down the hole drill rig
Suitable for drilling medium-to-deep blast holes in open-pit projects such as mining, quarrying, railways, transportation, water conservancy, building materials, military, and photovoltaic drilling, enabling highly efficient rock drilling operations. It is also widely used for drilling operations in anchor bolt support, channel excavation, and sewer engineering.
Product Introduction
The PH550 Series Solar-Powered Surface-Mounted Down-The-Hole Drilling Rig is a newly developed down-the-hole drilling rig designed 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, water conservancy, power stations, transportation, and national defense construction. It can also drill specialized rock holes for purposes such as anchor holes, geotechnical pressure measurement holes, and drainage holes.
Product Details
01. Drill Arm
The drill arm features an innovative design with easy adjustment, significantly expanding the drilling range for low-level horizontal holes. Minimum horizontal drilling height: 300mm.
02. Winch
Enhanced pulling force ensures safety during slope operations.
03. Dual Cycloid Motor Rotator
Equipped with a dual cycloid motor rotator, offering high rotational torque, high efficiency, and durability.
04. Air Filter
Employs a three-stage filtration system comprising a pre-filter, oil-bath air filter, and main air filter, ensuring reliable operation of the diesel engine in high-dust environments.
05. Power Take-Off
Power take-off utilizes a gearbox with dual gear pump configuration.
06. Control Console
Features a new hydraulic system with fast/slow advance modes, reducing auxiliary operation time and accommodating diverse working conditions.
Product Specifications
| Drilling Depth | 10m-50m |
| Drill Pipe Specifications | φ89-3,000mm |
| Drill Hole Diameter | φ90-400mm |
| Compatible Impactor | 4”/5”/6”/8”/10” |
| Maximum Working Torque | 7,600 N·m |
| Rotation Speed | 0-100 rpm |
| Working Air Pressure | 0.7-2.9 MPa |
| Air Consumption | 10-25m³/min |
| Advance Force | 30kN |
| Lifting Capacity | 65kN |
| Travel Speed (Maximum) | 3km/h |
| Gradeability | 30° |
| Total Weight | 6050kg |
| Transport Dimensions (LxWxH) | 7,370x2,360x2,560mm |
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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