This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X150SH, 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 SU40X150SH is a double-acting profile-type standard cylinder with a Ø40mm bore and 150mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X150SH, which matches its bore, stroke, force and mounting.
The AirTAC SU40X150SH is a discontinued double-acting profile-type cylinder with a 40mm bore and 150mm stroke. It delivers 628N push force at 0.5MPa and features a high-temperature Viton H seal rated for 0-150C. AirTAC replaced this legacy unit with the SAU40X150SH, a direct replacement retaining the exact 1/4 port, M12x1.25 rod thread, and SC-series mounting compatibility.
Because of its extruded aluminum body, this cylinder is more compact than an ISO 15552 unit of the same bore. The built-in -S magnet functions with legacy CS1-B/DS1-B switches, whereas the SAU successor uses modern CMSG/DMSG/EMSG sensors and introduces a SAUF valve-integrated option.
| Model | Airtac SU32~50 Standard Cylinder SU40X150SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X150SH |
| Bore size | Ø40 mm |
| Stroke | 150 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 SAU40X150SH 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 SAU40X150SH 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. |
| ×150 | 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.
Actuates routing gates on ovens or heat-treat lines using the Viton H seal to withstand ambient thermal radiation while pushing 628N packages.
Lifts or halts 32kg tote bins at sorting nodes, requiring an external pilot-operated check valve to prevent drift during valve centering.
To replace this discontinued SU40X150SH, order the SAU40X150SH direct equivalent, verifying the 1/4 port, M12x1.25 rod thread, PT/G/NPT thread standard, and your SC-series mounting brackets. The -H Viton high-temperature seal (0-150C) must be specified on the new unit. Because the -S magnet is present, note that your legacy CS1-B/DS1-B switches must be upgraded to CMSG/DMSG/EMSG sensors on the SAU. If you need integrated flow control, the SAU line offers a SAUF variant with a built-in 4M solenoid valve. For bidirectional sizing, the neighboring 32mm bore yields 402N push at 0.5MPa, while the 50mm bore yields 982N. Remember that a standard cylinder drifts without live air—the cushions only decelerate—so fit an external rod lock or pilot-operated check valve for secure load holding.
Replacement checklist
Yes, the SU40X150SH is discontinued. The direct replacement is the AirTAC SAU40X150SH. It matches the 40mm bore, 150mm stroke, 628N force, 1/4 port, and SC-series mounting accessories, but requires upgrading legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors.
The 40mm bore features a 1/4 port. At 0.5MPa it provides 628N push and 528N pull force. At 0.7MPa push is 879N, at 0.9MPa it is 1130N, and the theoretical maximum is 128kgf at 1.0MPa. The -H option specifies a Viton seal for 0-150C high-temperature environments.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X150SH replacement — usually within 7-8 hours.