This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X500-30S, 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 SUJ100X500-30S 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 SAUJ100X500-30S, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X500-30S is a double-acting, double-rod adjustable-stroke profile cylinder. This discontinued unit uses an external stop screw to trim the extend stroke by up to 30 mm on-site, yielding a usable 470-500 mm stroke from the 500 mm maximum. It features a 1/2" port, an M20x1.5 rod thread, and 29 mm adjustable cushions.
The direct replacement is the SAUJ100X500-30S, retaining the same force, bore, and FA/LB mounting. The SAUJ upgrades sensing to current CMSG/DMSG/EMSG switches from the legacy CS1-B/DS1-B used here. The stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X500-30S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X500-30S |
| 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 SAUJ100X500-30S 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 SAUJ100X500-30S 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 470-500 mm extend position for pressing bearings without remachining hard stops.
Adjusts the extend stroke on-site to accommodate different package sizes on a 100 mm bore diverter arm.
Fine-tunes the extend endpoint by up to 30 mm to align with varying pallet depths before final locking.
To replace the discontinued SUJ100X500-30S, specify the SAUJ100X500-30S, which is a direct match for bore, stroke, 1/2" port, and FA/LB mounting. The -30 mm adjust window is ideal for fine-tuning the extend endpoint without machining external stops. Because the -S suffix denotes a piston magnet, upgrade your legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG switches. For this 500 mm stroke, use external guides to prevent rod bending and manage side loads. Remember that the stop screw sets position but does not lock the load on air loss.
Replacement checklist
Yes, the SUJ100X500-30S is discontinued. The direct replacement is the SAUJ100X500-30S, which matches the 100 mm bore, 500 mm stroke, 30 mm adjust window, 1/2" port, and FA/LB mounting. You must upgrade the legacy CS1-B/DS1-B sensors to the current CMSG/DMSG/EMSG switches.
The external stop screw window is 30 mm, allowing you to shorten the extend stroke from 500 mm down to 470 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 SAUJ100X500-30S replacement — usually within 7-8 hours.