This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X75N, 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 SU40X75N
The AirTAC SU32~50 Standard Cylinder SU40X75N is a double-acting profile-type standard cylinder with a Ø40mm bore and 75mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X75N, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X75N
- 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 SU40X75N
The AirTAC SU40X75N is a discontinued double-acting profile-type cylinder with a 40 mm bore and 75 mm stroke. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this end-of-line unit with the SAU40X75N, a direct upgrade sharing the exact same extruded body dimensions, output, thread, and SC-series mounting.
Because this is an NBR seal variant (-N), operating temperature spans -20 to +70 C. The compact extruded profile is shorter than an ISO 15552 cylinder of the same bore. Note this SKU lacks a magnet, so it cannot accept sensors; the SAU replacement adds a built-in valve option (SAUF) the SU line never had.
Airtac SU32~50 Standard Cylinder SU40X75N Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X75N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X75N |
| Bore size | Ø40 mm |
| Stroke | 75 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 SAU40X75N 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 SAU40X75N 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 SU40X75N
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SU40X75N Is Used
Package Diverting
Provides reliable actuation for routing small cartons on a line, utilizing the 75 mm stroke to clear the belt.
Gripper Actuation
Drives small material handling grippers where a 32 kg vertical lift margin and compact profile body are required.
Replacing the Airtac SU32~50 Standard Cylinder SU40X75N with the SAU40X75N
To replace this SU40X75N, order the SAU40X75N and verify your 1/4" port, M12x1.25 rod thread, and SC-series mounting hardware. Since this specific SKU lacks a magnet (-S), it cannot accept position sensors; if you need sensing on the new unit, specify an SAU40X75NS and migrate from legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG family. For loads requiring holding on air loss, add an external rod lock or pilot-operated check valve, as the adjustable cushions only decelerate. If you need more force, the 50 mm bore offers 982 N push at 0.5 MPa; if less is acceptable, the 32 mm bore provides 402 N.
Replacement checklist
- ✓ Same bore / stroke → SAU40X75N
- ✓ 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 SU40X75N FAQ
Yes, the SU40X75N is discontinued. The direct replacement is the AirTAC SAU40X75N. It matches the 40 mm bore, 75 mm stroke, 1/4" port, and SC-series mounting, so it fits the same application without modifications.
It delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a theoretical max of 128 kgf at 1.0 MPa. This specific SKU has no magnet, so it cannot accept sensors; the SAU replacement uses CMSG/DMSG/EMSG switches if you order the -S version.
Request a Quote for the SAU40X75N
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X75N replacement — usually within 7-8 hours.