This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X520S, 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 SU50X520S
The AirTAC SU32~50 Standard Cylinder SU50X520S is a double-acting profile-type standard cylinder with a Ø50mm bore and 520mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X520S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke520 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X520S
- 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 SU50X520S
The AirTAC SU50X520S is a discontinued double-acting profile cylinder with a 50mm bore and 520mm stroke, delivering 982 N push force at 0.5 MPa. AirTAC replaced it with the SAU50X520S, a direct upgrade sharing the exact same extruded body, 1/4" port, M16x1.5 rod thread and SC-series mounting.
This compact profile design is shorter than an ISO 15552 cylinder of the same bore. The -S magnet on this legacy unit worked with CS1-B/DS1-B switches, but the SAU replacement uses current CMSG/DMSG/EMSG sensors and adds a SAUF built-in-valve option.
Airtac SU32~50 Standard Cylinder SU50X520S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X520S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X520S |
| Bore size | Ø50 mm |
| Stroke | 520 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 SAU50X520S 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 SAU50X520S 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 SU50X520S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×520 | 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 SU50X520S Is Used
Component Ejection
Clears machined parts from a fixture over a 520mm distance, relying on 982 N thrust at 0.5 MPa for positive ejection.
Replacing the Airtac SU32~50 Standard Cylinder SU50X520S with the SAU50X520S
To replace the SU50X520S, order the SAU50X520S, confirming the 1/4" port, M16x1.5 thread, PT/G/NPT option and SC mounting. Because this has a -S magnet, note the sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG. If you need higher force, the 63mm bore offers 1559 N [email protected]; for less, the 40mm gives 628 N. At 520mm stroke, prevent rod bending by using an external guide to manage side loads. A plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve for load holding. The SAUF valve-integrated variant is available if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU50X520S
- ✓ 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 SU50X520S FAQ
Yes, the SU50X520S is discontinued. The direct replacement is the AirTAC SAU50X520S. It matches the 50mm bore, 520mm stroke, 982 N force, 1/4" port and SC-series mounting. The -S magnet sensor family changes from CS1-B/DS1-B to CMSG/DMSG/EMSG.
At 0.5 MPa it pushes 982 N and pulls 825 N; at 0.7 MPa it pushes 1374 N, with a theoretical max of 200 kgf at 1.0 MPa. The cushion only decelerates; it does not hold. Use an external rod lock or pilot-operated check valve to prevent drifting on air loss.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X520S
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