This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X175, 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 SU40X175
The AirTAC Airtac SU32~50 Standard Cylinder SU40X175 is a double-acting profile-type standard cylinder with a Ø40mm bore and 175mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X175, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke175 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X175
- 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 SU40X175
The AirTAC SU40X175 is a discontinued double-acting profile-type cylinder with a 40mm bore and 175mm stroke. Delivering 628 N push and 528 N pull at 0.5 MPa, it features an extruded aluminium barrel that is shorter and more compact than an ISO 15552 cylinder of the same bore. AirTAC replaced this end-of-life unit with the SAU40X175 direct replacement, retaining the exact 1/4" port, M12x1.25 rod thread, output force and SC-series mounting accessories.
Because this SKU lacks a magnet, it cannot accept a magnetic switch. The SAU40X175 upgrade introduces modern CMSG/DMSG/EMSG sensors for magnetised variants, plus a SAUF built-in 4M solenoid valve option the SU line never had.
Airtac SU32~50 Standard Cylinder SU40X175 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X175 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X175 |
| Bore size | Ø40 mm |
| Stroke | 175 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 SAU40X175 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 SAU40X175 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 SU40X175
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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 SU40X175 Is Used
Component Clamping
Ideal for securing mid-weight machined parts during milling or drilling, utilising the 628 N push force at 0.5 MPa for rigid workholding.
Package Diverting
Drives short-stroke routing gates on 40mm belt lines, providing reliable 175mm actuation to redirect parcels without occupying excessive frame depth.
Bin Push-Off
Executes 175mm ejection strokes to push sorted totes from gravity rollers, handling the 32 kg vertical-lift equivalent capacity smoothly.
Replacing the Airtac SU32~50 Standard Cylinder SU40X175 with the SAU40X175
To replace the discontinued SU40X175, order the SAU40X175 direct equivalent, verifying your 1/4" port thread (PT/G/NPT) and SC-series mounting (LB/FA/FB/CA/CB). If you previously used a magnetised -S version, note the SAU family switches from legacy CS1-B/DS1-B to current CMSG/DMSG/EMSG sensors; however, this specific non-magnetised SKU cannot take a switch. Sizing both ways: dropping to a 32mm bore yields 402 N push at 0.5 MPa, while stepping up to a 50mm bore provides 982 N. A plain cylinder drifts on air loss—the 21mm cushions only decelerate—so add an external rod lock or pilot-operated check valve for held loads. At 175mm stroke, rod bending is minimal, but for any stroke over 300mm you must guide the load to prevent side-load wear. Consider the SAUF variant if you need a self-switching integrated valve.
Replacement checklist
- ✓ Same bore / stroke → SAU40X175
- ✓ 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 SU40X175 FAQ
Yes, the SU40X175 is discontinued. The direct replacement is the AirTAC SAU40X175. It shares the identical 40mm bore, 175mm stroke, 1/4" port, force output and SC-series mounting, so it fits the same application directly.
At 0.5 MPa it provides 628 N push and 528 N pull; at 0.7 MPa it pushes 879 N, reaching a theoretical max of 128 kgf at 1.0 MPa. This specific non-magnetised SKU cannot accept a sensor, though magnetised SAU replacements use CMSG/DMSG/EMSG switches.
Request a Quote for the SAU40X175
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X175 replacement — usually within 7-8 hours.