Changsha Sollroc Engineering Equipments Co., Ltd
                                                                                                           
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Since 2006
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High-Efficiency DTH Drill Bit with Carburized Steel and Carbide for 57mm to 660mm Diameter Applications

Price Negotiable
Price: $100
MOQ: 1
Delivery Time: Negotiable
Brand: SOLLROC
Product Description
SOLLROC DTH Drill Bit Underground Mining Machine Part
High-Efficiency Hammered Rock Drill Bit for Deep Perforation
Product Application

DTH drilling tools are widely used in underground mining, quarries, hydraulic and hydro-power engineering, water well drilling, mineral exploration, anchoring hole drilling, geothermal engineering, subway excavation, and other civil engineering applications. These tools offer high flatness, smooth hole walls, rigid drill rods and hammers, independent high axial thrust, unlimited drilling depth, low device costs, and easy maintenance. They are particularly effective for drilling holes with diameters between 105mm and 254mm.

Key Features
  • Button bit provides high wear resistance on medium-hard to hard abrasive rock formations (200-260 Mpa compressive strength) with spherical tungsten carbide inserts for strong configuration against carbide fracture
  • Recommended for eliminating hole deviation
  • Widely used in drifting and tunneling operations
  • Bit face design optimized for medium-hard to hard abrasive rock
Product Specifications
Hammer Inch Bit Dia (mm) Bit Dia (inch) Shank
1"64mm-70mm2 1/2-2 3/4"BR1
2"70mm-95mm2 3/4-3 3/4"MACH20/BR2
3"90mm-102mm3 1/2-4"M30/DHD3.5/BR3 COP32/COP34/MACH303
4"105mm-152mm4 1/8-6"COP44/DHD340/MACH44 SD4/M40/QL40/BR4
5"133mm-165mm5 1/4-6 1/2"COP54/DHD350R/MACH50 SD5/M50/QL50/BR5
6"152mm-254mm4 1/8-10"COP64/DHD360/SD6 M60/QL60/Bulroc BR6
8"203mm-330mm8-13"COP84/DHD380/SD8/QL80/M80
10"254mm-380mm10-15"SD10/NUMA100
12"305mm-508mm12-20"DHD1120/SD12/NUMA120/NUMA125
Product Images
SOLLROC DTH Drill Bit close-up view
SOLLROC DTH Drill Bit side view
SOLLROC DTH Drill Bit angled view
SOLLROC DTH Drill Bit detailed view
Bit Face Types

Concave: Ideal for medium-hard and homogeneous rock formations. Provides excellent hole deviation control and superior flushing capacity.

Convex: Delivers high penetration rates in soft to medium-hard formations with low to medium air pressure. Offers maximum resistance to steel wash and reduces load on gauge buttons, though with slightly less hole deviation control.

Flat face: Designed for hard to very hard and abrasive rock formations in high air pressure applications. Combines good penetration rates with resistance to steel wash.

Concave bit face example
Convex bit face example
Flat face bit example
Packing & Delivery
Packed DTH drill bits in plywood cases
DTH drill bits packaging with pallets

Transportation options include sea freight, air freight, or express delivery.

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DTH hammers product image
DTH bits product image

DTH hammers | DTH bits | RC hammers

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Changsha Sollroc Engineering Equipments Co., Ltd
Location No55. Jiucaiyuan road, Furong District, Changsha, Hunan,China
Contact Person Ling Bo

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