LIDAN DBS brake servo - for drawworks with band brakes - drastically improves drillers working conditions and improves safety. Control characteristics and feed back response mimic drillers habitual braking technique and feeling for block weight and travelling speed. LIDAN ADS autodriller - The Lidan autodriller system consists of a closed hydraulic circuit for precise and continuously smooth feed off and with a PLC controller for accurate WOB control. The Autodriller is based on the Lidan state of the art drawworks band brake servo system. Together they form a fail safe system which is easy to operate, delivers increased drilling performance and reduce fatigue on equipment as well as personal. • Maintains steady drilling condition trough improved control of Drawworks existing band brake. • Continuous feed off by a closed hydraulic fail safe circuit, which operates even without full WOB control. • Operates through all ROP ranges (0-120 m/h, option 0-300 m/h). • High accuracy WOB control together with the precise feed off system sees for best possible ROP and bit utilization. • Secondary parameter may be used to regulate or respond to pressure or torque signals. • Reduced forces on band brake mechanism. • Eliminates eddy current brake heat up during drilling activities. • Easy to operate and adopt, designed with drillers habitual behaviour in mind. • Instant access to the drawworks manual controller even in Autodrill operation. • Eliminates heavy workload and reduce driller fatigue or kickback injuries. • Rugged design assures reliable operation for long time in extreme environments. Download: Lidan Autodriller Systems (Acrobat PDF) LIDAN BCS block collision protection is supervised by calculated function of weight, speed and block position. It directs the electric brake andalso applies the spring brake actuator for ultimate protection against floor or crown collision.