Garden Tractor Solid PU Tire Line in Argentina

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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 a heavy-duty microcellular polyurethane tire molding workcell for a premier garden tractor manufacturer in Argentina, achieving high tear strength (45 kN/m) and complete puncture resistance across large 20-inch drive wheel assemblies. The turnkey delivery encompassed a high-output dual-component high-pressure dosing machine, heavy hydraulic multi-segment tire clamping fixtures, dynamic mold oil heating units, and integrated process control systems.

Prior to commissioning, the manufacturer purchased standard pneumatic agricultural drive tires. In Argentine citrus orchards and thorned estates, tires suffered frequent sidewall gashes from tree clippings and thorned vegetation, leaving commercial mowers immobilized and causing turf churn when punctured machines dragged rims. The client required an industrial manufacturing system capable of molding massive microcellular elastomer drive tires (20×10.00-8) directly onto welded heavy steel wheel rims, delivering aggressive traction tread lugs while maintaining 800 kg static load-bearing capacity without bead de-sealing.

Operating since September 2022 on a two-shift daily schedule across a 380 m² workshop, the workcell delivers consistent component repeatability. By implementing Haifeng's closed-loop Ratio Lock flow algorithms and multi-segment mold clamping, the client reliably manufactures heavy-duty flat-free turf drive tires complying with strict non-highway agricultural load standards.

Project Technical Specification Matrix:

Haifeng deployed a high-capacity reaction injection tire molding platform engineered for thick, deep-lug traction tire formulations:

1. High-Output Stoichiometric Dosing: Heavy-duty axial displacement pumps meter precursors at up to 45 kg/min with ±0.5% precision, filling multi-kilogram tire cavities in 4 seconds.
2. Radial Multi-Segment Tooling Clamps: Hydraulic clamping presses actuate 4-piece radial mold segments, cleanly releasing deep chevron tread lugs without tearing fresh polyurethane edges.
3. Dynamic Oil Thermal Balancing: High-capacity TCU skids circulate heated oil through mold jackets at 62°C (±0.8°C), ensuring uniform microcellular exotherm across 100mm thick tread blocks.
4. Clean Mechanical Needle Cut-Off: An L-shaped self-cleaning high-pressure mixing head executes instantaneous 0.3s mechanical shut-offs without chemical solvents, preserving tool tread definition.

Installation and commissioning: 20 days. Operator training: 4 days. Warranty: 1 year. Long-term spare parts and remote PLC diagnostic support are available.