Airtac B04-SAU Standard Air Cylinder for Construction Machinery B04-SAU40X250
AirTAC B04-SAU40X250 Construction Machinery Standard Cylinder Specifications
- Model: B04-SAU40X250
- Series: B04-SAU (Construction Machinery Series)
- Bore size: 40mm
- Stroke: 250mm
- Operating pressure: 0.05–0.8 MPa
- Operating medium: Dry air (Lubricated or non-lubricated)
- Buffer type: Adjustable cushioning (Both ends)
- Port size: PT1/4 (G1/8 optional)
- Ambient temperature: -20℃ to +80℃
- Piston speed: 50–800 mm/s
- Material:
- Cylinder tube: Aluminum alloy with hard anodization
- Piston rod: Chrome-plated steel (Cr-Mo steel base)
- Seals: NBR (Nitrile rubber)
- Weight: 2.5 kg (Dry, without accessories)
- Dimensions:
- Extended length: 480mm (Stroke 250mm + retracted length)
- Body diameter: 50mm
- Mounting base: 100mm × 50mm (Front flange dimensions)
- Rod end thread: M16×1.5
- Protection rating: IP65 (Dust-tight & water jet resistant)
- Durability: ≥500,000 cycles (Under standard conditions)
Heavy-duty pneumatic cylinder specifically engineered for construction equipment applications. Features enhanced corrosion resistance through multi-layer surface treatment (chromate conversion coating + electrophoresis) and reinforced rod bearing structure. The dual-cushion design minimizes impact shock during full extension/retraction, critical for high-cycle earthmoving operations.
- Excavator bucket control mechanisms
- Concrete pump truck hydraulic compensators
- Crane outrigger positioning systems
- Pile driver impact dampening units
- Road roller vibration assemblies
Installation protocol:
Requires torque-controlled mounting (12-15 N·m for M8 mounting bolts).
For vertical installations exceeding 45° angle, mandatory use of rod-end support bracket (accessory code: BRK-40SAU).
Lubrication interval: 3,000 operating hours or 6 months (whichever comes first) using ISO VG32 hydraulic oil.
Critical note:
Not compatible with phosphate ester-based fluids.
Requires minimum 5μm filtration (40μm for emergency systems).
Avoid rapid pressure changes exceeding 0.3 MPa/sec to prevent seal extrusion.
| Property | Property Value |
|---|---|
| sku | B04-SAU40X250 |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.