This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X25H, 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 SU50X25H
The AirTAC SU32~50 Standard Cylinder SU50X25H is a double-acting profile-type standard cylinder with a Ø50mm bore and 25mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X25H, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke25 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X25H
- 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 SU50X25H
The AirTAC SU50X25H is a discontinued double-acting profile-type cylinder with a 50mm bore, 25mm stroke, and Viton H high-temperature seals rated for 0 to 150 C. It delivers 982 N push force at 0.5 MPa through a 1/4" port. AirTAC replaced this legacy unit with the SAU50X25H, a direct upgrade retaining the exact bore, stroke, force, port, and SC-series mounting.
This compact extruded-aluminium body is shorter than an ISO 15552 cylinder of the same bore. Because this specific SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade uses current CMSG/DMSG/EMSG switches for magnet versions, and introduces the SAUF built-in-valve option absent in the SU line.
Airtac SU32~50 Standard Cylinder SU50X25H Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X25H |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X25H |
| Bore size | Ø50 mm |
| Stroke | 25 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 SAU50X25H 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 SAU50X25H 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 SU50X25H
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 SU50X25H Is Used
Hot-End Part Ejection
Short 25mm ejection strokes in heated environments relying on the 0-150 C Viton H seals and 982 N push force to clear molded components.
Press Clamping
Brief 25mm clamping action on small assemblies where the 1/4" port delivers rapid actuation at 30-800 mm/s without ISO footprint limits.
Replacing the Airtac SU32~50 Standard Cylinder SU50X25H with the SAU50X25H
To replace this SU50X25H, order the SAU50X25H and confirm the 1/4" port, M16x1.5 rod thread, and high-temp Viton H seals. Because this SKU has no magnet, it cannot support a sensor; if sensing is needed, specify an SAU50X25HS and migrate to CMSG/DMSG/EMSG switches. For loads needing 1374 N at 0.7 MPa, the 50mm bore fits, but if less force is needed, a 40mm bore provides 628 N. Note that a plain cylinder drifts on air loss; the 21mm cushions only decelerate, so use an external rod lock for holding. The SAUF valve-integrated variant is also worth evaluating.
Replacement checklist
- ✓ Same bore / stroke → SAU50X25H
- ✓ 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 SU50X25H FAQ
Yes, the SU50X25H is discontinued. The direct replacement is the AirTAC SAU50X25H. It matches the 50mm bore, 25mm stroke, 982 N force, 1/4" port, and SC-series mounting, while retaining the Viton H high-temperature seal option.
At 0.5 MPa it pushes 982 N and pulls 825 N. It pushes 1374 N at 0.7 MPa, 1767 N at 0.9 MPa, with a theoretical max of 200 kgf at 1.0 MPa. This specific SKU lacks a magnet and cannot take a sensor; magnet versions on the SAU replacement use CMSG/DMSG/EMSG switches.
Request a Quote for the SAU50X25H
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X25H replacement — usually within 7-8 hours.