This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X800, 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 SU40X800
The AirTAC Airtac SU32~50 Standard Cylinder SU40X800 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 SAU40X800, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke800 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X800
- 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 SU40X800
The AirTAC SU40X800 is a discontinued double-acting profile-type cylinder with an 800 mm stroke and 40 mm bore. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this unit with the SAU40X800, a direct alternative retaining the exact bore, stroke, output force, port size, and SC-series mounting footprint.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors, superseding the legacy CS1-B/DS1-B switches, and adds an optional SAUF variant with a built-in 4M solenoid valve. This SKU lacks a magnet, so it cannot accept a magnetic switch.
Airtac SU32~50 Standard Cylinder SU40X800 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X800 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X800 |
| 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 SAU40X800 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 SAU40X800 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 SU40X800
| 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 SU40X800 Is Used
Long-Stroke Diverting
Pushes packages across a 800 mm conveyor lane using the 628 N push force at 0.5 MPa, requiring external guides to prevent rod bending over the long travel.
Linear Transfer
Moves parts between machining stations over an 800 mm distance, relying on the 21 mm adjustable air cushions at both ends to decelerate the load smoothly.
Replacing the Airtac SU32~50 Standard Cylinder SU40X800 with the SAU40X800
To replace the SU40X800, order the SAU40X800 direct equivalent, verifying your 1/4" port thread (PT, G, or NPT) and SC-series mounting (LB, FA, FB, CA, CB, or TC). Since this is a non-magnetized SKU, it cannot support sensors; if position detection is needed, specify an SAU40X800-S and migrate to CMSG/DMSG/EMSG switches. For sizing, the neighboring 32 mm bore yields 402 N push at 0.5 MPa, while the 50 mm bore provides 982 N—choose based on your exact load. Because the 800 mm stroke is highly extended, use an external guide to prevent rod bending and side-load damage. Note that a standard cylinder drifts on air loss; for load holding, install an external rod lock or pilot-operated check valve. If faster actuation is needed, consider the SAUF40 valve-integrated model.
Replacement checklist
- ✓ Same bore / stroke → SAU40X800
- ✓ 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 SU40X800 FAQ
Yes, the AirTAC SU40X800 is discontinued and end-of-life. The direct replacement is the SAU40X800. It shares the same 40 mm bore, 800 mm stroke, 628 N force at 0.5 MPa, 1/4" port, and SC-series 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 max of 128 kgf at 1.0 MPa. This specific SKU has no magnet and cannot accept a sensor. If you need sensing, order the SAU40X800-S replacement, which uses current CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B.
Request a Quote for the SAU40X800
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X800 replacement — usually within 7-8 hours.