This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X1000STC, 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 Airtac SU32~50 Standard Cylinder SU40X1000STC is a double-acting profile-type standard cylinder with a Ø40mm bore and 1000mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X1000STC, which matches its bore, stroke, force and mounting.
The AirTAC SU40X1000STC is a discontinued double-acting profile-type cylinder with a 40mm bore and 1000mm stroke, delivering 628 N push and 528 N pull at 0.5 MPa. The direct replacement is the SAU40X1000STC, matching the 1/4" port, M12x1.25 rod thread, and SC-series TC mounting dimensions exactly.
The SAU upgrade switches the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches, and introduces the SAUF built-in 4M solenoid valve variant the SU line lacked. At 1000mm, this long stroke requires an external guide to prevent rod bending under side loads.
| Model | Airtac SU32~50 Standard Cylinder SU40X1000STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X1000STC |
| Bore size | Ø40 mm |
| Stroke | 1000 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 SAU40X1000STC 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 SAU40X1000STC 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. |
| ×1000 | 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 wide conveyor belt using the 1000mm stroke, relying on an external guide to prevent rod bending during the extended travel.
Utilizes the SC-series TC trunnion mount to pivot during long 1000mm linear transfers, accommodating angular misalignment in the linkage.
To replace this discontinued SU40X1000STC, order the SAU40X1000STC keeping the 40mm bore, 1000mm stroke, 1/4" port, and TC mounting. Because this SKU includes the -S magnet, note that your legacy CS1-B/DS1-B switches must change to the SAU's CMSG/DMSG/EMSG sensor family. If your application needs true load holding on air loss, a plain cylinder drifts since the 21mm adjustable cushion only decelerates; add an external rod lock or pilot-operated check valve. For the 1000mm stroke, support the load with an external linear guide to avoid rod bending. If you need more force, the 50mm bore yields 982 N push at 0.5 MPa; if less is acceptable, the 32mm bore provides 402 N. The SAUF variant offers a built-in valve if you need self-switching.
Replacement checklist
Yes, the SU40X1000STC is discontinued. The direct replacement is the AirTAC SAU40X1000STC. It matches the 40mm bore, 1000mm stroke, 628 N push force at 0.5 MPa, 1/4" port, and TC mounting. You must upgrade your sensors because the SAU uses CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B type.
The 40mm bore has a 1/4" air port. 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.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X1000STC replacement — usually within 7-8 hours.