This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X270, 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 SU32~50 Standard Cylinder SU40X270
The AirTAC SU32~50 Standard Cylinder SU40X270 is a double-acting profile-type standard cylinder with a Ø40mm bore and 270mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X270, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke270 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X270
- 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 SU32~50 Standard Cylinder SU40X270
The AirTAC SU40X270 is a discontinued double-acting profile-type cylinder with a 40mm bore and 270mm stroke. It delivers 628N push force at 0.5MPa via a 1/4" port. The direct replacement is the SAU40X270, matching the exact body, stroke, force, and SC-series mounting dimensions.
This compact extruded-aluminium body is shorter than an ISO 15552 equivalent. Note this non-magnet SKU cannot take a sensor, and while the SAU upgrade retains all mechanics, it shifts sensing to CMSG/DMSG/EMSG switches and adds a SAUF built-in-valve option.
Airtac SU32~50 Standard Cylinder SU40X270 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X270 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X270 |
| Bore size | Ø40 mm |
| Stroke | 270 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 SAU40X270 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 SAU40X270 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU32~50 Standard Cylinder SU40X270
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×270 | 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 SU32~50 Standard Cylinder SU40X270 Is Used
Shuttle Shelf Pushing
Cycles 270mm to index goods along gravity rollers using 628N of thrust at 0.5MPa operating pressure.
Small Press Ejection
Ejects machined components from a fixture, relying on the 21mm adjustable cushions to decelerate.
Replacing the Airtac SU32~50 Standard Cylinder SU40X270 with the SAU40X270
To replace this SU40X270, order the SAU40X270. Verify your 1/4" port thread (PT/G/NPT), M12x1.25 rod end, and SC-series mounting (LB/FA/FB/CA/CB). Because this is a non-S SKU, it has no magnet and cannot accept a sensor; if you need position detection on the SAU, you must order an -S version and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. Sizing both ways: a 32mm bore offers 402N push at 0.5MPa, while a 50mm bore yields 982N. For this 270mm stroke, guide the load to prevent rod bending. The cylinder does not hold load without live air; use an external rod lock or pilot-operated check valve for holding. The SAUF valve-integrated variant is available if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X270
- ✓ 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 SU32~50 Standard Cylinder SU40X270 FAQ
Yes, the AirTAC SU40X270 is discontinued. The direct replacement is the SAU40X270. It shares the identical 40mm bore, 270mm stroke, 628N push force at 0.5MPa, 1/4" port, and SC-series mounting hardware for a seamless mechanical swap.
At 0.5MPa it provides 628N push and 528N pull; 879N push at 0.7MPa; 1130N at 0.9MPa; with a 128kgf theoretical max at 1.0MPa. This specific SKU lacks a magnet, so it cannot accept a sensor. The SAU replacement with the -S option uses CMSG/DMSG/EMSG switches.
Request a Quote for the SAU40X270
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X270 replacement — usually within 7-8 hours.