Airtac SAUD Double Rod Cylinder SAUD40X425
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X425 is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 425mm 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
- Stroke425 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 SAUD40X425
The AirTAC SAUD40X425 is a double-acting, double-rod profile cylinder. A 16 mm rod exits both ends of the hard-anodized extruded aluminum barrel, meaning both faces use the rod-side piston area. This yields exactly 528 N of thrust and retraction force at 0.5 MPa. The unit is shorter than an ISO 15552 cylinder of the same bore.
Because the rear rod can carry a cam or drive twin tooling without twisting, it suits synchronized tasks. This SKU lacks a magnet, so it cannot take CMSG or DMSG sensors. For sizing, the 528 N output gives a safe working load of roughly 317 N, or a vertical lift capacity of about 27 kg with a 2:1 margin. The 1/4 inch port and M12x1.25 rod thread are fixed by the 40 mm bore.
Airtac SAUD Double Rod Cylinder SAUD40X425 Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X425 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 425 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 SAUD40X425
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×425 | 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 SAUD40X425 Is Used
Twin-Tool Transfer
Drives two opposing grippers simultaneously with identical 528 N force, keeping part hand-off balanced without twist.
Balanced Lift Station
Raises and lowers a 27 kg payload vertically using the equal push and pull areas to prevent sagging drift.
Cam-Actuated Press
Uses the extended back rod to trip a mechanical limit valve while the front rod performs the 425 mm stamping action.
Is the Airtac SAUD Double Rod Cylinder SAUD40X425 the Right Cylinder?
Select this 40 mm bore model when you need equal 528 N force in both directions, such as for anti-rotation guidance or twin-tool duty. If you need less force, drop to the 32 mm bore (345 N both ways); if you need more, step up to the 50 mm bore (825 N both ways). Mounting is limited to Basic, FA flange, and LB foot, matching the AirTAC SC series. Since the 425 mm stroke exceeds 300 mm, add external guides to prevent rod bending under side loads. This non-magnet version cannot host sensors; choose an -S SKU if you need switches.
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 SAUD40X425 FAQ
Because the 16 mm rod exits both ends, force is equal in both directions: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. The 1/4 inch port feeds both chambers.
No. The adjustable 21 mm cushions only decelerate the piston near the stroke ends; they do not lock the load. For vertical holding on air loss, fit an external rod lock or pilot-operated check valve.
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1-Year Warranty
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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