This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X50SH, 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 SU40X50SH
The AirTAC SU32~50 Standard Cylinder SU40X50SH is a double-acting profile-type standard cylinder with a Ø40mm bore and 50mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X50SH, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke50 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X50SH
- 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 SU40X50SH
The AirTAC SU40X50SH is a discontinued double-acting profile cylinder with a 40mm bore, 50mm stroke, and Viton H high-temperature seals (0-150 C). It delivers 628 N push and 528 N pull at 0.5 MPa via a 1/4" port. AirTAC replaced this unit with the SAU40X50SH direct replacement, matching the exact bore, stroke, output force, port size, and SC-series mounting.
This compact extruded-aluminum body is shorter than an ISO 15552 cylinder of the same bore. Note the SAU upgrade switches the legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors, and introduces the SAUF built-in-valve variant the SU line lacked.
Airtac SU32~50 Standard Cylinder SU40X50SH Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X50SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X50SH |
| Bore size | Ø40 mm |
| Stroke | 50 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 SAU40X50SH 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 SAU40X50SH 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 SU40X50SH
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 SU40X50SH Is Used
Hot-End Part Ejection
Uses the Viton H seal to withstand 150 C ambient heat while ejecting molded components with a safe 377 N working load.
Diverting Arm Actuation
Provides rapid 50mm stroke diverting action on packaging lines, operating reliably at speeds between 30-800 mm/s.
Small Pallet Stops
Functions as a compact profile-body stopper for lightweight logistics carts, reusing existing SC-series mounting brackets.
Replacing the Airtac SU32~50 Standard Cylinder SU40X50SH with the SAU40X50SH
To replace this SU40X50SH, order the SAU40X50SH direct equivalent, confirming the 40mm bore, 50mm stroke, M12x1.25 rod thread, 1/4" port (PT/G/NPT), and SC-series mounting. Because this SKU includes the -S magnet, you must migrate from the old CS1-B/DS1-B switches to the SAU-compatible CMSG/DMSG/EMSG sensor family. The -H Viton seal allows 0-150 C operation. If your application needs a held load without live air, add an external rod lock or pilot-operated check valve, as the adjustable cushion only decelerates. For higher force needs, step up to a 50mm bore (982 N push @0.5 MPa); for lighter loads, a 32mm bore (402 N push) suffices. The SAUF variant is available if you want a built-in 4M solenoid valve.
Replacement checklist
- ✓ Same bore / stroke → SAU40X50SH
- ✓ 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 SU40X50SH FAQ
Yes, the AirTAC SU40X50SH is discontinued. The direct replacement is the SAU40X50SH. It matches the 40mm bore, 50mm stroke, 628 N force at 0.5 MPa, 1/4" port, and SC-series mounting. You simply order the SAU equivalent.
The 40mm bore provides 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a 128 kgf maximum at 1.0 MPa. Because this model has a magnet (-S), it used legacy CS1-B/DS1-B switches; the SAU replacement requires upgrading to CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X50SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X50SH replacement — usually within 7-8 hours.