This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X430S, 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 SU40X430S
The AirTAC SU32~50 Standard Cylinder SU40X430S is a double-acting profile-type standard cylinder with a Ø40mm bore and 430mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X430S, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke430 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X430S
- 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 SU40X430S
The AirTAC SU40X430S is a discontinued double-acting profile-type cylinder with a 40mm bore and 430mm stroke. It delivers 628 N push and 528 N pull at 0.5 MPa, operating at 30-800 mm/s through a 1/4" port. The direct replacement is the SAU40X430S, matching the bore, stroke, force, port and SC-series mounting.
Upgrading to the SAU40X430S retains the compact extruded aluminum body but changes the sensor family. This legacy SU40X430S uses CS1-B/DS1-B switches, whereas the SAU replacement requires CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve that the SU series never offered. Note that a plain cylinder does not hold load without live air; use an external rod lock for secure holding.
Airtac SU32~50 Standard Cylinder SU40X430S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X430S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X430S |
| Bore size | Ø40 mm |
| Stroke | 430 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 SAU40X430S 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 SAU40X430S 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 SU40X430S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×430 | 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 SU40X430S Is Used
Package Diverting
Pushes medium-weight cartons on a 430mm stroke across a conveyor line, utilizing the 628 N push force at 0.5 MPa to ensure positive transfer without stalling.
Pallet Stopping
Acts as a pneumatic stop gate for incoming pallets, absorbing impact via the 21mm adjustable air cushions while holding position against accumulated goods.
Component Sorting
Cycles rapidly to deflect metal parts into designated chutes, where the 32 kg safe vertical lift capacity easily manages the workpiece weight through the 430mm travel.
Replacing the Airtac SU32~50 Standard Cylinder SU40X430S with the SAU40X430S
To replace this discontinued SU40X430S, order the SAU40X430S direct equivalent, confirming the 40mm bore, 430mm stroke, 1/4" port, M12x1.25 rod thread and SC-series mounting. Because this SKU includes the -S magnet, you must switch from the legacy CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors on the SAU. If you need self-switching, explore the SAUF valve-integrated option. For sizing both ways, a 32mm bore yields 402 N push at 0.5 MPa, while a 50mm bore yields 982 N. At 430mm, this long stroke requires an external guide to prevent rod bending and side-load damage. The air cushion only decelerates the piston; it does not hold the load, so add a pilot-operated check valve for vertical applications.
Replacement checklist
- ✓ Same bore / stroke → SAU40X430S
- ✓ 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 SU40X430S FAQ
Yes, the AirTAC SU40X430S is discontinued and end-of-life. The direct replacement is the SAU40X430S. It provides identical performance with the same 40mm bore, 430mm stroke, 628 N push force at 0.5 MPa, 1/4" port, and SC-series mounting compatibility. You can order the SAU40X430S as a direct fit.
The SAU40X430S delivers 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, 1130 N at 0.9 MPa, and a theoretical max of 128 kgf at 1.0 MPa. Because this is a -S magnet model, the SAU replacement requires upgrading from the old CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X430S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X430S replacement — usually within 7-8 hours.