This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X675S, 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 SU40X675S
The AirTAC SU32~50 Standard Cylinder SU40X675S is a double-acting profile-type standard cylinder with a Ø40mm bore and 675mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X675S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke675 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X675S
- 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 SU40X675S
The AirTAC SU40X675S is a discontinued double-acting profile-type cylinder with a 40 mm bore and 675 mm stroke. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this end-of-line unit with the SAU40X675S, a direct upgrade retaining the exact bore, stroke, force, and SC-series mounting footprint.
The SAU replacement modernizes the sensor groove, upgrading from the legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG family. It also introduces the SAUF variant with a built-in 4M solenoid valve, an option the original SU lacked.
Airtac SU32~50 Standard Cylinder SU40X675S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X675S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X675S |
| Bore size | Ø40 mm |
| Stroke | 675 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 SAU40X675S 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 SAU40X675S 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 SU40X675S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×675 | 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 SU40X675S Is Used
Long-Reach Diversion
Pushes packages across a 675 mm transfer lane with a safe 377 N working load, using the compact profile body to save machine space.
Component Ejection
Cycles at 30-800 mm/s to eject molded parts from a press, reusing existing SC-series front and rear mounting brackets.
Replacing the Airtac SU32~50 Standard Cylinder SU40X675S with the SAU40X675S
To replace this SU40X675S, order the SAU40X675S and confirm the 1/4" port, M12x1.25 rod thread, and SC-series mounting. Because the -S magnet is present, note the switch family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. For loads needing 879 N at 0.7 MPa, the 50 mm bore offers more thrust, while the 32 mm bore is more compact. At 675 mm, this long stroke risks rod bending; use an external guide to prevent side-load damage. The air cushion only decelerates the piston, so add a pilot-operated check valve or rod lock to hold loads securely.
Replacement checklist
- ✓ Same bore / stroke → SAU40X675S
- ✓ 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 SU40X675S FAQ
Yes, the SU40X675S is discontinued. The direct replacement is the SAU40X675S, offering the same 40 mm bore, 675 mm stroke, 1/4" port, and SC-series mounting compatibility.
It delivers 628 N push and 528 N pull at 0.5 MPa, 879 N at 0.7 MPa, and a 128 kgf max at 1.0 MPa. The -S magnet works with legacy CS1-B/DS1-B switches; the SAU replacement requires CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X675S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X675S replacement — usually within 7-8 hours.