This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X370, 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 SU40X370
The AirTAC Airtac SU32~50 Standard Cylinder SU40X370 is a double-acting profile-type standard cylinder with a Ø40mm bore and 370mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X370, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke370 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X370
- 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 SU40X370
The AirTAC SU40X370 is a discontinued double-acting profile-type cylinder with a 40mm bore and 370mm stroke. It delivers 628N push force at 0.5MPa via a 1/4" port. The direct replacement is the SAU40X370, matching the bore, stroke, force, port, and SC-series mounts.
This compact extruded-aluminium body is shorter than equivalent ISO cylinders. Since this SKU lacks a magnet, it cannot accept sensors; the SAU upgrade uses CMSG/DMSG/EMSG switches and offers a SAUF built-in-valve variant.
Airtac SU32~50 Standard Cylinder SU40X370 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X370 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X370 |
| Bore size | Ø40 mm |
| Stroke | 370 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 SAU40X370 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 SAU40X370 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 SU40X370
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×370 | 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 SU40X370 Is Used
Pallet Stop Gate
Acts as a 370mm stroke stopper for pallets, utilizing the 628N push force at 0.5MPa to halt loads securely within compact frame dimensions.
Component Ejection
Ejects machined parts from a fixture using the 32kg vertical lift capacity, requiring external guides to manage the long 370mm stroke.
Replacing the Airtac SU32~50 Standard Cylinder SU40X370 with the SAU40X370
To replace this SU40X370, order the SAU40X370 direct equivalent, verifying your 1/4" port, M12x1.25 rod thread, and SC-series mounting. If moving up, the 50mm bore yields 982N push at 0.5MPa; dropping to 32mm gives 402N. Because the 370mm stroke invites rod bending, use external guides to prevent side loads. Note this non-magnetic SKU cannot take sensors, whereas the SAU supports CMSG/DMSG/EMSG switches and a SAUF valve-integrated option. For load holding on air loss, add an external rod lock or pilot-operated check valve, as cushions only decelerate.
Replacement checklist
- ✓ Same bore / stroke → SAU40X370
- ✓ 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 SU40X370 FAQ
Yes, the SU40X370 is discontinued. The direct replacement is the AirTAC SAU40X370. It shares the identical 40mm bore, 370mm stroke, 628N force, 1/4" port, and SC-series mounting accessories, fitting the same application directly.
It provides 628N push and 528N pull at 0.5MPa, 879N at 0.7MPa, and a 128kgf max at 1.0MPa. This specific SKU has no magnet and cannot accept sensors. The SAU replacement supports CMSG/DMSG/EMSG switches, and cushions only decelerate; they do not hold loads.
Request a Quote for the SAU40X370
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X370 replacement — usually within 7-8 hours.