Parker’s patented Crown Bumper was designed to replace the existing wooden bumpers found on many drilling rigs. The specially designed elastomeric bumper pads absorb up to 60% of the kinetic energy created by a post breaking bump of the crown by the traveling blocks.

The Crown Bumper system has been tested to withstand a 25,000 lb. “bump” at 3.68 ft./sec. with no permanent deflection. It was also tested to withstand a 56,000 lb. “bump” at 2.94 ft./sec. with only 1/8” permanent deflection.

Features of the Crown Bumper include:
• Capable of being installed without welding if desired to reduce down time
• Complete with high-strength netting for added safety
• Maintenance-free, extended life elastomer bumper pads
• Each assembly individually serialized for traceability per API requirement
• Two-part epoxy coated metal for corrosion resistance

Typical Configuration:
• Three bars and three elastomer pad assembly
• Standard bar length 30" to 40"
• Modifications available to accommodate attachment span requirements

Standard Materials:
Steel: Three bar (standard) galvanized A3 ERW Type F square steel tubing
Elastomer pads: NR/NBR combination; Temp range -50F to 250F
Nylon safety net: Triple strand nylon netting (not flame retardant) with polypropylene debris net and safety snap hooks

Typical applications:
• Oil and gas drilling rig crown