Mining Equipment Solid PU Tire Line in Russia

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Project reference basis. Figures and configuration details are reported in the supplied project brief. They are reference values for the stated application, rather than verified acceptance results or a guarantee for another installation. Confirm the source records, material, tooling, operating schedule and test method when assessing a comparable project.

Haifeng successfully engineered and commissioned an industrial-scale off-road polyurethane tire molding line for a premier underground mining equipment manufacturer in Russia, achieving a 12-ton single-wheel load rating while completely eliminating explosive tire blowouts on underground rock haulage routes. The turnkey delivery encompassed an extreme-output dual-component dosing machine, heavy 150-ton multi-segment hydraulic tire presses, dynamic oil heating units, and automated overhead crane handling manipulators.

Prior to commissioning, mining operators using the customer's underground diesel loaders suffered catastrophic tire failures. Razor-sharp blasted granite shards sliced heavy pneumatic OTR tires under massive breakout loads, causing hazardous tire explosions, equipment immobilization in narrow stopes, and extensive production downtime. The client required an industrial chemical molding solution capable of casting massive 65kg elastomeric polyurethane treads directly onto heavy-duty cast steel rims, delivering extreme rock chip resistance and unyielding load capacity across freezing Siberian mining conditions.

Operating since April 2022 on a two-shift daily schedule across a 500 m² workshop, the workcell delivers consistent component repeatability. By implementing Haifeng's closed-loop Ratio Lock flow algorithms and high-tonnage hydraulic mold clamping, the client reliably manufactures indestructible, blowout-free mining loader tires that have completely eradicated tire-related mining stoppages.

Project Technical Specification Matrix:

Haifeng deployed an industrial reaction injection tire workcell engineered for massive, high-load off-road wheel assemblies:

1. Heavy Rim Induction Preheating: Heavy cast steel wheel hubs are blasted to Sa 2.5 and induction-heated to 75°C, ensuring a permanent chemical bond with high interfacial peel strength.
2. Extreme-Output Stoichiometric Dosing: Heavy-duty axial displacement pumps meter tough precursors at up to 80 kg/min with ±0.5% precision, filling a 65kg giant cavity in 50 seconds.
3. 150-Ton Multi-Segment Clamping: Heavy hydraulic presses close 6-segment radial tooling firmly against internal pressures, maintaining deep rock-grip tread lugs without flash lines.
4. Dynamic Oil Temperature Balancing: Multi-zone TCU skids circulate heated oil through the mold jackets at 68°C (±0.8°C), ensuring uniform crosslinking through the 140mm thick elastomeric body.

Installation and commissioning: 26 days. Operator training: 5 days. Warranty: 1 year. Long-term spare parts and remote PLC diagnostic support are available.