This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU50X185, 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 SU50X185
The AirTAC Airtac SU32~50 Standard Cylinder SU50X185 is a double-acting profile-type standard cylinder with a Ø50mm bore and 185mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU50X185, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke185 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU50X185
- 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 SU50X185
The AirTAC SU50X185 is a discontinued double-acting profile-type cylinder with a 50mm bore and 185mm stroke. Built with an extruded aluminum barrel, it delivers 982 N push force at 0.5 MPa and features a 1/4" port. AirTAC replaced this EOL unit with the SAU50X185, a direct replacement retaining the exact bore, stroke, output force, port size, and SC-series mounting compatibility.
Because this SKU lacks a magnet, it cannot accept a sensor. The SAU upgrade introduces CMSG/DMSG/EMSG switch compatibility for -S variants and adds a SAUF built-in-valve option the SU line never had. Note that standard air cushions only decelerate the piston; they do not hold loads mechanically.
Airtac SU32~50 Standard Cylinder SU50X185 Technical Specifications
| Model | Airtac SU32~50 Standard Cylinder SU50X185 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU50X185 |
| Bore size | Ø50 mm |
| Stroke | 185 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 SAU50X185 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 SAU50X185 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 SU50X185
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×185 | 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 SU50X185 Is Used
Clamping Mechanisms
Ideal for securing medium workpieces during machining, utilizing the 982 N push force at 0.5 MPa to hold components firmly without deflection.
Package Diverting
Provides reliable actuation for mid-weight package routing gates, using the 185mm stroke to push items smoothly onto adjacent conveyor lines.
Replacing the Airtac SU32~50 Standard Cylinder SU50X185 with the SAU50X185
To replace the SU50X185, order the SAU50X185 direct equivalent, verifying the 50mm bore, 185mm stroke, 1/4" port, M16x1.5 rod thread, and SC-series mounting (LB/FA/FB/CA/CB). If sizing neighbors, a 40mm bore yields 628 N push at 0.5 MPa, while a 63mm bore provides 1559 N. This non-magnetic SKU cannot support sensing; if you need position detection, specify an -S SAU model and migrate to CMSG/DMSG/EMSG switches. At 185mm stroke, side-load risks are low, but always guide the load to prevent rod bending. For load holding during air loss, add an external rod lock or pilot-operated check valve, as cushions only decelerate. Consider the SAUF variant if you need a built-in 4M solenoid valve.
Replacement checklist
- ✓ Same bore / stroke → SAU50X185
- ✓ 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 SU50X185 FAQ
Yes, the SU50X185 is discontinued. The direct replacement is the AirTAC SAU50X185. It shares the identical 50mm bore, 185mm stroke, 982 N force at 0.5 MPa, 1/4" port, and SC-series mounting accessories, fitting the same application footprint seamlessly.
At 0.5 MPa, it pushes 982 N and pulls 825 N. Push force is 1374 N at 0.7 MPa, 1767 N at 0.9 MPa, with a theoretical max of 200 kgf at 1.0 MPa. Because this specific SKU has no magnet, it cannot accept a sensor; the SAU -S variants use CMSG/DMSG/EMSG switches.
Request a Quote for the SAU50X185
Send us the quantity and destination. We confirm price, stock and lead time on the SAU50X185 replacement — usually within 7-8 hours.