This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ100X275-40S, 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 SUJ100X275-40S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ100X275-40S is a double-acting profile-type standard cylinder with a Ø100mm bore and 275mm stroke, 1/2" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ100X275-40S, which matches its bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke275 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAUJ100X275-40S
- 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 SUJ100X275-40S
The AirTAC SUJ100X275-40S is a discontinued 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 235-275 mm extension from the 275 mm nominal maximum. It features a 1/2" port, a 25 mm rod, and 29 mm adjustable cushions.
This unit is replaced direct by the SAUJ100X275-40S, retaining the exact bore, stroke, force, port, and FA/LB mounting. The upgrade shifts 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 SUJ100X275-40S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ100X275-40S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ100X275-40S |
| Bore size | Ø100 mm |
| Stroke | 275 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 SAUJ100X275-40S 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 SAUJ100X275-40S 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 SUJ100X275-40S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×275 | 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 SUJ100X275-40S Is Used
Press Fit Tuning
Allows operators to dial in the exact 235-275 mm extend position on-site for pressing bearings without machining hard stops.
Variable Length Diverter
Adjusts the extend stroke to deflect varying package sizes on a conveyor line, providing flexible routing.
Adjustable Pallet Stop
Sets precise end positions for different pallet depths, using the 40 mm trim window to accommodate mixed loads.
Replacing the Airtac SUJ Adjustable Cylinder SUJ100X275-40S with the SAUJ100X275-40S
To replace the discontinued SUJ100X275-40S, order the direct replacement SAUJ100X275-40S, which matches the 100 mm bore, 275 mm stroke, 40 mm adjust window, 1/2" port, and FA/LB mounting. Choose the 40 mm adjust window when you need precise on-site end-position tuning between 235 and 275 mm. Because this model includes the -S magnet, you must upgrade from legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches on the SAUJ. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same bore / stroke → SAUJ100X275-40S
- ✓ 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 SUJ100X275-40S FAQ
Yes, the SUJ100X275-40S is discontinued. The direct replacement is the SAUJ100X275-40S, which matches the 100 mm bore, 275 mm stroke, 40 mm adjust window, and 1/2" port. You only need to upgrade the sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw provides a 40 mm adjust window, allowing you to shorten the 275 mm nominal extend stroke down to 235 mm. The stop sets end position only and does not lock the load.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ100X275-40S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ100X275-40S replacement — usually within 7-8 hours.