This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X260S, 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 SU40X260S
The AirTAC Airtac SU32~50 Standard Cylinder SU40X260S is a double-acting profile-type standard cylinder with a Ø40mm bore and 260mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X260S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke260 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X260S
- 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 SU40X260S
The AirTAC SU40X260S is a discontinued double-acting profile-type cylinder with a 40mm bore and 260mm stroke. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this legacy unit with the SAU40X260S, a direct alternative retaining the exact bore, stroke, output force, and SC-series mounting footprint.
Because this SKU includes a magnet (-S), it originally used CS1-B/DS1-B switches; the SAU replacement upgrades to current CMSG/DMSG/EMSG sensors. The SAU family also adds a SAUF built-in 4M valve option the SU line lacked. The extruded aluminum body is more compact than an ISO 15552 cylinder of the same bore.
Airtac SU32~50 Standard Cylinder SU40X260S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X260S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X260S |
| Bore size | Ø40 mm |
| Stroke | 260 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 SAU40X260S 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 SAU40X260S 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 SU40X260S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×260 | 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 SU40X260S Is Used
Package Diverting
Pushes small to mid-size cartons off a sorting line using 628 N thrust, with the 260mm stroke clearing guide rails.
Pallet Stops
Acts as a pneumatic stop for lightweight pallets, dropping away to release flow when the conveyor resumes.
Clamp Actuation
Drives a secondary clamp on an assembly fixture, applying repeatable holding force for machining or welding.
Replacing the Airtac SU32~50 Standard Cylinder SU40X260S with the SAU40X260S
To replace this discontinued SU40X260S, order the SAU40X260S. Confirm your 1/4" port, M12x1.25 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) carry over directly. If your machine relied on the -S magnet, note the sensor family changes from legacy CS1-B/DS1-B to CMSG/DMSG/EMSG. A plain cylinder drifts without live air, so for load holding add an external rod lock or pilot-operated check valve. At 260mm stroke, side-load and rod-bending risks are moderate; guide the load to prevent seal damage. If you need more force, the 50mm bore offers 982 N [email protected] MPa; if less is acceptable, the 32mm bore provides 402 N. The SAUF valve-integrated variant can simplify cycling if you lack external valve plumbing.
Replacement checklist
- ✓ Same bore / stroke → SAU40X260S
- ✓ 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 SU40X260S FAQ
Yes, the SU40X260S is end-of-life. The direct replacement is the AirTAC SAU40X260S. It shares the same 40mm bore, 260mm stroke, 1/4" port, force, and SC-series mounting accessories, so it fits the same application directly.
At 0.5 MPa it provides 628 N push and 528 N pull force, rising to 879 N push at 0.7 MPa, with a theoretical max of 128 kgf at 1.0 MPa. Because this is an -S model with a magnet, it used legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors instead.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X260S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X260S replacement — usually within 7-8 hours.