Airtac SAUD Double Rod Cylinder SAUD40X950S
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X950S is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 950mm 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.
- BoreØ40 mm
- Stroke950 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- 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 SAUD40X950S
The AirTAC SAUD40X950S is a double-acting, double-rod profile cylinder. A 16 mm rod exits both ends of the hard-anodized aluminum extruded barrel, meaning both faces use the rod-side area. This yields equal push and pull force of 528 N each way at 0.5 MPa. The 1/4 inch port and M12x1.25 rod thread are fixed by the 40 mm bore. Because it is a profile-type design, it is shorter than an ISO 15552 cylinder of the same bore.
This unit includes the -S magnet option for CMSG, DMSG, or EMSG switches. The extended 950 mm stroke is within the 1200 mm standard limit, but demands external guidance to prevent rod bending under side loads. For sizing, a safe working load is roughly 317 N, and vertical lift capacity is about 27 kg with a 2:1 margin. A plain cylinder drifts on air loss; the 21 mm adjustable cushions only decelerate, so add a rod lock for holding.
Airtac SAUD Double Rod Cylinder SAUD40X950S Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X950S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 950 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SAUD40X950S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×950 | 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 SAUD40X950S Is Used
Twin-Tool Machining
Drives two opposing tools simultaneously from one piston, utilizing the equal force both ways to machine parts from two sides without rotational twist.
Dual-End Transfer
Pushes a product off a conveyor while the back rod simultaneously clears a downstream lane, keeping operations synchronized on one axis.
Cam-Triggered Sorting
Uses the protruding back rod as a mechanical cam to trigger an external CMSG or DMSG switch, confirming full extension in sorting gates.
Is the Airtac SAUD Double Rod Cylinder SAUD40X950S the Right Cylinder?
When sizing this double-rod unit, consider the neighboring bores. The smaller 32 mm bore yields 345 N both ways, while the larger 50 mm bore provides 825 N each way at 0.5 MPa. This 40 mm bore gives 528 N both ways. Choose a double-rod configuration when you need anti-rotation guidance, want to drive twin tooling, or require a back rod to trip a switch. Mounting is limited to Basic, FA, and LB styles, compatible with the AirTAC SC series. The -S suffix enables electronic or reed sensing. Because the stroke is 950 mm, you must use external guides to manage side loads and prevent rod bending.
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 SAUD40X950S FAQ
Because the 16 mm rod exits both ends, the force is equal in both directions. It provides 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. The 1/4 inch port supplies air to both chambers.
No. A plain cylinder drifts when air is lost or a valve is centered. The 21 mm adjustable cushions only decelerate near stroke end. To hold a load, install an external rod lock or pilot-operated check valve.
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