This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X500-100, 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 SUJ100X500-100 is a double-acting profile-type standard cylinder with a Ø100mm bore and 500mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X500-100, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X500-100 is a double-acting, double-rod profile cylinder with an adjustable extend stroke. An external stop screw allows you to trim the extend stroke by up to 100 mm on-site, yielding a usable stroke range of 400-500 mm (the 500 mm nominal is the maximum). It features a 1/2 inch port, an M20x1.5 rod thread, and 29 mm adjustable air cushions at each end.
This SUJ model is discontinued and the direct replacement is the SAUJ100X500-100, which preserves the bore, stroke, force, 1/2 port, and FA/LB mounting. The SAUJ upgrade transitions to current CMSG/DMSG/EMSG sensors, as this legacy unit used CS1-B/DS1-B switches. Note that the stop screw sets the end position but is not a load lock; drift occurs on air loss, requiring an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X500-100 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X500-100 |
| Bore size | Ø100 mm |
| Stroke | 500 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 SAUJ100X500-100 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 SAUJ100X500-100 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. |
| ×500 | 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.
Allows operators to dial in the exact 400-500 mm extend position on-site for pressing bearings without machining hard stops.
Adjusts the extend stroke to deflect different package sizes on a conveyor line, providing flexible routing.
Sets precise mechanical end-positions for pallet stops where the required extend distance varies by load configuration.
To replace this discontinued SUJ100X500-100, order the direct replacement SAUJ100X500-100. The 100 mm adjust window is ideal if your end-position needs field tuning between 400 and 500 mm. Mounting uses FA or LB brackets (SC-series compatible only). Because this SKU lacks a magnet (-S), it cannot take a sensor; the SAUJ replacement with an -S suffix uses CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. At 500 mm stroke, prevent rod bending by supporting the load with external guides to minimize side-load forces.
Replacement checklist
Yes, the SUJ100X500-100 is discontinued. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The external stop screw provides a -100 mm adjust window, meaning you can shorten the extend stroke from 500 mm down to 400 mm on-site. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X500-100 replacement — usually within 7-8 hours.