4 Inch DTH Hammer - DHD 340, COP 44, Mission 40 Compatible with 110-135mm Bits and 1.0-2.5MPa Pressure
Price:
negotiation
MOQ:
5pcs
Delivery Time:
15 days
Brand:
ROSCHEN
Product Description
ROSCHEN manufactures premium Down-The-Hole (DTH) hammers and comprehensive rock drilling tools for mining, construction, and water well drilling applications. Our 4-inch DTH hammers are compatible with multiple industry standards including DHD 340, COP 44, QL 40, SD 4, and Mission 40 series.
Product Specifications
Available in multiple sizes: 3", 3.5", 4", 5", 6", 8", 10", and 12" diameters to suit various drilling requirements.
Compatible Hammer Models
- DHD340A, DHD350R, DHD360, DHD380
- COP32, COP34, COP44, COP54, COP64, COP84
- Mission 40, Mission 50, Mission 60, Mission 80
- SD4, SD5, SD6, SD8
- QL40, QL50, QL60, QL80
- BR2, BR3 series
Technical Specifications Table
| Hammer Size | Bit Shank | ROSCHEN Code | Connection Thread | Suitable Bit | Working Pressure | Air Consumption |
|---|---|---|---|---|---|---|
| 4" | DHD340, COP44, QL40, SD4, M40 | ROS 34 | API 2 3/8" Reg | ￠110-￠135mm | 1.0-2.5Mpa | 1.0Mpa: 6m³/min 1.8Mpa: 10m³/min 2.4Mpa: 15m³/min |
| 5" | DHD350, COP54, QL50, SD5, M50 | ROS 52, ROS 54 | API 2 3/8" Reg / API 3 1/2" Reg | ￠135-￠155mm | 1.0-2.5Mpa | 1.0Mpa: 9m³/min 1.8Mpa: 15m³/min 2.4Mpa: 23m³/min |
| 6" | DHD360, COP64, QL60, SD6, M60 | ROS 62, ROS 64 | API 3 1/2" Reg | ￠155-￠190mm | 1.0-2.5Mpa | 1.0Mpa: 10m³/min 1.8Mpa: 20m³/min 2.4Mpa: 28.5m³/min |
Key Features
- Valveless hammer design driven by compressed air
- Large impact energy and high penetration rates
- Long service life and reliable working performance
- Efficient drilling cuttings removal system
- Compatible with dry dust collection and wet dust removal systems
- Heavy-duty models available for abrasive drilling conditions
Applications
- Drilling blasting holes and ventilation holes in mining operations
- Water well drilling and exploratory boreholes
- Road cutting and construction projects
- Underground mining and open pit operations
Additional Product Range
ROSCHEN offers comprehensive drilling solutions including button bits, cross bits, coupling sleeves, diamond core bits, integral drill rods, and complete drilling rig systems.
Contact Information
Skype: ROSCHEN.TOOL, ROSCHEN_GROUP
WeChat: +86-137 6419 5009; +86-135 8585 5390
WhatsApp: +86-137 6419 5009; +86-135 8585 5390
Email: roschen@roschen.com; roschen@roschen.net
Website: www.roschen.com; www.roschen.net
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
ROSCHEN GROUP
Location
65 EAST XINHUAN ROAD, SHANGHAI, CHINA
Contact Person
Bill, George, Michael