This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X800STC, 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 SU40X800STC
The AirTAC Airtac SU32~50 Standard Cylinder SU40X800STC 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 SAU40X800STC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke800 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X800STC
- 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 SU40X800STC
The AirTAC SU40X800STC is a discontinued double-acting profile cylinder with an 800 mm stroke and 40 mm bore. AirTAC replaced this unit with the SAU40X800STC direct replacement, matching the 1/4" port, M12x1.25 rod thread, 21 mm cushions, and SC-series TC mounting exactly.
Because this SKU includes a magnet, it originally used legacy CS1-B/DS1-B switches, whereas the SAU successor takes current CMSG/DMSG/EMSG sensors. The SAU family also introduces a SAUF variant with a built-in 4M solenoid valve that the SU line never offered. Both generations use an extruded aluminum barrel that is shorter than an ISO 15552 cylinder of the same bore. Note that a plain cylinder drifts without live air; the cushions only decelerate, so fit an external rod lock for held loads.
Airtac SU32~50 Standard Cylinder SU40X800STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X800STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X800STC |
| 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 SAU40X800STC 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 SAU40X800STC 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 SU40X800STC
| 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 SU40X800STC Is Used
Long-Reach Diversion
Pushes packages across a wide sorting belt over the 800 mm travel, using the 628 N push force to deflect heavy cartons reliably at 0.5 MPa.
Pallet Handling Gate
Actuates a long-stroke gating mechanism on a pallet conveyor, where the TC mount absorbs pivot stresses and the compact profile saves space.
Replacing the Airtac SU32~50 Standard Cylinder SU40X800STC with the SAU40X800STC
To replace the SU40X800STC, order the SAU40X800STC keeping the 40 mm bore, 800 mm stroke, 1/4" port, and TC mounting. If sizing alternatives, a 32 mm bore gives 402 N push at 0.5 MPa while a 50 mm bore yields 982 N. For this 800 mm stroke, prevent rod bending by supporting the load with an external guide. The -S magnet means you must switch from CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors on the SAU. For loads needing zero drift, add a pilot-operated check valve or rod lock, as the cushion only decelerates. If self-switching is needed, explore the SAUF built-in-valve option.
Replacement checklist
- ✓ Same bore / stroke → SAU40X800STC
- ✓ 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 SU40X800STC FAQ
Yes, the SU40X800STC is discontinued. The direct replacement is the SAU40X800STC, which shares the same 40 mm bore, 800 mm stroke, 1/4" port, force, and TC mounting accessories.
It provides 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a 128 kgf maximum at 1.0 MPa. Because this SKU has a magnet, it used CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors instead.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X800STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X800STC replacement — usually within 7-8 hours.