This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X75H, 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.

The AirTAC SU32~50 Standard Cylinder SU50X75H is a double-acting profile-type standard cylinder with a Ø50mm bore and 75mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X75H, which matches its bore, stroke, force and mounting.
The AirTAC SU50X75H is a discontinued double-acting profile-type cylinder with a 50mm bore and 75mm stroke. It delivers 982 N push and 825 N pull at 0.5 MPa through a 1/4" port. The Viton H seal allows 0-150 C operation. The direct replacement is the SAU50X75H, matching the bore, stroke, force, port, and SC-series mounting.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade also adds the SAUF valve-integrated option. The cushion only decelerates; it does not hold the load without live air.
| Model | Airtac SU32~50 Standard Cylinder SU50X75H |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X75H |
| Bore size | Ø50 mm |
| Stroke | 75 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 SAU50X75H carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X75H produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×75 | 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.
Uses the 75mm stroke and Viton H seal to eject parts from 150 C hot stamping dies, relying on the 982 N push force at 0.5 MPa.
Diverts packages on a high-temperature conveyor line where the compact profile body and 825 N pull force fit tight transfer gaps.
To replace this SU50X75H, order the SAU50X75H. Confirm the 1/4" port, M16x1.5 rod thread, and SC-series mounting. This non-magnetic SKU cannot take a switch; if you need sensing, the SAU uses CMSG/DMSG/EMSG sensors. For higher flow, the 63mm bore offers 1559 N push at 0.5 MPa; for tighter spaces, the 40mm bore gives 628 N. Since the stroke is under 300mm, rod bending is minimal, but for load holding on air loss, add an external rod lock or pilot-operated check valve, as the cushion only decelerates. The SAUF variant offers a built-in valve if needed.
Replacement checklist
Yes, the SU50X75H is discontinued. The direct replacement is the SAU50X75H. It matches the 50mm bore, 75mm stroke, 1/4" port, and SC-series mounting. The SAU body also uses current CMSG/DMSG/EMSG sensors, though this specific non-magnetic H-seal SKU cannot accept a switch.
It pushes 982 N and pulls 825 N at 0.5 MPa, pushes 1374 N at 0.7 MPa, and reaches a theoretical max of 200 kgf at 1.0 MPa. The Viton H seal supports 0-150 C. It operates at 30-800 mm/s with a 21mm adjustable cushion at both ends.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X75H replacement — usually within 7-8 hours.