This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X20, 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 SU50X20
The AirTAC SU32~50 Standard Cylinder SU50X20 is a double-acting profile-type standard cylinder with a Ø50mm bore and 20mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X20, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke20 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X20
- 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 SU50X20
The AirTAC SU50X20 is a discontinued double-acting profile-type cylinder with a 50 mm bore and 20 mm stroke. It delivers 982 N push force at 0.5 MPa. AirTAC replaced it with the SAU50X20, a direct replacement retaining the exact same body profile, 1/4" port, M16x1.5 rod thread, and SC-series mounting.
This legacy SKU lacks a magnet and cannot accept a sensor. The SAU upgrade enables modern CMSG/DMSG/EMSG switches, and introduces the SAUF valve-integrated variant.
Airtac SU32~50 Standard Cylinder SU50X20 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X20 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X20 |
| Bore size | Ø50 mm |
| Stroke | 20 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 SAU50X20 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 SAU50X20 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 SU50X20
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×20 | 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 SU50X20 Is Used
Short-Stroke Clamping
Ideal for holding parts securely in machining or welding fixtures using its 982 N push force over a compact 20 mm travel.
Package Diverting
Provides rapid actuation for sorting or rejecting items on a conveyor line, taking advantage of the 30-800 mm/s speed range.
Replacing the Airtac SU32~50 Standard Cylinder SU50X20 with the SAU50X20
To replace this SU50X20, order the SAU50X20. Verify your 1/4" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) stay the same. Because this specific SKU has no -S magnet, it cannot hold a sensor. If you need position detection on the SAU, order an -S model and use CMSG/DMSG/EMSG switches instead of the legacy CS1-B/DS1-B. A plain cylinder drifts without air; use an external rod lock for load holding. If more force is needed, the 63 mm bore offers 1559 N push at 0.5 MPa; if less is needed, the 40 mm bore provides 628 N. The SAUF variant adds a built-in 4M solenoid valve if you need self-switching.
Replacement checklist
- ✓ Same bore / stroke → SAU50X20
- ✓ 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 SU50X20 FAQ
Yes, the SU50X20 is discontinued. The direct replacement is the AirTAC SAU50X20. It matches the 50 mm bore, 20 mm stroke, 982 N force, 1/4" port, and SC-series mounting, so it fits the same application.
At 0.5 MPa it provides 982 N push and 825 N pull; at 0.7 MPa it pushes 1374 N, with a theoretical max of 200 kgf at 1.0 MPa. This specific SKU has no magnet (-S), so it cannot accept a sensor. The SAU replacement supports CMSG/DMSG/EMSG switches if you order the -S version.
Request a Quote for the SAU50X20
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X20 replacement — usually within 7-8 hours.