This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X75H, 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 SU40X75H
The AirTAC SU32~50 Standard Cylinder SU40X75H is a double-acting profile-type standard cylinder with a Ø40mm bore and 75mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X75H, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X75H
- 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 SU40X75H
The AirTAC SU40X75H is a discontinued double-acting profile-type cylinder with a 40mm bore, 75mm stroke, and Viton H high-temperature seals rated for 0-150 C. It delivers 628 N push force at 0.5 MPa via a 1/4" port. The direct replacement is the SAU40X75H, matching the exact body, force, and SC-series mounting footprint.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade also introduces the SAUF variant with a built-in 4M solenoid valve, a feature the SU line never offered.
Airtac SU32~50 Standard Cylinder SU40X75H Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X75H |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X75H |
| Bore size | Ø40 mm |
| Stroke | 75 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 SAU40X75H 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 SAU40X75H 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 SU40X75H
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SU40X75H Is Used
Hot Stamp Ejection
Uses the 75mm stroke and Viton H seals to push finished parts out of heated stamping dies, handling the 32 kg safe vertical lift margin reliably.
High-Temp Diverting
Actuates routing gates on warm conveyor lines, using the 628 N push force at 0.5 MPa to pivot heavy product flows without faltering.
Clamp Actuation
Secures workpieces in thermal welding fixtures where ambient temperatures reach 120 C, relying on the compact profile body to save space.
Replacing the Airtac SU32~50 Standard Cylinder SU40X75H with the SAU40X75H
To replace this SU40X75H, order the SAU40X75H direct equivalent, confirming the 40mm bore, 75mm stroke, 1/4" port, M12x1.25 rod thread, and SC-series mounting. This unit uses Viton H seals for 0-150 C environments; if high heat is not required, standard TPU seals suffice. Since this is a no-magnet SKU, it cannot accept position sensors, but if sensing is needed on the new unit, the SAU uses CMSG/DMSG/EMSG switches rather than the legacy CS1-B/DS1-B. For loads requiring 879 N at 0.7 MPa, step up to a 50mm bore; for lighter loads, a 32mm bore provides 402 N. Note that air cushions only decelerate the piston; an external rod lock or pilot-operated check valve is required to hold a load securely.
Replacement checklist
- ✓ Same bore / stroke → SAU40X75H
- ✓ 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 SU40X75H FAQ
Yes, the SU40X75H is discontinued. The direct replacement is the SAU40X75H. It shares the same 40mm bore, 75mm stroke, 1/4" port, output force, and SC-series mounting accessories. The SAU body is a direct physical replacement, but if you need sensors, note that the SAU uses current CMSG/DMSG/EMSG switches instead of the older CS1-B/DS1-B.
At 0.5 MPa it provides 628 N push and 528 N pull force, increasing to 879 N push at 0.7 MPa, with a theoretical maximum of 128 kgf at 1.0 MPa. Operating speed is 30-800 mm/s. Because this specific SKU lacks a magnet, it cannot accept magnetic position switches. Additionally, the adjustable air cushions only decelerate the piston near stroke end; they do not hold the load, so you must use an external rod lock for static holding.
Request a Quote for the SAU40X75H
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X75H replacement — usually within 7-8 hours.