Xi'an ZZ Top Oil Tools Co.,Ltd is one of the top level oilfield drawwork manufacturers and suppliers,Website:http://www.zztopdownhole.com, with professional factory, we are able to produce API and oilfield jc 40 drawwork, jc50 drawwork, jc70 drawwork, welcome to contact us. TECHNICAL FEATURES *There are two different kinds of drawworks,internal transmission and external transmission. *All of the bearing use roller bearings ,and shaft materials are high quality steel. *Chain use forced lubrication. *Drum has EBGS Groove and LEBGS Groove,Drum use pneumatic tyre clutch. Break use circulating forced cooling. Main break uses hydraulic disc break and belt brake,and the auxiliary brake use whirlpool brake or water break. TECHNICAL PARAMENTR OF DRAWWORKS Model JC15DB JC30B JC40DB JC50D JC50DB JC70DB Nominal drilling depth (4 1/2’’ DP)m 1500 3000 4000 5000 5000 7000 Rated.input power kW 500 400 800 1100 1100 1470 Max.pulling of fast-line kN 150 200 280 350 350 487 Diameter of wire rope mm 26 29 32 35 35 38 Drum size (D×W)mm 473×900 560×1120 644×1208 770×1310 770×1310 770×1434 Sand drum size (D×W)mm - - 400×1080 400×1320 - - Sand drumcapavity m - - 4000 5000 - - Hoisting speeds 2F+2R 4F+1R 4F+4R 4F+4R 1F+1R 1F+1R Speeds for cathead shaft - - 2 2 2 - Auxiliary brake FDWS15 FDWS30 FDWS40 FDWS50 Regenerating brake Regenerating brake
