With 10 years experience of serving our mother company which is a professional foundation construction company since 2003, we deal with machinery and spare parts problems and improve them, we design and fabricate as per construction situations. Now Hunan HM Machinery Co., Ltd has two factories, we focus on designing, developing and manufacturing of high quality construction machinery spare parts and accessories . Our main products are: Custom Made Rotary Drilling Rig and Multiple Function Micro Drilling Rig; Desander Series; Diaphragm Wall Trench Cutter; Kelly Bar, Drilling Tools, Casing systems For Rotary Drilling Rig; Spare Parts for Rotary Drilling Rig; Spare Parts For Diaphragm Wall Trench Cutter like Gear Box, Cutting Wheels, Damper, Suction Box, Mud Pump, Mud Hose, Flap Tooth; Spare Parts For Crawler Crane; Steel Wire Rope for Rotary Drilling rig/Crawler Crane/Truck Crane/Port Machinery; Undercarriage parts for Rotary Drilling Rig/Excavator/Crawler Crane likeTrack Chain Assembly, Track Shoe, Lower Roller, Upper Roller, Sprocket, Idler Wheel and Tension Jack; Hydraulic Parts for Rotary Drilling Rig/Crawler Crane/Excavator like Motor, Reducer, Pump ,Valve ,Cylinder, Filters; Electric Parts like Display, Sensor, Encoder...Teeth like Pile cutting teeth, Milling Teeth, Trench Cutter Teeth; We offer whole machine repairing service for Rotary Drilling Rig, Excavator, Crawler Crane, Truck Pump,Trench Cutter and Grab as well. We cooperate with SANY, XCMG, FUWA, ZOOMLION for long term, our products are sold well all over the country, exported to Australia, Brazil, the Middle East, Russia and other countries and regions. Our Company factories are located in Changsha Town and headquarter is located in Changsha city,we have branches and offices in Hong Kong, Australia and Algeria. We have passed quality management system ISO9001 and CE Certificate. The company management principle is “As OEM: Quality for market, Improvement for sustenance.”