Airtac SAUD Double Rod Cylinder SAUD50X85S
The AirTAC Airtac SAUD Double Rod Cylinder SAUD50X85S is a genuine double-acting profile-type standard air cylinder with a Ø50mm bore and 85mm stroke, 1/4" air ports and adjustable end cushioning. Its hard-anodized aluminum-profile barrel is shorter than an ISO 15552 cylinder of the same bore, and it shares SC-series mounting accessories.
- BoreØ50 mm
- Stroke85 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
- 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 SAUD Double Rod Cylinder SAUD50X85S
The AirTAC SAUD50X85S is a double-acting, double-rod profile cylinder. A piston rod exits both ends, meaning both faces use the rod-side area and the output force is equal in both directions. This 50mm bore model delivers 825 N each way at 0.5 MPa, with a 1/4" port and M16x1.5 rod thread.
The extruded aluminum profile barrel is shorter than a standard ISO 15552 cylinder of the same bore. The -S suffix denotes a built-in magnet for CMSG, DMSG, or EMSG switches. For sizing, the 825 N output at 0.5 MPa translates to a safe working load of roughly 495 N, or a vertical lift capacity of about 42 kg with a 2:1 margin.
Airtac SAUD Double Rod Cylinder SAUD50X85S Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD50X85S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø50 mm |
| Stroke | 85 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 stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAU series datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G (BSPP). A high-temperature seal (0-150 °C) is available.
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 | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAUD Double Rod Cylinder SAUD50X85S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×85 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAU-family variants: SAUD (double rod), SAUJ (adjustable stroke), SAUF (with built-in solenoid valve), and SAU-S with built-in magnet. Seals: TPU (blank) / Viton H / NBR N. Sensor switches: CMSG / DMSG / EMSG.
Where the Airtac SAUD Double Rod Cylinder SAUD50X85S Is Used
Synchronized Transfer
Drives two parallel pick-and-place grippers simultaneously from one piston, keeping strokes perfectly synchronized without twist.
Rear Cam Sensing
Uses the protruding back rod to trip a CMSG or DMSG switch in tight spaces where front-end sensor mounting is blocked.
Twin-Spindle Drilling
Feeds two opposing machining heads with equal push and pull force, ensuring balanced pressure on both ends of the workpiece.
Is the Airtac SAUD Double Rod Cylinder SAUD50X85S the Right Cylinder?
Choose this 50mm bore (825 N both ways at 0.5 MPa) when your application demands non-rotating anti-twist guidance, twin tooling, or a back rod to carry a sensor cam. If you need less force, step down to the 40mm bore (528 N both ways); if you need more, step up to the 63mm bore (1402 N both ways). Mounting is limited to Basic, FA, and LB styles, matching the AirTAC SC series. The -S magnet enables position sensing. For this 85mm stroke, standard guides handle side loads easily, but always support external loads on longer strokes.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB — same as SC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAUD Double Rod Cylinder SAUD50X85S FAQ
Because it is a double-rod cylinder, the force is equal in both directions. It provides 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa on both the extend and retract strokes.
No, a plain double-rod cylinder drifts without live air; the adjustable 21mm cushions only decelerate near stroke end. To hold a load, install an external rod lock or pilot-operated check valve.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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