This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X250-40S, 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 SUJ100X250-40S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X250-40S 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 SAUJ100X250-40S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke250 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X250-40S
- 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 SUJ100X250-40S
The AirTAC SUJ100X250-40S is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 210-250 mm extend out of the 250 mm nominal maximum. The 1/2" port and 29 mm adjustable cushions manage the kinetic energy of this large-bore unit.
This SUJ model is discontinued; the direct replacement is the SAUJ100X250-40S, retaining the same bore, stroke, force, port, and FA/LB mounting. Note the -S suffix denotes a piston magnet for legacy CS1-B/DS1-B sensors, which must be upgraded to current CMSG/DMSG/EMSG switches on the SAUJ. 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 SUJ100X250-40S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X250-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X250-40S |
| 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 SAUJ100X250-40S 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 SAUJ100X250-40S 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 SUJ100X250-40S
| 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 SUJ100X250-40S Is Used
Press Fit Tuning
Allows operators to dial in the exact 210-250 mm extend position for seating bearings without machining custom spacers.
Variable Format Diverter
Adjusts the extend stop on-site to accommodate different package widths on a 100 mm bore sorting line.
Pallet Positioning Stop
Provides a robust 3927 N hard stop at 0.5 MPa that can be retracted and fine-tuned for varying pallet depths.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X250-40S with the SAUJ100X250-40S
To replace the discontinued SUJ100X250-40S, specify the SAUJ100X250-40S directly—it is a direct swap for bore, stroke, 1/2" port, and FA/LB mounts. Select the -40 mm adjust window if your fixture requires precise 210-250 mm extend tuning; the stop screw sets the end position but does not lock the load. Retain your FA or LB mounting, and because this unit has the -S magnet, plan to replace the legacy CS1-B/DS1-B sensors with CMSG/DMSG/EMSG switches. For this 250 mm stroke, side-load is minimal, but for any stroke over 300 mm, add a guide to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X250-40S
- ✓ 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 SUJ100X250-40S FAQ
Yes, the SUJ100X250-40S is discontinued. The direct replacement is the SAUJ100X250-40S, which matches the 100 mm bore, 250 mm stroke, 1/2" port, and FA/LB mounting. You must upgrade the -S piston magnet sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw provides a 40 mm adjustment window, allowing you to shorten the extend stroke from the 250 mm maximum 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 SAUJ100X250-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X250-40S replacement — usually within 7-8 hours.