Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X500
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X500 is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 500mm 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
- Stroke500 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-SAUD40X500
The B04-SAUD40X500 is a double-acting double-rod profile cylinder. The B04- prefix marks this as AirTAC's construction-machinery dedicated variant of the SAUD40X500, mechanically identical to the base model. Because a rod exits both ends, the output force is equal in both directions at 528 N each way at 0.5 MPa. The extruded aluminum profile barrel is shorter than an ISO 15552 cylinder of the same bore. It uses a 1/4 inch port and M12x1.25 rod thread.
The twin rods resist torsion and allow driving two tools simultaneously. A high-temperature Viton H seal option extends operation to 150 C. This SKU lacks a magnet and cannot accept CMSG or DMSG sensors.
Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X500 Technical Specifications
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X500 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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-SAUD40X500
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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-SAUD40X500 Is Used
Excavator Linkage
Drives synchronized counter-balanced panels on heavy equipment linkages where equal push and pull force prevents linkage binding.
Aggregate Gate Diverters
Actuates dual-tool diverter gates on crushing conveyors, using the twin rods to maintain parallel alignment without twisting.
Crusher Tooling
Operates paired clearing tools on rock crushing machinery, leveraging the compact profile to fit within tight machinery enclosures.
Is the Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD40X500 the Right Cylinder?
When sizing this 40 mm bore double-rod actuator, compare it against neighboring bores: the 32 mm version yields 345 N both ways, while the 63 mm provides 1402 N. Choose this twin-rod design when your construction equipment requires anti-rotation guidance, synchronized twin-tool driving, or a back rod to trip an external switch. Mounting is limited to Basic, FA flange, and LB foot styles, compatible with the AirTAC SC series. Because this unit lacks the -S magnet option, it cannot support magnetic position sensing. The 500 mm stroke demands external guide rails to prevent rod bending under side loads.
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-SAUD40X500 FAQ
The B04- prefix denotes the construction-machinery dedicated variant of the SAUD40X500, sharing identical specifications. 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 never quotes a larger single-rod push value.
No. This SKU has no magnet and cannot accept sensors. A plain cylinder drifts on air loss; the air cushion only decelerates near stroke end. For load holding, install an external rod lock or pilot-operated check valve.
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Covers non-human-caused product damage.
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