Technical Parameters
|
Parameter Name |
Specific Specifications |
|
Compatible Models |
Komatsu 300 series excavators (including all batches/sub-models) |
|
Compatible Engine |
Komatsu SAA6D114 series (high-power water-cooled engine) |
|
Working Pressure |
≥38MPa (60% above SAE standard) |
|
Working Temperature Range |
-40℃~121℃ |
|
Single Hose Weight |
Approximately 1.5kg |
|
Hose Diameter Specifications |
Original factory standard size (precise matching for installation requirements) |
|
Connector Type |
Original factory standard sealed metal connector (M30×1.5 thread) |
|
Applicable Medium |
Excavator-specific engine oil, biodegradable hydraulic oil |
|
Pulse Life |
≥1 million cycles |
|
Execution Standard |
Exceeds ISO18752-AC/CC standard |
Material Specifications
Inner Tube:
Made of nitrile/chloroprene synthetic rubber, offering excellent resistance to oil corrosion and aging, compatible with biodegradable hydraulic fluids, and effectively preventing inner wall cracking and damage.
Reinforcement Layer:
Large diameter hoses feature a four-layer steel wire winding structure, while smaller diameter hoses utilize a high-density steel wire braided layer, significantly enhancing pressure resistance and structural stability, preventing expansion and deformation under high pressure.
Outer Tube:
Made of peel-resistant, highly wear-resistant, and weather-resistant synthetic rubber. Some specifications offer an optional UHMWPE ultra-wear-resistant layer, doubling the resistance to cutting and abrasion, suitable for complex outdoor working environments.
Connector Components:
Precisely machined from zinc-plated carbon steel, paired with hydrogenated nitrile seals, providing excellent sealing performance, secure connection, and rust and corrosion resistance, eliminating leakage risks.
Production Process
Inner Rubber Extrusion:
High-quality nitrile rubber is extruded to form a smooth, corrosion-resistant inner tube.
01
Steel Wire Braiding:
Precision braiding of high-tensile steel wires for pressure resistance.
02
Outer Rubber Coating:
Wear-resistant synthetic rubber layer applied for protection against abrasion.
03
Quality Testing:
Pressure testing, leak detection, and dimensional inspection to meet industry standards.
04
Application Fields
Widely used in small excavators for construction, landscaping, agricultural digging, municipal maintenance, and foundation engineering. Suitable for connecting hydraulic cylinders, pumps, and valves to ensure stable operation of lifting, digging, and rotating functions.
Services
Custom cut-to-length and fitting assembly services
OEM/ODM customization to match specific excavator models
12-month warranty and technical support
FAQ
Q: What is the maximum working pressure of these hoses?
A: Up to 42 MPa, suitable for high-pressure small excavator systems.
Q: Can the hoses be customized for non-standard excavator models?
A: Yes, we offer full OEM customization based on your drawings or samples.
Q: How to select the right hose size for my excavator?
A: Provide your excavator model or inner diameter requirements, and our team will recommend the optimal solution.
Q: Are the hoses resistant to oil and weathering?
A: Yes, the inner and outer rubber layers are oil-resistant and UV-stabilized for outdoor use.
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