This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU100X40STC, 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 SU100X40STC 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 SAU100X40STC, which matches its bore, stroke, force and mounting.
The AirTAC SU100X40STC is a discontinued double-acting profile-type cylinder with a 100mm bore and 40mm stroke. It delivers 3927N push force at 0.5MPa via a 1/2" port. AirTAC replaced this with the SAU100X40STC, a direct upgrade retaining the exact body, stroke, force, and SC-series mounting.
This legacy unit features a TC mount and a magnet for CS1-B/DS1-B switches; the SAU replacement switches to CMSG/DMSG/EMSG sensors and adds an optional SAUF built-in valve. Note that air cushions only decelerate; use an external rod lock to hold loads.
| Model | Airtac SU63-100 Standard Cylinder SU100X40STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU100X40STC |
| 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 SAU100X40STC 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 SAU100X40STC 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.
Provides robust push force to eject dense metal stampings from a press bed, utilizing the 100mm bore's 3927N at 0.5MPa.
Handles lateral redirection of heavy loaded pallets on a conveyor line using the TC mount for secure mid-span pivoting.
To replace this discontinued SU100X40STC, order the SAU100X40STC. Verify your 1/2" port, M20x1.5 rod thread, and TC mounting interface (an SC-series accessory). Because this SKU includes a magnet (-S), note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. If dropping to an 80mm bore saves space, force falls to 2513N at 0.5MPa; stepping up is unnecessary as 100mm already yields 3927N. The SAUF variant offers a built-in 4M valve the SU lacked. Remember, cushions only decelerate; add a pilot-operated check valve for load holding.
Replacement checklist
Yes, the SU100X40STC is discontinued. The direct replacement is the SAU100X40STC. It shares the same 100mm bore, 40mm stroke, 1/2" port, output force, and SC-series TC mounting, so it fits your existing application directly.
At 0.5MPa it provides 3927N push and 3681N pull; 5497N push at 0.7MPa; 7068N at 0.9MPa; and a max of 801kgf at 1.0MPa. Because this SKU has a magnet (-S), note that the legacy CS1-B/DS1-B switches are replaced by CMSG/DMSG/EMSG sensors on the SAU model.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU100X40STC replacement — usually within 7-8 hours.