This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X485S, 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 SU50X485S
The AirTAC SU32~50 Standard Cylinder SU50X485S is a double-acting profile-type standard cylinder with a Ø50mm bore and 485mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X485S, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke485 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X485S
- 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 SU50X485S
The AirTAC SU50X485S is a discontinued double-acting profile-type cylinder with a 50mm bore and 485mm stroke. It delivers 982N push force at 0.5MPa via a 1/4" port. AirTAC replaced this legacy unit with the SAU50X485S, a direct upgrade retaining the exact body, stroke, force, and SC-series mounting footprint.
The SAU replacement modernizes the sensor groove, requiring CMSG/DMSG/EMSG switches instead of the SU's legacy CS1-B/DS1-B reed sensors. It also introduces the SAUF valve-integrated option. Note that standard cylinders drift without live air; use an external rod lock for holding.
Airtac SU32~50 Standard Cylinder SU50X485S Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X485S |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X485S |
| Bore size | Ø50 mm |
| Stroke | 485 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 SAU50X485S 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 SAU50X485S 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 SU50X485S
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×485 | 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 SU50X485S Is Used
Package Diversion
Actuates routing gates on packaging lines, utilizing the 50mm bore's 982N push force at 0.5MPa to deflect heavy cartons reliably.
Material Lowering
Lowers lightweight fixtures over the 485mm stroke; ensure external guides are used to prevent rod bending on this long-trroke setup.
Clamp Actuation
Drives pneumatic clamps on machining fixtures, where the 1/4" port and 30-800mm/s speed provide rapid, repeatable clamping cycles.
Replacing the Airtac SU32~50 Standard Cylinder SU50X485S with the SAU50X485S
To replace the SU50X485S, order the SAU50X485S direct equivalent, confirming the 50mm bore, 485mm stroke, 1/4" port (PT/G/NPT), and SC-series mounting. Because this unit has an -S magnet, you must upgrade to CMSG/DMSG/EMSG sensors; the old CS1-B/DS1-B switches will not fit the SAU. If you need more force, the 63mm bore provides 1559N at 0.5MPa. At 485mm stroke, prevent rod bending by guiding the load externally. For load holding on air loss, add a pilot-operated check valve or rod lock, as cushions only decelerate. Consider the SAUF variant if you need a built-in 4M solenoid valve.
Replacement checklist
- ✓ Same bore / stroke → SAU50X485S
- ✓ 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 SU50X485S FAQ
Yes, the SU50X485S is discontinued. The direct replacement is the AirTAC SAU50X485S. It shares the same 50mm bore, 485mm stroke, 1/4" port, output force, and SC-series mounting. You can swap it directly without modifying your machine.
The 50mm bore provides 982N push and 825N pull at 0.5MPa, 1374N push at 0.7MPa, and a 200kgf max at 1.0MPa. Because your SU has an -S magnet, note that the SAU replacement uses current CMSG/DMSG/EMSG sensors instead of the legacy CS1-B/DS1-B switches.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X485S
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X485S replacement — usually within 7-8 hours.