Steel Spiral Hose
Product Overview
Our steel spiral hose is engineered for the most demanding high-pressure hydraulic and industrial applications. Constructed with a robust inner tube of synthetic rubber, multiple layers of high-tensile steel wire spirals for reinforcement, and a durable outer cover resistant to abrasion, ozone, and weathering, this hose delivers unmatched performance in extreme conditions. Designed to handle pressures up to 6,000 PSI and beyond, the steel spiral hose ensures reliable fluid transfer in hydraulic systems, preventing bursts and leaks that can lead to costly downtime.
Available in a wide range of diameters from 1/4" to 2", the steel spiral hose meets international standards such as SAE 100R9, EN 856 R12, and DIN 20022-4SP, making it a preferred choice for global B2B suppliers in construction, mining, and manufacturing. Its flexibility, even at low temperatures down to -40°C, combined with superior impulse resistance, positions the steel spiral hose as a critical component for heavy machinery and mobile equipment. Whether you're powering excavators, cranes, or injection molding machines, this hose provides the strength and longevity needed for continuous operation.
Key Features
- High-Pressure Reinforcement: Four or six layers of spiraled steel wire provide exceptional burst pressure resistance, far exceeding braided hose alternatives.
- Superior Flexibility: Maintains bend radius performance under full pressure, reducing fatigue and extending service life in tight installation spaces.
- Temperature Resilience: Operates reliably from -40°C to +120°C, suitable for arctic mining operations or hot oil transfer systems.
- Abrasion-Resistant Cover: Black synthetic rubber outer layer with MSHA approval for mining environments, resisting cuts, tears, and chemical exposure.
- Impulse Resistance: Exceeds 400,000 cycles at maximum working pressure, ensuring durability in dynamic hydraulic circuits.
- Lightweight Design: Despite heavy-duty construction, the steel spiral hose offers a favorable strength-to-weight ratio for easier handling and installation.
- Custom Fitting Compatibility: Ends crimpable with standard steel spiral hose fittings, supporting quick assembly and field repairs.
Technical Specifications
| DN (inch) | ID (mm) | OD (mm) | Working Pressure (MPa) | Burst Pressure (MPa) | Bend Radius (mm) | Weight (kg/m) | Temperature Range (°C) |
|---|---|---|---|---|---|---|---|
| 1/4" | 6.4 | 15.7 | 42.1 | 168.4 | 70 | 0.55 | -40 to +120 |
| 3/8" | 9.5 | 20.6 | 38.0 | 152.0 | 90 | 0.75 | -40 to +120 |
| 1/2" | 12.7 | 24.4 | 35.0 | 140.0 | 120 | 1.05 | -40 to +120 |
| 3/4" | 19.0 | 32.6 | 32.5 | 130.0 | 160 | 1.60 | -40 to +120 |
| 1" | 25.4 | 39.7 | 27.5 | 110.0 | 200 | 2.30 | -40 to +120 |
| 1-1/4" | 31.5 | 47.2 | 21.0 | 84.0 | 240 | 3.00 | -40 to +120 |
| 1-1/2" | 38.1 | 54.4 | 18.0 | 72.0 | 280 | 3.80 | -40 to +120 |
| 2" | 50.8 | 68.5 | 15.0 | 60.0 | 360 | 5.50 | -40 to +120 |
Note: Specifications conform to SAE 100R9/100R12 standards. Custom sizes and pressures available upon request. All values are approximate and subject to manufacturing tolerances.
Application Scenarios
The steel spiral hose excels in high-pressure environments where reliability is non-negotiable. In construction and earthmoving, it powers hydraulic cylinders on excavators, bulldozers, and wheel loaders, handling the rigors of rough terrain and constant flexing. For mining operations, its MSHA-approved cover withstands abrasive dust and sharp rocks in underground and surface extractions, ensuring uninterrupted hydraulic fluid delivery to drills and haul trucks.
In the oil and gas sector, the steel spiral hose manages high-temperature petrochemical fluids in drilling rigs and refineries, resisting degradation from hydrocarbons and additives. Industrial manufacturing benefits from its use in injection molding machines, presses, and CNC systems, where precise pressure control prevents production halts. Additionally, agricultural and forestry equipment like tractors and harvesters rely on the steel spiral hose for steering and lifting functions in variable weather conditions.
Marine applications, including hydraulic winches on offshore platforms, leverage its corrosion resistance, while material handling in forklifts and cranes demands its superior load-bearing capacity. From mobile hydraulics to stationary plants, the steel spiral hose adapts seamlessly, minimizing maintenance and maximizing uptime across diverse global industries.
Advantages
Choosing our steel spiral hose offers distinct advantages over conventional braided or fabric-reinforced hoses. Its multi-spiral steel wire construction delivers 4x the burst strength and superior impulse life, reducing replacement frequency by up to 50% in high-cycle applications. Unlike single-braided hoses, the steel spiral hose maintains full flexibility without kinking, even after thousands of bends, which is critical for routing in compact machinery compartments.
The hose's enhanced abrasion resistance extends service life in harsh environments, with test data showing 30% less cover wear compared to competitors. Environmentally robust, it complies with RoHS and REACH regulations, ensuring safe disposal and minimal ecological impact. Economically, the steel spiral hose lowers total ownership costs through reduced downtime, fewer fittings failures, and compatibility with reusable crimp connections.
Furthermore, its low volumetric expansion under pressure ensures precise actuator control, vital for servo-hydraulic systems. With proven performance in temperatures exceeding standard limits, the steel spiral hose outperforms in arctic drilling or desert pumping, providing peace of mind for international projects.
Why Choose Us
As a leading manufacturer of hydraulic components, we specialize in premium steel spiral hoses backed by decades of engineering expertise. Our production facilities employ state-of-the-art extrusion and spiral winding technology, ensuring consistent quality across every meter. All steel spiral hoses undergo rigorous testing—including hydrostatic burst, impulse cycling, and adhesion checks—to exceed ISO 6802 and SAE J343 standards.
We hold certifications from ABS, DNV, and Lloyd's Register, making our steel spiral hose ideal for certified marine and offshore use. With a global supply chain, we offer short lead times, bulk customization, and technical support tailored to B2B needs. Our commitment to innovation includes ongoing R&D for even higher pressure ratings and eco-friendly compounds, positioning us as your trusted partner for reliable steel spiral hose solutions.
FAQ
What is the difference between steel spiral hose and steel braided hose?
Steel spiral hose uses continuous spiral windings of steel wire for multi-layer reinforcement, offering higher pressure ratings and better flexibility than braided hoses, which use interwoven braids suitable for lower pressures.
Can the steel spiral hose be used with petroleum-based fluids?
Yes, the inner tube is formulated for compatibility with petroleum, synthetic, and water-based hydraulic fluids, including HFC and HFD types, per manufacturer guidelines.
What is the maximum length available for steel spiral hose?
Standard lengths up to 100 meters; longer assemblies possible with bulk hose and custom fittings to maintain performance.
Is the steel spiral hose suitable for suction applications?
Primarily designed for pressure lines, but select models handle low-vacuum suction; consult specs for collapse resistance.
How do I properly store steel spiral hose?
Store in a cool, dry place away from direct sunlight, coiled loosely on reels, and off the ground to prevent cover degradation.
Does it meet food-grade or sanitary standards?
Standard models are industrial-grade; contact us for specialized FDA-compliant variants if required for food processing.