3'' Middle Pressure DTH Drill Bit with Flat Concave Convex Drop Center Bit Face

Application

DTH Drill Button Bits are produced from premium quality nickel-alloy steel for increased durability and wear characteristics. Specific heat treatment standards and special “stress relief” processes ensure consistent performance.

DTH hammer bits are designed for maximum performance and hole cleaning ability and high penetration rate.

We can design and manufacture according to customer's requirement of the down the hole bits Diameter,No. air holes,carbide button shape and the face shape.

Characteristics

1. high and low air pressure down-the-hole drill bits

2. Low air pressure hole Dia.:65-220mm

3. High air pressure hole Dia.:85-305mm

4. Face type:drop center/concave/convex/double gauge/flat

5. Our DTH Bit can be suitable for Original Atlas Copco /Sandivk big brands' DTH Hammers, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc.

Specification

IR3.5 DHD3.5 COP34	85	2	6×13	4×12	4.2	HD35-85
	90	2	6×14	4×12	4.5	HD35-90
	95	2	6×14	4×13	4.8	HD35-95
	100	2	6×14	5×12	5.0	HD35-100
	105	2	6×14	5×13	5.5	HD35-105
QL30 COP34	85	2	6×13	4×12	4.5	QL30-85
	90	2	6×14	4×12	4.7	QL30-90
	95	2	6×14	4×12	4.9	QL30-95
	100	2	6×14	5×12	5.0	QL30-100
	105	2	6×14	5×13	5.5	QL30-105
We can design and manufcture ccording to customer's requirement of the bit daimeter,No.of air holes,carbide button shape and the face shape.

Packing& Delivery ​

Service

In our after sales service system, We establish perfect control system strictly according to ISO-9000 series, in this system, technology date and problem solve solution and preventive measures will be provided in any maintain project, all the spare parts will be used in new OEM products with installation instructions, packing list, manufacturer's instruction, qualification and Warranty certificate.

We provide "one equipment & one case, endless service, namely the after sales service begin from the order confirmation, last for the working life of the equipment.

Purchase Process ​

Beijing Jincheng Mining Technology Co., Ltd. (JCDRILL) is located in Beijing, China. For more than 20 years, we have specialized in the research, development, and production of rock blasting drilling rigs, water well drilling rigs, diamond core drilling rigs, anchor drilling rigs, and related accessories & drilling services. With our advanced technology, high-quality equipment, rigorous testing processes, and comprehensive service network, we consistently provide professional drilling solutions to our customers. These strengths have helped establish the “JCDRILL” brand as a trusted name in the market. Currently, JCDRILL products account for 50% of the domestic market and are exported to more than 40 countries. In November 2002, we were awarded ISO9001:2000 certification.

Our manufacturing facilities, covering an area of 9,625 square meters, specialize in the production of rock blasting drilling rigs, water well drilling rigs, diamond core drilling rigs, anchor drilling rigs, and related accessories. We employ more than 500 staff, including 26 experienced engineers from Ingersoll Rand and the former Xuanhua Mining Machinery Company. With our strong technological expertise and robust market service capabilities, we have developed both an efficient marketing system and an excellent service support system, earning the trust of customers worldwide.

Additionally, we serve as an authorized agent for mobile double-screw air compressors from Atlas Copco, Sullair, and Liutech. This allows us to offer drilling rig users high-quality, professional air compressor solutions along with reliable after-sales services.

At JCDRILL, we are committed to our strategic vision: “Survival by Quality, Development by Credit.” We strive to provide users with high-quality drilling solutions. Our after-sales service system follows a strict control framework based on ISO-9000 standards. This system ensures that technical data, problem-solving solutions, and preventive measures are provided for every maintenance project. All spare parts are sourced from new OEM products and come with installation instructions, packing lists, manufacturer documentation, qualification certificates, and warranty certificates.

We uphold the principle of “One Equipment, One Case, Endless Service”—our after-sales support begins from the moment an order is confirmed and lasts throughout the equipment’s entire operational life.