Jun 07, 2026 Leave a message

How To Select A DTH (Down-the-Hole) Drill Model?

Key Model Specifications
DTH (Down-The-Hole) drill models are like "underground paintbrushes" of various sizes; choosing the right tool ensures the ideal borehole. Focus on three key parameters:

Hole diameter range: Ranges from 90mm to 200mm; smaller diameters suit anchoring projects, while larger ones are used for blasting holes.

Drilling depth: Shallow-hole models (under 20m) suit building foundations; deep-hole models (50m+) are used for mining operations.

Power configuration: Electric models suit quiet urban construction; diesel models are ideal for remote sites without grid power.

 

Matching Typical Scenarios
Different projects are like different "canvases" requiring specific models:

Slope stabilization: Choose a medium-sized rig with a 127mm diameter and 30m depth capacity, featuring a hydraulic feed system.

Mineral exploration: Requires heavy-duty drill rods (200mm diameter) and a high-torque impactor.

Municipal engineering: Prioritize low-noise electric models with a folding design for operation in confined spaces.

 

Operation and Maintenance Essentials
Secrets to keeping the equipment in peak condition:

Regularly clear dust from the impactor to prevent piston jamming.

Apply specialized grease to drill rod threads to extend service life.

Drain accumulated water from the air compressor promptly after working during the rainy season.

Replace the hydraulic oil filter element every 200 operating hours.

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