Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X200S
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X200S is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 200mm 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
- Stroke200 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 B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X200S
The B04-SAUD40X200S is a 40 mm bore double-acting double-rod profile cylinder. The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD40X200S, mechanically identical to the base unit. A rod exits both ends, yielding equal force of 528 N each way at 0.5 MPa. The extruded aluminum barrel is shorter than an ISO 15552 cylinder of the same bore. It features a 1/4 inch port, M12x1.25 rod thread, and a 21 mm adjustable cushion at each end.
With the -S option, a built-in magnet supports CMSG, DMSG, or EMSG switches for position sensing. The twin-rod design provides anti-rotation guidance and lets the back rod carry a sensor cam. Viton H seals can extend the operating temperature to 0-150 C.
Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X200S Technical Specifications
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X200S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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 | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X200S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | 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 B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X200S Is Used
Excavator Door Latching
Synchronizes double-rod motion to lock heavy cab panels on earthmoving equipment without rotational twist.
Crane Counterweight Shift
Drives twin tooling to position ballast blocks, using equal push and pull force for balanced load transfers.
Track Tensioning Adjustment
Uses the back rod to trip a limit switch, confirming track tensioner position on tracked construction vehicles.
Is the Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X200S the Right Cylinder?
Size both ways: the 32 mm bore yields 345 N each way at 0.5 MPa, while the 63 mm bore provides 1402 N. Choose this 40 mm double-rod unit when your construction equipment needs anti-rotation stability, twin-tool driving, or back-end switch tripping. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. For the 200 mm stroke, ensure external guide rails support any side loads to prevent binding. The -S magnet enables electronic or reed sensing. A plain cylinder drifts on air loss; the cushion only decelerates, so add an external rod lock for load holding.
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 B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X200S FAQ
The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD40X200S, sharing identical specs. Force is equal both ways: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. It uses a 1/4 inch port.
The twin rods prevent rotation and allow the back rod to drive a second tool or sensor cam. It is shorter than an ISO 15552 cylinder. It cannot hold a load without live air; the cushion only decelerates, so use an external rod lock for holding.
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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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