This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X90CA, 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 SU40X90CA
The AirTAC Airtac SU32~50 Standard Cylinder SU40X90CA is a double-acting profile-type standard cylinder with a Ø40mm bore and 90mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X90CA, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke90 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X90CA
- 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 SU40X90CA
The AirTAC SU40X90CA is a discontinued double-acting profile-type cylinder featuring a 40 mm bore, 90 mm stroke, and a 1/4" port. Delivering 628 N push force at 0.5 MPa, it uses an extruded aluminum barrel and adjustable air cushions at both ends to remain more compact than an ISO 15552 unit of the same size. AirTAC replaced this legacy unit with the SAU40X90CA, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series CA mounting interface.
Because this SKU lacks a magnet, it cannot accept a sensing switch. If you previously ordered an -S variant, note the SAU upgrade transitions from legacy CS1-B/DS1-B sensors to the current CMSG/DMSG/EMSG family. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU series never offered.
Airtac SU32~50 Standard Cylinder SU40X90CA Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X90CA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X90CA |
| Bore size | Ø40 mm |
| Stroke | 90 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 SAU40X90CA 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 SAU40X90CA 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 SU40X90CA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×90 | 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 SU40X90CA Is Used
Clamp Actuation
Applies 628 N of push force at 0.5 MPa to secure medium workpieces in machining fixtures, utilizing the 90 mm stroke for rapid open-close cycles.
Package Diversion
Extends a 90 mm stroke to push lightweight totes between conveyor lanes, taking advantage of the compact profile body to fit in tight transfer gaps.
Replacing the Airtac SU32~50 Standard Cylinder SU40X90CA with the SAU40X90CA
To replace the discontinued SU40X90CA, order the SAU40X90CA. Confirm the 40 mm bore, 90 mm stroke, 1/4" port (default PT thread), M12x1.25 rod thread, and the CA clevis mount from the SC-series accessories. This non-magnetic SKU cannot accept a sensor; if your application requires position detection, order the SAU equivalent with the -S option and migrate to CMSG/DMSG/EMSG switches. For sizing alternatives, a 32 mm bore provides 402 N push at 0.5 MPa, while a 50 mm bore yields 982 N if you need more force. A plain double-acting cylinder does not hold a load on air loss—the 21 mm cushions only decelerate near stroke end—so fit an external rod lock or pilot-operated check valve for vertical load holding. The SAUF valve-integrated variant can also simplify cycle automation if you lack external valve plumbing.
Replacement checklist
- ✓ Same bore / stroke → SAU40X90CA
- ✓ 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 SU40X90CA FAQ
Yes, the AirTAC SU40X90CA is discontinued and end-of-life. The direct replacement is the SAU40X90CA. It shares the identical 40 mm bore, 90 mm stroke, 1/4" port, output force, and SC-series CA mounting, so it fits the same application directly.
The 40 mm bore provides 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a theoretical maximum of 128 kgf at 1.0 MPa. This specific SKU lacks a magnet and cannot accept a sensor; the SAU replacement with the -S option uses CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X90CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X90CA replacement — usually within 7-8 hours.