SAE 100 R15 Hydraulic Hose - Ultra High Pressure Steel Wire Spiral Hose for Extreme Applications

Hose Construction
Inner tube: oil resistant synthetic rubber
Reinforcement: four or six high tensile steel wire spiral
Cover: oil, abrasion, weather resistant synthetic rubber
Working Temp.: -40℃ up to +121℃

Model:
SAE 100 R15

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Description

FAQ

Designed for heavy-duty industrial procurement specialists, mining equipment operators, and construction machinery manufacturers, our SAE 100 R15 hydraulic hose sets the industry benchmark for ultra-high pressure performance in the most demanding operating environments. Engineered to meet strict SAE 100 R15 specifications, this hose features a premium oil-resistant synthetic rubber inner tube, four or six layers of high-tensile steel wire spiral reinforcement, and a rugged oil, abrasion, and weather-resistant synthetic rubber cover. With a wide operating temperature range of -40℃ up to +121℃, it delivers consistent, reliable performance in extreme conditions, maintaining a constant ultra-high working pressure across all available sizes to support mission-critical hydraulic systems.

Fiber weaving	Steel wire winding	Wire braiding machine
Friction testing machine	High-speed joint venture	Storehouse

Core Features & Technical Advantages

Constant Ultra-High Pressure Rating Across All Sizes

Unlike standard hydraulic hoses that experience significant pressure drop-offs as inner diameter increases, our ultra high pressure steel wire spiral hydraulic hose maintains a uniform working pressure of 420 bar (6090 PSI) across all sizes from 3/8" to 1-1/2". It adheres to a strict 4:1 safety ratio, with a proof pressure of 840 bar and burst pressure of 1680 bar, ensuring unmatched structural integrity even during unexpected pressure spikes. This consistent pressure capability eliminates the need for over-engineering hose selections for different bore sizes, streamlining procurement and inventory management for industrial users.

Superior Surge & Flex Resistance with Spiral Reinforcement

The multi-layer high-tensile steel wire spiral construction of this 420 bar hydraulic hose for extreme applications delivers far superior resistance to pressure surges and repeated flexing compared to traditional braided hose designs. This makes it ideal for dynamic hydraulic systems subject to frequent impulse loads and continuous movement. The premium rubber compounds used in the inner tube and outer cover provide exceptional compatibility with petroleum-based hydraulic fluids, while resisting wear, ozone degradation, and environmental damage in outdoor, heavy-use settings.

Optimized Routing & Installation Design

Engineered for practicality in heavy equipment setups, this surge resistant hydraulic hose for construction equipment features size-specific minimum bend radii and weight ratings that balance flexibility with structural strength. Ranging from a 150 mm minimum bend radius for 3/8" sizes up to 530 mm for 1-1/2" sizes, and a weight range of 0.8 kg/m to 5.6 kg/m, it supports straightforward routing and installation, minimizing stress on the reinforcement layers during both setup and operation to extend service life.

Applications & Industry Use Cases

This SAE 100 R15 hydraulic hose is purpose-built for very high pressure applications subject to frequent surge or flexing. Primary use cases include heavy construction equipment such as excavators, loaders, and bulldozers, underground and surface mining machinery, high-performance industrial hydraulic systems, and hydraulic power units operating in extreme conditions. It is the preferred choice for any hydraulic system where consistent ultra-high pressure, surge resistance, and long-term durability are non-negotiable requirements.

Detailed Technical Specifications

Inside Diameter (inch)	Inside Diameter (mm)	Reinforcement Diameter (mm)	Outside Diameter (mm)	Working Pressure (psi)	Working Pressure (bar)	Proof Pressure (bar)	Burst Pressure (bar)	Min. Bend Radius (mm)	Weight (kg/m)
3/8	9.3-10.1	20.3	23.3	6090	420	840	1680	150	0.8
1/2	12.3-13.5	24	26.8	6090	420	840	1680	200	0.95
3/4	18.6-19.8	32.9	36.1	6090	420	840	1680	265	1.85
1	25.0-26.4	38.9	42.9	6090	420	840	1680	330	2.9
1-1/4	31.4-33.0	48.4	51.5	6090	420	840	1680	445	4.2
1-1/2	37.7-39.3	56.3	59.6	6090	420	840	1680	530	5.6

FAQ

Q1:What allows the SAE 100R15 hose to maintain constant ultra-high pressure across all sizes?

A1:

The hose features four or six layers of high-tensile steel wire spiral reinforcement wound tightly around an oil-resistant synthetic rubber inner tube, with an oil/abrasion/weather-resistant cover. This multi-spiral design enables a constant working pressure of 420 bar / 6090 PSI from 3/8" to 1-1/2" sizes, along with proof pressure at 840 bar and burst pressure at 1680 bar (4:1 safety ratio)—providing uniform extreme pressure capability for demanding applications in mining or construction equipment.

Q2:How does the multi-spiral reinforcement handle surge and flexing in extreme applications?

A2:

The four or six high-tensile steel wire spirals offer outstanding resistance to pressure surges and repeated flexing, far superior to braided constructions in high-impulse scenarios. With a consistent 4:1 burst safety factor and robust temperature range (-40°C to +121°C), the hose reliably conveys petroleum-based hydraulic fluids in very high-pressure systems subject to dynamic loading, such as heavy construction machinery or mining operations.

Q3:What role does the constant pressure rating play in large-size high-performance systems?

A3:

The constant 420 bar / 6090 PSI working pressure across sizes (3/8" to 1-1/2") allows large-bore configurations to deliver high flow rates at ultra-high pressure without pressure drop-off common in other hoses. This supports efficient fluid transfer in high-performance industrial or mining equipment, where larger diameters are needed for volume while extreme pressure and surge resistance remain critical.

Q4:How do bend radius and weight considerations affect installation in heavy-duty setups?

A4:

Minimum bend radius scales with size: 150 mm for 3/8", 200 mm for 1/2", up to 530 mm for 1-1/2". Weight per meter also increases: 0.8 kg/m for 3/8", 2.9 kg/m for 1", up to 5.6 kg/m for 1-1/2". These values require planning for ample routing space in large equipment to avoid stressing the spiral layers, while the hose's robust construction ensures durability during installation and operation in surge/flexing environments.