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.

ModelJC40DJC50DJC70DJC90D
Nominal drill depth m114mm drill pipe2500-40003500-50004500-70006000-9000
127mm drill pipe2000-32002800-45004000-60005000-8000
Power rating735 (1000 )1100 (1500 )1470 (2000 )2210 (3000 )
kW (hp)
Qty. of motor x power rating2 ×438(537)/2 ×800(1072)2 ×800(1072)3 ×800(1072)
kW (hp)1 ×800(1072)
Motor rated speed r/min880/970970970970
Drill line dia. mm(in)32 (1 1/4  )35 (1 3/8 )38 (1 1/2  )45 (1 3/4  )
Max. fastline pull kN275340485630
Drum size (Dia. x width) mm(in)640×1139685×1138770×1361914×1556
(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)1500×401600×761600×761600×76
(59 ×1 1/2 )(63 ×3 )(63 ×3)(63 ×3 )
Sand drum size (Dia. x width) mm(in)356×1245356×1245356×1245356×1448
(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 brakeDS40DS50DS70DS90
Dimension (L x W x H) mm6600×3716×29906800×4537×29987670×4585×31977874×5486×2997
Weight kg40000480006100070000

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

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