A pneumatic leg rock drill operates by using compressed air to drive a piston in a reciprocating motion. During the forward stroke, the piston strikes the drill shank; during the return stroke, the piston causes the drill tool to rotate. This enables the breaking and drilling of rock. These types of rock drills are typically mounted on pneumatic legs, which provide support and forward thrust, thereby reducing the operator’s labor intensity and improving drilling efficiency.

Pneumatic leg rock drills are suitable for drilling horizontal or inclined blast holes in medium to hard rock. The typical drilling depth ranges from 2 to 5 meters, with hole diameters between 34 and 42 millimeters. The drill features centralized controls, flexible startup, air-water linkage, convenient operation, and simple maintenance. Additionally, it offers advantages such as energy efficiency, long component lifespan, high interchangeability, and reliable performance.

Detailed Introduction to Pneumatic Leg Rock Drill

1. Working Principle
The pneumatic leg rock drill uses compressed air to drive the piston in a reciprocating motion. During the forward stroke, the piston strikes the drill shank, generating impact force. During the return stroke, the piston drives the drill tool to rotate, thereby achieving rock breaking and drilling.

2. Applications
Pneumatic leg rock drills are suitable for wet drilling operations in medium to hard rock. They are capable of drilling horizontal or slightly inclined blast holes and are widely used in mining, railway construction, transportation, hydraulic projects, and other rock excavation works.