This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X290SH, 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 SU40X290SH
The AirTAC SU32~50 Standard Cylinder SU40X290SH is a double-acting profile-type standard cylinder with a Ø40mm bore and 290mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X290SH, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke290 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X290SH
- 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 SU40X290SH
The AirTAC SU40X290SH is a discontinued double-acting profile-type cylinder with a 40mm bore, 290mm stroke, and a 1/4" port. Delivering 628 N push and 528 N pull at 0.5 MPa, it features an extruded aluminum body that is shorter and more compact than an ISO 15552 cylinder of the same bore. The direct replacement is the SAU40X290SH, matching the bore, stroke, force, port, and SC-series mounting.
This SU variant includes a piston magnet (-S) and high-temperature Viton H seals (-H) rated for 0-150 C. Note that the SAU upgrade switches the legacy CS1-B/DS1-B sensors to the current CMSG/DMSG/EMSG family, and introduces the SAUF built-in-valve option the SU line lacked.
Airtac SU32~50 Standard Cylinder SU40X290SH Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X290SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X290SH |
| Bore size | Ø40 mm |
| Stroke | 290 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 SAU40X290SH 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 SAU40X290SH 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 SU40X290SH
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×290 | 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 SU40X290SH Is Used
Hot End Ejection
Ideal for pushing parts at elevated temperatures using the Viton H seal, delivering a safe 377 N working load for reliable ejection.
Mid-Stroke Diversion
The 290mm stroke provides ample reach to divert packages on a conveyor, utilizing the compact profile body to save machine space.
Actuated Gates
Drives heavy-duty access doors or flow gates with 528 N pull force at 0.5 MPa, fitting neatly within existing SC-series mountings.
Replacing the Airtac SU32~50 Standard Cylinder SU40X290SH with the SAU40X290SH
To replace this discontinued SU40X290SH, order the SAU40X290SH direct equivalent. Verify your 1/4" port, M12x1.25 rod thread, and SC-series mounting hardware. Because this SKU has the -S magnet, you must upgrade your legacy CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors. The -H Viton seal preserves the 0-150 C high-temperature rating. At 290mm stroke, size both ways: a 32mm bore yields 402 N push at 0.5 MPa, while a 50mm bore yields 982 N. For this 290mm length, ensure external guides to prevent rod bending under side loads. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot-operated check valve for held loads.
Replacement checklist
- ✓ Same bore / stroke → SAU40X290SH
- ✓ 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 SU40X290SH FAQ
Yes, the SU40X290SH is discontinued. The direct replacement is the SAU40X290SH. It shares the identical 40mm bore, 290mm stroke, 1/4" port, output force, and SC-series mounting, but the SAU uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
The 40mm bore features a 1/4" port and a 16mm rod. It delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, 1130 N push at 0.9 MPa, and a theoretical maximum of 128 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X290SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X290SH replacement — usually within 7-8 hours.