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Products > Reversing System > H&D Machine Co., Ltd. | Similar Products

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Reversing System

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HD-40d Man Portable Drilling Rig: damage probability of bearing. Main Specification Drilling method Depth Pipe（diameter×length） Hole diameter Mud drilling 40 m φ60×1500 75/90mm Air drilling/Hammer drilling 40 m φ60×1500 75/82mm Screw ...

HD-20d Man Portable Reverse Circulation Drilling Rig: reverse circulation with casing to protect well to finish drilling. 2. Drilling method: reverse circulation and casing drilling. Max drilling depth is 20 meters. Use portable hydraulic casing ...

HD-40a Man Portable Drilling Rig: HD-40A MAN PORTABLE DRILLING RIG Features: 1. This drilling rig is applicable to work in mountain, loess, hill, plain, forest, gobi, seasonal farmland for seismic prospecting, mine survey, geologic ...

HD-40 Man Portable Drilling Rig: system, the drilling tool and other appendices. 2. Optimization design of belt drive hydraulic pump, hydraulic tank and the reversing valve combination, reduces the loss of the system, the main mast ...

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