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1.Certification:ISO9001, 2.High cost performance, 3.Using high quality steel and tungsten carbide tips, 4.Can customize for you - details see: https://www.machineto.com/patent-rotary-drilling-bits-10317144

• We can supply all kinds of RUIZUAN brand coal mining bits, sleeves and holders which have high strength, high wear resistance and long life features;
• Our product are widely used on excavation machines, shearers, coal mines, iron ores, aluminum ores, geotechnical engineering etc;
• We can design and produce different bits according to different hardness of rock to satisfy customer’s different requirements;
• We also can help our customers to design, produce and repair all kinds of cutter drums.
• patent number is ZL2009 20018078.0, named “A kind of rectangular strip hard rock tapered cutter bits” is especially suitable for the hard rock of geological engineering construction, known as the" hard rock buster ", this product performance has reached the international advanced level. The characteristic of this patent technology as below;On the basis of original conical cutter bits, from the end of tapered body, along the cone make uniform distribution and radial rectangular groove, respectively brazing each groove with rectangular tungsten carbide wear-resisting strip, form cone wear-resisting body around the cutter head, to protect mining bits body can’t be wear in hard rock job, to avoid the center alloy early fall off, also be helpful for rotation of conical mining bits in the work, more effective to prevent partial grinding for conical mining bits, greatly extend the service life of conical mining bits, has been widely applied in the ore mining, coal mining and engineering machinery.