This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X250-20S, 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 SUJ100X250-20S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X250-20S 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 SAUJ100X250-20S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke250 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X250-20S
- 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 SUJ100X250-20S
The AirTAC SUJ100X250-20S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 230 to 250 mm extension out of the 250 mm nominal maximum. It features a 25 mm rod, M20x1.5 rod thread, adjustable 29 mm cushions, and a 1/2" port.
This SUJ model is discontinued; the direct replacement is the SAUJ100X250-20S, sharing the same bore, stroke, force, port, and FA/LB mounting. The SAUJ upgrade transitions from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches. Note the stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X250-20S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X250-20S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X250-20S |
| 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 SAUJ100X250-20S 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 SAUJ100X250-20S 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 SUJ100X250-20S
| 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 SUJ100X250-20S Is Used
Press Fit Tuning
Allows operators to dial in the exact 230 to 250 mm extend position on-site for pressing bearings without machining hard stops.
Variable Length Diverter
Adjusts the extend stroke to deflect different package sizes on a conveyor line, accommodating format changes quickly.
Adjustable End Stop
Sets a precise physical end position for palletizing or stacking tasks where the nominal 250 mm stroke needs minor trimming.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X250-20S with the SAUJ100X250-20S
To replace the discontinued SUJ100X250-20S, order the direct replacement SAUJ100X250-20S, which preserves the 100 mm bore, 250 mm stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. Select the 20 mm adjust window if you need field tuning of the extend stroke; the stop screw sets the end position but is not a lock, so add an external rod lock for held loads. Because this unit has the -S magnet, swap the legacy CS1-B/DS1-B switches for current CMSG/DMSG/EMSG sensors. For stroke lengths of 300 mm or more, verify side-load limits to prevent excessive guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X250-20S
- ✓ 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 SUJ100X250-20S FAQ
Yes, the SUJ100X250-20S is discontinued. The direct replacement is the SAUJ100X250-20S, which matches the 100 mm bore, 250 mm stroke, 20 mm adjust window, 1/2" port, and FA/LB mounting. You must upgrade the legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches.
The 20 mm adjust window trims the extend stroke on-site from the 250 mm maximum down to 230 mm.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X250-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X250-20S replacement — usually within 7-8 hours.