AIST Technical Paper Now Available

You can now access the technical paper: Affirmative Abrasion: Friction Materials and Industrial Braking Systems Demystified at the AIST bookstore.  Click on the following link to view the abstract:

CLICK HERE to view the PowerPoint which was presented at AISTech 2014 and the 2014 Crane Symposium.

Contact a Kor-Pak representative with any questions: (847) 680-0999

Frenos de rueda Johnson Industries

Kor-Pak ofrece frenos de rueda Johnson Industries de accionamiento mediante resorte y liberación por medios hidráulicos o neumáticos para montaje en placas laterales de bojes.

MONTAJE (diám.)
    LB (kN) PSI (BAR) Grado 5, pulg. (mm) lb (kg)
Abrazaderas de rueda
Brida 5000
130 (59)
Brida 7500
138 (63)
Brida 10 000
175 (80)
Brida 15 000
190 (86)
Brida 25 000
260 (118)
Frenos de rueda
Placa lateral
10 000
260 (118)
260 (118)


Kor-Pak Now Carrying Altra Industrial Motion Brands

Kor-Pak Corporation is proud to add another entree to its brake and clutch menu by  introducing  Altra Industrial Motion brands to its product mix .  Altra Industrial Motion is a publicly-traded company (NASDAQ: AIMC) and they have been at the forefront of innovation and expansion with its wide array of industrial products.  Through strategic acquisitions, Altra has been able to leverage its resources and assets to ingetrage complimentary business units into its product mix which creates a one-stop source for brake and clutch products.  The Altra brands include: Formsprag Clutch, Twiflex Limited, Svendborg Brakes, Marland Clutch,  Twiflex Limited, Ameridrives Couplings and Power Transmission, Boston Gear, TB Wood’s Incorporated, Bibby Turboflex, and others. Kor-Pak sells these excellent brands and can provide technical expertise, rebuild programs, twenty-four hour service and support, and fast lead times for Altra Products which makes Kor-Pak the ideal source for these reputable and field-proven product lines.  This is a natural and complimentary fit for both companies.  Kor-Pak possesses decades of experience working with brakes, clutches, and friction materials with applications around the world and the Altra Brands will enhance Kor-Pak’s ability to help customers achieve the optimal solution for their brake and clutch application. Please contact a Kor-Pak representative today to learn more about Altra Industrial Motion products at 1-888-2KorPak or by e-mailing  More information can be found at  Also visit for more information about Altra Industrial Motion.

Frenos Johnson Industries


 Acerca de Kor-Pak y Johnson Elevanja

Durante más de dos décadas, Kor-Pak Corporation ha sido proveedora y distribuidora de sistemas de frenado industriales Johnson y Elevanja. Johnson Industries Ltd. fue fundada en 1966 en Richmond, Columbia Británica. En 1993, la adquirió la empresa fabricante de frenosOLYMPUS DIGITAL CAMERAbritánica Elevanja. Las adquisiciones estratégicas, el ingenio, la ingeniería superior y el espíritu emprendedor de Johnson Industries le han permitido convertirse en una empresa fabricante de frenos de primer nivel con presencia mundial dominante.  En 2015, Elevanja celebrará su centésimo aniversario y Johnson Industries ofrece, por amplio margen, la cartera de frenos más diversificada e innovadora del mercado.  A principios de la década de 1990, Jim Koralik, fundador de Kor-Pak, introdujo los frenos eléctricos Johnson en la industria del acero de Estados Unidos; los frenos Johnson con impulsor, los de disco magnéticos y los de pinza de emergencia se volvieron populares en aplicaciones con puentes grúa (grúas EOT).  Actualmente, Kor-Pak cuenta con los recursos de conocimiento y la información sobre productos que se necesitan para la representación de los frenos Johnson Industries en varios mercados, como los de la producción de acero, la minería, la explotación petrolera y forestal y la navegación.  Brindamos servicios a nuestros clientes de todo el mundo, y les ofrecemos asistencia durante las 24 horas y los 7 días de la semana, para ayudarlos a lograr que sus equipos funcionen con la máxima eficiencia.  Póngase en contacto con un representante de Kor-Pak para obtener más información sobre los frenos Johnson Industries y permítanos brindarle todo lo que necesita en materia de sistemas de frenado industriales.

Los sistemas de frenado Johnson pueden cumplir con altísimos requisitos de torsión para aplicaciones exigentes.

Los sistemas de frenado Johnson pueden cumplir con altísimos requisitos de torsión para aplicaciones exigentes.

Frenos de disco y tambor Johnson Industries

Johnson diseña y manufactura varios productos en sus instalaciones, entre los que se incluyen frenos de disco de pinza hidráulicos, neumáticos, accionados por resorte y manuales, y sistemas de frenos para elevadores, mecanismos de transporte, sistemas de propulsión y otros equipos rotativos. Johnson también produce frenos de tambor y disco electromagnéticos y electrohidráuilcos con propulsor, utilizados en todo el mundo en grúas, elevadores y otros equipos de manipulación de materiales y transmisión de potencia.

Johnson designs and manufactures a range of products in house including hydraulic, pneumatic, spring-set or manually applied caliper disc brakes and brake systems for use on hoists, conveyers, propulsion systems and other rotating equipment.   Johnson also produces electro-magnetic and electro-hydraulic thruster drum and disc brakes, which are in service around the world on cranes, hoists and other material handling and power transmission equipment.

Frenos de parada y contra tormentas Johnson Industries

Johnson también diseña y manufactura frenos de parada y contra tormentas.   En los sistemas de frenos contra tormentas se incluyen abrazaderas para rieles manuales y automáticas, frenos para rieles y abrazaderas para ruedas. Estos sistemas de frenado de emergencia se utilizan en grúas, apiladoras recuperadoras, cargadoras y otros equipos de montaje sobre rieles.  

Ingeniería y frenos personalizados de Johnson Industries

Kor-Pak puede brindarle sistemas de frenado industriales personalizados, diseñados específicamente para su aplicación exclusiva.  Esto puede incluir asistencia en el proceso de selección de frenos, una visita al sitio y la gestión interactiva de proyectos, para diseñar e implementar el sistema óptimo y más eficaz del que pueda disponerse.


Kor-Pak to Exhibit at AISTech 2014

Kor-Pak to Exhibit at AISTech 2014

Visit Kor-Pak at AISTech 2014 at the Indiana Convention Center WebBanner_450x90-1in Indianapolis, IN

Booth 1278

May 5th-May 8th 2014

We invite you to visit our booth to learn more about how Kor-Pak continuously strives to innovate and remain at the forefront of industrial evolution.

Chris Koralik to present technical paper at AISTech 2014 titled “Affirmative Abrasion: Innovations and Advancement in Industrial Braking Systems”

Chris Koralik to Present at 2014 AISTech 2014

Chris Koralik will present his technical paper titled “Affirmative Abrasion:  Innovation and Advancement in Industrial Braking Systems” at the 2014 AISTech conference, as well as the 2014 Crane Symposium in Pittsburgh. 

Chris’ paper highlights the technological advancement in industrial braking systems in the context of EOT cranes and explains and analyzes the various subjective and objective factors associated with specifying the optimal brake to use for a given application.  Additionally, Emergency Duty Braking Systems are discussed, highlighting the critical role they play in insuring against certain risk factors that could cause crane failure.

Out with the old and in with the new: A New Phase of Crane Braking Systems

Control Panel for Air-Over-Hydraulic Braking System

Control Panel for Air-Over-Hydraulic Braking System

I have visited various facilities who are suffering from the liabilities associated with air over hydraulic braking systems.  This includes excessive maintenance due to the numerous moving parts associated with these packages, as well as the oil involved which can get quite messy (and freeze in the winter time).   Indeed, the hydraulic brake systems have served their purpose and successfully helped overhead cranes function for several years.  However, innovation and change is inevitable and we have now found a far superior braking system which supersedes its air over hydraulic predecessor.


AC Thruster Brake Used on Ladle Crane Main Hoist Application

Enter the AC Thruster Braking package which is used in conjunction with a foot pedal and Controller which consists of a variable frequency drive that allows for constant torque, allowing the end user to set accel/decel times (and numerous other fun and useful programs).  What makes it especially convenient is that these AC Thruster Drum brakes can be manufactured as “drop-in” replacements for the older brakes in various non-AISE dimensions including 14” and 18” (so neither real estate nor purchasing new brake wheels become an issue).

The benefits of using these newer packages far exceed their costs.  Permanently excluded are control cylinders, valves, pressure switches, hydraulic tubing, etc.  If used/installed properly, the AC Thruster Braking system (which works in both AC and DC applications), will require very little maintenance.  The brakes can now become holding brakes due to the VFD component of the system, and thus there is less wear and ultimately a much slower rate of depreciation.  The thruster can function under very high temperatures, especially if you use a special type of fluid which can withstand higher temperatures.  The price of a new braking system is not inexpensive, but the total cost of ownership is far less than its air over hydraulic counterpart.

Nothing beats the feeling of seeing a satisfied crane operator, and having a smooth, reliable, and low-maintenance braking system will invariably yield a sense of satisfaction for most anybody working with overhead cranes.