This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X455S, 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 SU40X455S
The AirTAC Airtac SU32~50 Standard Cylinder SU40X455S is a double-acting profile-type standard cylinder with a Ø40mm bore and 455mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X455S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke455 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X455S
- 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 SU40X455S
The AirTAC SU40X455S is a discontinued double-acting profile-type cylinder with a 40mm bore and 455mm stroke. Delivering 628 N push at 0.5 MPa through a 1/4" port, its extruded aluminum body is more compact than an ISO 15552 unit. AirTAC replaced it with the SAU40X455S, a direct matching bore, stroke, force, port and SC-series mounting.
The SAU upgrade switches the legacy CS1-B/DS1-B sensors to CMSG/DMSG/EMSG switches, and adds a SAUF valve-integrated option the SU lacked. Note that air cushions only decelerate; use an external rod lock to hold loads.
Airtac SU32~50 Standard Cylinder SU40X455S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X455S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X455S |
| Bore size | Ø40 mm |
| Stroke | 455 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 SAU40X455S 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 SAU40X455S 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 SU40X455S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×455 | 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 SU40X455S Is Used
Vertical Lift Gates
Raises lightweight access gates up to 455mm; pair with an external rod lock to hold the gate securely when air is removed.
Component Ejection
Ejects machined parts from a fixture, relying on the adjustable 21mm cushions to decelerate the 16mm rod smoothly at cycle end.
Replacing the Airtac SU32~50 Standard Cylinder SU40X455S with the SAU40X455S
To replace this SU40X455S, order the SAU40X455S direct equivalent, verifying the 40mm bore, 455mm stroke, 1/4" port, M12x1.25 rod thread and SC-series mounting. Because this SKU includes a magnet (-S), you must upgrade from legacy CS1-B/DS1-B switches to the SAU's CMSG/DMSG/EMSG sensor family. If dropping down to a 32mm bore yields insufficient force (402 N push @0.5 MPa), stay with 40mm; if you need more power, a 50mm bore provides 982 N. For this 455mm stroke, use external guides to prevent rod bending under side loads. A plain cylinder drifts without air; add a pilot-operated check valve for load holding. The SAUF variant adds a built-in 4M valve if self-switching is desired.
Replacement checklist
- ✓ Same bore / stroke → SAU40X455S
- ✓ 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 SU40X455S FAQ
Yes, the SU40X455S is discontinued. The direct replacement is the AirTAC SAU40X455S, offering identical 40mm bore, 455mm stroke, 628 N push force at 0.5 MPa, 1/4" port and SC-series mounting compatibility.
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. Because this is an -S magnet model, it used legacy CS1-B/DS1-B switches; the SAU replacement requires the current CMSG/DMSG/EMSG sensors.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X455S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X455S replacement — usually within 7-8 hours.