CZM designed its new CR25 hydraulic crawler drill as the ideal response to the micropile market.
A 310 hp Cummins B6.7 engine paired with a power management system (PMS) and an optimized hydraulic system delivers the ideal use of engine power, which in turn reduces fuel consumption by up to 30 per cent and ensures high productivity.
The servo-assisted proportional hydraulic circuit and the high hydraulic oil flow allow for flexibility when installing different types of rotary heads and rotary drifters, including double rotary.
During the design phase, CZM focused on the crawler drill’s stability during translation, the drilling phase and during the execution of tie-backs with the mast transversal to the undercarriage.
To ensure safety and maneuverability, CSM designed the CR25 with over-sized structural parts and telescopic tracks that extend from 2.5 metres to 3.4 metres.
Stability is even guaranteed with lattice extensions for the execution of Jet Grouting injections for useful depths of 30 metres during translation, positioning and operation movements.
In addition to the CR25’s larger dimensions, all parts are made in high strength Weldox steel. As well, double boom cylinders ensure safety and efficiency in more challenging articulation positions.
CR25 specs:
- Standard rotary torque: 26.600 ft. lbs.
- Rotary speed: 82 to 168 rpms
- Single Pass Stroke: 10.5 metres
- Feed/extraction force: 32,800 ft. lbs.
- Operating weight: 28,300 kg
The drill’s mast is modular and built with Weldox steel to ensure safe operation in all working positions.
An easy to modulate, crowd-pull-back system is integrated into the base mast and has a maximum pull-back force of 18 tonnes.
Sliding Clamps with 1-metre stroke and pull-back force of 20 tonnes can install double or triple clamps with a maximum diameter of 45 cm.
More news from CZM:
The machine is managed entirely by the latest generation Radio Command that includes a 28-cm colour touchscreen display.
The system allows the operator to manage complete control of the machine, including telematics, fault diagnosis, speed customization, active security, passive safety and real-time remote control.
