JC50D Drawworks Caliper Disc Brakes

Kor-Pak provides high-quality spring-set, hydraulic released caliper disc brakes for emergency duty, as well as hydraulic applied, spring-released Service brakes to be used with JC50D 1500HP mechanical drawworks and other similar JCdrawworks 1 drawworks.  Our brakes can provide superior performance and less maintenance.  Lubrication points are easily accessible, all components are made with high-quality materials, brake pads have longer wear life and spare parts are readily available.  Kor-Pak can also provide Hydraulic Power Units and Controls for your drawworks disc brakes and provide commissioning to insure you receive the training and support you need.

Kor-Pak can perform design and engineering services for you braking application as well as providing spare parts and service.  For more information, please contact a Kor-Pak representative today to assist you with your Drawworks braking systems needs and help you achieve greater efficiency and less downtime.

Model JC40D JC50D JC70D JC90D
Nominal drill depth m 114mm drill pipe 2500-4000 3500-5000 4500-7000 6000-9000
127mm drill pipe 2000-3200 2800-4500 4000-6000 5000-8000
Power rating 735 (1000 ) 1100 (1500 ) 1470 (2000 ) 2210 (3000 )
kW (hp)
Qty. of motor x power rating 2 ×438(537)/ 2 ×800(1072) 2 ×800(1072) 3 ×800(1072)
kW (hp) 1 ×800(1072)
Motor rated speed r/min 880/970 970 970 970
Drill line dia. mm(in) 32 (1 1/4  ) 35 (1 3/8 ) 38 (1 1/2  ) 45 (1 3/4  )
Max. fastline pull kN 275 340 485 630
Drum size (Dia. x width) mm(in) 640×1139 685×1138 770×1361 914×1556
(25 1/4 ×44 7/8 ) (27 ×44 7/8 ) (30 ×53 1/2) (36 ×61 1/4)
Brake disc size (Dia. x width) mm(in) 1500×40 1600×76 1600×76 1600×76
(59 ×1 1/2 ) (63 ×3 ) (63 ×3) (63 ×3 )
Sand drum size (Dia. x width) mm(in) 356×1245 356×1245 356×1245 356×1448
(14 ×49 ) (14×49 ) (14 ×49 ) (14 ×57 )
Sand drum capacity (14.5 drill line) m(ft) 4000 (13120 ) 5000 (16400 ) 6400 (21000 ) 7500 (24600 )
Auxiliary brake DS40 DS50 DS70 DS90
Dimension (L x W x H) mm 6600×3716×2990 6800×4537×2998 7670×4585×3197 7874×5486×2997
Weight kg 40000 48000 61000 70000

Description

KOR-PAK CORPORATION REPLACEMENT JC50 DRAWWORKS CALIPER DISC BRAKES

General Features of JC Drawworks:

  • All bearings that support shaft are roller bearings, and shaft is made of quality alloy steel.
  • Chains are pressure-forced lubrication system.
  • The drum is grooved. The ventilated type of clutch bladders are installed on both high and low speed ends.
  • The brake disc is pressurized water lubricated, and the surface has been hardened by medium frequency induction method to extend its service life.
  • The contours of sprocket teeth are hardened with medium frequency induction method.
  • All transmission clutches are of involute spline type.
  • The main brake is either a band type or a disc type. The auxiliary brake is either a eddy current brake or a Eaton brake.

JC DRAWWORKS SPECIFICATIONS
data sheet