This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X35, 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 SU40X35
The AirTAC Airtac SU32~50 Standard Cylinder SU40X35 is a double-acting profile-type standard cylinder with a Ø40mm bore and 35mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X35, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke35 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X35
- 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 SU40X35
The AirTAC SU40X35 is a discontinued double-acting profile-type cylinder with a 40mm bore and 35mm stroke, delivering 628N push and 528N pull at 0.5MPa. AirTAC replaced this end-of-line unit with the SAU40X35. It is a direct upgrade: identical 1/4" port, M12x1.25 rod thread, 21mm cushions, and SC-series mounting. The extruded aluminum body is more compact than an ISO 15552 cylinder of the same bore.
Because this SKU lacks a magnet, it cannot accept a sensor. If sensing is needed, the SAU replacement requires CMSG/DMSG/EMSG switches rather than the legacy CS1-B/DS1-B. The SAU line also adds a SAUF valve-integrated variant.
Airtac SU32~50 Standard Cylinder SU40X35 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X35 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X35 |
| Bore size | Ø40 mm |
| Stroke | 35 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 SAU40X35 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 SAU40X35 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 SU40X35
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×35 | 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 SU40X35 Is Used
Clamping Mechanisms
Provides reliable 628N clamping force at 0.5MPa for securing mid-weight workpieces during machining or assembly operations.
Short-Stroke Diverting
Ideal for compact 35mm diverting or sorting gates on production lines where space is restricted but rapid 30-800mm/s actuation is needed.
Product Ejection
Delivers quick, targeted ejection of packaged goods from conveyors using a compact profile body that fits standard SC-series mounts.
Replacing the Airtac SU32~50 Standard Cylinder SU40X35 with the SAU40X35
To replace the SU40X35, order the SAU40X35, confirming the 1/4" port, M12x1.25 thread, and SC-series mounting. Since this SKU has no magnet, it cannot take a sensor; if you need position detection, order the SAU40X35-S and upgrade to CMSG/DMSG/EMSG switches. Sizing both ways: a 32mm bore offers 402N push at 0.5MPa, while a 50mm bore provides 982N. For load holding, note that a plain cylinder drifts on air loss—the 21mm cushion only decelerates near stroke end—so use an external rod lock or pilot-operated check valve. The SAUF built-in-valve option can simplify actuation. At 35mm, side-load risk is minimal.
Replacement checklist
- ✓ Same bore / stroke → SAU40X35
- ✓ 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 SU40X35 FAQ
Yes, the SU40X35 is discontinued. The direct replacement is the AirTAC SAU40X35, which matches the 40mm bore, 35mm stroke, 628N force, 1/4" port, and SC-series mounting.
It delivers 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, and a 128kgf max at 1.0MPa. It cannot hold a load without live air—the cushion only decelerates—so use a rod lock for holding. This no-magnet SKU cannot take sensors.
Request a Quote for the SAU40X35
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X35 replacement — usually within 7-8 hours.