1. Structural Design: Simple and efficient, with strong pertinence to core components
• Integrated design spiral blades: The core is a continuous spiral blade, and the blade diameter and pitch can be customized according to the working conditions (such as small diameter blades for shallow hole drilling large diameter for deep hole), with dual functions of drilling and cutting and slag discharge and transportation, without the need for additional slag discharge equipment, and the structure is compact
• Modular drill bit adaptation: Different types of drill bits can be replaced (such as sharp tooth drill bits for hard soil layers, flat bottom drill bits for soft soil layers alloy drill bits for weathered rock layers), and the equipment is universal through quick replacement to meet the needs of multiple working conditions.
• Good stability of the body: It uses track or crawler chassis, with a large ground contact area and low ground pressure, it is not easy to sink when working on soft ground, and it can be leveled hydraulic outriggers, ensuring the verticality of drilling.
2. Job Characteristics: Environmental protection and high efficiency, convenient and controllable operation
• Environmental protection without slurry: During drilling, the slag is continuously discharged to the ground through the blade groove of the spiral blade, without the need for mud to protect the wall, avoiding mud, especially suitable for urban construction, municipal engineering and other scenarios with high environmental protection requirements.
• High drilling efficiency: Rotary cutting synchronous slag discharge integrated operation reducing the interval between processes, and the drilling speed can reach 0.5-1.5m/min in conventional strata such as cohesive soil and sandy soil, which far beyond the traditional impact drilling machine.
• Simple and controllable operation: Hydraulic or motor drive is adopted, equipped with precise control system, which can adjust the drilling speed rotation speed and feed rate in real time, easy for beginners to operate, and can accurately control the hole depth, hole diameter and verticality (error ≤ 1%).
3. Performance Advantages: Wide adaptability, construction quality is guaranteed
• Strong stratum adaptability: Adapt to a variety of strata, such as cohesive soil sandy soil, silty soil, weathered rock layers, etc., and can meet the construction of shallow holes (≤10m) and medium and deep holes (1-30m) by replacing drill bits and adjusting blade parameters, covering the application scope of foundation piles, foundation pit support, geological exploration and other scenarios.
• Excellent quality: The spiral blade has a squeezing effect on the hole wall, which can enhance the stability of the hole wall and reduce the risk of hole collapse; and the hole diameter is, the hole wall is smooth, and it provides a good foundation for the installation of reinforcement cage and concrete pouring.
• Low energy consumption and maintenance cost: Compared with the perc drill, the driving power demand is low (mostly 15-50 kW), and the energy consumption is saved by more than 30%; the core components the spiral blade and drill bit wear slowly, and can be lubricated regularly, and the annual maintenance cost is only 60%-80% of the same type of equipment
