This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X440SH, 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 SU50X440SH
The AirTAC SU32~50 Standard Cylinder SU50X440SH is a double-acting profile-type standard cylinder with a Ø50mm bore and 440mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X440SH, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke440 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X440SH
- 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 SU50X440SH
The AirTAC SU50X440SH is a discontinued double-acting profile-type cylinder with a 50mm bore, 440mm stroke, and a high-temperature Viton H seal rated for 0 to 150 C. AirTAC replaced this legacy unit with the SAU50X440SH, a direct replacement retaining the exact 1/4" port, M16x1.5 rod thread, and SC-series mounting.
This SU model features a built-in piston magnet for legacy CS1-B/DS1-B switches. When upgrading to the SAU equivalent, you must switch to the current CMSG/DMSG/EMSG sensor family. The SAU line also introduces the SAUF variant with a built-in 4M solenoid valve, an option the original SU series never offered. The extruded aluminum profile remains shorter and more compact than a standard ISO 15552 cylinder of the same bore.
Airtac SU32~50 Standard Cylinder SU50X440SH Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X440SH |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X440SH |
| Bore size | Ø50 mm |
| Stroke | 440 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 SAU50X440SH 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 SAU50X440SH 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 SU50X440SH
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×440 | 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 SU50X440SH Is Used
High-Temp Diverting
Actuates diverting arms on hot-end conveyor lines, utilizing the Viton H seal to withstand ambient temperatures up to 150 C.
Extended Reach Gating
Drives 440mm extended-stroke safety gates or heavy material baffles, requiring external guides to prevent rod bending.
Press Ejection
Pushes molded components out of heated presses, providing 982 N of thrust at 0.5 MPa with adjustable end cushions.
Replacing the Airtac SU32~50 Standard Cylinder SU50X440SH with the SAU50X440SH
To replace the SU50X440SH, order the SAU50X440SH, confirming the 50mm bore, 440mm stroke, 1/4" port, and M16x1.5 rod thread. If sizing alternatives, neighboring bores like 40mm (628 N push @0.5 MPa) or 63mm (1559 N push @0.5 MPa) offer different force classes. Because this is a 440mm stroke, use external guides to prevent rod bending and side-load damage. The high-temp Viton H seal supports 0-150 C environments. Note that the -S magnet requires changing from CS1-B/DS1-B switches to CMSG/DMSG/EMSG sensors on the SAU. A plain cylinder drifts without live air; the 21mm cushions only decelerate, so add an external rod lock or pilot-operated check valve to hold loads.
Replacement checklist
- ✓ Same bore / stroke → SAU50X440SH
- ✓ 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 SU50X440SH FAQ
Yes, the SU50X440SH is discontinued. The direct replacement is the SAU50X440SH. It matches the 50mm bore, 440mm stroke, 982 N force, 1/4" port, and SC-series mounting. The main change is that your legacy CS1-B/DS1-B switches must be replaced with CMSG/DMSG/EMSG sensors on the SAU model.
The 50mm bore provides 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. The H seal option extends the operating temperature range from -20-70 C up to 0-150 C. Operating pressure is 0.15-1.0 MPa, and speed ranges from 30-800 mm/s.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X440SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X440SH replacement — usually within 7-8 hours.