This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X210, 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 SU40X210
The AirTAC Airtac SU32~50 Standard Cylinder SU40X210 is a double-acting profile-type standard cylinder with a Ø40mm bore and 210mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X210, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke210 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X210
- 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 SU40X210
The AirTAC SU40X210 is a discontinued double-acting profile-type cylinder with a 40mm bore and 210mm stroke. It delivers 628N push and 528N pull at 0.5MPa through a 1/4" port. AirTAC replaced this unit with the SAU40X210, a direct alternative retaining the exact body dimensions, force, and SC-series mounting.
The SAU upgrade introduces CMSG/DMSG/EMSG sensors (replacing the legacy CS1-B/DS1-B) and a new SAUF valve-integrated option. This no-magnet SU SKU cannot support sensing. The extruded aluminum body is more compact than an ISO 15552 cylinder of the same bore.
Airtac SU32~50 Standard Cylinder SU40X210 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X210 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X210 |
| Bore size | Ø40 mm |
| Stroke | 210 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 SAU40X210 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 SAU40X210 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 SU40X210
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×210 | 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 SU40X210 Is Used
Package Diverting
Pushes medium-weight cartons off a sorting line using the 628N push force at 0.5MPa, with the 210mm stroke clearing conveyor guide rails.
Pallet Stops
Acts as a pneumatic stop for low-profile pallets, where the compact extruded body fits neatly within tight conveyor frame clearances.
Clamp Actuation
Drives a secondary clamping arm on a machining fixture, applying safe holding force for light milling without exceeding the 377N working load.
Replacing the Airtac SU32~50 Standard Cylinder SU40X210 with the SAU40X210
To replace the SU40X210, order the SAU40X210 direct equivalent, confirming the 1/4" port, M12x1.25 rod thread, and PT/G/NPT thread choice. Because this SKU lacks a magnet, it cannot accept a sensor; if sensing is needed, specify an SAU-S model and migrate to CMSG/DMSG/EMSG switches. Size both ways: a 32mm bore yields 402N push, while a 50mm bore yields 982N at 0.5MPa. Note that air cushions only decelerate the load; for secure holding on air loss, add an external rod lock or pilot-operated check valve. At 210mm stroke, ensure guide alignment to prevent rod bending under side loads.
Replacement checklist
- ✓ Same bore / stroke → SAU40X210
- ✓ 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 SU40X210 FAQ
Yes, the SU40X210 is discontinued. The direct replacement is the AirTAC SAU40X210, which shares the identical 40mm bore, 210mm stroke, 1/4" port, output force, and SC-series mounting accessories.
It delivers 628N push and 528N pull at 0.5MPa, 879N push at 0.7MPa, and a theoretical max of 128kgf at 1.0MPa. This specific SKU has no magnet and cannot take a sensor; the SAU replacement with a magnet uses CMSG/DMSG/EMSG switches.
Request a Quote for the SAU40X210
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X210 replacement — usually within 7-8 hours.