ZDY-2000S full hydraulic tunnel drilling rig ZDY2000s tunnel drilling rig, ZDY2000 full hydraulic drilling rig, coal mine special hydraulic tunnel rig manufacturer Environmental conditions for ZDY2000 full hydraulic drilling rig The rig can work normally under the following conditions: a) Ambient atmospheric pressure: 86kPa ~ 106kPa. b) Ambient air temperature does not exceed 35 °C. c) Ambient air relative humidity does not exceed 95% ± 3% (± 25 ° C). d) Ambient air contains methane or explosive coal dust. e) The structure and installation form of the motor are IMB3 and IMB5.
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