NEW ZR255R ROTARY DRILLING RIG

NEW ZR255R ROTARY DRILLING RIG

Max. drilling diameter: 2000mm

Max. drilling depth: 70/56m

Max. output torque: 260kN.m

Rotary speed range: 6-26rpm

ADVANTAGE INTRODUCTION
    • The rear main winch with single-layer-rope drum and two gear box mechanism, which extends service life of the steel wire rope significantly.
    • High construction efficiency thanks to big flow main pump, multi-gear rotary drive, and two-speed crowd cylinder.
    • More stable structure and stronger bearing capacity thanks to the 5th generation rotary drive, large supporting angle of the mast cylinder, lower center of gravity, and reinforced chassis.
    • One key for folding cathead, fixed mast support. Equipment can be transferred easily and quickly.
    • Version 2.0 power matching and limit load control technology, working efficiency increased by 10%.
    • New generation cab with better vision. More comfortable operation, new electrical controlpanel.360-degree full view monitoring.
    • Options: Crowd winch model ZR255D,spin-off, auto-lubrication.

High efficiency: full set of imported hydraulic system,2*160 ml/r  main pump; imported Cummins engine from the United States; rotary drive with multi shift working model (standard, soil, strong weathered rock, rock, soil discharge);crowd cylinder ( high speed+ low speed) for lifting and lowering rotary head

More stable & reliable: 5th generation rotary drive; Zoomlion’s self-made Kelly bar; main winch with single-layer-rope drum and twin reducers mechanism

More comfortable, safe and intelligent: new generation cab; optimized control panel & monitor screen; “one button for soil-discharge, one button for hole-cleaning”; one key for folding cathead.

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