This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X40H, 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 SU63-100 Standard Cylinder SU100X40H 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 SAU100X40H, which matches its bore, stroke, force and mounting.
The AirTAC SU100X40H is a discontinued double-acting profile-type cylinder with a 100mm bore and 40mm stroke. Engineered for high-temperature environments, its Viton H seals allow operation from 0 to 150 C, while the extruded aluminum barrel keeps the unit more compact than a standard ISO 15552 cylinder of the same bore. It delivers a robust 3927 N push force at 0.5 MPa, utilizing a 1/2" port and a 25mm piston rod.
Because this SU model is end-of-life, AirTAC now supplies the SAU100X40H as the direct replacement. The SAU maintains the exact same bore, stroke, output force, 1/2" port, and SC-series mounting accessories. Note that this specific SU variant lacks a magnet and cannot support sensing.
| Model | Airtac SU63-100 Standard Cylinder SU100X40H |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X40H |
| 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 SAU100X40H 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 SAU100X40H 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.
Handles heavy part ejection from molding or pressing equipment where ambient heat requires Viton H seals rated for 0-150 C.
Generates 3927 N of clamping force at 0.5 MPa to secure heavy metal components during machining or welding operations.
Acts as a robust stopper block in high-mass conveyor lines, absorbing kinetic energy using its 29mm adjustable air cushions.
To replace the discontinued SU100X40H, order the SAU100X40H, which matches the 100mm bore, 40mm stroke, 1/2" port, M20x1.5 rod thread, and SC-series mounting. Because this SKU has no -S magnet, it cannot accept a sensor; if you require position detection on the new SAU, you must select an -S version and migrate to the current CMSG/DMSG/EMSG switch family (the legacy CS1-B/DS1-B switches are obsolete). You can also explore the SAUF variant, which integrates a 4M solenoid valve directly onto the body—a self-switching option the SU line never offered.
When sizing, verify the load in both directions: this 100mm bore yields 3927 N push and 3681 N pull at 0.5 MPa, scaling to 5497 N push at 0.7 MPa. If your application requires the cylinder to hold a load vertically without continuous air pressure, note that the air cushions only decelerate the piston near the stroke ends and do not act as a brake; you will need an external rod lock or a pilot-operated check valve to prevent drift. If your force requirements are lower, dropping to an 80mm bore (2513 N push at 0.5 MPa) might save space, while staying within the 0-150 C Viton H temperature range.
Replacement checklist
Yes, the SU100X40H is discontinued. The direct replacement is the AirTAC SAU100X40H. It offers identical dimensions, 100mm bore, 40mm stroke, 1/2" port, and SC-series mounting compatibility. The SAU also introduces the option for a built-in 4M valve (SAUF variant) which the SU line lacked.
At 0.5 MPa, it provides 3927 N push and 3681 N pull force, increasing to 5497 N push at 0.7 MPa, with a theoretical maximum of 801 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept any sensors; if detection is needed on the SAU replacement, you must order an -S model and use CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X40H replacement — usually within 7-8 hours.