Atlas Copco Construction Tools‘ HC 409 and 920 compactor attachments have FAG bearings, Permco motors and Lord shock mounts. Accepting a maximum hydraulic flow of 20 gallons per minute at 2,200 psi and weighing 900 pounds, the HC 409 delivers an 8,000-pound impulse force and produces 2,100 cycles per minute. Weighing 1,600 pounds, the HC 920 has an impulse force of 16,000 pounds and delivers 2,200 cycles per minute with a maximum hydraulic flow of 30 gallons per minute at 2,200 psi.
