This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X550N, 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 SU50X550N
The AirTAC SU32~50 Standard Cylinder SU50X550N is a double-acting profile-type standard cylinder with a Ø50mm bore and 550mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X550N, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke550 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X550N
- 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 SU50X550N
The AirTAC SU50X550N is a discontinued double-acting profile-type cylinder with a 50mm bore, 550mm stroke, 20mm rod, and 1/4" port. Delivering 982 N push force at 0.5 MPa, it is replaced by the direct replacement SAU50X550N, which shares the exact body, force, and SC-series mounting. The NBR seal supports -20 to +70 C.
This SKU lacks a magnet, so it cannot accept a sensor. The SAU upgrade uses CMSG/DMSG/EMSG switches and adds a SAUF valve-integrated option.
Airtac SU32~50 Standard Cylinder SU50X550N Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X550N |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X550N |
| Bore size | Ø50 mm |
| Stroke | 550 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 SAU50X550N 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 SAU50X550N 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 SU50X550N
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×550 | 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 SU50X550N Is Used
Long-Stroke Diversion
Pushes packages across a transfer line using the 550mm stroke, with the 982 N force handling moderate friction loads safely.
Component Ejection
Ejects molded parts from a press area, where the compact profile body saves space compared to standard ISO cylinders.
Replacing the Airtac SU32~50 Standard Cylinder SU50X550N with the SAU50X550N
To replace this discontinued SU with the SAU50X550N, match the 50mm bore, 550mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting. If stepping up, the 63mm bore yields 1559 N at 0.5 MPa; stepping down, the 40mm yields 628 N. Because this lacks a -S magnet, no sensor can be fitted. For the 550mm stroke, use an external guide to prevent rod bending under side loads. Note that air cushions only decelerate; use a rod lock or pilot check valve to hold loads.
Replacement checklist
- ✓ Same bore / stroke → SAU50X550N
- ✓ 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 SU50X550N FAQ
Yes, the SU50X550N is discontinued. The direct replacement is the AirTAC SAU50X550N. It matches the 50mm bore, 550mm stroke, 982 N force, 1/4" port, and SC-series mounting. The SAU body is identical, but if you previously used -S sensors, note the SAU uses CMSG/DMSG/EMSG switches.
The 50mm bore has a 1/4" port. Force output is 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. The cylinder operates at 30-800 mm/s with a 21mm adjustable cushion at both ends.
Related AirTAC SAU Cylinders
Request a Quote for the SAU50X550N
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X550N replacement — usually within 7-8 hours.