Checkers mc3012 Heavy-duty Wheel Chock 142 Inch Tire

Product Description

The CHECKERS mc3012 is a heavy-duty polyurethane wheel chock engineered for large ground vehicles operating in demanding industrial environments. Built from lightweight yet highly durable polyurethane, this chock features an expanded base footprint that increases contact stability under extreme load conditions. It is rated for mine haul trucks with tire diameters up to 142 inches and gross vehicle operating weights up to 855,000 pounds. The mc3012 supports a maximum payload rating of 240 tons and is designed specifically for normal haul road grades. Safety managers, equipment operators, and site supervisors working in mining and heavy construction rely on this chock to secure stationary equipment.

The mc3012 is intended for use with very large off-highway vehicles including mine haul trucks, loaders, and cranes. It is specifically sized for tire diameters up to 142 inches, making it appropriate for the heaviest haul trucks found on active mine sites and large-scale construction projects. The chock is designed for use on normal haul road grades, not on steep or non-standard inclines. Its polyurethane construction resists the abrasion and impact typical of mine and heavy construction environments.

Key Features

• Rated for tire diameters up to 142 inches for mine haul truck applications
• Supports gross vehicle operating weights up to 855,000 pounds
• Maximum rated payload of 240 tons
• Wider base design increases ground contact and stability under load
• Lightweight polyurethane construction reduces handling effort during placement and removal
• Designed for normal haul road grade conditions

Compatibility

Designed for mine haul trucks, loaders, and cranes with tire diameters up to 142 inches and gross vehicle operating weights up to 855,000 pounds on normal haul road grades.

Installation Notes

Wheel chocks should be placed by qualified site personnel following applicable worksite safety procedures and equipment manufacturer guidelines. Always chock tires on level or approved grade surfaces only — the mc3012 is rated for normal haul road grades and is not intended for steep or non-standard inclines. Position the chock firmly against the tire before any maintenance, fueling, or loading operation begins. Remove the chock only after the operator is seated and the vehicle is ready to move.

Technical Specifications

• Material: Polyurethane
• Maximum Tire Diameter: 142 inches
• Maximum Gross Vehicle Operating Weight: 855,000 pounds
• Maximum Rated Payload: 240 tons
• Designed Grade: Normal haul road grades

Standard Information

• Brand: CHECKERS
• Manufacturer Part Number: mc3012