1.Applications of the KJ311 Tunnel drilling rig

KJ311 is a hydraulic drifting jumbo designed for 12-35 m2 cross section in underground mining operations. 

2.Advantages of the KJ311 Tunnel drilling rig

Robust universal drilling boom creates ideal face drilling coverage. Automatic parallelism and 360o roll-over enable easy, fast and accurate positioning for face drilling, sideway drilling and bolt hole drilling. 

The layout of components provides excellent vision for the operator in drilling and travelling.Powerful and well balanced 4-wheel drive chassis allows the rig to move through limited space and tough terrain in the mines. Duo-circuit service brake and enclosed multi-disc parking/ emergency brake ensure safety in tramming and on ramp slope. 

Field proven high frequency hydraulic drifter delivers high performance. Trapezoid shaped percussion piston optimizes shock wave transfer efficiency, enhancing penetration and decrease drilling consumables costs. 

Comfortable operator station provides safe working condition. Many automatic features simplified the drilling control and helps the miners to concentrate on fast and accurate drilling. 
 
All service points are easily accessible, which simplifies daily routine maintenance.

Zhejiang Kaishi Machinery Co., Ltd. located in Quzhou City, Zhejiang Province. Our company has many years manufacturing experience in field of air compressors and drilling rig machines. We bring in advanced technology from abroad to meet different requirements of customers. We are the biggest supplier providing the best prices and quality!

The main products manufactured by our company are more than 20 kinds including piston air compressor, screw air compressor, drilling rig machine, drill bits ,drill rod, DTH, air pick, rock drill, down the hole drills, small mining piston air compressor, chiller air compressor, concrete spraying machine, etc. Meanwhile, we have the right to import and export. 

We have a board market in Southeast Asia, South America, Africa and many other countries. Good service and high quality help us gain recognition from users at home and abroad.

We have ISO9001: 2008 quality Certification. We look forward to establish a long-term cooperation relationship for our common development. If you are interested in our products, please visit our website or contact us.