This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X490SH, 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 SU50X490SH
The AirTAC SU32~50 Standard Cylinder SU50X490SH is a double-acting profile-type standard cylinder with a Ø50mm bore and 490mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X490SH, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke490 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X490SH
- 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 SU50X490SH
The AirTAC SU50X490SH is a discontinued double-acting profile cylinder with a 50mm bore and 490mm stroke. It delivers 982 N push force at 0.5 MPa and features a high-temperature Viton H seal (0-150 C). AirTAC replaced this unit with the SAU50X490SH, a direct upgrade retaining the exact bore, stroke, 1/4" port, and SC-series mounting.
The SAU replacement modernizes the sensor groove for CMSG/DMSG/EMSG switches, whereas this legacy SU used CS1-B/DS1-B reed sensors. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, an option the original SU line lacked.
Airtac SU32~50 Standard Cylinder SU50X490SH Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X490SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X490SH |
| Bore size | Ø50 mm |
| Stroke | 490 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×1.5 |
| 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 SAU50X490SH carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
The SAU50X490SH 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 SU50X490SH
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×490 | 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 SU50X490SH Is Used
High-Temp Ejection
Ejecting molded parts from heated environments up to 150 C using the Viton H seal, relying on the 982 N push force to clear heavy components.
Long-Stroke Diversion
Actuating a diverter gate over a wide 490mm span, requiring external guides to prevent rod bending during the extended travel.
Replacing the Airtac SU32~50 Standard Cylinder SU50X490SH with the SAU50X490SH
To replace this SU50X490SH, order the SAU50X490SH. Confirm the 1/4" port, M16x1.5 rod thread, and SC-series mounting accessories (LB/FA/FB/CA/CB) are reused. Because this SKU has the -S magnet, you must upgrade your sensors: the old CS1-B/DS1-B switches will not fit the SAU groove, so migrate to CMSG/DMSG/EMSG. The -H Viton seal handles 0-150 C environments. For sizing alternatives, a 40mm bore yields 628 N push at 0.5 MPa, while a 63mm bore provides 1559 N. At 490mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces. A plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve for load holding.
Replacement checklist
- ✓ Same bore / stroke → SAU50X490SH
- ✓ 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 SU50X490SH FAQ
Yes, the SU50X490SH is discontinued. The direct replacement is the SAU50X490SH. It shares the same 50mm bore, 490mm stroke, 1/4" port, output force, and SC-series mounting, but the -S magnet requires upgrading from legacy CS1-B/DS1-B sensors to the modern CMSG/DMSG/EMSG family.
This 50mm bore cylinder has a 1/4" air port. It generates 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. The 490mm stroke requires external load guidance to prevent rod bending.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X490SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X490SH replacement — usually within 7-8 hours.