This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X450-10, 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 SUJ100X450-10 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 SAUJ100X450-10, which matches its bore, stroke, force and mounting.
The AirTAC SUJ100X450-10 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 10 mm on-site, giving a usable 440-450 mm extension out of the 450 mm nominal maximum. As a discontinued model, it is superseded by the direct replacement SAUJ100X450-10, which matches the 100 mm bore, 1/2" port, M20x1.5 rod thread, and FA/LB mounting. The stop screw sets the end position but is not a load lock.
The SAUJ upgrade retains these forces while moving to current CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B switches used on the SUJ. Because this SKU lacks a magnet, it cannot take a magnetic switch. Note that a plain cylinder drifts on air loss; use an external rod lock for held loads.
| Model | Airtac SUJ Adjustable Cylinder SUJ100X450-10 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X450-10 |
| 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 SAUJ100X450-10 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 SAUJ100X450-10 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.
Trimming the extend stroke by up to 10 mm on-site allows precise bottoming force for pressing bearings without machining hard stops.
Field-tuning the 440-450 mm stroke lets operators dial in the exact actuator reach for moving varied package sizes on a packaging line.
The external stop screw provides a quick way to adjust the end position for different pallet depths without reprogramming the motion controller.
To replace the discontinued SUJ100X450-10, order the direct replacement SAUJ100X450-10, ensuring you migrate from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches (this non-magnetic SKU cannot take a switch anyway). The 10 mm adjust window is ideal for fine-tuning the 440-450 mm extend endpoint, which beats adding a fixed SAU plus an external stop. Utilize FA or LB mounting (SC-series compatible). For the 450 mm stroke, support the rod against bending and use external guides to manage side loads. The stop screw sets end position, not a lock; add a pilot-operated check valve or external rod lock for load holding.
Replacement checklist
Yes, the SUJ100X450-10 is discontinued. The direct replacement is the SAUJ100X450-10, which shares the same 100 mm bore, 450 mm stroke, 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 10 mm adjust window shortens the extend stroke on-site from the 450 mm maximum down to 440 mm. The 1/2" port cylinder operates at 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X450-10 replacement — usually within 7-8 hours.