This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X375, 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 SU40X375
The AirTAC Airtac SU32~50 Standard Cylinder SU40X375 is a double-acting profile-type standard cylinder with a Ø40mm bore and 375mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X375, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke375 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X375
- 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 SU40X375
The AirTAC SU40X375 is a discontinued double-acting profile-type cylinder with a 40 mm bore and 375 mm stroke. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this legacy unit with the SAU40X375, a direct alternative retaining the exact bore, stroke, output force, port size, and SC-series mounting.
Because this 375 mm stroke is relatively long, use an external guide to prevent rod bending under side loads. The SAU upgrade introduces CMSG/DMSG/EMSG sensors (replacing the old CS1-B/DS1-B) and a SAUF valve-integrated option.
Airtac SU32~50 Standard Cylinder SU40X375 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X375 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X375 |
| Bore size | Ø40 mm |
| Stroke | 375 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 SAU40X375 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 SAU40X375 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 SU40X375
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×375 | 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 SU40X375 Is Used
Package Diverting
Pushes cartons off a main belt using the 628 N push force at 0.5 MPa, with the 375 mm stroke reaching across the lane.
Component Ejection
Ejects machined parts from a fixture, utilizing the 21 mm adjustable air cushions at both ends to decelerate the 375 mm travel.
Replacing the Airtac SU32~50 Standard Cylinder SU40X375 with the SAU40X375
To replace the SU40X375, order the SAU40X375 direct equivalent, verifying your 1/4" port, M12x1.25 rod thread, and SC-series mounting. This SKU lacks a magnet (-S) and cannot accept a sensor; if sensing is needed, the SAU family uses CMSG/DMSG/EMSG switches. For loads needing 879 N at 0.7 MPa, this 40 mm bore fits, but if you need more force, step up to a 50 mm bore. Since the stroke is 375 mm, add an external guide to prevent rod bending. The cylinder does not hold load without live air; use a pilot-operated check valve or external rod lock. The SAUF variant adds a built-in 4M solenoid valve if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU40X375
- ✓ 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 SU40X375 FAQ
Yes, the AirTAC SU40X375 is discontinued. The direct replacement is the SAU40X375, which shares the identical 40 mm bore, 375 mm stroke, 628 N force at 0.5 MPa, 1/4" port, and SC-series mounting accessories.
The SU40X375 provides 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. It does not hold load without live air; the cushions only decelerate. For vertical holding, use an external rod lock or pilot-operated check valve.
Request a Quote for the SAU40X375
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X375 replacement — usually within 7-8 hours.