This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X80, 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 SU40X80
The AirTAC Airtac SU32~50 Standard Cylinder SU40X80 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 SAU40X80, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke80 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X80
- 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 SU40X80
The AirTAC SU40X80 is a discontinued double-acting profile-type cylinder with an 80 mm stroke and 40 mm bore. It delivers 628 N push force at 0.5 MPa via a 1/4 inch port. AirTAC replaced this unit with the SAU40X80, a direct upgrade retaining the exact bore, stroke, output force, port size and SC-series mounting footprint.
The SAU replacement modernizes sensing by adopting current CMSG, DMSG and EMSG switches, whereas this legacy SU used CS1-B or DS1-B rails. Furthermore, the SAU line introduces a SAUF variant with a built-in 4M solenoid valve that the SU family never offered. Because this specific SKU lacks a magnet, it cannot accept any sensor.
Airtac SU32~50 Standard Cylinder SU40X80 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X80 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X80 |
| 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 SAU40X80 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 SAU40X80 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 SU40X80
| 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 SU40X80 Is Used
Small Parts Clamping
Ideal for securing 32 kg workpieces during machining, utilizing the 628 N push force at 0.5 MPa for reliable holding.
Package Diverting
Drives 80 mm stroke diverters on packaging lines to route lightweight goods without requiring external guides.
Product Ejection
Ejects sorted components from automated storage shelves with a compact profile body that saves valuable machine space.
Replacing the Airtac SU32~50 Standard Cylinder SU40X80 with the SAU40X80
To replace the SU40X80, order the SAU40X80 and confirm your 1/4 inch port thread (PT, G or NPT) alongside the M12x1.25 rod-end thread. Reuse your existing AirTAC SC-series mounting brackets directly. Since this SKU has no magnet, if your application requires position detection you must specify the SAU40X80-S and upgrade to CMSG, DMSG or EMSG sensors. For loads approaching the 1130 N push force at 0.9 MPa, consider the neighbouring 50 mm bore which provides 982 N at 0.5 MPa for greater safety. Remember that a standard cylinder drifts without live air; the 21 mm adjustable cushions only decelerate the piston near the end caps. To hold a load securely during pressure loss, install an external rod lock or pilot-operated check valve. If automated actuation is desired, explore the SAUF40X80 valve-integrated variant.
Replacement checklist
- ✓ Same bore / stroke → SAU40X80
- ✓ 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 SU40X80 FAQ
Yes, the AirTAC SU40X80 is discontinued and end-of-life. The direct replacement is the SAU40X80. It shares the identical 40 mm bore, 80 mm stroke, 628 N force at 0.5 MPa, 1/4 inch port and SC-series mounting hardware, so it fits the same application directly.
The bore delivers 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. Because this specific SKU lacks a magnet, it cannot accept a sensor; the SAU-S variant uses CMSG, DMSG or EMSG switches.
Request a Quote for the SAU40X80
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X80 replacement — usually within 7-8 hours.