This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X250-50, 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 SUJ100X250-50
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X250-50 is a double-acting profile-type standard cylinder with a Ø100mm bore and 250mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X250-50, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke250 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X250-50
- 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 SUJ100X250-50
The AirTAC SUJ100X250-50 is a double-acting, double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 200-250 mm extension. It is DISCONTINUED; the direct replacement is the SAUJ100X250-50, which matches the 100 mm bore, 250 mm nominal stroke, 1/2" port, and SC-series FA/LB mounting.
The stop screw sets the end position but is not a load lock; without live air the piston drifts, so use an external rod lock for held loads. Because this SKU lacks a magnet (-S), it cannot take a switch. The SAUJ upgrade adopts current CMSG/DMSG/EMSG sensors, replacing the legacy CS1-B/DS1-B, and offers a shorter profile barrel than an ISO 15552 unit.
Airtac SUJ Adjustable Cylinder SUJ100X250-50 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X250-50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X250-50 |
| Bore size | Ø100 mm |
| Stroke | 250 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 SAUJ100X250-50 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 SAUJ100X250-50 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 SUJ100X250-50
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×250 | 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 SUJ100X250-50 Is Used
Press Fit Tuning
Adjust the extend stroke on-site to set precise pressing depths for bearings without swapping the entire cylinder.
Variable Length Diverter
Trim the actuator extension to deflect varying package sizes on a conveyor line, ensuring accurate routing.
Adjustable Stops
Fine-tune the physical end-stop position for pallets of different heights in a compact profile body.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X250-50 with the SAUJ100X250-50
To replace the discontinued SUJ100X250-50, order the SAUJ100X250-50 direct; it preserves the 1/2" port, M20x1.5 rod thread, 29 mm cushions, and FA/LB mounting. Choose the 50 mm adjust window if you need to trim the extend stroke on-site; the stop sets end position and is not a lock. For stroke lengths of 300 mm or more, verify side-load limits. This non-magnet model cannot accept sensors, whereas the SAUJ supports CMSG/DMSG/EMSG switches.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X250-50
- ✓ 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 SUJ100X250-50 FAQ
Yes, the SUJ100X250-50 is discontinued. The direct replacement is the SAUJ100X250-50, which matches the 100 mm bore, 250 mm stroke, 1/2" port, and FA/LB mounting.
It pushes 3927 N and pulls 3681 N at 0.5 MPa, pushing 5497 N at 0.7 MPa and 7068 N at 0.9 MPa, with a theoretical max of 801 kgf. The external stop screw provides a 50 mm adjust window, shortening the extend stroke to a usable 200-250 mm.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X250-50
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X250-50 replacement — usually within 7-8 hours.