Tracked integrated DTH drill rig

Product Introduction

This D65 integrated open-pit DTH drill rig is a high-efficiency blast hole drilling machine specifically designed for open-pit mines, quarries, and large-scale earthworks. Featuring a crawler-mounted chassis and equipped with a built-in air compressor, dust removal system, and hydraulic power unit, it can operate independently without the need for external support equipment. The rig is capable of meeting hard rock drilling requirements across a range of hole diameters and depths. With a comfortable, protective cab, it combines excellent terrain mobility, powerful drilling efficiency, and environmentally responsible performance. It represents an efficient and reliable integrated solution for mine blasting operations.

Product details

I. Front Drilling System – The Core of Efficient Rock Breaking

High-Torque Rotary Head Assembly:

Adopts a dual-motor driven rotary mechanism paired with a high-strength drill rod holder. It delivers stable high torque output, suitable for drilling in hard rock and high-hardness ores, significantly reducing the risk of drill rod slippage or breakage.

Integrated Dust Collection Cover:

The front end is equipped with a large-diameter dust collection cover that directly interfaces with the dust removal system, enabling centralized dust capture during drilling. This reduces dust emissions at mining sites and meets green construction requirements.

Hydraulic Telescopic Compensation Beam:

The drill boom features a hydraulic telescopic feed beam that allows precise rod feed and automatic compensation. Together with hydraulic outrigger cylinders, it ensures borehole verticality and accuracy, providing stable operation even on complex terrain.

II. Chassis and Power System – Reliability of Integrated Layout

Compact Power Pack Design:

Adopts an integrated layout of “engine + screw air compressor + hydraulic oil pump”. The diesel engine delivers power from both ends, simultaneously driving the compression system and hydraulic system. The structure is compact with high energy transfer efficiency, reducing piping losses.

Two-Stage Compression Screw Air Compressor:

Equipped with large dual-fan cooling grilles, and internally integrates high-grade air filters, oil-water separator, and air receiver tank. It provides a stable, high-pressure air source to power the DTH hammer, while ensuring air cleanliness to extend hammer life.

Modular Protection Structure:

The machine body is welded from high-strength steel, and key components are fitted with impact-resistant, dust-proof covers. An optional protective canopy can be added on top to withstand outdoor working conditions including sun exposure, rain, and flying rock chips.

III. Cab – Ergonomic Control and Safety Protection

Multi-Mode Control System:

Features a dual-joystick layout. The main joystick integrates drilling rotation, feed, and boom lift controls, while the auxiliary joystick handles crawler travel and steering. An independent hydraulic outrigger control lever is also provided. The logical control layout reduces the risk of operational errors for new operators.

Safety and Convenience Features:

Equipped with an emergency stop button, key switch, status indicator lights, and function knobs. Critical control areas are designed to prevent accidental touches. The cab is fully enclosed, with a protective grille on the front window and a vibration-damped seat, reducing noise and vibration impact on the operator.

Status Monitoring Panel:

The cab integrates a monitoring panel displaying key parameters such as engine speed, oil pressure, oil temperature, and air compressor pressure. The operator can monitor real-time machine status, facilitating fault prediction and maintenance.

IV. Crawler Chassis and Travel Mechanism – Adaptability for Harsh Terrain

Heavy-Duty Crawler Chassis:

Uses widened and thickened track shoes combined with large travel motors and drive sprockets. Low ground pressure and strong climbing ability allow operation on muddy, rocky, and steep terrain in mines. An anti-derailing device is also fitted to enhance travel reliability.

Independent Hydraulic Outriggers:

The drill rig is equipped with multiple independently controlled hydraulic outrigger cylinders. The machine can be quickly leveled before drilling, maintaining stable drill positioning even on sloping ground and preventing vibration-induced accuracy loss.

Modular Maintenance Design:

The crawler travel mechanism, hydraulic lines, and power pack are all modularly arranged. Key components are easy to disassemble and service, reducing maintenance difficulty on site and minimizing downtime.

V. Overall Design Highlights

High Integration:

Drilling, compression, travel, and dust removal functions are fully integrated. No additional external air compressor is required, making relocation flexible and significantly reducing equipment transport and support costs.

Durability First:

Key components are designed with high strength and high protection ratings, suitable for long-term operation in high-dust, high-impact, high-load mining environments.

Operator-Friendly:

The cab layout follows ergonomic principles, and the control logic is clear. A single operator can complete the entire workflow including drilling, rod handling, and relocation, reducing labor costs.

Scope of application

1.Open-Pit Mines

Blast hole drilling in ferrous, non-ferrous, and non-metallic open-pit mines (e.g., iron ore, copper ore, limestone). Capable of efficiently drilling main blast holes, pre-split holes, and buffer holes.

2.Quarries

Dimensional stone or blasting extraction in granite, marble, basalt, and construction aggregate quarries. Handles high-hardness, highly abrasive rocks with ease.

3.Large-Scale Earthworks

Rock excavation and subgrade blasting drilling for hydropower, highways, railways, airport construction, and other major infrastructure projects, meeting large-volume overburden removal requirements.

4.Hard Rock Drilling

Designed for hard to extremely hard rock with Protodyakonov hardness coefficient f = 8–20. Maintains high penetration rates even in difficult formations such as granite, diabase, and quartzite.

5.Rugged & Complex Terrain

Crawler chassis allows operation on muddy, rocky, and steep slopes (maximum climbing ability of 25°–30°). Hydraulic outriggers ensure borehole verticality on uneven ground.

6.Environmentally Sensitive Sites

Integrated dust collection system achieves high dust capture efficiency, meeting strict environmental standards for green mining and dust control compliance.

company strength

Puhua Energy Equipment Technology (Shandong) Co., Ltd. is a high-tech enterprise specializing in the R&D, manufacturing, and sales of energy and mining equipment, headquartered in Shandong Province, China. The company is dedicated to providing efficient, eco-friendly, and reliable integrated drilling and blasting solutions for global open-pit mines, quarries, and large-scale earthworks.

Core products include integrated open-pit DTH drill rigs, crawler-mounted hydraulic drill rigs, and related drilling tools, with full in-house design and integration capabilities covering power systems, compression systems, and dust control systems. Guided by the philosophy of "technology-driven, durability first," the company's products achieve industry-leading performance in hard rock drilling efficiency, overall reliability, dust management, and operator comfort.

Puhua Energy Equipment has an experienced R&D and service team that can provide customized configurations and on-site technical support based on customer working conditions. With the mission of "supporting green mining and achieving efficient drilling," Puhua Energy Equipment is steadily becoming a trusted partner for mining and engineering customers worldwide.

Frequently Asked Questions（FAQ）

1. Does the D65 drill rig require an external air compressor?

A: No. The D65 is an integrated design with a built-in two-stage screw air compressor. It independently supplies all the high-pressure air needed for drilling, eliminating the need for additional support equipment and allowing more flexible relocation.

2. What hole diameters and depths can this rig handle?

A: Depending on rock conditions and configuration, the D65 typically supports hole diameters from 90 mm to 165 mm and drilling depths up to 20–30 meters (via single-pass feed or rod addition). Customized parameters are available upon request.

3. What is the maximum climbing ability?

A: The crawler chassis offers a maximum climbing capacity of 25°–30° (depending on ground traction conditions). Multiple independent hydraulic outriggers allow quick leveling on slopes to ensure borehole verticality.

4. How effective is the dust control system? Does it meet environmental regulations?

A: The rig features a large-diameter dust collection cover and an integrated high-efficiency dust removal system (dry type or optional wet type). Dust collection efficiency exceeds 95%, meeting green mining standards and local emission requirements.

5. Is the rig difficult to operate? Is special training required?

A: The cab uses a dual-joystick layout with clear control logic. Beginners can master basic operations after 1–2 days of on-site guidance. We provide free training upon delivery along with detailed operation manuals.

6. Is maintenance convenient?

A: Yes. The modular design provides easy access to the power pack, hydraulic lines, and crawler travel mechanisms. Wear parts such as air compressor filters, oil separators, and hydraulic filters are positioned for convenient service – one person can perform routine maintenance.

7. Do you offer spare parts and after-sales support?

A: Yes. We provide genuine spare parts, remote fault diagnosis, and on-site technical service throughout the equipment lifecycle. Key components are warranted for one year, and lifetime technical support is available.