Crawler hole drilling rig
The PH520T Series Crawler-Mounted Surface Down-the-Hole Drilling Rig is a new down-the-hole drilling rig developed to meet market demands. This product offers outstanding performance, flexible operation, comprehensive functionality, and broader adaptability, delivering high cost-effectiveness.
This product is widely applicable for rock drilling operations in various projects, including open-pit mining, foundation excavation for construction, water conservancy, power stations, transportation, and national defense construction. It can also drill specialized rock holes for purposes such as anchor holes, geological pressure measurement holes, and drainage holes.
Product Introduction
PH520T features a dual-motor rotary head and a multi-way valve with adjustable rotation speed, delivering a maximum rotation torque of 3800 N·m to meet the requirements for 76mm drill pipes and 180mm bore diameters. With a maximum rotation speed of 120 RPM, it satisfies the high-speed drilling demands of certain customers in soft rock formations. Additionally, the 520T series builds upon the original 520 model by incorporating a leveling function. Standard engineering tracks and a plunger motor enhance its climbing capability, ensuring greater stability and reliability. This model represents the highest specification within its class.
This series of drill rigs is a cost-effective down-the-hole drill introduced by Kaizhan Machinery. Featuring high specifications, comprehensive functionality, and a competitive market price, the machines have completed all necessary testing and are now in mass production.
Product Details
01. Control Console
The new hydraulic system features forward/reverse gears with speed settings, reducing auxiliary operation time. It meets diverse working condition requirements.
02. Travel Motor Track Frame
Utilizes engineering-grade travel motors with strong climbing capability and low failure rate.
03. Air Filter
Employs a three-stage filtration system: pre-filter, oil-bath air filter, and main air filter. This ensures reliable diesel engine operation in high-dust environments.
04. Dual Cycloid Motor Rotator
Equipped with a dual cycloid motor rotator, it delivers high rotational torque, high efficiency, and durability.
Product Specifications
| Drill Rod Type | φ76x3000mm |
| Drilling Diameter | φ90-180mm |
| Maximum Working Torque | 3800 N·m |
| Rotation Speed | 0-120 rpm |
| Thrust Force | 25 kN |
| Lifting Capacity | 50 kN |
| Propulsion Method | Hydraulic cylinder chain |
| Travel Speed | 3 km/h |
| Gradeability | 35° |
| Leveling Angle | +10 -10 |
| Transport Dimensions (L x W x H) | 5100x2324x2550 |
| Gross Weight | 4700 kg/5280 kg |
Company Strength
Puhua Energy Equipment Technology (Shandong) Co., Ltd., founded in 2003 in Jining, China, is a leading high-tech enterprise specializing in the research, development, and manufacturing of geological exploration equipment, intelligent mining systems, and new energy solutions. With strong R&D strength and advanced production technology, Puhua provides high-performance drilling rigs, intelligent underground transportation equipment, and customized engineering solutions for mining projects worldwide.
The company collaborates with more than 30 major mining enterprises, including Shandong Energy, Yintai Gold, and Shandong Gold, and its products are exported to over 120 countries and regions. Certified under ISO9001 and supported by an overseas R&D center in Canada, Puhua’s equipment performs reliably across extreme environments—from high-altitude plateaus to dry desert regions. Known for its innovation, operational efficiency, and superior reliability, Puhua has earned a solid reputation as a trusted global partner in the energy and mining industries.
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