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  • Copper disc design for high heat dissipation
  • Accurate control
The Wichita Kopper Kool airtube disc Clutches and Brakes are liquid cooled and consist of a series of alternating discs connecting an inner drive member to an outer drive member.

Engagement is achieved by pneumatic expansion of the airtube. This air-operated clutch contains copper discs for excellent heat dissipation and provides an accurately controlled continuous slip action for constant web tensioning. Tension levels are in direct proportion to air pressure applied.
Unit of Measure

Design Features

N/A

  • New friction material lasts longer with less wear on mating copper.
  • Copper alloy wear plates increase heat transfer.
  • Hub spline provides perfect alignment of rotating discs.
  • External air & water connections.
  • Release springs ensure complete disengagement.
  • High strength reinforced neoprene air-tube offers long service life.
  • Optional long stroke air tube available on 18" or 24" size units to increase life and standard maintenance intervals.
  • High thermal capacity.

Specifications

Assembly Number

 N/A 7-337-210-300-0
Dynamic Torque Rating (80 psi/5.5 bar)1 N/A 640000 lb.in 72308 Nm
Dynamic Torque Rating (100 psi/7 bar)2 N/A 800000 lb.in 90385 Nm

Heat Capacity for Series Water Hosing

 N/A 1000 hp746 kW

Heat Capacity for Parallel Water Hosing

 N/A 1500 hp1119 kW

Maximum Bore Size

 N/A 9.00 in229 mm

Parallel Water Flow 0 % Ethylene Glycol

 N/A 150 gpm568 lpm

Parallel Water Flow 30 % Ethylene Glycol

 N/A 195 gpm738 lpm

Parallel Water Flow 50 % Ethylene Glycol

 N/A 240 gpm908 lpm

Total Brake (Weight)

 N/A 4111 lb1865 kg

Disc & Gear (Weight)

 N/A 925 lb420 kg

Disc & Gear (Inertia)

 N/A 790 lb·ft²33.31 kg·m²

Pressure Drop Series Flow with 0 % Ethylene Glycol

 N/A 60 psi4.14 bar

Maximum Lining Wear

 N/A 0.8 in2.0 cm500 in³8.2 dm³

Water Volume

 N/A 570 in³9.3 dm³

Pilot Diameter A

 N/A 43.497/43.500 in1104.82/1104.90 mm

Bolt Hole Circle Diameter B

 N/A 42.500 in1066.8 mm

Pilot Diameter C

 N/A 36.378/36.375 in923.93/924.00 mm

Dimension D

 N/A 44.50 in1130.3 mm

Dimension F

 N/A 11.00 in279.4 mm

Dimension G

 N/A 1.43 in36.3 mm

Dimension H

 N/A 19.26 in489.2 mm

Dimension J

 N/A 0.25 in6.4 mm

Number of Bolt Holes

 N/A 16

Bolt Hole Size L

 N/A 13/16 in20.6 mm

Dimension M

 N/A 16.50 in419.1 mm

Dimension N

 N/A 14.00 in355.6 mm

Dimension Q

 N/A 1.19 in30.2 mm

Number of Inlet Ports - Thread Size

 N/A 4- 1/2 NPT

Dimension T

 N/A 17.38 in441.5 mm

Minimum U

 N/A 6.00 in152.4 mm

Maximum U

 N/A 9.00 in228.6 mm
Number of Coolant Inlets - Thread Size3 N/A 4 - 1.25 NPT

Manufacturer

 N/A Wichita Clutch

Actuation

 N/A Air Applied

Note

N/A Maximum water jacket inlet pressure is 60 PSI. Brakes with as great as 50 % higher torque capacity is available upon request.

For mounting, use socket head capscrews conforming to the ASTM-574-97a.

  • 1 Static torque will vary with temperature. Maximum air pressure is 100 PSI / 7 BAR. Minimum recommended air pressure is 3 PSI.
  • 2 Static torque will vary with temperature. Maximum air pressure is 100 PSI / 7 BAR. Minimum recommended air pressure is 3 PSI.
  • 3 Number of inlets and outlets are equivalent.
    (Consult factory for drawing before final layout.)