This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X230, 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 SU40X230
The AirTAC Airtac SU32~50 Standard Cylinder SU40X230 is a double-acting profile-type standard cylinder with a Ø40mm bore and 230mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X230, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke230 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X230
- 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 SU40X230
The AirTAC SU40X230 is a discontinued double-acting profile cylinder. Delivering 628 N push and 528 N pull at 0.5 MPa, it features a 40 mm bore, 230 mm stroke, and a 1/4" port. Its extruded aluminum body is more compact than an ISO 15552 cylinder of the same bore, sharing AirTAC SC-series mounting. AirTAC replaced this EOL unit with the SAU40X230 direct replacement, matching the exact bore, stroke, output force, port size, and accessories.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU40X230 upgrade uses current CMSG/DMSG/EMSG switches for -S variants, and introduces the SAUF built-in-valve option the SU line never had.
Airtac SU32~50 Standard Cylinder SU40X230 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X230 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X230 |
| Bore size | Ø40 mm |
| Stroke | 230 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 SAU40X230 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 SAU40X230 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 SU40X230
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×230 | 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 SU40X230 Is Used
Package Diverting
Pushes medium-weight cartons at 30-800 mm/s on packaging lines, utilizing the 628 N thrust to redirect items smoothly without overshoot.
Clamp Actuation
Secures workpieces during machining, providing 528 N pull force at 0.5 MPa to hold components firmly against cutting forces.
Replacing the Airtac SU32~50 Standard Cylinder SU40X230 with the SAU40X230
To replace this discontinued SU40X230, order the SAU40X230 direct equivalent, verifying the 40 mm bore, 230 mm stroke, 1/4" port, and M12x1.25 rod thread. Confirm your PT/G/NPT thread choice and SC-series mounting (LB/FA/FB/CA/CB). Since this no-magnet SKU cannot take a switch, order an SAU40X230-S if you need position sensing, noting the SAU family uses CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B. Sizing both ways: a 32 mm bore offers 402 N push at 0.5 MPa, while a 50 mm bore provides 982 N. A plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock or pilot-operated check valve for held loads. At 230 mm stroke, ensure guide alignment to prevent rod bending under side loads. The SAUF valve-integrated variant is available if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU40X230
- ✓ 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 SU40X230 FAQ
Yes, the AirTAC SU40X230 is discontinued. The direct replacement is the SAU40X230. It matches the original 40 mm bore, 230 mm stroke, 1/4" port, output force, and SC-series mounting, fitting the same application directly.
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 and cannot take a sensor. If sensing is needed, the SAU40X230-S replacement uses CMSG/DMSG/EMSG switches.
Request a Quote for the SAU40X230
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X230 replacement — usually within 7-8 hours.