Home >

ROSCHEN GROUP company news

LEAVE A MESSAGE

News

Foot Valve or Valveless: How to Choose the Right DTH Hammer for Your Rock Formation

2026-10-21

Summary Choosing a DTH Hammer comes down to one design decision that most quotations never explain: does the bit carry a foot valve or not? The difference is not cosmetic. A foot-valve hammer uses a blow tube inside the bit to time air distribution, running a heavier, longer-stroke piston that ...
ROSCHEN COP 44 GOLD Hammer Adds Guided Chuck Casing for 115mm Abrasive Rock Drilling

2026-10-21

Summary The COP 44 GOLD Hammer from ROSCHEN has been re-engineered around a guided chuck casing design that holds a straight 115 mm hole through broken, collapsing and layered ground, giving mining and construction crews a 4-inch class down-the-hole tool that survives repeated rebuilds. Built on the ...
HQ Taper Wedging Bit Diamond Core Drill Bits Hole Cleaning Directional Wedging for Mining Exploration

2026-07-09

Summary The HQ Taper Wedging Bit represents a critical advancement in directional drilling technology for the mining exploration and geotechnical investigation sectors. Designed specifically for diamond non-coring clear hole operations and efficient hole cleaning, this specialized wedging tool ...
High-Performance Overburden Drilling System for Water Well Casing — Boost Drilling Efficiency & Maximize ROI

2026-01-27

In modern drilling projects — whether water well drilling, geotechnical work, or foundation installation — ground conditions can range from soft alluvium to unstable overburden layers. Traditional drilling methods often struggle with collapsing holes, time losses, and increased on-site costs. This ...
Boost Your Drilling Efficiency with the Powerful DTH Water Well Drilling DTH Hammer DHD 350 Without Foot Valve

2026-01-27

In the highly competitive drilling and construction equipment market, selecting the right tools makes all the difference. Contractors, mining engineers, and water well specialists are constantly seeking drilling solutions that can deliver faster penetration, higher reliability, and lower operating ...

1 2 3 4 5 6 7 8



86-137-64195009



roschen@roschen.com



65 EAST XINHUAN ROAD, SHANGHAI, CHINA

Foot Valve or Valveless: How to Choose the Right DTH Hammer for Your Rock Formation

ROSCHEN COP 44 GOLD Hammer Adds Guided Chuck Casing for 115mm Abrasive Rock Drilling

HQ Taper Wedging Bit Diamond Core Drill Bits Hole Cleaning Directional Wedging for Mining Exploration

High-Performance Overburden Drilling System for Water Well Casing — Boost Drilling Efficiency & Maximize ROI

Boost Your Drilling Efficiency with the Powerful DTH Water Well Drilling DTH Hammer DHD 350 Without Foot Valve

Down The Hole Drilling

Drill Rod

Tricone Drill Bit

Diamond Core Drill Bits

Down The Hole Hammer