This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUD50X175, 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 SUD Series Double Rod Cylinder SUD50X175
The AirTAC Airtac SUD Series Double Rod Cylinder SUD50X175 is a double-acting profile-type standard cylinder with a Ø50mm bore and 175mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUD50X175, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke175 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD50X175
- 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 SUD Series Double Rod Cylinder SUD50X175
The AirTAC SUD50X175 is a double-acting profile cylinder featuring a rod exiting both ends, ensuring push and pull force is equal both ways at 825 N @0.5 MPa. This discontinued model uses an extruded aluminium barrel and a 1/4 inch port. The direct replacement is the SAUD50X175, which matches the 50mm bore, 175mm stroke, and FA/LB mounting. Because this SKU lacks a magnet, it cannot take a magnetic switch.
The double-rod design provides anti-rotation stability and allows the back rod to drive a second tool. The SAUD upgrade transitions to current CMSG/DMSG/EMSG sensors from the legacy CS1-B/DS1-B, while the SAUF variant adds a built-in valve. Note that air cushions only decelerate; use an external rod lock for load holding.
Airtac SUD Series Double Rod Cylinder SUD50X175 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD50X175 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD50X175 |
| Bore size | Ø50 mm |
| Stroke | 175 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 SAUD50X175 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 SAUD50X175 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SUD Series Double Rod Cylinder SUD50X175
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×175 | 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 SUD Series Double Rod Cylinder SUD50X175 Is Used
Dual-Tool Machining Station
Drives two opposing tools simultaneously from a single piston, utilising the equal both ways force to maintain perfectly balanced cutting pressure.
Anti-Rotation Transfer Gate
The twin rods prevent mechanical twisting during rapid part diversion on the line, ensuring smooth lateral transfers without binding.
Replacing the Airtac SUD Series Double Rod Cylinder SUD50X175 with the SAUD50X175
To replace the SUD50X175, use the SAUD50X175 direct, matching the 50mm bore, 175mm stroke, and 1/4 inch port. Size both ways by checking neighbour bores (32/40/63) to ensure the equal both ways force meets your needs. Choose a double rod for anti-rotation or driving two tools. Use FA or LB mounting (SC series only). For the -S sensor version, change from CS1-B/DS1-B to CMSG/DMSG/EMSG. For this 175mm stroke (>=300mm rule applies to longer strokes), verify the side-load line. Add an external rod lock for held loads, as cushions only decelerate.
Replacement checklist
- ✓ Same bore / stroke → SAUD50X175
- ✓ 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 SUD Series Double Rod Cylinder SUD50X175 FAQ
Yes, the SUD50X175 is discontinued. The direct replacement is the SAUD50X175, which matches the 50mm bore, 175mm stroke, equal both ways force, and 1/4 inch port.
The force is equal both ways: 825 N @0.5 MPa, 1154 N @0.7 MPa, and 1484 N @0.9 MPa. It uses a 1/4 inch port and adjustable 21mm cushions at each end.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD50X175
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD50X175 replacement — usually within 7-8 hours.