This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X5S, 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 SU40X5S
The AirTAC Airtac SU32~50 Standard Cylinder SU40X5S 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 SAU40X5S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke5 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X5S
- 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 SU40X5S
The AirTAC SU40X5S is a discontinued double-acting profile-type cylinder with a 40mm bore and 5mm stroke. It delivers 628N push force at 0.5MPa through a 1/4" port. The direct replacement is the SAU40X5S, matching the bore, stroke, force, port, and SC-series mounting.
Because the 5mm stroke is extremely short, this unit excels in tight clamping jobs. The -S magnet worked with legacy CS1-B/DS1-B switches, but the SAU replacement requires current CMSG/DMSG/EMSG sensors.
Airtac SU32~50 Standard Cylinder SU40X5S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X5S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X5S |
| 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 SAU40X5S 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 SAU40X5S 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 SU40X5S
| 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 SU40X5S Is Used
Micro Clamping
Ideal for securing small electronic components or thin materials in automated assembly fixtures where only a few millimeters of travel are needed.
Short Ejection
Provides a rapid 5mm push to eject lightweight plastic parts from a molding cavity or separate thin sheets from a stack.
Gate Diverting
Acts as a compact diverter arm in packaging lines, shifting small product flow paths with minimal physical footprint.
Replacing the Airtac SU32~50 Standard Cylinder SU40X5S with the SAU40X5S
To replace this SU40X5S, order the SAU40X5S direct equivalent, verifying your 1/4" port, M12x1.25 rod thread, and SC-series mounting. If you need more force, the 50mm bore offers 982N push at 0.5MPa; for tighter spaces, the 32mm bore provides 402N. The -S magnet means you must upgrade from CS1-B/DS1-B to CMSG/DMSG/EMSG sensors. For automated actuation, consider the SAUF variant with its built-in 4M solenoid valve. The 5mm stroke needs no side-load guide, but note this cylinder will not hold a load without live air—use an external rod lock or pilot-operated check valve for secure holding.
Replacement checklist
- ✓ Same bore / stroke → SAU40X5S
- ✓ 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 SU40X5S FAQ
Yes, the SU40X5S is discontinued. The direct replacement is the SAU40X5S, which maintains the same 40mm bore, 5mm stroke, 628N force, 1/4" port, and SC-series mounting compatibility.
At 0.5MPa it pushes 628N and pulls 528N; at 0.7MPa it pushes 879N, with a theoretical max of 128kgf at 1.0MPa. The -S magnet on this legacy model used CS1-B/DS1-B switches, but the SAU replacement requires CMSG/DMSG/EMSG sensors.
Request a Quote for the SAU40X5S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X5S replacement — usually within 7-8 hours.