This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X100-100SH, 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 SUJ Adjustable Cylinder SUJ40X100-100SH is a double-acting profile-type standard cylinder with a Ø40mm bore and 100mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X100-100SH, which matches its bore, stroke, force and mounting.
The AirTAC SUJ40X100-100SH is a double-acting double-rod profile cylinder with a 100 mm adjustable stroke window. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, making the nominal 100 mm stroke the maximum. This SUJ series is discontinued; the direct replacement is the SAUJ40X100-100SH, which retains the same bore, force, and FA/LB mounting.
The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads. The -H option specifies Viton/FKM seals for 0 to 150 C high-temp environments. The -S magnet enables legacy CS1-B/DS1-B switches, whereas the SAUJ replacement upgrades to current CMSG/DMSG/EMSG sensors.
| Model | Airtac SUJ Adjustable Cylinder SUJ40X100-100SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X100-100SH |
| Bore size | Ø40 mm |
| Stroke | 100 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 SAUJ40X100-100SH 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 SAUJ40X100-100SH 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. |
| ×100 | 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.
On-the-fly extend stroke tuning for material cutting operations where product lengths frequently change and the full 100 mm adjust window is needed.
Sheet metal forming presses requiring field stroke tuning to accommodate varying die heights without swapping out the entire actuator.
Packaging sortation lines that need precise extend limits set on-site to handle different carton sizes on the fly.
To replace the discontinued SUJ40X100-100SH, order the direct replacement SAUJ40X100-100SH, which matches the 40 mm bore, 100 mm stroke, 1/4" port, and FA/LB mounting. The 100 mm adjust window allows trimming the extend stroke down to 0 mm on-site, which is ideal when a fixed SAU plus external stop would consume too much space. Because this model includes the -S magnet, you must upgrade your switches from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors. For strokes of 300 mm or longer, verify your side-load limits to prevent guide wear.
Replacement checklist
Yes, the SUJ40X100-100SH is discontinued. You only need to upgrade the -S magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG.
The external stop screw provides a 100 mm adjust window, allowing you to trim the extend stroke by up to 100 mm on-site. The stop sets end position only; it is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X100-100SH replacement — usually within 7-8 hours.