Friction Material Caliper Brakes Disc Rotors Tension Control by Entec National Inc

Entec National, Inc. was founded in 1984 by Craig C. Conklin. With over 30 years of experience in designing and engineering braking systems, Mr. Conklin has built Entec National, Inc. into a competitive leader in the Industrial Braking Market. Entec National, Inc. is and has been a major supplier of large industrial and mining friction braking systems for large inertia machines. We are an engineering dominated company with a systems approach.

Entec currently manufactures Caliper Disc Brakes that encompass four (4) specific yet different actuation modes.
500 -- Spring Set / Magnetic Release
600 -- Hydraulic Set (Infinitely Variable)
700 -- Magnetic Set (Infinitely Variable)
800 -- Spring Set Hydraulic Release (Infinitely Variable)

Each mode encompasses five (5) physical sizes, all being the same overall plan. Broken into series as follows:
From small to large. 100; 103; 101; 102; and 105.

Entec's 500 Series Caliper Brakes are Spring Set Electromagnetically released calipers designed to replace the standard A.I.S.E. drum brake with series windings. These brakes are excellent with D.C. mill motors and can accommodate over 80% of the steel mill applications. The following is a short list of applications:

Conveyors, Portal Cranes, Overhead Hoists, Motion, Hot Metal, Scrap/Charging, Bar, Coil Stacker/ Reclaimer, Coal and Steel Industries, and HydroTurbine applications.

"Features include: common A.I.S.E. friction pads, high energy fiberglass lining, mounting frames allow for dual calipers torques from 650 lbs. to over 6000 lb. ft., low running temperatures, simple friction puck replacement, and multifunctional operation on single brake disc, i.e. hydraulic or magnetic for bridge travel and spring set for parking.
*Dual spring set electromagnetic release for redundant safety."

Entec's 600 Series design is a Pressure Set Spring Release Caliper Brake. Hydraulically applied caliper with a positive spring retraction of hydraulic pistons. *The 600 Series is designed to replace the A.I.S.E. shoe brake in most sizes. The following is a short list of applications:

Tension and Coast Control, Massive Stopping, Paper Mills, Steel Mills, Aluminum, and Winch Tension

"Features include: Air, Hydraulic, or Brake Fluid choice, single friction pad retention, pressures can exceed 1,500 psi massive thermal capacity, caliper, mount, and rotor are a single bolt down entity, and torques up to 90,000 lb ft."

Entec's 700 Series Brakes are Magnetically Set (Infinitely Variable) VMF Brakes. Variable Magnetic Field = Variable Torque for Bridge Control. Infinitely Variable Torque Control, Dyanamic Stopping Hoist Bridge Control, and Tension Control are few of the applications related to the 700 Series. *Patent Pending.

"Features include: single pin retained magnetic pole carrying friction shoes, truncated horseshoe magnet, dual circuit pathway rotor armature, minimum power requirements, standardized parts, zero hydraulic leaks, mess, fire, or hazard."

Entec's 800 Series Brakes are Spring Set Hydraulic Release Caliper Brakes. Common caliper uses three different Belleville Spring stacking arrangements. The 800 Series Brake line has been the workhorse and most popular brake in terms of sales and demand in the industrial braking market. The following are applications where the 800 Series has been used.

Hoist, Regenerative Downhill Conveyors, Winch Tension, Mining, and Massive Stopping Power

"Features include: specific shaft friction block inserts into and out of puck holder in seconds, simple wear adjustment, dual position brake mount, single pin retained, back loading puck holders, and mounts as easily as a motor or gearbox."

Entec National, Inc. also provides two high quality controls. The PCFC Control, which is a "Simple Caliper Brake System", that can work with any drive type; however, it was originally designed to work with delay type fluid couplings. The PCFC Caliper Brake System controls the downhill regenerative load during a stop mode.

"Benefits: It reduces the stress on structure, drives, pulleys, and the belt. The system has back-up power in the event of an outage (UPS). The system has a manual override emergency stop provision."

The second control is the PLC Control, which is considered the "Smart Caliper Brake System", that can do everything the PCFC control system is designed for plus control the Motor Input. The Smart System modulates brake load either increasing or decreasing brake torque to insure a constant acceleration or deceleration, independent of the load, i.e., it does not care if the equipment is fully loaded, partially loaded, or unloaded. It accelerates or decelerates in a specific time, i.e., 15 seconds, 30 seconds, 60 seconds, 120 seconds, etc.....

"Benefits: Hydraulic components are contained in a Nema 4 enclosure, reduces the stress on structure, drives, pulleys, and the belt. The system has back-up power in the event of an outage (UPS). The system has a manual override emergency stop provisions, the system provides consistent acceleration/deceleration, independent of inertial load."