This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X40S, 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 SU63-100 Standard Cylinder SU100X40S is a double-acting profile-type standard cylinder with a Ø100mm bore and 40mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU100X40S, which matches its bore, stroke, force and mounting.
The AirTAC SU100X40S is a discontinued double-acting profile-type cylinder with a 100mm bore and 40mm stroke. Built for heavy thrust, it delivers 3927 N push and 3681 N pull at 0.5 MPa, peaking at 801 kgf. The direct replacement is the SAU100X40S, matching the 1/2 inch port, M20x1.5 rod thread, 29mm cushions, and SC-series mounts exactly.
This compact extruded aluminium body is shorter than an ISO 15552 equivalent. The -S magnet worked with legacy CS1-B/DS1-B switches, but the SAU upgrade uses CMSG/DMSG/EMSG sensors and adds a SAUF valve-integrated option.
| Model | Airtac SU63-100 Standard Cylinder SU100X40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X40S |
| Bore size | Ø100 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU100X40S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAU100X40S 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). |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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.
Shoves loaded pallets onto a transfer line, leveraging the 1/2 inch port for rapid exhaust and the compact profile body to fit tight conveyor frames.
Ejects dense molded parts from heavy machinery, relying on the 29mm adjustable air cushions to decelerate the 25mm rod smoothly at stroke end.
To replace this discontinued SU100X40S, order the SAU100X40S direct equivalent, verifying the 1/2 inch port, PT/G/NPT thread choice, and SC-series mounting hardware. Because the -S magnet is present, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors on the SAU. Sizing both ways: a neighbouring 80mm bore yields 2513 N push at 0.5 MPa, while this 100mm bore provides 5497 N at 0.7 MPa. The cylinder cannot hold a load without live air; the 29mm cushions only decelerate, so add an external rod lock for vertical holding. For high-cycle automation, consider the SAUF variant with its built-in 4M solenoid valve.
Replacement checklist
Yes, the AirTAC SU100X40S is discontinued. The direct replacement is the SAU100X40S. It shares the same 100mm bore, 40mm stroke, 1/2 inch port, output force, and SC-series mounting accessories, fitting the exact same application.
It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and a maximum theoretical force of 801 kgf at 1.0 MPa. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to current CMSG/DMSG/EMSG sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X40S replacement — usually within 7-8 hours.