This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X5, 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 SU40X5
The AirTAC Airtac SU32~50 Standard Cylinder SU40X5 is a double-acting profile-type standard cylinder with a Ø40mm bore and 5mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X5, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke5 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X5
- 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 SU40X5
The AirTAC SU40X5 is a discontinued double-acting profile-type cylinder with a 40 mm bore and 5 mm stroke. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this legacy unit with the SAU40X5, a direct upgrade retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
This compact extruded-aluminium body is shorter than a same-bore ISO 15552 unit. The SAU upgrade introduces CMSG/DMSG/EMSG sensors and a SAUF built-in-valve option absent on the SU. Note this non-magnetic SKU cannot accept a sensor.
Airtac SU32~50 Standard Cylinder SU40X5 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X5 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X5 |
| Bore size | Ø40 mm |
| Stroke | 5 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 SAU40X5 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 SAU40X5 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 SU40X5
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×5 | 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 SU40X5 Is Used
Short-Stroke Clamping
Ideal for holding lightweight aluminium extrusions or plastic housings securely in place during CNC machining or drilling operations.
Ejector Mechanism
Provides a fast 5 mm kick to separate small stamped electronic components from a die plate immediately after the cutting cycle finishes.
Package Diverting
Acts as a compact pop-up stopper or deflector finger on a packaging line, routing small cardboard cartons without derailing the belt.
Replacing the Airtac SU32~50 Standard Cylinder SU40X5 with the SAU40X5
To replace this SU40X5, order the SAU40X5 keeping the 40 mm bore, 5 mm stroke, M12x1.25 rod thread, 1/4" port, and SC-series mounts. Because this SKU lacks a magnet (-S), it cannot support sensing; if detection is needed, specify an SAU40X5-S and migrate to CMSG/DMSG/EMSG switches. Size both ways: a 32 mm bore offers 402 N push at 0.5 MPa, while a 50 mm bore yields 982 N. A plain cylinder drifts on air loss—the cushion only decelerates—so add a pilot-operated check valve for load holding. For higher cycling needs, the SAUF variant integrates a 4M solenoid valve.
Replacement checklist
- ✓ Same bore / stroke → SAU40X5
- ✓ 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 SU40X5 FAQ
Yes, the SU40X5 is end-of-life. The direct replacement is the AirTAC SAU40X5. It shares the identical 40 mm bore, 5 mm stroke, 628 N output force at 0.5 MPa, 1/4" port, and SC-series mounting hardware, fitting the exact same envelope.
It delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a theoretical max of 128 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept sensors; legacy -S versions used CS1-B/DS1-B switches, while the SAU replacement uses CMSG/DMSG/EMSG.
Request a Quote for the SAU40X5
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X5 replacement — usually within 7-8 hours.