This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X700S, 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 SU40X700S
The AirTAC Airtac SU32~50 Standard Cylinder SU40X700S is a double-acting profile-type standard cylinder with a Ø40mm bore and 700mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X700S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke700 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X700S
- 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 SU40X700S
The AirTAC SU40X700S is a discontinued double-acting profile-type cylinder with a 40 mm bore and 700 mm stroke. It delivers 628 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this unit with the SAU40X700S, a direct upgrade sharing the exact same body profile, stroke, force, and SC-series mounting.
The SAU upgrade switches the legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors, and introduces the SAUF built-in 4M valve variant the SU line lacked. Note that standard cylinders drift without live air; the cushions only decelerate, so use an external rod lock for load holding.
Airtac SU32~50 Standard Cylinder SU40X700S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X700S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X700S |
| Bore size | Ø40 mm |
| Stroke | 700 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 SAU40X700S 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 SAU40X700S 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 SU40X700S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×700 | 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 SU40X700S Is Used
Long-Stroke Diversion
Actuates routing gates on packaging lines, utilizing the 700 mm stroke to clear wide product lanes safely.
Component Ejection
Pushes machined parts out of an enclosed workstation, benefiting from the compact profile body to save floor space.
Replacing the Airtac SU32~50 Standard Cylinder SU40X700S with the SAU40X700S
To replace the SU40X700S, order the SAU40X700S and verify your 1/4" port threads (PT/G/NPT), M12x1.25 rod end, and SC-series mounting. Because this SKU includes a magnet (-S), you must upgrade your legacy CS1-B/DS1-B switches to the SAU-compatible CMSG/DMSG/EMSG family. At 0.5 MPa it yields 628 N push and 528 N pull; if undersized, step up to a 50 mm bore (982 N push). The 700 mm stroke demands an external guide to prevent rod bending under side loads. For suspended loads, add a pilot-operated check valve or rod lock, as the cylinder alone cannot hold position. If you need self-switching, explore the SAUF valve-integrated variant.
Replacement checklist
- ✓ Same bore / stroke → SAU40X700S
- ✓ 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 SU40X700S FAQ
Yes, the SU40X700S is discontinued. The direct replacement is the AirTAC SAU40X700S. It matches the 40 mm bore, 700 mm stroke, 1/4" port, output force, and SC-series mounting. You simply order the SAU equivalent.
The SAU40X700S 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. Because your old SU used a magnet with CS1-B/DS1-B switches, you must upgrade to the current CMSG/DMSG/EMSG sensor family for the SAU replacement.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X700S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X700S replacement — usually within 7-8 hours.