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Posts Tagged ‘KKB’
Tuesday, October 26th, 2010
Wichita Clutch supplies standard Kopper Kool Brake (KKB) renewal kits in two configurations to make repairing and rebuilding your brakes easier and more cost effective. KKB Renewal kits include the following items:
- Copper Wear Plates
- ID/OD O-rings
- Nut’s and Bolts
- Springs if used in current rev. of Parts List.
- Friction Material, Rivets and Washers (partial)- or – Complete Drive Plate assemblies (complete)
 KKB Renwal Kit Parts Breakdown Contact your local Torque Inc., Application Engineer if you have any questions. They are happy to be of assistance.
Tags: Brake, KKB, Rebuilding, Wichita, Wichita Brake, Wichita Clutch
Posted in Kopper Kool Brake (KKB), Rebuilding, Tips, Wichita | No Comments »
Monday, October 11th, 2010
 Brake Drive Plate with teeth worn by excessive angular alignment. Above is a photo of a customer who was rapidly wearing teeth of a Wichita 118 KKB. This is a typical symptom of excessive angular alignment.
 Uncoiler Brake with rapid tooth wear, ready to check alignment.  Angular Alignment was over .300", Wichita specification is .009" TIR. Angular Alignment is checked by placing the magnetic base of a dial indicator of the shaft and indicating the face of the back water jacket at an 18″ diameter (for Wichita 118″ KKB). This application indicated over .300″ TIR, well beyond the maximum limit of .009″ TIR published by Wichita Clutch. This explains the rapid tooth wear of the Drive Plates and Hub. It was noted the high/low point wear at 3 o clock and 9 o clock with the 12 and 6 o clock positions being the same reading.
 Steel Uncoiler using Pillow Block Bearings that need to be restrained. Uncoiler is built using Pillow Brock Bearings to support the mandrel. This design, like others we see using Pillow Block Bearings, has the tension force in the same plane as the Pillow Block Bearing mounting surface. Under high tension operation there is a real potential for the bearings to slip. Most users correct this design issue by welding hard stops to the uncoiler base with jacking screws to restrain the bearings from sliding and allowing easy adjustment for brake alignment.
Tags: Alignment, Brake, Installation, KKB, Wichita, Wichita Brake
Posted in Kopper Kool Brake (KKB), Tips, Wichita | No Comments »
Sunday, July 11th, 2010
Wichita clutch Press Release detailing release of the new Water Cooled AquaMaKKs Brakes:
 Wichita AquaMakks Water Cooled Brake Wichita Clutch Press Relase – AquaMaKKs.
Tags: Brake, KKB, Wichita Clutch
Posted in Kopper Kool Brake (KKB), News Article, Wichita | No Comments »
Sunday, July 11th, 2010
Machine Design Article detailing Wichita Clutch AquaMaKKs water cooled brakes:
Wichita AquaMakks Water Cooled Brake Water-Cooled Clutches and Brakes | Machine Design.
Tags: Brake, KKB, Uncoiler, Wichita Clutch
Posted in Kopper Kool Brake (KKB), News Article, Tension Control, Wichita | No Comments »
Sunday, July 11th, 2010
Machine Design Article detailing Wichita Clutch new Composite Water Jackets used for AquaMaKKs and Kopper Kool Brakes.
 Compsite Water Jacket for New Wichita AquaMakks Wichita AquaMakks Water Cooled Brake Beefy Clutches, Brakes Go Svelte Thanks to Composite Water Jacket | Machine Design.
Tags: Brake, KKB, Wichita Clutch
Posted in Kopper Kool Brake (KKB), Tension Control | Comments Off
Tuesday, May 11th, 2010
Precise unwind tension control sometimes requires brakes with a wide torque range to meet the wide range of materials (tensions) and widths run on a line. This is further complicated by the larger rolls (coils) to be unwound (uncoiled). To put this in perspective, a roll with 72″ OD and 6″ core will require a 12:1 decrease in air pressure from start to core. If you start at 60 PSI, you would finish the roll at 5 PSI, this leaves little adjustment for a wide tension range for lighter/heavier materials and wider/narrower widths.
Wichita KKB brake designs are very proportional from8 PSI to 80 PSI or a 10:1 ratio, the high performance ModEvo design is good to 3/4 PSI for a 20:1 ratio. To accommodate the demands of modern equipment, Wichita has many creative designs available to increase the range of control of unwind brakes by using multiple actuators.
Below is a photo of a special “Tandem” Wichita ATD 208/214 KKB (Kopper Kool Brake) used on Pro Eco slitting lines with the Core-Flex unit for exit tension/elongation control. These lines require precise uncoiling tension control for a wide range of widths and gauges of material, using a “Tandem” Wichita KKB allows precise control over a 53:1 range. Using the Kopper Kool design with proper water cooling system allows for high speed operation up to 140 HP. In addition to the ATD 208/214 Tandem KKB, Wichita offers other size combination’s with even higher capacity with precise control.
 Tandem Wichita KKB For Paper, Film and Foil processing, Wichita Clutch offers the ModEvo modular Tension Brake. This family of products allows Torque Inc. application engineers to select an optimal solution for your application with a variety of rotor’s, friction material and actuators. We have had good success using these products on low speed coil processing lines, where heat is limited and the cost of operating a KKB (Kopper Kool Brake) is prohibitive. In addition, we can engineer unique multiple caliper solutions using Kobelt Calipers for heavy duty applications.
 Wichita ModEvo Tension Control Brake
Tags: Brake, KKB, ModEvo, Uncoiler, Unwind, Wichita Clutch
Posted in Kopper Kool Brake (KKB), Tension Control, Wichita | No Comments »
Monday, April 19th, 2010
In order to rebuild a Wichita KKB the Waterjackets need to be clean from corrosion and have adequate o-ring grooves and copper support ribbing.
 Wichita KKB Waterjacket beyond repair  Wichita KKB waterjacket after HCL cleaning and painting
Tags: Brake, KKB, Rebuilding, Wichita
Posted in Kopper Kool Brake (KKB), Rebuilding, Tips, Wichita | No Comments »
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