This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X170, 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 SU40X170
The AirTAC SU32~50 Standard Cylinder SU40X170 is a double-acting profile-type standard cylinder with a Ø40mm bore and 170mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X170, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke170 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X170
- 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 SU40X170
The AirTAC SU40X170 is a discontinued double-acting profile-type cylinder with a 40mm bore and 170mm stroke. Delivering 628N push force at 0.5MPa, it uses a 1/4" port and M12x1.25 rod thread. AirTAC replaced this EOL unit with the SAU40X170, a direct alternative retaining the exact body, force, and SC-series mounting. The SAU brings current CMSG/DMSG/EMSG sensors and a new SAUF valve-integrated option.
This SKU lacks a magnet, so it cannot accept a sensor. The cushion only decelerates; use an external rod lock to hold loads. The extruded aluminum profile is shorter than an ISO 15552 cylinder of the same bore.
Airtac SU32~50 Standard Cylinder SU40X170 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X170 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X170 |
| Bore size | Ø40 mm |
| Stroke | 170 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 SAU40X170 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 SAU40X170 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 SU40X170
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×170 | 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 SU40X170 Is Used
Package Diverting
Pushes medium-weight cartons off a belt line using 628N thrust at 0.5MPa, with the 170mm stroke clearing guide rails.
Pallet Stops
Acts as a pneumatic stop for incoming pallets, absorbing impact via the 21mm adjustable cushion before retracting.
Replacing the Airtac SU32~50 Standard Cylinder SU40X170 with the SAU40X170
To replace the SU40X170, order the SAU40X170. Confirm the 40mm bore, 170mm stroke, 1/4" port, and PT thread. Because this SKU has no -S magnet, it cannot take a sensor; if sensing is needed, specify an SAU40X170S and migrate to CMSG/DMSG/EMSG switches (the SU used CS1-B/DS1-B). For higher loads, the 50mm bore provides 982N push at 0.5MPa; for tighter spaces, the 32mm bore gives 402N. At 170mm stroke, guide the load to prevent rod bending. A plain cylinder drifts on air loss, so use a pilot-operated check valve for holding. The SAUF variant adds a built-in valve if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU40X170
- ✓ 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 SU40X170 FAQ
Yes, the SU40X170 is discontinued. The direct replacement is the SAU40X170. It matches the 40mm bore, 170mm stroke, 628N force, 1/4" port, and SC-series mounting. The SAU upgrade uses CMSG/DMSG/EMSG sensors and offers an SAUF built-in valve option.
At 0.5MPa it pushes 628N and pulls 528N; at 0.7MPa it pushes 879N, reaching 1130N at 0.9MPa. The theoretical max is 128kgf at 1.0MPa. This specific SKU has no magnet, so it cannot accept a sensor; order the -S version for sensing.
Request a Quote for the SAU40X170
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X170 replacement — usually within 7-8 hours.