This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X800S, 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 SU40X800S
The AirTAC SU32~50 Standard Cylinder SU40X800S is a double-acting profile-type standard cylinder with a Ø40mm bore and 800mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X800S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke800 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X800S
- 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 SU40X800S
The AirTAC SU40X800S is a discontinued double-acting profile-type cylinder with an 800 mm stroke. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this unit with the SAU40X800S, a direct upgrade retaining the exact bore, stroke, force, port, and SC-series mounting.
This compact extruded-aluminium body is shorter than an ISO 15552 cylinder of the same bore. The SAU upgrade introduces CMSG/DMSG/EMSG sensors to replace the legacy CS1-B/DS1-B switches on this -S model, plus a new SAUF built-in-valve option. A practical 60% safety factor yields a 377 N working load, or roughly 32 kg vertical lift.
Airtac SU32~50 Standard Cylinder SU40X800S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X800S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X800S |
| Bore size | Ø40 mm |
| Stroke | 800 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 SAU40X800S 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 SAU40X800S 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 SU40X800S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×800 | 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 SU40X800S Is Used
Long-Stroke Diversion
Pushes packages across a 800 mm conveyor lane using the 628 N push force at 0.5 MPa, guided externally to prevent rod bending.
Material Ejection
Ejects formed parts from a machine bed over an extended 800 mm reach, relying on adjustable 21 mm air cushions for end-of-stroke deceleration.
Replacing the Airtac SU32~50 Standard Cylinder SU40X800S with the SAU40X800S
To replace the SU40X800S, order the SAU40X800S direct: verify the 40 mm bore, 800 mm stroke, 1/4" port, M12x1.25 rod thread, and SC-series mounting. Because this is an -S model, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. For the 800 mm stroke, use an external guide to prevent rod bending and side-load damage. The plain cylinder does not hold load without live air; use a pilot-operated check valve. If you need more force than the 879 N at 0.7 MPa, step up to a 50 mm bore; if less, a 32 mm bore gives 402 N at 0.5 MPa.
Replacement checklist
- ✓ Same bore / stroke → SAU40X800S
- ✓ 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 SU40X800S FAQ
Yes, the SU40X800S is discontinued. The direct replacement is the AirTAC SAU40X800S. It shares the identical 40 mm bore, 800 mm stroke, 628 N force at 0.5 MPa, 1/4" port, and SC-series mounting accessories.
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 is an -S model, the original CS1-B/DS1-B sensors are obsolete; the SAU40X800S replacement uses current CMSG/DMSG/EMSG switches.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X800S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X800S replacement — usually within 7-8 hours.