Chocks

Manufacturer: Checkers, Manufacturer Part Number: AC3518-RP-S~Impact-absorbing. ~High load-bearing capacity. ~Resistant to aircraft fuels, oils, and lubricants. ~Will not rot, crack or splinter like wood. ~Standard with 1/2 in. x 24 in. replaceable polyester rope lanyard. ~18" Yellow Chock Body 24" X 1/2" Nylon Rope. ~Molded-in high-visibility yellow color. ~1 Each with Rubber Base.

Manufacturer: Checkers, Manufacturer Part Number: AC3518-S~Impact-absorbing. ~High load-bearing capacity. ~Resistant to aircraft fuels, oils, and lubricants. ~Will not rot, crack or splinter like wood. ~Standard with 1/2 in. x 24 in. replaceable polyester rope lanyard. ~18" Yellow Chock Body 24" X 1/2" Nylon Rope. ~Molded-in high-visibility yellow color. ~1 Each.

Manufacturer: Checkers, Manufacturer Part Number: AC6820-LR~Impact-absorbing. ~Weather and abrasion resistant. ~High load-bearing capacity. ~Resistant to aircraft fuels, oils, and lubricants. ~Will not rot, crack or splinter like wood. ~Rope-lock system. 6" X 8" X 20" Yellow Chock Body 36" X 5/8" Nylon Locking Rope. ~Molded-in high-visibility yellow color. ~1 Each with standard urethane base.

Manufacturer: Checkers, Manufacturer Part Number: AC6820-LR-HImpact-absorbing. Weather and abrasion resistant. High load-bearing capacity. Resistant to aircraft fuels, oils, and lubricants. Will not rot, crack or splinter like wood. Rope-lock system. 6" X 8" X 20" Yellow Chock Body 36" X 5/8" Nylon Locking Rope. Molded-in high-visibility yellow color. 1 Each with standard urethane base.

Manufacturer: Checkers, Manufacturer Part Number: AC6820-LR-RP~Impact-absorbing. ~Weather and abrasion resistant. ~High load-bearing capacity. ~Resistant to aircraft fuels, oils, and lubricants. ~Will not rot, crack or splinter like wood. ~Rope-lock system. ~6" X 8" X 20" Yellow Chock Body 36" X 5/8" Nylon Locking Rope. ~Molded-in high-visibility yellow color. ~1 Each with Rubber Pad.

Manufacturer: Checkers, Manufacturer Part Number: AC6820-LR-RP-HImpact-absorbing. Weather and abrasion resistant. High load-bearing capacity. Resistant to aircraft fuels, oils, and lubricants. Will not rot, crack or splinter like wood. Rope-lock system. 6" X 8" X 20" Yellow Chock Body 36" X 5/8" Nylon Locking Rope Handle. Molded-in high-visibility yellow color. 1 Each with Rubber Pad.

Manufacturer: Checkers, Manufacturer Part Number: AC3521-RP-S~Impact-absorbing. ~High load-bearing capacity. ~Resistant to aircraft fuels, oils, and lubricants. ~Will not rot, crack or splinter like wood. ~Standard with 1/2 in. x 24 in. replaceable polyester rope lanyard. ~21" Yellow Chock Body 24" X 1/2" Nylon Rope. ~Molded-in high-visibility yellow color. ~1 Each with Rubber Base.

Manufacturer: Checkers, Manufacturer Part Number: AC3521-S~Impact-absorbing. ~High load-bearing capacity. ~Resistant to aircraft fuels, oils, and lubricants. ~Will not rot, crack or splinter like wood. ~Standard with 1/2 in. x 24 in. replaceable polyester rope lanyard. ~21" Yellow Chock Body 24" X 1/2" Nylon Rope. ~Molded-in high-visibility yellow color. ~1 Each.

Manufacturer: Checkers, Manufacturer Part Number: AC6856-LRImpact-absorbing. Weather and abrasion resistant. High load-bearing capacity. Resistant to aircraft fuels, oils, and lubricants. Will not rot, crack or splinter like wood. Rope-lock system. 6.25" X 8" X 56" Yellow Chock Body 48" X 5/8" Nylon Locking Rope. Molded-in high-visibility yellow color. 1 Each, No Rubber Pad.

Manufacturer: Checkers, Manufacturer Part Number: AC6856-LR-RP~Impact-absorbing. ~Weather and abrasion resistant. ~High load-bearing capacity. ~Resistant to aircraft fuels, oils, and lubricants. ~Will not rot, crack or splinter like wood. ~Rope-lock system. ~6.25" X 8" X 56" Yellow Chock Body 48" X 5/8" Nylon Locking Rope. ~Molded-in high-visibility yellow color. ~1 Each with Rubber Pad.

Manufacturer: Checkers, Manufacturer Part Number: ACPAD-6820-RLength: 17.25", Width: 7.4", Height: .5", 5 lb. (2.3 kg), 1 Each. Color: Black.

Manufacturer: Checkers, Manufacturer Part Number: ACPAD-3512Length: 9", Width: 4.5", Height: .5", .75 lb. (.34 kg), 1 Each. Color: Black.

Manufacturer: Checkers, Manufacturer Part Number: ACPAD-3515Length: 12", Width: 4.5", Height: .5", 1.2 lb. (.5 kg), 1 Each. Color: Black.

Manufacturer: Checkers, Manufacturer Part Number: ACPAD-3518Length: 15", Width: 4.5", Height: .5", 1.5 lb. (.7 kg), 1 Each. Color: Black.

Manufacturer: Checkers, Manufacturer Part Number: ACPAD-3521Length: 18", Width: 4.5", Height: .5", 1.75 lb. (.8 kg), 1 Each. Color: Black.

Manufacturer: Checkers, Manufacturer Part Number: ACPAD-4614Length: 11.5", Width: 5.5", Height: .5", 2.1 lb. (1 kg), 1 Each. Color: Black.

Manufacturer: Checkers, Manufacturer Part Number: ACPAD-6856Length: 7.25", Width: 5.6", Height: .5", 1 lb. (.5 kg), 1 Each. Color: Black.

Manufacturer: Vestil, Manufacturer Part Number: SRC/FRCDouble Rail Chocks fit most standard size rails. Double sided flanges keep chocks on track. Hardened steel spurs, located on the bottom side of the chock, are used to maximize a positive grip. Handle projection 36" on flag chocks, 10" on non–flag chocks. Handle height is 14". The adjustable support legs are used to balance the Flag Rail Chocks. The Aluminum "Chock Your Wheels" sign is visible from both sides. Metal wheel chocks have a chain length of 30" on combo units. Steel construction.SPECIFICATIONS36" x 10" x 14" - 18 lbs.

Manufacturer: Checkers, Manufacturer Part Number: MC1900Rugged steel construction. Bracket has a durable primer finish. 36' (91.4 cm) Length Bracket Rod with 6" (15.2 cm) Mounting Plate. Weight: 16 lb. (7.3 kg). 1 Each.

Manufacturer: Checkers, Manufacturer Part Number: MCPAD12X2.5For MC1909 and MC3009, Weight: 1.5 lb. (.7 kg), Color: Black, 1 Each.

Manufacturer: Checkers, Manufacturer Part Number: MCPAD22.875X2.5For MC1911 and MC3011, Weight: 2 lb. (.9 kg), Color: Black, 1 Each.

Manufacturer: Checkers, Manufacturer Part Number: UC1500-6~Resistant to oils, fuels, and solvents. ~Easy-grip carrying handle. ~Eyebolt for ropes or chains. ~Length: 11.5 in. (29.24 cm), Width: 9 in. (22.9 cm), Height: 8.5 in. (21.6 cm). Weight: 6 lb. (2.7 kg) per single chock. ~Color: Orange, 1 Each.

Manufacturer: Vestil, Manufacturer Part Number: FRC-2Rail Chocks fit most standard size rails. Double sided flanges keep chocks on track. Hardened steel spurs, located on the bottom side of the chock, are used to maximize a positive grip. Handle projection 36" on flag chocks, 10" on non–flag chocks. Handle height is 14". The adjustable support legs are used to balance the Flag Rail Chocks. The Aluminum "Chock Your Wheels" sign is visible from both sides. Chain length is 30" on combo units. Steel construction.SPECIFICATIONS36" x 10" x 14" - 10 lbs.

Manufacturer: Checkers, Manufacturer Part Number: MC4011 The Checkers MC4011 Ultra-Class Mining Wheel Chock represents the pinnacle of safety innovation for the mining industry. This heavy-duty wheel chock is designed specifically for ultra-class mining vehicles, offering superior safety and durability for the largest haul trucks in the mining industry with a capacity to secure vehicles weighing up to 1,600,000 lbs (800 tons). As the lightest ultra-class mining chock available*, the MC4011 is 23% lighter than our previous version, weighing 27 lbs , which makes it significantly easier to lift and install on bumper mounts while meeting NIOSH guidelines for one-person lift above the shoulder. The ergonomic design features an external handle that's easier to reach and grip with gloves, along with an optimized center of gravity for easier carrying and installing. With dimensions of 17.5" x 14.5" x 16", the MC4011 is 7.5 inches shorter than other products on the market, further enhancing maneuverability. It has been rigorously tested on 10% uphill and downhill grades for maximum hold and is designed to meet specific wheel geometry, ensuring positive holding power for the heaviest mining trucks. Constructed from tough HDPE, this wheel chock is resistant to many oils, fuels, solvents, tears, abrasions, and extreme weather conditions. It meets OSHA and MSHA specifications, making it the only chock suitable for safe single-person placement and removal in ultra-class mining operations. Whether for open pit mines, quarries, or large-scale mining operations, the MC4011 addresses critical industry pain points including labor shortages, costly replacements due to corrosive environments, and worker injury risks. Checkers’ MC4011  helps mining operations improve efficiency and ROI while prioritizing worker safety, making it the smart choice for mining operations worldwide. Replacement handle and bracket are available separately. The MC4011 is also available in a non-bracket version - MC4011-NB - for vehicles that already include chock mounting equipment. Product Summary At 27 lbs, the lightest weight of any ultra-class mining chock on the market (as of February 2025) Ergonomic with easy grip handle and center of gravity Compact dimensions of 17.5" L x 14.5" W x 16" H - 7.5" shorter than competing products on the market Rated for vehicles with gross operating weight up to 1,600,000 lbs (800 tons) and tire sizes up to 165 inches in diameter The only ultra-class chock suitable for safe single-person placement and removal (as of February 2025)