Roschen COP44 DTH Hammer Bits for Limestone Rock Drilling - 105-127mm Diameter, 4" Hammer Compatibility
Roschen COP44 DTH hammer bits are high-performance drilling tools specifically engineered for limestone rock formations. These bits serve as reliable replacements for Atlas Copco COP44 hammers, delivering comparable quality and performance with comprehensive after-sales support.
| Shank Type | Bit Diameter (mm) | Bit Diameter (inch) | Air Holes | Front Buttons | Gauge Buttons | Weight (Kg) |
|---|---|---|---|---|---|---|
| DHD340A/COP44 | 105-127 | 4 1/8" - 5" | 2 | 6-8×φ13-14 | 5-7×φ13-14 | 9-12 |
| SD4 | 105-127 | 4 1/8" - 5" | 2 | 6-8×φ13-14 | 5-7×φ13-14 | 9-12.3 |
| QL40 | 105-127 | 4 1/8" - 5" | 2 | 6-8×φ13-14 | 5-7×φ13-14 | 9-11.5 |
| Mission40 | 105-127 | 4 1/8" - 5" | 2 | 6-8×φ13-14 | 5-7×φ13-14 | 6-7.4 |
| Hammer Size | Bit Shank | Connection Thread | Suitable Bit Range | Working Pressure | Air Consumption |
|---|---|---|---|---|---|
| 4" | DHD340/COP44/QL40/SD4/M40 | API 2 3/8" Reg | 110-135mm | 1.0-2.5MPa | 6-15m³/min |
- Dia. 105mm-152mm: COP44, DHD340, MACH44, SD4, M40, QL40, BR4
- Custom shank configurations available upon request
- Metzke and Remet thread options
- High-performance design optimized for limestone drilling
- Premium quality materials ensuring durability and long service life
- Comprehensive size range from 105mm to 127mm diameter
- Compatible with multiple hammer systems including Atlas Copco COP44
We also provide complete drilling solutions including DTH hammers, ODEX systems, Symmetrix systems, slide block drilling systems, and various DTH drilling pipes with API REG, API IF, and BECO thread connections.
With centuries of experience in mining and steel industries, Roschen delivers exceptional drilling performance through advanced rock drilling tool technology, superior hole quality, and optimized production costs.
Email: roschen@roschen.com | roschen@roschen.net
Website: www.roschen.com | www.roschen.net
WeChat/WhatsApp: +86-137 6419 5009 | +86-135 8585 5390
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.