This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X250-40, 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 SUJ100X250-40
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X250-40 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 SAUJ100X250-40, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke250 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X250-40
- 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 SUJ100X250-40
The AirTAC SUJ100X250-40 is a discontinued double-acting double-rod profile cylinder with a 250 mm nominal stroke and a 40 mm adjustable extend window. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 210-250 mm end position. It features a 1/2" port, M20x1.5 rod thread, and 29 mm adjustable cushions. The direct replacement is the SAUJ100X250-40, sharing the same bore, stroke, force, port, and FA/LB mounting.
Because this SKU lacks a magnet, it cannot take a magnetic switch. The SAUJ upgrade uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. The stop screw sets the end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ100X250-40 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X250-40 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X250-40 |
| 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 SAUJ100X250-40 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 SAUJ100X250-40 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 SUJ100X250-40
| 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 SUJ100X250-40 Is Used
Press Fit Tuning
Final insertion depth needs on-site adjustment without swapping cylinders. The 40 mm stop screw window lets operators dial in the exact 210-250 mm extend position for delicate bushing seating.
Variable Carton Flaps
Packaging lines handling varying box heights benefit from field stroke trimming. The external stop screw quickly sets the extend endpoint to match flap dimensions without reprogramming the motion controller.
Adjustable Forming Stops
Metal forming equipment requires precise mechanical end positions for different batch lengths. This cylinder provides a 40 mm adjustment window to set the 250 mm maximum stroke down to 210 mm on-site.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X250-40 with the SAUJ100X250-40
To replace the discontinued SUJ100X250-40, order the direct replacement SAUJ100X250-40, which preserves the 100 mm bore, 250 mm stroke, 1/2" port, and FA/LB mounting. Choose the -40 adjust window if your assembly requires field-tuning the extend stroke between 210 and 250 mm, which often beats installing a fixed-stroke cylinder with an external stop. This non-magnetic SKU cannot accept sensors; if position feedback is needed, select an SAUJ with the -S suffix and use CMSG/DMSG/EMSG switches. For strokes of 300 mm or longer, verify your side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X250-40
- ✓ 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 SUJ100X250-40 FAQ
Yes, the SUJ100X250-40 is discontinued. The direct replacement is the SAUJ100X250-40, which matches the 100 mm bore, 250 mm stroke, 1/2" port, and FA/LB mounting. The SAUJ also supports current CMSG/DMSG/EMSG sensors and the SAUF built-in-valve variant.
The external stop screw window is 40 mm, allowing you to trim the 250 mm maximum extend stroke down to 210 mm on-site. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X250-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X250-40 replacement — usually within 7-8 hours.