MTB series
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Electric Brakes MTB Series – Modular Tension Brakes One of the keys to the Warner Electric tensioning system is the Electro Disc tension brake. Electro Disc brake systems are capable of continuous slip from full roll to core diameter while providing outstandingly consistent and accurate control of unwind tension throughout the process. Electro Disc brakes operate smoothly and quietly. They respond instantly for emergency stops. Wear life is remarkable. Electronic control systems are easily interfaced with Warner Electric controls. Selection of the right brake for virtually any web processing application, from film to boxboard, is made possible through a building-block modular design. Four armature sizes Simple Maintenance Rugged design eliminates most moving parts. No diaphragms to break down. Asbestos-free brake pads are quickly and easily replaced. Brake wear does not affect torque as with some other types of brakes. Easy Installation Electro Disc tension brakes fit within tight space restrictions. Bushings adapt to most standard and metric shafts. Electrical installation replaces complex pneumatic plumbing, valves and compressors. Long Life, High Heat Dissipation A replaceable face armature disc provides extremely long life and maximum heat dissipation. Standard armature discs can be mounted singly or in tandem as shown here to increase the heat dissipation and torque capability. Accurate, Consistent Control The responsiveness of electric brakes coupled with specially designed controls provides accurate tensioning from beginning to end of roll, even during emergency stops and flying splices. Brake Modularity With one to sixteen magnets and single or double armature discs, Electro Disc tension brakes offer torque control and continuous slip capacity to meet a broad spectrum of requirements for virtually any web processing application. Patented Design The patented Electro Disc design is a proven concept, featuring a simple, yet powerful tension brake … easy-to-control, smooth, quiet and accurate. The speed of response and controllability, especially near zero tension, far exceeds that of other braking technologies. Simple. Powerful. Controllable. The electromagnetic principle, as applied to the Electro Disc tension brake, results in a brake design that features outstanding control from zero torque to the maximum limits of the brake. Complex moving parts are eliminated. Smooth Operation with Minimal Maintenance The friction pads are made of a unique composite of asbestos-free friction materials specially designed to produce smooth, powerful, yet quiet engagement between the magnet and armature discs. Since the replaceable friction pads and armature disc are the only parts which receive regular wear, the electromagnets can be reused indefinitely. An indicator notch on the friction pad, as well as an optional electric wear indicator, makes routine checking for remaining wear life quick and easy.

Electric Brakes MTB Series – Modular Tension Brakes MTB-II ... the second generation Wear Indicator Notch Magnet Carrier Armature Disc Replaceable Brake Pads Single disc, 2 magnets Dual disc, 12 magnets 77

Electric Brakes MTB Series – Modular Tension Brakes Principle of Operation Friction Pad Magnet Coil Armature Disc Warner Electric tension brakes operate on the electromagnetic principle. The brake’s two basic parts, an electromagnet and an armature disc, pull into contact as power is applied. At the center of the Warner Electric tension brake magnet is the electric coil, consisting of numerous layers of tightly wound wire, which gives Warner Electric brakes their torque capability. By simply increasing or decreasing the current to the electric coil, proportionately more or less braking...

Electric Brakes MTB Series – Modular Tension Brakes Thermal HP vs. Selection RPM Heat Dissipation Curves 10 9 1,2,3... Thermal Horsepower Emergency Stop Torque Curves Even number of magnets on all dual armature brakes Note: The following curves are for emergency stop torques. For normal running dynamic torque, multiply the emergency stop torque value by .54. Electro Disc – 10"* 360 Average Dynamic Stopping Torque (lb.ft.) Average Dynamic Stopping Torque (lb.ft.) Average Dynamic Stopping Torque (lb.ft.) Average Dynamic Stopping Torque (lb.ft.) 4 Mags. 3 Mags. 2 Mags. 1 Mag. * MTB II Dynamic...

Electric Brakes MTB Series – Modular Tension Brakes Model number designation Single Disc, 2 Magnets Model 15 — 0 — 2 Dia. of Armature Designates (1) Disc Number of Magnets Dual Discs, 4 Magnets Model 15 — 15 — 4 Dia. of Armature Designates (2) Discs Number of Magnets Notes: 1. Electrical data based on magnets connected in parallel. Torque Ratings per Magnet Armature Data Dual Discs, 12 Magnets Model 15 — 15 — 12 Dia. of Armature Designates (2) Discs Number of Magnets 80 Brake No. of Total Brake Armature and Hub* Size Armatures Inertia (lb.ft.2) Total Weight (lbs.) 10" 1 0.9 9.4 2 1.4 14.6...

Electric Brakes MTB Series – Modular Tension Brakes Modular Design … tailored to meet your requirements Mounting Configurations To select the proper size Electro Disc tension brake, it is important to understand that the brakes are fully modular. This feature will enables matching requirements for heat dissipation and emergency stopping torque to the tension brake configuration that optimizes these features. Flexible Mounting Thrust bearings, side loading, and special supports are a thing of the past! Universal Mounting Bracket With addition of a simple “L” shaped bracket (Customer...

Electric Brakes MTB Series – Modular Tension Brakes MTB-II Dimensions . . . with Universal Mounting Brackets 5.085 (129.2) MAX. 7.125 (181.0) MAX. 3.300 (83.8) 1/2-14 NPT (Shown with Dust Plug) Dual Armature Single Armature inch (metric) All Dimensions Nominal unless specified Armature Size * Stock bore is straight bore for use with Trantorque bushing. For replacement parts list and exploded view drawing, see page 162.