专业的设计，牙轮上加焊耐磨带，使轮子更耐磨，使用寿命长，焊接角度合理，轮子承受力一致，轮子不易损坏。扩孔器芯轴两端加承力接头，如出现拉力过大断扣现象，可更换承力接头，增加扩孔器整体寿命！
牙轮扩孔器的优缺点：Cone Reamer
优点：Advantage
加工周期短 We have a short processing cycle .
适用于各种岩石扩孔器（更适用于中小直径），适用于各种地层（口径220-1600mm）。It it suitable for all kinds of rock reamers (especially for the reamer of middle and small diameter ) and various of stratum (dimensions are220-1600mm)
根据钻机特点及不同地层情况，选择最合适的齿型及轴承结构。
According to the feature of drilling rigs and different stratum ,we choose the best dentiform and bearing structure
掌背倾斜，冷镶防腐合金，减轻磨损。
The dorsal metacarpal leans ,inlaidanti-corrosionalloydirectively without heating ,which reduces to wear down .
独有的牙轮防脱技术，防止牙轮轴承损坏后牙轮落在孔内造成孔内事故。
The particular coneanti-droptechnology will prevent accidents that cone fell into hole whenconebearing damage cone.
水力破岩。排渣顺畅，减少盐沙堆积。Hydraulicpower makerockinto pieces ,Slag discharge smoothly,which willreducesalt accumulation.
焊接工艺保证，防止焊接过热伤害牙轮轴承。
With welding technology guaranteed,it willpreventto damage the cone bearing because ofoverheating.
钻头本体导向螺旋设计，导正及导渣效果好，减少钻头重复破碎。
It adoptedDrill ontology orientation spiral design, have good effect of piloting andleading outslag ,whichreducingbit repetitive broken
滚刀扩孔器的优缺点：Hobbing cutter reamer
优点：Advantage
本公司滚刀轴承密封采用金属密封，寿命从国外的40-60小时提高到目前的100小上。
We adopted metal seal for sealing hobbing cutter bearing .and working lift increased to over 100hours from 40hour-60hours aboard.
解决了掉轮问题。Hobbing cutter reamer solved the cone dropping problem .
滚刀悬挂丝扣本身防脱。Thehob suspensionis anti-drop
滚刀加装互锁装置。Hobbing cutter added interlocking device .
轴承本身的特点是轴承损坏后，滚刀外壳不会脱落。The feature of the bearing is that hobbing cutter will not drop off when bearing is broken .
价格比国外的便宜。The price is more reasonable
本公司对牙轮钻头采用喷焊式，降低了牙掌背部的磨损，
使用寿命延长，如耐磨带磨损变薄后，可以进行补焊。
We adoptedspray welding typedesign for cone bit,whichreducedattritionforbit legsback .
Its working life is pretty long ,it can be welded if thewearproof girdleturns thin
