This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X170S, 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 SU40X170S
The AirTAC SU32~50 Standard Cylinder SU40X170S 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 SAU40X170S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke170 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X170S
- 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 SU40X170S
The AirTAC SU40X170S is a discontinued double-acting profile-type cylinder with a 40mm bore and 170mm stroke. Delivering 628 N push force at 0.5 MPa, its direct replacement is the SAU40X170S, which preserves the 1/4" port, M12x1.25 rod thread, and SC-series mounting compatibility.
The SAU upgrade introduces current CMSG/DMSG/EMSG sensors to replace this model's legacy CS1-B/DS1-B switches, and adds an optional SAUF built-in 4M solenoid valve the SU line lacked.
Airtac SU32~50 Standard Cylinder SU40X170S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X170S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X170S |
| 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 SAU40X170S 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 SAU40X170S 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 SU40X170S
| 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 SU40X170S Is Used
Package Diverting
Pushes light cartons off a belt line using 628 N at 0.5 MPa, with the 170 mm stroke clearing guide rails.
Pallet Stopper Gate
Acts as a compact 40 mm bore profile-body stop for low-inertia pallets, reusing existing SC-series brackets.
Replacing the Airtac SU32~50 Standard Cylinder SU40X170S with the SAU40X170S
To replace the SU40X170S, order the SAU40X170S and confirm the 1/4" port, M12x1.25 rod thread, and SC-series mounting. Because the -S magnet is present, note that your legacy CS1-B/DS1-B switches must change to CMSG/DMSG/EMSG sensors. If you need a larger bore, the 50mm offers 982 N push at 0.5 MPa; if smaller, the 32mm provides 402 N. A plain cylinder does not hold load on air loss—the cushion only decelerates—so use an external rod lock for vertical holding. The SAUF variant offers a built-in valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X170S
- ✓ 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 SU40X170S FAQ
Yes, the SU40X170S is discontinued. The direct replacement is the SAU40X170S, which matches the 40mm bore, 170mm stroke, 628 N push force at 0.5 MPa, 1/4" port, and SC-series mounting.
It delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a 128 kgf max at 1.0 MPa. The -S magnet worked with legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X170S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X170S replacement — usually within 7-8 hours.