drawworks

There are two different kinds of drawworks, internal transmission and external transmissionsMain brake uses hydraulic disc brake and belt brake, and the auxiliary brake use whirlpool brake or water brakeChain use Forced Iubrication Model JC15DB JC30B JC40DB JC50D JC50DB JC70DB Nominal drilling depth (4 1/2" DP) 1500 3000 4000 5000 5000 7000 Rated power, Kw 500 400 800 1100 1100 1470 Max.Pull of Fast Line, Kn 150 200 280 350 350 487 Dia. Of wireline for hoisting, mm 26 29 32 35 35 38 Cylinder size (diameter×width ),mm 473×900 560×1120 644×1208 770×1310 770×1310 770×1434 Bailing bucket size(diameter×width ),m ___ ___ 400 ×1080 400×1320 ___ ___ Bailing bucket capacity,m ___ ___ 4000 5000 ___ ___ Upgrade speed 2F+2R 4F+1R 4F+4R 4F+4R 1F+1R 1F+1R Cat shaft speed ---- ---- 2 2 2 ---- Auxiliary brake FDWS15 FDWS30 FDWS40 FDWS50 Regenerating brake Regeneratig brake Appearance size(length×width×height),mm 4500×2400×2500 6500× 2500×2800 7000×3695×3010 7190×4335×3216 6530×3192×2680 7920×3200×2680 Weight,Kg 11000 17500 39125 49600 36000 46500