This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X385SH, 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 SU50X385SH
The AirTAC SU32~50 Standard Cylinder SU50X385SH is a double-acting profile-type standard cylinder with a Ø50mm bore and 385mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X385SH, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke385 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X385SH
- 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 SU50X385SH
The AirTAC SU50X385SH is a discontinued double-acting profile-type cylinder with a 50mm bore, 385mm stroke, and a Viton H high-temperature seal (0-150 C). AirTAC ended this series; the direct replacement is the SAU50X385SH, preserving the 1/4" port, M16x1.5 rod thread, output force, and SC-series mounting compatibility.
Upgrading to the SAU keeps the compact extruded aluminum body shorter than an ISO 15552 cylinder of the same bore, but changes the sensor family: this legacy SU uses CS1-B/DS1-B switches, while the SAU takes current CMSG/DMSG/EMSG sensors. The SAU line also introduces a SAUF variant with a built-in 4M solenoid valve the SU never offered. Note that a plain profile cylinder drifts on air loss—the 21mm adjustable cushions only decelerate near stroke end, so fit an external rod lock for held loads.
Airtac SU32~50 Standard Cylinder SU50X385SH Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X385SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X385SH |
| Bore size | Ø50 mm |
| Stroke | 385 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 SAU50X385SH 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 SAU50X385SH 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 SU50X385SH
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×385 | 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 SU50X385SH Is Used
Hot-End Part Ejection
Uses the Viton H seal to withstand 150 C ambient heat near ovens while pushing 982 N at 0.5 MPa to eject molded components.
Extended Transfer Divert
The 385mm stroke reaches across a wider belt to divert heavy 50 kg pallets, requiring an external guide to prevent rod bending.
Replacing the Airtac SU32~50 Standard Cylinder SU50X385SH with the SAU50X385SH
To replace this discontinued SU50X385SH, order the SAU50X385SH direct equivalent. Verify your 1/4" port thread (PT, G, or NPT), M16x1.5 rod end, and SC-series mounting hardware (LB, FA, FB, CA, CB, TC). Because this SKU includes the -S magnet, you must replace legacy CS1-B/DS1-B switches with current CMSG/DMSG/EMSG sensors for the SAU. The -H Viton seal handles 0-150 C environments. Sizing both ways: a 40mm bore gives 628 N push at 0.5 MPa, while a 63mm bore yields 1559 N—choose based on your exact load. With a 385mm stroke, prevent rod bending by supporting the load against side-load forces with an external guide. For load holding on air loss, add a pilot-operated check valve or external rod lock, as cushions only decelerate.
Replacement checklist
- ✓ Same bore / stroke → SAU50X385SH
- ✓ 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 SU50X385SH FAQ
Yes, the SU50X385SH is discontinued. The direct replacement is the SAU50X385SH. It matches the 50mm bore, 385mm stroke, 1/4" port, force, and SC-series mounting. You keep your existing brackets, but the -S magnet requires upgrading from legacy CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors.
The 50mm bore features a 1/4" air port and M16x1.5 rod thread. It generates 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical max of 200 kgf at 1.0 MPa. Operating speed is 30-800 mm/s, with 21mm adjustable cushions at both ends.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X385SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X385SH replacement — usually within 7-8 hours.