This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X275-10S, 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 SUJ40X275-10S
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X275-10S is a double-acting profile-type standard cylinder with a Ø40mm bore and 275mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUJ40X275-10S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke275 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X275-10S
- 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 SUJ40X275-10S
The AirTAC SUJ40X275-10S is a discontinued double-acting double-rod profile cylinder with a 40 mm bore and 275 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 10 mm on-site, giving a usable range of 265-275 mm. The direct replacement is the SAUJ40X275-10S, matching the bore, stroke, force, port and FA/LB mounting.
The stop screw sets the end position but is not a lock; loads drift on air loss, so use an external rod lock for holding. The SAUJ upgrade switches legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches.
Airtac SUJ Adjustable Cylinder SUJ40X275-10S Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X275-10S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X275-10S |
| Bore size | Ø40 mm |
| Stroke | 275 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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, 21 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAUJ40X275-10S carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
The SAUJ40X275-10S 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 SUJ40X275-10S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | 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 SUJ40X275-10S Is Used
Diverter Gate Positioning
Allows maintenance teams to dial in the exact 265-275 mm extend position of a diverter gate on-site, ensuring product flows into the correct packaging lane without re-machining hard stops.
Transfer Pusher Stroke Tuning
Provides a 10 mm adjustment window for a transfer pusher, letting operators compensate for varying package sizes on the line while maintaining a safe 377 N working load.
Pallet Stop Fine-Tuning
Enables precise end-position tuning for pallet stops in a 32 kg vertical lift or horizontal feed application, where exact contact distance is critical for robotic pick-up.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X275-10S with the SAUJ40X275-10S
To replace this discontinued SUJ40X275-10S, order the SAUJ40X275-10S direct. It keeps the 40 mm bore, 275 mm stroke, 1/4" port and FA/LB mounting. The -S suffix means a piston magnet is present; you must upgrade legacy CS1-B/DS1-B sensors to current CMSG/DMSG/EMSG switches. Choose the 10 mm adjust window if you need precise 265-275 mm extend tuning. Because the stroke is 275 mm (under 300 mm), side-load leverage is minimal, but always verify rod alignment to prevent seal wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X275-10S
- ✓ 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 SUJ40X275-10S FAQ
Yes, the SUJ40X275-10S is discontinued. The direct replacement is the SAUJ40X275-10S, which matches the 40 mm bore, 275 mm stroke, 1/4" port, force and FA/LB mounting. You will need to upgrade your sensors from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG switches.
The external stop screw provides a 10 mm adjust window, shortening the extend stroke from the 275 mm maximum down to 265 mm. The stop sets end position and is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X275-10S
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X275-10S replacement — usually within 7-8 hours.