- Zhongman International Petroleum Equipment (Beijing) Co., Ltd > Sell LeadsTrade Leads
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drilling rig 2008-04-29
1. The drawworks is one-piece single shaft structure, compact, light-weighted, higher transmission efficiency, and less maintenance; the hook hoisting speed is 0～1.3m/s stepless speed regulation. 2. Drawworks main brake is hydraulic disc brake. Assistant brake is dynamic brake. Brake unit automatically detects electric voltage on DC side and when the reading exceeds preset value, extra dynamics can be...
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