Ultra Class Mining Chock MC4011 Checkers
Art. no: MC4011
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Product description
Checkers MC4011 wheel chock is designed specifically for ultra class mining vehicles. If offers superior safety and durability for the largest haul trucks in the mining industry, with a capacity to secure vehicles weighing up to 800 tons and tire sizes up to 419 cm in diameter. It complies with MSHA and OSHA regulations, providing peace of mind in high-risk environments.
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Overview
Product features
- Designed for vehicles up to 1,600,000 lbs (800 tons) and tire sizes up to 165 inches (419 cm) in diameter.
- High-visibility yellow color for improved visibility in low-light conditions.
- Made from high-density polyethylene (HDPE) for chemical resistance and structural integrity, resistant to oils, fuels, solvents, and extreme weather conditions.
- Compact size and lightweight design for easy transport and positioning.
- Meets NIOSH one-person lift requirements for safe lifting above shoulder height with weighing less than 30 lbs (24% lighter than industry standards) and shorter length for easy carrying without dragging on the ground,
- Can be used with or without mounting brackets, suitable for inclines and uneven terrain.
- Complies with MSHA and OSHA regulations.
Product description
Checkers MC4011 Ultra-Class Wheel Chock is a high-performance safety solution designed for ultra-class mining vehicles, offering unmatched safety, ergonomic design, and durability. Engineered to meet MSHA and OSHA standards, it securely immobilizes vehicles weighing up to 1,600,000 lbs (800 tons) with tire sizes up to 419 cm in diameter, preventing accidental movement and reducing downtime. Its high-visibility yellow color enhances safety in low-light conditions. Weighing less than 30 lbs (24% lighter than industry standards), it features an ergonomic handle and compact design for easy handling, meeting NIOSH one-person lift requirements. Constructed from high-density polyethylene (HDPE), it withstands harsh mining environments, resisting chemicals, extreme weather, and wear with replaceable anti-slip pads. Rated for ultra-class vehicles, it ensures maximum holding power under extreme loads. Versatile and practical, it can be used with or without mounting brackets, improving operational efficiency and compliance. The MC4011 combines superior safety, ergonomics, and durability, making it the ultimate choice for securing heavy mining vehicles while enhancing ROI and operational safety.
Documentation & Video
- checkers-m-c-4011-ultra-class-mining-chock-specification-176403
- checkers-m-c-4011-specification-de-176404
- checkers-m-c-4011-ultra-class-mining-chock-specification-english-gb-176405
- checkers-m-c-4011-specification-es-176406
- checkers-m-c-4011-specification-fr-176407
- checkers-m-c-4011-specification-it-176408
- checkers-m-c-4011-specification-nl-176409
- checkers-m-c-4011-specification-pt-176410
- checkers-m-c-4011-specification-zh-176411
FAQ
Does the MC4011 require any special maintenance?
The MC4011 requires little to no maintenance, but regular visual inspections for cracking, chipping, or other deterioration are recommended.
Is the MC4011 resistant to chemicals commonly found in mining environments?
Yes, the MC4011 is resistant to oils, fuels, and solvents.
Is the MC4011 suitable for use on different grades or slopes?
Yes, but proper placement is crucial. On downhill grades, chock the front tires; on uphill grades, chock the rear tires; on level ground, chock both sides of the tire.
Can the MC4011 be secured or tethered?
Yes, it includes mounting brackets.
Does the MC4011 meet MSHA specifications?
Yes, the MC4011 meets MSHA specifications, making it suitable for use in the mining industry.
How should the MC4011 be positioned against the tire?
The chock should be placed snugly against the tire tread, centered and squared to the tire.
What material is the MC4011 wheel chock made from?
Like the MC3011, the MC4011 is constructed from tough, weather-resistant polyurethane.
How many MC4011 wheel chocks should be used for ultra class haul trucks?
A minimum of four MC4011 wheel chocks must be used for gross vehicle operating weights from 855,000 to 1,600,000 lbs.
How does the MC4011 perform in extreme weather conditions?
The polyurethane construction makes it weather-resistant and capable of withstanding harsh elements, including heat, cold, and water.
What is the maximum tire size the MC4011 wheel chock can accommodate?
The MC4011 wheel chock is designed for tire sizes up to 165 inches (419.1 cm) in diameter, similar to the MC3011.
What is the maximum gross vehicle operating weight for the MC4011?
The MC4011 is rated for vehicles with a gross operating weight up to 1,600,000 lbs (725,748 kg) or payloads up to 400 tons.
es||Does the MC4011 require any special maintenance?
The MC4011 requires little to no maintenance, but regular visual inspections for cracking, chipping, or other deterioration are recommended.
Technical Specifications
General specifications
| High Hazard Seismic Zone | No |
|---|---|
| Material | UV-stabilized polyurethane |
| Material Group | Polyurethane |
| Process | Injection Molding |


