This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X80CA, 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 SU40X80CA
The AirTAC Airtac SU32~50 Standard Cylinder SU40X80CA is a double-acting profile-type standard cylinder with a Ø40mm bore and 80mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X80CA, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke80 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X80CA
- 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 SU40X80CA
The AirTAC SU40X80CA is a discontinued double-acting profile-type cylinder with a 40mm bore and 80mm stroke. It delivers 628N push and 528N pull at 0.5MPa, utilizing a 1/4" port and an M12x1.25 rod thread. AirTAC replaced this end-of-life unit with the SAU40X80CA, a direct alternative retaining the exact bore, stroke, output force, port size, and SC-series CA mounting interface.
Because this specific SKU lacks a magnet, it cannot accept a position switch. The SAU upgrade introduces modern CMSG/DMSG/EMSG sensor compatibility for its -S variants, plus a new SAUF built-in valve option the SU line never offered.
Airtac SU32~50 Standard Cylinder SU40X80CA Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X80CA |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X80CA |
| Bore size | Ø40 mm |
| Stroke | 80 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 SAU40X80CA 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 SAU40X80CA 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 SU40X80CA
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 SU40X80CA Is Used
Clamp Actuation
Provides 528N pull force at 0.5MPa to hold an aluminum workpiece in a CNC machining fixture via a CA clevis mount.
Gate Control
Operates a gravity roller conveyor sorting gate, cycling at 30-800 mm/s to route standard totes efficiently.
Replacing the Airtac SU32~50 Standard Cylinder SU40X80CA with the SAU40X80CA
To replace the SU40X80CA, order the SAU40X80CA. Verify your 1/4" port thread (PT, G, or NPT) and confirm the CA clevis mount is reused. Since this non-magnetic SKU has no -S suffix, it cannot support sensing; if you require position detection on the new unit, specify an SAU40X80CA-S and migrate to CMSG/DMSG/EMSG switches. For loads needing 879N at 0.7MPa, the 40mm bore is correct, but if downward sizing is required, a 32mm bore provides 563N. Note that a plain cylinder drifts on air loss—the cushions only decelerate near stroke ends, so add an external rod lock for held loads. The SAUF valve-integrated variant can also simplify plumbing if desired.
Replacement checklist
- ✓ Same bore / stroke → SAU40X80CA
- ✓ 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 SU40X80CA FAQ
Yes, the AirTAC SU40X80CA is discontinued. The direct replacement is the SAU40X80CA. It matches the 40mm bore, 80mm stroke, 628N push force, 1/4" port, and CA mounting accessories, fitting the same compact profile body.
At 0.5MPa it pushes 628N and pulls 528N; at 0.7MPa it pushes 879N, with a theoretical max of 128kgf at 1.0MPa. This specific non-S SKU lacks a magnet and cannot take a sensor; the SAU replacement uses CMSG/DMSG/EMSG switches on its -S variants.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X80CA
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X80CA replacement — usually within 7-8 hours.