This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X450-75S, 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.
Airtac SUJ Adjustable Cylinder SUJ100X450-75S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X450-75S 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 SAUJ100X450-75S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke450 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X450-75S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SUJ Adjustable Cylinder SUJ100X450-75S
The AirTAC SUJ100X450-75S is a discontinued double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 375-450 mm extend out of the 450 mm nominal maximum. It features a 1/2" port, a 25 mm rod, M20x1.5 rod thread, and 29 mm adjustable air cushions. Because it is discontinued, the direct replacement is the SAUJ100X450-75S, retaining the same force, port, and FA/LB mounting.
The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock for held loads. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches, whereas the SAUJ upgrade uses current CMSG/DMSG/EMSG sensors. With a 450 mm stroke, external guides are recommended to mitigate rod bending and side loads.
Airtac SUJ Adjustable Cylinder SUJ100X450-75S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X450-75S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X450-75S |
| 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 SAUJ100X450-75S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAUJ100X450-75S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUJ Adjustable Cylinder SUJ100X450-75S
| 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.
Where the Airtac SUJ Adjustable Cylinder SUJ100X450-75S Is Used
Variable-Length Ejector Stroke
Tuning the extend stroke on-site by up to 75 mm allows an ejection mechanism to adapt to varying product depths without swapping the entire cylinder.
Adjustable Transfer Pusher
A transfer pusher can field-trim its 450 mm extend down to 375 mm to accommodate different pallet sizes or conveyor lane widths on the fly.
Variable-Depth Palletizing Stop
A pallet stopper needing precise end-position adjustment uses the external screw to dial in the exact stopping point for mixed-load heights.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X450-75S with the SAUJ100X450-75S
To replace the discontinued SUJ100X450-75S, order the direct replacement SAUJ100X450-75S, which matches the 100 mm bore, 450 mm nominal stroke, 75 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 75 mm adjust window if your mechanism requires field-tuning the extend stroke down to 375 mm. For the -S magnet option, note the sensor change from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG on the SAUJ. Because the stroke is 450 mm (>=300 mm), ensure external guides are used to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X450-75S
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SUJ Adjustable Cylinder SUJ100X450-75S FAQ
Yes, the SUJ100X450-75S is discontinued. The direct replacement is the SAUJ100X450-75S, which matches the 100 mm bore, 450 mm stroke, 75 mm adjust window, 1/2" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw window is 75 mm, allowing the 450 mm extend stroke to be shortened on-site to a minimum of 375 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X450-75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X450-75S replacement — usually within 7-8 hours.