This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X980SH, 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 SU40X980SH is a double-acting profile-type standard cylinder with a Ø40mm bore and 980mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X980SH, which matches its bore, stroke, force and mounting.
The AirTAC SU40X980SH is a discontinued double-acting profile-type cylinder with a 40mm bore and 980mm stroke. Built for high-temperature environments up to 150C using Viton H seals, it delivers 628 N push force at 0.5 MPa through a 1/4 inch port. AirTAC replaced this unit with the SAU40X980SH, a direct replacement retaining the exact bore, stroke, force, and SC-series mounting footprint.
The SAU upgrade modernizes the sensor groove to accept current CMSG, DMSG, or EMSG switches, whereas this legacy SU used CS1-B/DS1-B reed switches. The new SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series never offered.
| Model | Airtac SU32~50 Standard Cylinder SU40X980SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X980SH |
| Bore size | Ø40 mm |
| Stroke | 980 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 SAU40X980SH 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 SAU40X980SH 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. |
| ×980 | 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.
Drives 32 kg vertical loads in 150C thermal chambers using Viton H seals, providing 628 N push at 0.5 MPa without degrading.
Extends parts across wide conveyor gaps; the 21mm adjustable air cushions safely decelerate the payload at stroke ends.
Pushes packaging rows to downstream lanes, relying on the compact aluminum profile body to save machine footprint.
To replace the SU40X980SH, order the SAU40X980SH direct equivalent, verifying your 1/4 inch port thread (PT, G, or NPT) and SC-series mounting hardware (LB, FA, FB, CA, CB, or TC). Because this unit has an S magnet, note that your legacy CS1-B/DS1-B switches will not fit the SAU groove; you must upgrade to CMSG, DMSG, or EMSG sensors. If you need to adjust force, the neighboring 32mm bore yields 402 N push at 0.5 MPa, while the 50mm bore provides 982 N. For any load requiring static holding on air loss, note that the air cushion only decelerates the piston at stroke end and does not brake; install an external rod lock or pilot-operated check valve. Finally, at 980mm, this long stroke is susceptible to rod bending under lateral stress—always use an external guide to prevent side-load damage.
Replacement checklist
Yes, the AirTAC SU40X980SH is discontinued. The direct replacement is the SAU40X980SH. It shares the identical 40mm bore, 980mm stroke, 1/4 inch port, and SC-series mounting, so it drops into the same application. You only need to update your sensors, as the SAU uses CMSG/DMSG/EMSG switches instead of the older CS1-B/DS1-B.
This double-acting cylinder has a 1/4 inch port and a 16mm rod. It generates 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, 1130 N push at 0.9 MPa, and a theoretical maximum of 128 kgf at 1.0 MPa. Operating speed ranges from 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X980SH replacement — usually within 7-8 hours.