Dminingwell Middle Pressure DTH Hammer (MW-M3 / MW-M3K / MW-M4)
Efficient Medium Pressure Down-The-Hole Hammers for Water Wells, Mining & Construction
The Dminingwell Middle Pressure DTH Hammer Series, including MW-M3, MW-M3K, and MW-M4, is engineered to deliver stable penetration, low air consumption, and long service life. Designed for drilling contractors who require reliability and cost-effective performance, these hammers perform exceptionally in medium-hard formations under 0.8–1.3 MPa working pressure.
Whether you are drilling water wells, executing small-to-medium mining operations, or using them for foundation engineering, the MW-Series is a dependable solution optimized for global drilling environments.
For users who want to understand how a DTH system transmits impact energy, our technical guideWhat Is a DTH Hammer and How It Works? explains the full mechanism in detail.
Product Overview
Middle Pressure DTH Hammers operate within 0.8–1.3 MPa, a highly versatile range suitable for most geological conditions and air compressors. With stable air consumption and efficient cuttings discharge, the MW-Series guarantees excellent performance across medium-hard formations, mixed layers, weathered rocks, sandstone, and soft granite.
The three DTH hammer models-MW-M3, MW-M3K, and MW-M4-are optimized for different application levels, ensuring that every drilling contractor can select a model that perfectly fits their operational needs.
Model Selection Guide
MW-M3 - Standard Middle Pressure DTH Hammer
A highly versatile, economical hammer suitable for general drilling.
Highlights：
●Optimized for medium-hard formations
●Lightweight and fuel-efficient
●Stable and smooth drilling performance
●Ideal for water wells, construction drilling, small mining jobs
●Compatible with CIR90 shank bits
MW-M3K - Reinforced Middle Pressure DTH Hammer
Designed for longer drilling hours and abrasive formations.
Advantages
●Stronger internal structure
●Higher wear resistance
●Better airflow and exhaust structure
●Recommended for mining development, construction foundations, and tunnel pre-splitting
●Compatible with CIR90 shank bits
MW-M4 - High-Efficiency Middle Pressure DTH Hammer
A larger hammer offering greater impact energy and larger hole sizes.
Key Benefits
●Superior penetration in large-diameter drilling
●Enhanced airflow channel to reduce pressure loss
●Ideal for deeper hole drilling and demanding formations
●Compatible with CIR110 shank bits
Key Features of Dminingwell Middle Pressure DTH Hammer Series
Industry-standard middle pressure range for universal adaptability.
Internal structure engineered for efficient energy transfer.
Saves fuel cost and works with common portable screw air compressors.
Heat-treated precision parts ensure long service life.
Stable exhaust system improves hole cleaning in wet and dry conditions.
MW-M3/M3K use CIR90, MW-M4 uses CIR110.
Simple structure design reduces downtime.
Products Description
| Model | MW-M3 | MW-M3K | MW-M4 |
|---|---|---|---|
| Length (less bit) | 790 mm | 767 mm | 851 mm |
| Weight (less bit) | 21.64 kg | 20.42 kg | 35.45 kg |
| External Diameter | 84 mm | 82 mm | 99 mm |
| Bit Shank | CIR90 | CIR90 | CIR110 |
| Hole Range | φ90–130 mm | φ90–130 mm | φ110–150 mm |
| Connection Thread | F48×10PIN | F48×10PIN | API 2 3/8" REG BOX |
| Working Pressure | 0.8–1.3 MPa | 0.8–1.3 MPa | 0.8–1.3 MPa |
These parameters confirm that the MW-Series belongs to the Medium Pressure Hammer category, offering reliable penetration performance in versatile drilling conditions.
These models deliver stable performance under 0.8–1.3 MPa, which is the optimal range for mid-pressure drilling. If you are unsure whether mid-pressure or high-pressure designs fit your project, our comparison guide "Differences Between Low, Middle and High Air Pressure DTH Hammers" can help you decide.
Working Principle & Suitable Formations
DTH hammers work by converting compressed air energy into piston movement, creating continuous high-frequency impacts on the drill bit. The exhaust air then flushes the cuttings out of the borehole.
Suitable Formations
●Medium-hard rock
●Weathered granite
●Sandstone
●Gravel & boulders
●Composite formations
Main Applications
●Water well drilling
●Geothermal projects
●Mining blast holes
●Foundation piling
●Quarry operations
●Construction drilling
When selecting supporting equipment, choosing the right air compressor is equally important. You can refer to our technical article "Best Air Compressors for DTH Drilling" to match the correct air supply with your MW-M3, MW-M3K, and MW-M4 models.
Why Choose Dminingwell?
✔ Professional Manufacturer & Global Supplier
With worldwide experience, Dminingwell provides hammers trusted by contractors in 60+ countries.
✔ Full Range of DTH Tools
From Low Pressure to High Pressure hammers, CIR bits, drill pipes, and mobile air compressors.
✔ Strict Quality Control
Every hammer undergoes CNC machining, heat treatment, and performance testing.
✔ OEM Support
Customized colors, logos, and packaging available upon request.
✔ Technical Services
Free drilling guidance, bit selection support, and compressor matching recommendations.
Recommended Combinations
DTH Bits for MW-M3 / MW-M3K
CIR90 size bits designed for 90–130 mm hole drilling.
DTH Bits for MW-M4
CIR110 bits for 110–150 mm drilling.
RecommendedMobile Screw Air Compressors (14–17 bar / 0.8–1.3 MPa range)
DM90-14.5
DM132-8
DM185-13
DM185-18
Related Hammer Series
If your project requires different drilling conditions, you can continue exploring our Low Pressure DTH Hammer Series
andHigh Pressure DTH Hammer Series to build a full drilling solution.
FAQ
Q1: What pressure is suitable for MW-M3, MW-M3K, and MW-M4?
All three models operate efficiently under 0.8–1.3 MPa, ideal for medium-hard formations.
Q2: What is the main difference between M3 and M3K?
M3K features reinforced internal components for abrasive rock and longer drilling hours.
Q3: What hole sizes can these hammers drill?
MW-M3 / M3K: 90–130 mm
MW-M4: 110–150 mm
Q4: Are the hammers compatible with standard bits?
Yes, M3/M3K use CIR90, and M4 uses CIR110 standard shanks.
Q5: What type of air compressor do I need?
A portable screw air compressor within 0.8–1.3 MPa and adequate air volume.
Shipping&Payment
Every piece of D Miningwell equipment and drilling rig undergoes a rigorous load security check to ensure the safety of the cargo in the container.
Our payment methods: credit card, L/C, T/T, Western Union, and we support shipping by air and by sea.
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