This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAUD50X350, 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 SUD50X350
The AirTAC Airtac SUD Series Double Rod Cylinder SUD50X350 is a double-acting profile-type standard cylinder with a Ø50mm bore and 350mm stroke, 1/4" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAUD50X350, which matches its bore, stroke, force and mounting.
- BoreØ50 mm
- Stroke350 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAUD50X350
- 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 SUD50X350
The AirTAC SUD50X350 is a discontinued double-acting double-rod profile cylinder with a 50mm bore and 350mm stroke. A rod exits both ends on one piston, meaning push and pull force are equal at 825N @0.5MPa, 1154N @0.7MPa, and 1484N @0.9MPa. The direct replacement is the SAUD50X350, retaining the 1/4" port, M16x1.5 rod thread, and FA/LB mounting. This non-magnetic SKU cannot take a sensor.
Because the rear rod can carry a sensor cam or drive a second tool simultaneously, the design offers excellent anti-rotation stability. Note that air cushions only decelerate the piston near stroke end; an external rod lock is required to hold loads without live air.
Airtac SUD Series Double Rod Cylinder SUD50X350 Technical Specifications
| Model | Airtac SUD Series Double Rod Cylinder SUD50X350 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAUD50X350 |
| Bore size | Ø50 mm |
| Stroke | 350 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 SAUD50X350 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 SAUD50X350 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 SUD50X350
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 50 | Bore size in mm. |
| ×350 | 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 SUD50X350 Is Used
Dual-Tool Machining Station
Uses the protruding rear rod to actuate a secondary clamping fixture simultaneously with the primary front tool, keeping equal force in both directions.
Anti-Rotation Transfer Gate
Employs the double-rod geometry to prevent mechanical twist during part diversion across a 350mm transfer span, ensuring smooth product flow.
Vertical Lift Diverter
Lifts packages vertically using the equal both-ways force, safely handling loads near the 42kg computed limit while relying on external guides for stability.
Replacing the Airtac SUD Series Double Rod Cylinder SUD50X350 with the SAUD50X350
To replace this discontinued SUD50X350, order the SAUD50X350 direct equivalent, which matches the 50mm bore, 350mm stroke, 1/4" port, and FA/LB mounting. Size both directions by checking the equal 825N @0.5MPa force against your load, stepping to neighbouring bores (63mm or 40mm) if more or less thrust is needed. Choose a double-rod cylinder when you need anti-rotation stability or a back rod to drive a second tool. For the 350mm stroke, use external guides to prevent rod bending under side-load. This non-magnetic SKU cannot accept sensors, but the SAUD upgrade supports CMSG/DMSG/EMSG switches if you add the -S suffix.
Replacement checklist
- ✓ Same bore / stroke → SAUD50X350
- ✓ 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 SUD50X350 FAQ
Yes, the SUD50X350 is discontinued. The direct replacement is the SAUD50X350, which matches the 50mm bore, 350mm stroke, 1/4" port, and FA/LB mounting.
Force is equal both ways at 825N @0.5MPa, 1154N @0.7MPa, and 1484N @0.9MPa. It features a 1/4" port, a 20mm rod, M16x1.5 rod thread, and adjustable 21mm cushions at each end.
Related AirTAC SAU Cylinders
Request a Quote for the SAUD50X350
Send us the quantity and destination. We confirm price, stock and lead time on the SAUD50X350 replacement — usually within 7-8 hours.