This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X155S, 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 SU50X155S
The AirTAC Airtac SU32~50 Standard Cylinder SU50X155S is a double-acting profile-type standard cylinder with a Ø50mm bore and 155mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X155S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke155 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X155S
- 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 SU50X155S
The AirTAC SU50X155S is a discontinued double-acting profile-type cylinder with a 50mm bore and 155mm stroke. It delivers 982 N push and 825 N pull at 0.5 MPa, operating at 30-800 mm/s via a 1/4" port. The direct replacement is the SAU50X155S, matching the bore, stroke, output force, and SC-series mounting.
This 155mm stroke is nonstandard, meaning the SAU replacement must be ordered to this exact length. The original -S magnet worked with legacy CS1-B/DS1-B switches, but the SAU upgrade uses current CMSG/DMSG/EMSG sensors.
Airtac SU32~50 Standard Cylinder SU50X155S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X155S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X155S |
| Bore size | Ø50 mm |
| Stroke | 155 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 SAU50X155S 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 SAU50X155S 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 SU50X155S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×155 | 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 SU50X155S Is Used
Clamping Mechanisms
Ideal for securing mid-weight workpieces during machining, utilizing the 982 N push force at 0.5 MPa for rigid holding.
Package Diverting
Provides reliable actuation for routing goods on a production line, with the 155mm stroke offering precise travel distance.
Replacing the Airtac SU32~50 Standard Cylinder SU50X155S with the SAU50X155S
To replace the SU50X155S, order the SAU50X155S, confirming the 1/4" port, M16x1.5 rod thread, and SC-series mounting. Because the 155mm stroke is nonstandard, specify it exactly when ordering the SAU. The -S magnet means you must switch from legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors. For higher force, the 63mm bore offers 1559 N push at 0.5 MPa; for lighter loads, the 40mm bore gives 628 N. Since the 155mm stroke is under 300mm, rod bending is minimal, but for side loads add a guide. A plain cylinder drifts without air; use an external rod lock for load holding. The SAUF variant adds a built-in valve the SU lacked.
Replacement checklist
- ✓ Same bore / stroke → SAU50X155S
- ✓ 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 SU50X155S FAQ
Yes, the AirTAC SU50X155S is discontinued. The direct replacement is the SAU50X155S. It offers the same 50mm bore, 155mm stroke, 1/4" port, output force, and SC-series mounting compatibility. You simply order the SAU equivalent.
The force ratings are: push 982 N and pull 825 N at 0.5 MPa, push 1374 N at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa. Because your SU model has the -S magnet, note that the SAU replacement requires upgrading from the legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X155S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X155S replacement — usually within 7-8 hours.