K7LZ73X7.0-4 Steel Spiral Air Downhole Motor

Product Introduction

The K7LZ73X7.0-4 steel spiral air downhole motor serves as a dedicated power unit engineered specifically for demanding underground directional drilling. Crafted from heavy-duty alloy steel, the robust outer housing feels cold and unyielding to the touch, coated with a specialized anti-corrosion layer that withstands the harsh, moisture-laden, and abrasive conditions of deep coal seams. Powered entirely by compressed air, this explosion-proof motor emits a steady, rhythmic hum during operation, ensuring absolute safety in methane-rich and heavily dusty environments where traditional electric tools pose severe risks.

The unit features a fixed 1.25° bent housing, alongside standardized top 2 3/4 CHD and bottom 3NRD threads, enabling rapid, secure integration with global mainstream drilling rigs and Measurement While Drilling (MWD) systems. By converting pneumatic energy into consistent mechanical torque, it drives the drill bit through complex rock formations with remarkable stability, offering operators precise trajectory control. This equipment not only accelerates borehole creation for gas drainage but also significantly minimizes downtime, delivering reliable performance across extensive project timelines.

Product Advantage

Advantages of Xinyongjia K7LZ73X7.0-4 Steel Spiral Pneumatic PDM Drilling Motor

1.This coal mining pneumatic downhole mud motor passes API international certification, offering standardized safe performance as reliable underground air screw drilling tools for mine gas drainage.

2. The steel spiral air screw downhole motor is built with outer spiral slagging structure and oil seal transmission unit, greatly improving debris removal efficiency for underground coal seam drilling operations.

3.Equipped with optimized linear high-temperature resistant rubber, this mine pneumatic downhole motor stably works in soft loose coal layers with stable power output and extended service life.

Technical Parameters

Product Uses

1. Coal Mine Gas Drainage Drilling

   This 2 7/8 inch small-size mud motor delivers steady, controllable torque specifically tailored for underground horizontal boreholes. Its exceptionally compact outer diameter allows it to maneuver easily through narrow, confined mine tunnels without snagging on jagged rock walls. By supporting efficient coalbed methane extraction, it plays a vital role in underground gas drainage construction, ultimately securing the working environment against dangerous gas accumulations and ensuring strict compliance with mine safety regulations.

2. Coal Mine Roadway & Side Drilling

   The miniature hydraulic steel screw motor adapts perfectly to limited underground spatial constraints, where larger equipment simply cannot reach. It executes complex sidetracking and branch hole drilling directly within dense coal rock layers. This capability significantly improves construction efficiency for mine roadway reinforcement works, allowing structural support teams to anchor stabilizing elements deeper and more accurately into the surrounding strata, thereby preventing potential cave-ins.

3. Coalfield Geological Exploration Drilling

   The Xinyongjia drilling mud motor serves as an essential mechanism for rigorous coalfield geological surveys. Its stable power output effortlessly handles mixed coal-rock formations, chewing through varying hardness levels without stalling or excessive vibration. It proves highly suitable for short-distance directional exploration holes in underground coal mining projects, providing geologists and engineers with precise core data to map out future excavation routes safely and effectively.

Product Operate Guide

To maximize the operational lifespan and efficiency of your pneumatic downhole motor, we provide a comprehensive operation manual. This guide covers essential procedures, from initial thread lubrication and secure rig connection to optimal air pressure regulation and post-drilling maintenance. Proper adherence to these guidelines ensures the equipment maintains its explosion-proof integrity and peak torque output in demanding underground environments. Download the full documentation below to equip your field technicians with the knowledge needed for safe, continuous operation.

Operation manual

Download