This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU40X500STC, 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 SU40X500STC
The AirTAC SU32~50 Standard Cylinder SU40X500STC is a double-acting profile-type standard cylinder with a Ø40mm bore and 500mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU40X500STC, which matches its bore, stroke, force and mounting.
- BoreØ40 mm
- Stroke500 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- StatusDiscontinued → SAU40X500STC
- 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 SU40X500STC
The AirTAC SU40X500STC is a discontinued double-acting profile-type cylinder with a 40 mm bore and 500 mm stroke. It delivers 628 N push force at 0.5 MPa and features a 1/4" port. AirTAC replaced this end-of-life unit with the SAU40X500STC, a direct upgrade retaining the exact bore, stroke, output force, port size, and SC-series mounting interface.
The SAU replacement introduces modern CMSG/DMSG/EMSG sensors, superseding the legacy CS1-B/DS1-B switches used on this -S SKU, and offers a new SAUF built-in-valve variant. Note that air cushions only decelerate; an external rod lock is required to hold loads.
Airtac SU32~50 Standard Cylinder SU40X500STC Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU40X500STC |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU40X500STC |
| Bore size | Ø40 mm |
| Stroke | 500 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 SAU40X500STC 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 SAU40X500STC 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 SU40X500STC
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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 SU40X500STC Is Used
Long-Stroke Diversion
Drives a 500 mm routing arm on a packaging line to divert products between parallel conveyor belts using the 628 N push force.
Actuated Machine Guard
Cycles a 500 mm safety guard door on an automated assembly cell, utilizing the TC mounting bracket for secure pivoting.
Replacing the Airtac SU32~50 Standard Cylinder SU40X500STC with the SAU40X500STC
To replace this discontinued SU40X500STC, order the SAU40X500STC. Verify your 1/4" port, M12x1.25 rod thread, TC mounting, and magnet requirements. Because this is an -S SKU, you must upgrade from the old CS1-B/DS1-B switches to the current CMSG/DMSG/EMSG sensors. The 40 mm bore yields 628 N push at 0.5 MPa; if undersized, the 50 mm bore provides 982 N. For the 500 mm stroke, use an external guide to prevent rod bending under side loads. The cylinder will drift without air; use a pilot-operated check valve for load holding. Consider the SAUF variant if you need a built-in 4M solenoid valve.
Replacement checklist
- ✓ Same bore / stroke → SAU40X500STC
- ✓ 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 SU40X500STC FAQ
Yes, the AirTAC SU40X500STC is discontinued. The direct replacement is the SAU40X500STC. It matches the 40 mm bore, 500 mm stroke, 1/4" port, force, and SC-series TC mounting. You simply order the SAU40X500STC to swap it out.
The 40 mm bore provides 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, and a 128 kgf maximum at 1.0 MPa. Because this is an -S magnet model, the legacy CS1-B/DS1-B switches are obsolete; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU40X500STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAU40X500STC replacement — usually within 7-8 hours.