Hard tube assembly
1500BAR High-pressure / High-strength material / Special heat treatment / Multi-layer steel wire winding / Self-tightening seal / Precision forging / 100% inspection / Quick connect/disconnect / Long-life design
Product Overview
The rigid hose assembly is a core component in hydraulic systems for securing pipe connections. It is manufactured from precision seamless steel tubing through CNC bending, cutting, and welding processes. The surface undergoes phosphating, galvanizing, or passivation treatments to deliver superior corrosion resistance and pressure-bearing capacity. Ideal for fixed internal piping, high-pressure oil lines, and hydraulic systems requiring rigid support.
Key Features
CNC pipe bending, angular accuracy ±0.1°, high repeatability
Multiple surface treatments including phosphating, galvanizing, and passivation to suit various environments.
Constructed from seamless steel pipe, with a working pressure exceeding 42 MPa.
Supports custom 3D bending design for complex spatial piping systems
Automatic TIG/laser welding for high-strength welds and reliable sealing.
3D scan reverse engineering: rapidly replicate complex piping systems
Technical Specifications
| Parameter Item | Specification Value |
|---|---|
| Outer Diameter Range | 6mm to 76mm |
| Wall thickness range | 1mm to 6mm |
| work stress | ≤4 2 MPa (depends on wall thickness and material) |
| Material Grade | 20#steel, 304stainless steel, 316L stainless steel |
| Surface Treatment | Phosphating, Zinc Plating, Passivation, Powder Coating |
| Bending Accuracy | Angle ±0.1°, Length ±0.5mm |
| Bend Radius | ≥2 times the outer diameter of the pipe (depending on material and wall thickness) |
| Welding Method | Argon arc welding, laser welding, resistance welding |
| Detection Method | 100% Airtightness Test, Eddy Current Inspection Optional |
| Execution Standard | GB/T 3639, DIN 2391, ISO 3304 |
| Packaging | Rust preventive oil + plastic cap + carton/wooden crate |
Use Cases
Hydraulic station piping
Rigid connection of high-pressure oil circuits inside the hydraulic power unit
Ship Hydraulic
Fixed hydraulic piping for ship deck machinery
Wind Power Equipment
Piping connections for the hydraulic pitch system of wind turbine generators
Metallurgical Equipment
Hydraulic lines for metallurgical equipment such as rolling mills and continuous casters
Aerospace
Rigid piping for aircraft ground hydraulic test equipment