This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X500-30, 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 SUJ Adjustable Cylinder SUJ100X500-30 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 SAUJ100X500-30, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X500-30 is a double-acting double-rod adjustable-stroke profile cylinder, now discontinued. It features a 100mm bore, 1/2" port, and a nominal 500mm stroke that you can trim by up to 30mm on-site via an external stop screw, yielding a usable extend stroke of 470-500mm. The stop screw sets the end position but is not a load lock. This SKU has no magnet and cannot take a sensor.
The direct replacement is the SAUJ100X500-30, matching the bore, stroke, force, and SC-series FA/LB mounting. The SAUJ upgrades sensing to current CMSG/DMSG/EMSG sensors (this legacy SUJ used CS1-B/DS1-B) and offers the SAUF built-in-valve variant. Note that a plain cylinder drifts on air loss; use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X500-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X500-30 |
| 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 SAUJ100X500-30 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 SAUJ100X500-30 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.
Adjusts the extend stroke on-site by up to 30mm to tune the push distance for parts of varying widths without swapping the entire cylinder.
Sets a precise 470-500mm end position to deflect products into specific lanes, allowing rapid field changes when conveyor layouts shift.
Trims the stroke window to halt pallets of differing depths accurately, ensuring the stop screw contacts the load at the correct point.
To replace the discontinued SUJ100X500-30, select the direct replacement SAUJ100X500-30, which preserves the 100mm bore, 500mm stroke, 30mm adjust window, 1/2" port, and FA/LB mounting. Choose the 30mm adjust window if you need to trim the extend stroke on-site; the stop screw sets end position but is not a lock. Because this SKU lacks a magnet, it cannot take a sensor; the SAUJ requires CMSG/DMSG/EMSG sensors (replacing legacy CS1-B/DS1-B). For the 500mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
Yes, the SUJ100X500-30 is discontinued. The direct replacement is the SAUJ100X500-30, matching the 100mm bore, 500mm stroke, 30mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B.
The 100mm bore double-acting double-rod cylinder pushes 3927N and pulls 3681N at 0.5MPa, pushing 5497N at 0.7MPa and 7068N at 0.9MPa (max 801 kgf at 1.0MPa). The external stop screw provides a 30mm adjust window, shortening the 500mm extend stroke down to 470mm. The stop sets end position but is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X500-30 replacement — usually within 7-8 hours.