Custom DTH Drilling Rigs

Product Introduction

A Down-The-Hole Drill Rig (DTH Drill Rig) is a highly efficient piece of equipment specialized in hard rock drilling. Its core principle involves placing a device called a "Down-The-Hole Hammer" (DTH Hammer) directly behind the drill bit, which then descends into the borehole alongside the bit to perform the drilling.

Product Features

1.The integrated drill rigs are equipped with a high-strength aluminium alloy feed beam and astainless steel protective cover; The distinguished guidance quality and stability contribute tothe achievement of high-precision drilling; The feeding system consists of hydraulic cylinder +steel wire rope or motor + chain and hose follower, the entire series drill rigs can realize feedingin fast or slow speed.

2.The enlarged air filter and oil filter guarantee the long service life of such functionalcomponents as the engine, the screw air end and oil pumps; In line with actual workingconditions, an additional pre-separator at the front end can be assembled to satisfy therequirements of a more demanding environment.

3.The dual-speed tramming motor and the oscillationcylinder of -10°to +10° oscillation angle ensure stableand smooth high-speed movement on flat areas andoff-road performance on pristine landform.

4.A combination of the hydraulic motor or high -power rotaryhead driven by the hydraulic cylinder and the patentedabsorber, greatly lowers the possibility of jamming andprolongs the service life of the rotary head and drilling tools.

5.Electro-hydraulic operating system, which is very convenientfor adjustment and operation; The adoption of intelligentmulti-function controller and CAN com-munication realizesreal-time monitoring of drilling operating conditions; All-round automatic protection and maintenance reminder function.

Applicable working conditions

This series of separated DTH drillnigs had been mainly operating at middle or smallsized quarries, cement mine, open-pit coal mines andpreliminary site preparation for large-scale open-pit mines,as wellas infrastructure construction for highways, real estate and other industries.Equipped with 3.5-inch or 4inch hammers, the optimum hole ranges are 9omm, b115mm andb138mm with high drlling efficiency andoutstanding dust collection performance. The flexibility and mobility of this series are especially suitable for the construction of restrictedworking areas, and have been sucessfully applied to mining and military projects, road construction, water conserancy, rock excavation andother applications, and have been widely recognized by customers at home and abroad.

Customer feedback

Our overseas customer selected Puhua Energy DTH drilling rig for mountain construction projects. After practical use, they highly praised that our mountain‑adapted DTH drilling machine is extremely flexible and maneuverable, perfectly solving the difficulties of uphill transportation and complex terrain drilling. With outstanding mobility and reliable drilling performance, Puhua Energy crawler DTH drill greatly improves construction efficiency and brings stable, efficient drilling solutions for steep slope and mountain engineering.

Why choose us?

1.Verified by numerous mountain projects, slope construction and mining applications, our drilling rig features high working efficiency and low failure rate, highly recognized by overseas customers as a reliable choice for complex terrain construction.

2.User-friendly control system with clear logic and easy operation. The modular design ensures simple maintenance and convenient inspection, providing high stability for long-term use while reducing downtime and maintenance costs.

3.Equipped with high-wear-resistant alloy drill bits and high-efficiency DTH hammers, it delivers high drilling efficiency and low wear, adapting to hard rock, weathered rock, gravel layers and other complex geological conditions, reducing frequent parts replacement and lowering operating costs.

4.Powered by high-performance hydraulic system, engine and key components, it provides stable power output and reasonable fuel consumption. It operates continuously without stalling or pressure loss even under high or low temperature and heavy load, ensuring uninterrupted construction.

5.Constructed with high-strength frame, thickened wear-resistant plates and reinforced welding technology, the rig offers excellent rigidity, impact resistance and anti-vibration performance. It runs stably for a long time under harsh conditions such as mountains, steep slopes and gravel areas with low deformation and low failure rate.

Corporate Strength

Puhua Energy Equipment Technology (Shandong) Co., Ltd. is located in Shandong Province, a key equipment manufacturing base in China. We fully understand that as core equipment for hard rock drilling, the performance of down-the-hole drill rigs directly impacts the efficiency and cost of projects such as mining and water well drilling. Therefore, we consistently focus on "how to make DTH drill rigs better" as our core mission, continuously深耕 product technology, and are dedicated to providing global customers with reliable and efficient DTH rock drilling tools and solutions.

1. Structural Optimization for Enhanced Adaptability to Complex Terrain

As client feedback confirms, "difficulty ascending mountains and challenging construction conditions" are common pain points in mountain projects. We have conducted in-depth research into various complex working conditions to optimize the chassis system and overall machine layout of our Portable down-the-hole drilling machine. By adopting a specialized mining-grade crawler chassis combined with a compact body structure, the equipment can maneuver flexibly and park stably on rugged mountain roads and in narrow spaces. Furthermore, we have strengthened the rig's climbing capability and traction force, ensuring it can easily reach operation points inaccessible to traditional machinery, effectively solving the "difficulty ascending mountains" problem.

2. Solving Lubrication and Maintenance Challenges

Insufficient lubrication is a major cause of premature damage to the hammer. In the design of our DTH drill rigs built to order, we have enhanced the centralized lubrication system to ensure the lubricator continuously and stably supplies oil to the hammer, preventing dry running. Simultaneously, the equipment layout fully considers maintenance convenience; key lubrication points and filter element locations are easily accessible. Coupled with a clear daily inspection checklist (covering lubricator oil level, bit wear, hose connection tightness, etc.), it helps operators complete daily maintenance with ease.

Frequently Asked Questions (FAQ)

1. Can the DTH drill rig be customized? Is the process complicated?

Answer: Yes, we can. We specialize in Custom DTH drilling rigs, supporting customization according to needs such as drilling diameter and power configuration. The process is simple: inform us of your requirements → we provide a solution → production begins after confirmation. Please feel free to contact us to discuss your specific working conditions.

2. What about the equipment quality? Which brands are used for core components?

Answer: Our DTH rock drilling tools and complete machines are made of high-strength wear-resistant materials. Core components are sourced from well-known brands or are high-performance parts developed in-house. Each machine undergoes rigorous testing before leaving the factory, ensuring Reliable DTH drilling equipment that operates stably in hard rock and complex terrain.

3. Is after-sales service and spare parts supply guaranteed?

Answer: We provide a 12-month warranty, lifelong technical support, and a global spare parts supply. Common spare parts for DTH drilling hammers and bits are kept in ample stock and can be shipped quickly, ensuring your construction work is not interrupted.

4. What is the delivery time? How is transportation safety ensured?

Answer: The delivery time for standard equipment is approximately 30-45 working days. Delivery for customized models depends on specific requirements. The equipment is packaged with rust-proof and shock-proof materials, securely fastened, and shipped in cooperation with quality logistics providers with full tracking to ensure your DTH drill rigs built to order arrive safely and on time.