This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X250-75, 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 SUJ100X250-75
The AirTAC SUJ Adjustable Cylinder SUJ100X250-75 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 SAUJ100X250-75, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke250 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X250-75
- 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 SUJ100X250-75
The AirTAC SUJ100X250-75 is a 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 175-250 mm stroke from the 250 mm nominal maximum. 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.
This SUJ unit is discontinued and the direct replacement is the SAUJ100X250-75, retaining the same bore, stroke, force, port, and SC-series FA/LB mounting. The SAUJ upgrades to current CMSG/DMSG/EMSG sensors, whereas this legacy model used CS1-B/DS1-B switches. This non-magnet SKU cannot take a switch.
Airtac SUJ Adjustable Cylinder SUJ100X250-75 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X250-75 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X250-75 |
| 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 SAUJ100X250-75 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 SAUJ100X250-75 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 SUJ100X250-75
| 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 SUJ100X250-75 Is Used
Variable-Length Ejector
Tune the extend stroke on-site by up to 75 mm to eject parts of varying widths from a press without re-mounting the cylinder.
Adjustable Diverter Arm
Set the exact reach of a diverter on a packaging line to handle different box sizes, using the stop screw to define the end position.
Variable-Height Stopper
Act as a physical stop for pallets, trimming the 250 mm stroke to the precise load length required for the routing lane.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X250-75 with the SAUJ100X250-75
To replace the discontinued SUJ100X250-75, order the direct replacement SAUJ100X250-75, which matches the 100 mm bore, 250 mm stroke, 75 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 75 mm 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 switch; the SAUJ with a -S suffix uses CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X250-75
- ✓ 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 SUJ100X250-75 FAQ
Yes, the SUJ100X250-75 is discontinued. The direct replacement is the SAUJ100X250-75, which keeps the same 100 mm bore, 250 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.
The external stop screw provides a 75 mm adjust window, allowing you to trim the extend stroke from the 250 mm maximum down to 175 mm on-site.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X250-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X250-75 replacement — usually within 7-8 hours.