This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X1000, 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 SU40X1000 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 SAU40X1000, which matches its bore, stroke, force and mounting.
The AirTAC SU40X1000 is a discontinued double-acting profile-type cylinder with a 40mm bore and 1000mm stroke. It delivers 628N push and 528N pull at 0.5MPa through a 1/4" port. AirTAC replaced this legacy unit with the SAU40X1000, a direct upgrade retaining the exact bore, stroke, output force, and SC-series mounting footprint.
The SAU replacement introduces current CMSG/DMSG/EMSG sensors, superseding the older CS1-B/DS1-B switches, and offers a new SAUF built-in-valve option. Note this non-magnetic SKU cannot accept a sensor.
| Model | Airtac SU32~50 Standard Cylinder SU40X1000 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X1000 |
| 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 SAU40X1000 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 SAU40X1000 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 1-meter conveyor lane using the 628N push force, requiring external guides to prevent rod bending over the extended travel.
Actuates a distant machine safety guard over a 1000mm span, benefiting from the compact profile body and adjustable end cushions.
To replace this SU40X1000, order the SAU40X1000 direct equivalent, verifying your 1/4" port thread (PT/G/NPT) and SC-series mounting (LB/FA/FB/CA/CB). Because this 1000mm stroke approaches the 1200mm standard limit, use an external guide to prevent rod bending under side loads. If stepping down, a 32mm bore yields 402N push at 0.5MPa; stepping up to 50mm provides 982N. This non-magnetic SKU cannot take a sensor; if you need position detection, specify an SAU-S model (which uses CMSG/DMSG/EMSG switches). For load holding on air loss, add an external rod lock or pilot-operated check valve, as cushions only decelerate. The SAUF variant adds a built-in 4M valve if pneumatics need simplifying.
Replacement checklist
Yes, the SU40X1000 is discontinued. The direct replacement is the AirTAC SAU40X1000. It matches the 40mm bore, 1000mm stroke, 628N push force at 0.5MPa, 1/4" port, and SC-series mounting accessories, fitting the same application.
At 0.5MPa it pushes 628N and pulls 528N; at 0.7MPa it pushes 879N, with a theoretical max of 128kgf at 1.0MPa. This specific non-magnetic SKU cannot accept a sensor. The SAU replacement uses CMSG/DMSG/EMSG switches, whereas the legacy SU used CS1-B/DS1-B.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X1000 replacement — usually within 7-8 hours.