This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X450-30, 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 Airtac SUJ Adjustable Cylinder SUJ100X450-30 is a double-acting profile-type standard cylinder with a Ø100mm bore and 450mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X450-30, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X450-30 is a double-acting double-rod profile cylinder with an adjustable stroke, discontinued and replaced by the direct replacement SAUJ100X450-30. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable 420-450 mm extend window from the 450 mm nominal maximum. The stop sets the end position and is not a load lock.
The compact profile barrel is shorter than an ISO 15552 cylinder of the same bore. The SAUJ successor retains the FA/LB mounting but upgrades sensing to current CMSG/DMSG/EMSG switches; this non-magnetic SUJ SKU cannot take a sensor. With a 450 mm stroke, use external guides to prevent rod bending. A plain cylinder drifts on air loss, so fit an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X450-30 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X450-30 |
| Bore size | Ø100 mm |
| Stroke | 450 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 SAUJ100X450-30 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 SAUJ100X450-30 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. |
| ×450 | 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 precise on-site extend tuning down to 420 mm for pressing assemblies to exact depths without re-engineering fixed stops.
Trimming the extend stroke by up to 30 mm accommodates varying package sizes on a line without swapping the cylinder.
Field-adjusting the 450 mm extend window lets operators fine-tune pallet halt positions dynamically as layouts change.
To replace the discontinued SUJ100X450-30, order the direct replacement SAUJ100X450-30, which matches the 100 mm bore, 450 mm stroke, 30 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 30 mm adjust window if you need on-site extend tuning between 420-450 mm. Because this SKU lacks a magnet, it cannot take a switch; the SAUJ uses CMSG/DMSG/EMSG sensors. At 450 mm stroke, add external guides to manage side-load and rod-bending. The stop screw sets end position but is not a lock; use an external rod lock for load holding.
Replacement checklist
Yes, the SUJ100X450-30 is discontinued. The direct replacement is the SAUJ100X450-30, matching the 100 mm bore, 450 mm stroke, 30 mm 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 external stop screw provides a 30 mm trim window, making the usable extend stroke 420-450 mm. 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 SAUJ100X450-30 replacement — usually within 7-8 hours.