This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X600SH, 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 SU40X600SH is a double-acting profile-type standard cylinder with a Ø40mm bore and 600mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X600SH, which matches its bore, stroke, force and mounting.
The AirTAC SU40X600SH is a discontinued double-acting profile cylinder with a 40mm bore and 600mm stroke. The direct replacement is the SAU40X600SH, matching the 1/4" port, M12x1.25 rod thread, and SC-series mounting.
Upgrading to the SAU retains the compact extruded aluminum body and 21mm cushions but moves the -S magnet to modern CMSG/DMSG/EMSG switches (the SU used legacy CS1-B/DS1-B). The -H Viton seal allows 0-150C heat. Note the SAUF adds a built-in valve the SU lacked. At 600mm, prevent rod bending with an external guide; a plain cylinder drifts without air, so use a rod lock for holding.
| Model | Airtac SU32~50 Standard Cylinder SU40X600SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X600SH |
| Bore size | Ø40 mm |
| Stroke | 600 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 SAU40X600SH carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAU40X600SH 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). |
|---|---|
| 40 | Bore size in mm. |
| ×600 | 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.
Pushes packages across a 600mm conveyor lane using a safe 377N working load, with an external guide preventing rod bending on the extended stroke.
Handles part ejection in 0-150C environments using the -H Viton seal, replacing the discontinued SU while retaining the 1/4" port and 628N push force.
To replace this discontinued SU, order the SAU40X600SH direct: it preserves the 40mm bore, 600mm stroke, 1/4" port, and SC-series mounting. If your -S magnet used legacy CS1-B/DS1-B switches, you must upgrade to CMSG/DMSG/EMSG sensors on the SAU. The -H Viton seal supports 0-150C. Because the 600mm stroke risks rod bending, use an external guide to prevent side loads. The cushion only decelerates; for load holding during air loss, install an external rod lock or pilot-operated check valve. The SAUF variant offers a built-in 4M valve if needed.
Replacement checklist
Yes, the SU40X600SH is discontinued. The direct replacement is the SAU40X600SH, which matches the 40mm bore, 600mm stroke, 628N push force at 0.5MPa, 1/4" port, and SC-series mounting. You only need to upgrade your -S magnet sensors from legacy CS1-B/DS1-B to the current CMSG/DMSG/EMSG switches.
The 40mm bore has a 1/4" port and M12x1.25 rod thread. It provides 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, 1130N push at 0.9MPa, and a theoretical max of 128kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X600SH replacement — usually within 7-8 hours.