Product Overview

The deep-hole fixed-point rapid sampling device meets the requirement for achieving fixed-point rapid sampling during coal seam drilling and sampling processes. This instrument utilizes advanced aerospace jet technology and multi-stage ejection technology, enabling sampling without withdrawing the drill pipe. It can achieve rapid fixed-point sampling at any location within 100 meters or a larger range in the coal seam within 5 minutes, complying with the GB/T23250 "Direct Determination Method of Coal Seam Gas Content Underground" requirement of "sampling time less than 5 minutes and fixed-point sampling."

Product Application

It enables rapid sampling and fixed-point sampling during coal seam drilling operations.

Technical Parameters

Drill pipe: diameter 73mm;

Drill bit: diameter 94mm;

Sampling speed: >500 g/min;

Rated working air pressure: above 0.55Mpa;

Sampling depth: 0～100m (may vary depending on geological conditions);