21m Integrated Blast Hole Drilling Machine All In One Crawler Dth Drilling Rig
Based on mature technology, we keep on improving drill rig productivity and work adaptability. This two models with perfect flexibility and reliability, ensure higher productivity, better adaptability, better hole quality.
1.Accurate straight hole for better blasting effect control.
2.Faster stripping speed by combining work benches & pre-split blasting hole.
3.Less waste excavation by increasing slope angle.
4.Better flexibility than traditional surface mining & quarry rigs.
5.Heavy duty motor-chain driving feed beam, stable & reliable.
6.Box type boom, strong & flexible.
7.A/C equipped full view FOPS & ROPS cab for noise and shock proof.
8.All closed machine, air spring protection doors convenient for maintenance and service.
9.Round table auto pipe changer, rotary head with excellent drilling ability for 3.5/4 inch hammers, rotary torque up to 2800 N.m.