from -20 to +70C (up to 150C with Viton H seals).
Request a Quote for the SAU50X70S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X70S replacement — usually within 7-8 hours.