Hard rock roadheaders are the world’s most advanced full-face large-scale tunnel construction machinery capable of comprehensive activities as excavating tunneling, loading, slag transportation, supporting and protecting the cave wall in one go.
Roadheader is working continuously underground, and will meet harsh conditions of severe vibration, large lateral loads, complex gravel environments, poor heat dissipation conditions and difficult maintenance conditions. Once the tunnel boring machine fails, it will bring huge losses to the construction company. All these raise high requirements for structural fatigue resistance, coating impact and corrosion resistance, and the seal structure anti-contamination performance.
During the past years, Haite is doing intensive research based on the above requirement and achieved great results: Nickel-chromium coating with strong impact and corrosion resistance, copper alloy overlay guiding bush can bear high lateral force. In order to ensure the reliability of the hydraulic cylinder structure, Finite Element Method (FEM) is adopted check and verify structure parts static load and fatigue strength, improving the safety factor and fatigue strength of critical parts.
Haite boot hydraulic cylinders for roadheaders featuring high fatigue strength, excellent corrosion resistant coating, and superior anti-contamination sealing structure is able to handle long-term underground working harsh conditions of severe vibration, large lateral loads, complex gravel environments, poor heat dissipation conditions and difficult maintenance conditions.
FAQ
Q1: Are you a trading company or manufacturer?
A1: We are the manufacturer with Exporting License.
Q2: How long have you been in Hydraulic Cylinder industry?
A2: Since 1992, we start manufacturing Hydraulic Cylinder.
Q3: How long is your warranty period?
A3: We offer 13 months warranty period after on board.
Q4: How long does it take to process orders?
A4: It usually takes 15-30 days to process.
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