This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X215, 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 SU40X215
The AirTAC Airtac SU32~50 Standard Cylinder SU40X215 is a double-acting profile-type standard cylinder with a Ø40mm bore and 215mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X215, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke215 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X215
- 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 SU40X215
The AirTAC SU40X215 is a discontinued double-acting profile-type cylinder with a 40mm bore and 215mm stroke. Built with an extruded aluminum barrel, it is more compact than an ISO 15552 unit of the same bore and delivers 628 N push / 528 N pull at 0.5 MPa. AirTAC replaced this EOL unit with the SAU40X215, a direct replacement retaining the exact 1/4" port, M12x1.25 rod thread, force class, and SC-series mounting.
Because this specific SKU lacks a magnet, it cannot accept a position sensor. If sensing is needed on the upgrade, the SAU family uses current CMSG/DMSG/EMSG switches (the SU line used legacy CS1-B/DS1-B). The SAU series also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU never offered.
Airtac SU32~50 Standard Cylinder SU40X215 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X215 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X215 |
| Bore size | Ø40 mm |
| Stroke | 215 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 SAU40X215 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 SAU40X215 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 SU40X215
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×215 | 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 SU40X215 Is Used
Package Diverting
Actuates routing gates on 24V conveyor lines where the 628 N push force at 0.5 MPa easily deflects standard totes.
Vertical Lift Stops
Raises 32 kg pallet stops in low-rise vertical lift modules using the 215mm stroke and 1/4" air port.
Clamp Actuation
Drives mid-force clamping arms on CNC machining fixtures, leveraging the compact profile body to save cell space.
Replacing the Airtac SU32~50 Standard Cylinder SU40X215 with the SAU40X215
To replace the SU40X215, order the SAU40X215 direct equivalent, confirming the 40mm bore, 215mm stroke, 1/4" port (PT/G/NPT), and SC-series mounting hardware (LB/FA/FB/CA/CB) are retained. Since this SKU has no -S magnet, it cannot support a sensor; if your upgrade requires sensing, specify an SAU -S model and switch to CMSG/DMSG/EMSG sensors. For sizing alternatives, a 32mm bore yields 402 N push at 0.5 MPa, while a 50mm bore provides 982 N. Note that a plain cylinder drifts without live air—the 21mm cushions only decelerate at stroke ends, so use an external rod lock or pilot-operated check valve for held loads. At 215mm stroke, side-load and rod-bending risks are moderate; ensure proper guide alignment to prevent premature seal wear. The SAUF built-in-valve option is useful if you want to simplify pneumatic plumbing.
Replacement checklist
- ✓ Same bore / stroke → SAU40X215
- ✓ 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 SU40X215 FAQ
Yes, the AirTAC SU40X215 is discontinued and end-of-life. The direct replacement is the SAU40X215. It shares the same 40mm bore, 215mm stroke, 628 N output force at 0.5 MPa, 1/4" port, and SC-series mounting accessories, fitting the exact same application.
The 40mm bore generates 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 -S magnet, so it cannot accept a magnetic switch. The SAU replacement supports CMSG/DMSG/EMSG sensors if you order an -S version.
Request a Quote for the SAU40X215
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X215 replacement — usually within 7-8 hours.