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DQ70BZ02-YM Oil Top Drive
② Silent and environmentally friendly: The gearless gearbox and lubrication oil pump operate with virtually no noise. Additionally, the machine employs sealed water-cooling and a hydraulically-powered station positioned below, ensuring that operational noise does not exceed 50 decibels, thereby significantly improving workers’ working environment.
③ Fully explosion-proof: The top drive’s main motor employs a sealed water-cooling technology, with the motor completely enclosed within the top drive housing, enabling true, fully explosion-proof performance.
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Product Parameters
Drive method AC Variable Frequency Drive (AC VFD) Nominal drilling depth (φ114mm drill pipe) 7000m Rated load 4500kN Power supply 600VAC/50Hz (60Hz optional) Rated power of the main motor 800 kW (continuous) Drilling torque 80 kN·m / 95 rpm Maximum shackle torque 120 kN·m Spindle speed range 0–220 rpm Back clamp gripping range 86mm~216mm Mud channel Φ75mm Mud channel circulation pressure 52MPa Up (remote control) 6 5/8″ API REG 70 MPa Next (manual) 6 5/8″ API REG 70 MPa Hydraulic system working pressure 14MPa Working height 7.1m Main body weight 18t Ambient temperature -20℃~55℃ (optional: -45℃~55℃) 
① High efficiency and energy saving: The top drive boasts high efficiency and energy savings, making it an ideal fit for the future development trend of green and low-carbon drilling equipment.
② Silent and environmentally friendly: The gearless gearbox and lubrication oil pump operate with virtually no noise. Additionally, the machine employs sealed water-cooling and a hydraulically-powered station positioned below, ensuring that the operating noise does not exceed 50 decibels, thereby significantly improving the working environment for employees.
③ Fully explosion-proof: The top drive’s main motor employs a sealed water-cooling technology, with the motor completely enclosed within the top drive housing, enabling truly comprehensive explosion-proof performance.
④ Reliable performance: By adopting electric direct-drive technology, we’ve streamlined the internal structure of the top drive housing to its simplest form, thereby avoiding major overhauls at the factory caused by failures of even a single small gear or bearing. This maximizes the top drive’s operational reliability and continuous drilling capability.
⑤ Convenient Maintenance: In conventional mechanical top drives, metal debris generated by gear meshing contaminates the lubricating oil. However, the DQZ series top drives feature a gearless reduction mechanism and employ oil-immersion lubrication, which can effectively extend the service life of the lubricating oil and reduce the frequency of oil changes.
⑥ Precise Control: When the top drive is performing directional drilling or after activating the oscillating torque-reducing function, it is necessary to precisely control the rotation angle and direction of the main spindle.
DQ70BZ02-YM Oil Top Drive
② Silent and environmentally friendly: The gearless gearbox and lubrication oil pump operate with virtually no noise. Additionally, the machine employs sealed water-cooling and a hydraulically-powered station positioned below, ensuring that operational noise does not exceed 50 decibels, thereby significantly improving workers’ working environment.
③ Fully explosion-proof: The top drive’s main motor employs a sealed water-cooling technology, with the motor completely enclosed within the top drive housing, enabling true, fully explosion-proof performance.
If our products meet your current needs,Please leave us a message!
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