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                      會員登錄
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                      Service Hotline:+86-713-8341999

                      Sales Hotline:+86-189-86515678

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                      • Into Milalion

                        Hubei MILALION Alloy Tool Co., Ltd. was established in August 2009. It mainly designs, develops and produces tricone bits for metallurgical mining, tricone bits for oil, tricone bits for water wells, single-piece roller cone bits, Various types of engineering drills, various engineering tools, shield machine tools, pipe jacking tools, down-the-hole drills and impactors. It is a high-tech enterprise integrating scientific research, design, production and sales.

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                      • News

                        You can learn about the latest developments of Minglilai for the first time, share the hottest information of the industry with you, and serve you all the time.

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                      • Products

                        The new high-efficiency metallurgical mining roller cone bit independently developed by our company is suitable for the mining and drilling of soft, medium, hard and extremely hard rock. It has the characteristics of long life, high efficiency and easy ballast removal. The drilling depth of the roller cone bit is 2 to 3 times, which fully meets the application requirements of the mining and tunnel mining industries, and at the same time cuts all kinds of trenchless pipe galleries.

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                      Single Roller bit
                      • Single Roller bit
                      • Single Roller bitSelection guide
                      • Single Roller bitSpecifications
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                      Hotline

                      +86-713-8341999

                      Product introduction

                      MILALION has developed and produced a series of rotary drill bits for pile foundation engineering with specifications of 8 1/2"(216mm) and 12 1/4"(311mm), which can be customized to meet customer requirements.

                       

                      Engineering drill

                      Bit specification

                      Installation instructions

                      Applicable Operating Mode

                      8 1/2"
                      12 1/4"
                      IADC
                      537
                      637
                      837

                      Welded type. 120 degree surface. Full coverage of engineered roller cone bits

                      In the welding installation mode, the Angle of the palm back relative to the cylinder is 3~5°, and the installation sequence of the cone may follow the positive and negative alternation at most. Pay attention to the concentricity and height difference of the inner and outer rings of the drill bit. In the welding mode, it is suggested that the cone should be immersed in water or the temperature should be controlled by discontinuous welding to avoid high temperature damage to the sealing system.

                      30~180MPa, strong, medium, breeze granite, sandstone, limestone, shale, dolomite, conglomerate, etc.

                      Welded type. 90 degree surface. Full coverage of engineered roller cone bits

                      Detachable type. Engineering drill bits with seat bolts

                      Cylinder drill with mounting base flange, base with positioning pin hole and bolt connection fixing hole, installation using high strength bolt fixation and positioning pin fixation, when the roller is damaged, only need to disassemble the coupling bolt, take off the drill, and then replace a new drill.

                      Detachable. Insert positioning pin type engineering roller cone bit

                      First, the base is welded to the cylinder body to ensure the consistency of verticality and height difference between the base and the cylinder body, and the internal and external installation and welding are interrupted according to the installation direction (that is, follow the positive and negative alternating); Then insert the tooth sole into the base and drive into the positioning pin for easy disassembly.

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