This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUJ40X275-10, 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 SUJ40X275-10
The AirTAC Airtac SUJ Adjustable Cylinder SUJ40X275-10 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 SAUJ40X275-10, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke275 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAUJ40X275-10
- 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 SUJ40X275-10
The AirTAC SUJ40X275-10 is a double-acting double-rod profile cylinder with an external stop screw that lets you trim the extend stroke by up to 10 mm on-site, yielding a usable 265-275 mm stroke. The extruded aluminum profile barrel is more compact than an ISO 15552 cylinder of the same bore. This SUJ model is discontinued; the direct replacement is the SAUJ40X275-10, matching the 40 mm bore, 275 mm max stroke, 1/4" port, and FA/LB mounting.
The SAUJ upgrade adopts current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches used here. Note this non-SKU lacks a magnet and cannot take a sensor. The adjust stop sets end position but is not a load lock; use an external rod lock for held loads.
Airtac SUJ Adjustable Cylinder SUJ40X275-10 Technical Specifications
| Model | Airtac SUJ Adjustable Cylinder SUJ40X275-10 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUJ40X275-10 |
| 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 SAUJ40X275-10 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 SAUJ40X275-10 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 SUJ40X275-10
| 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 SUJ40X275-10 Is Used
Custom End-Position Clamping
Allows operators to dial in the exact 265-275 mm extend stop on-site to accommodate varying material thicknesses without reprogramming the machine cycle.
Adjustable Transfer Diverter
Provides a field-tuned extension endpoint for diverting packages of differing widths on a conveyor line, ensuring gentle contact without rigid hard-stops.
Variable-Depth Pallet Stops
Enables fine-tuning of the extend stroke by up to 10 mm to handle slight pallet depth variations in manual loading stations.
Replacing the Airtac SUJ Adjustable Cylinder SUJ40X275-10 with the SAUJ40X275-10
To replace the discontinued SUJ40X275-10, order the direct replacement SAUJ40X275-10, which preserves the 40 mm bore, 275 mm stroke, 10 mm adjust window, 1/4" port, M12x1.25 rod thread, and FA/LB mounting. Choose the 10 mm adjust window if you need precise 265-275 mm extend endpoint tuning. Because this specific SKU lacks a magnet, it cannot accept sensors; if position detection is required, select an SAUJ with the -S suffix and use CMSG/DMSG/EMSG switches. For stroke lengths of 300 mm or greater, carefully verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same bore / stroke → SAUJ40X275-10
- ✓ 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 SUJ40X275-10 FAQ
Yes, the AirTAC SUJ40X275-10 is discontinued. The direct replacement is the SAUJ40X275-10, which matches the 40 mm bore, 275 mm stroke, 10 mm adjust window, 1/4" port, and FA/LB mounting. The SAUJ also uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The external stop screw offers a 10 mm adjust window, meaning the 275 mm nominal extend stroke can be shortened to 265 mm on-site. The stop sets end position but is not a load lock.
Related AirTAC SAU Cylinders
Request a Quote for the SAUJ40X275-10
Send us the quantity and destination. We confirm price, stock and lead time on the SAUJ40X275-10 replacement — usually within 7-8 hours.