This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X600SN, 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 SU40X600SN 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 SAU40X600SN, which matches its bore, stroke, force and mounting.
The AirTAC SU40X600SN is a discontinued double-acting profile-type cylinder with a 40mm bore and 600mm stroke. Delivering 628N push force at 0.5MPa, it features an extruded aluminum barrel and adjustable air cushions. AirTAC replaced this legacy unit with the SAU40X600SN, a direct replacement retaining the exact bore, stroke, 1/4" port, and SC-series mounting.
This NBR-sealed model operates from -20 to +70C. The built-in magnet worked with legacy CS1-B/DS1-B switches, but the SAU upgrade uses modern CMSG/DMSG/EMSG sensors. Note that standard cylinders drift without live air; use an external rod lock for holding.
| Model | Airtac SU32~50 Standard Cylinder SU40X600SN |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X600SN |
| 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 SAU40X600SN 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 SAU40X600SN 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 transfer lines using the 600mm stroke, with external guides preventing rod deflection under lateral inertia.
Raises lightweight totes with a 32kg safe vertical lifting capacity at 0.5MPa, requiring a check valve to prevent drifting on air loss.
Ejects machined parts from fixtures, leveraging the shorter profile body to save space compared to standard ISO 15552 units.
To replace the SU40X600SN, order the SAU40X600SN direct equivalent, verifying the 40mm bore, 600mm stroke, 1/4" port, M12x1.25 rod thread, and SC-series mounting. Because this unit has a -S magnet, prepare to upgrade your sensors from the old CS1-B/DS1-B to the SAU-compatible CMSG/DMSG/EMSG family. The -N NBR seal is retained. For sizing alternatives, a 32mm bore yields 402N push at 0.5MPa, while a 50mm bore provides 982N. Given the 600mm stroke, use external guides to prevent rod bending and side-load damage. The cylinder cannot hold loads without air; add a pilot-operated check valve. If valve integration is needed, the SAU line offers the SAUF variant.
Replacement checklist
Yes, the AirTAC SU40X600SN is discontinued. The direct replacement is the SAU40X600SN. It matches the 40mm bore, 600mm stroke, 1/4" port, output force, and SC-series mounting, but requires upgrading the legacy CS1-B/DS1-B sensors to the current CMSG/DMSG/EMSG switches.
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. Speed ranges from 30-800mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X600SN replacement — usually within 7-8 hours.