This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X75-40, 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 SUJ100X75-40 is a double-acting profile-type standard cylinder with a Ø100mm bore and 75mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X75-40, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X75-40 is a double-acting double-rod profile cylinder that lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 35-75 mm range from its 75 mm nominal maximum. Because it is discontinued, the direct replacement is the SAUJ100X75-40, matching the 100 mm bore, 1/2" port, and force. This SKU lacks a magnet, so it cannot take a switch.
The SAUJ upgrade adopts current CMSG/DMSG/EMSG sensors over the legacy CS1-B/DS1-B, and the external stop sets end position but is not a load lock.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X75-40 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X75-40 |
| Bore size | Ø100 mm |
| Stroke | 75 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 SAUJ100X75-40 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 SAUJ100X75-40 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. |
| ×75 | 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.
Dialing in the exact extend stop on-site is ideal when a pressing operation needs precise 35-75 mm depth tuning without swapping cylinders.
Conveyor diverters requiring different product lengths benefit from trimming the extend stroke by up to 40 mm to change the push distance quickly.
Packaging lines use the external stop screw to set varying end positions for carton sizes, ensuring accurate positioning without reprogramming.
To replace this discontinued SUJ100X75-40, specify the SAUJ100X75-40 direct, keeping the 75 mm nominal stroke and 40 mm adjust window. The SAUJ retains FA and LB mounting, but since this non-magnetic SKU cannot take a switch, the SAUJ upgrade path enables CMSG/DMSG/EMSG sensors if needed. For strokes >=300 mm, verify side-load limits. Because the stop screw only sets end position, add an external rod lock for held loads.
Replacement checklist
Yes, the SUJ100X75-40 is discontinued. The direct replacement is the SAUJ100X75-40, which matches the 100 mm bore, 75 mm stroke, 40 mm adjust window, 1/2" port, and mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw provides a 40 mm adjust window, shortening the extend stroke from the 75 mm nominal maximum down to 35 mm. 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 SAUJ100X75-40 replacement — usually within 7-8 hours.