FAQ
Q1: What is the advantage of multi-spiral wire reinforcement in large-diameter SAE 100R17 hoses?
A1:
The multi-spiral (typically 4 or 6 layers) high-tensile steel wire reinforcement provides superior volumetric stability, exceptional impulse resistance, and extreme pressure capability in larger diameters. This design excels where braided hoses would fail under high cyclic loading or pressure, making the hose ideal for heavy-duty applications such as large mining excavators, forestry harvesters, off-road dump trucks, and industrial presses requiring reliable extreme high-pressure performance with petroleum-based hydraulic fluids.
Q2:How do the pressure ratings support extreme high-pressure demands in large-diameter sizes?
A2:
The SAE 100R17 large-diameter configuration delivers very high working pressures (typically 210–350 bar / 3045–5075 PSI depending on exact size), with a consistent 4:1 burst pressure safety ratio and high proof pressure tolerance. The multi-spiral construction ensures these ratings hold under dynamic loads and pressure spikes common in heavy construction or mining equipment, providing a strong safety margin for large-flow, extreme-pressure hydraulic circuits.
Q3:Why is the SAE 100R17 multi-spiral hose suitable for large-diameter extreme pressure applications?
A3:
Unlike standard braided hoses, the multi-spiral wire design in larger diameters (e.g., 1"–2" and above) maintains tight control over expansion and fatigue while offering better flexibility than rigid alternatives. This allows high flow rates at extreme pressures without excessive weight or stiffness, making it well-suited for heavy machinery in mining, construction, and forestry where large-volume, high-pressure fluid transfer is critical.
Q4:What customization options are available for this large-diameter multi-spiral hose?
A4:
Special specifications can be developed according to customer needs, including adjustments to diameter (large sizes), length, spiral layers, cover compounds for enhanced abrasion or chemical resistance, or fittings while preserving SAE 100R17 compliance and compatibility with standards like GB, DIN, RMA, AS, JIS, and SABS. This enables precise tailoring for unique extreme high-pressure hydraulic setups in large equipment or specialized industrial systems operating from -40°C to +121°C.
