This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X475, 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 SU40X475
The AirTAC Airtac SU32~50 Standard Cylinder SU40X475 is a double-acting profile-type standard cylinder with a Ø40mm bore and 475mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X475, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke475 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X475
- 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 SU40X475
The AirTAC SU40X475 is a discontinued double-acting profile-type cylinder with a 40mm bore and 475mm stroke. It delivers 628N push and 528N pull at 0.5MPa via a 1/4" port. AirTAC replaced this unit with the SAU40X475, a direct replacement retaining the exact bore, stroke, output force, and SC-series mounting. The extruded aluminum profile is more compact than an ISO 15552 cylinder of the same size.
Since this is a non-magnet SKU, it cannot accept a sensor. The SAU upgrade also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU line lacked. Note that a plain cylinder drifts without live air; use an external rod lock for held loads.
Airtac SU32~50 Standard Cylinder SU40X475 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X475 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X475 |
| Bore size | Ø40 mm |
| Stroke | 475 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 SAU40X475 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 SAU40X475 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 SU40X475
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×475 | 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 SU40X475 Is Used
Package Diverting
Pushes cartons at 90 degrees on a sorting line using a 475mm reach, safely handling loads near the 377N working limit with adjustable end cushions.
Pallet Push-Off
Acts as a sweep arm to push goods onto a pallet, where the 628N thrust at 0.5MPa easily moves packaged boxes without needing higher pressure.
Light Pressing
Lower a light tooling head 475mm to press components into place, relying on external linear guides to prevent rod bending over the long stroke.
Replacing the Airtac SU32~50 Standard Cylinder SU40X475 with the SAU40X475
To replace the SU40X475, order the SAU40X475, confirming the 1/4" port, M12x1.25 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) match your fixture. If moving to the SAU and requiring position sensing, you must add a magnet (-S) and switch to the current CMSG/DMSG/EMSG sensors, as the SU had none and the legacy CS1-B/DS1-B switches are obsolete. For the 475mm stroke, prevent rod bending by adding external guides to absorb side loads. If you need higher force, the 50mm bore offers 982N push at 0.5MPa; if you need less, the 32mm bore provides 402N. A standard cylinder does not hold load on air loss, so add a pilot-operated check valve or rod lock if required. For faster cycling, consider the SAUF valve-integrated variant.
Replacement checklist
- ✓ Same bore / stroke → SAU40X475
- ✓ 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 SU40X475 FAQ
Yes, the SU40X475 is discontinued. The direct replacement is the AirTAC SAU40X475. It shares the exact 40mm bore, 475mm stroke, 628N push force at 0.5MPa, 1/4" port, and SC-series mounting accessories, so it bolts right in.
At 0.5MPa it pushes 628N and pulls 528N. At 0.7MPa push is 879N, at 0.9MPa it is 1130N, and the theoretical max is 128kgf at 1.0MPa. This specific SKU lacks a magnet, so it cannot take a sensor. If you need sensing on the SAU replacement, order the -S option and use CMSG/DMSG/EMSG switches.
Request a Quote for the SAU40X475
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X475 replacement — usually within 7-8 hours.