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MICO, Incorporated
MICO Multiple Disc Brakes

MICO Multiple Disc Brakes

Product catalog summary

Introduction
MICO, Inc. specializes in the design and manufacture of hydraulic components and brake systems for off-road markets. Their facilities are located in North Mankato, Minnesota, Ontario, California, and Empalme, Sonora, Mexico. MICO is ISO 9001 and ISO 14001 certified, emphasizing quality and continuous improvement.

Product Overview
MICO offers a range of products including actuators, brake locks, brakes, controls, cylinders, electrohydraulics, master cylinders, and valves. Their multiple disc brakes are designed for heavy-duty machinery and off-highway vehicles, providing reliable performance and reduced maintenance.

Spring Apply, Hydraulic Release Multiple Disc Brakes
These brakes are engineered for safe and controlled braking, particularly in applications like swing drives and winches. They are spring-applied and hydraulically released, ensuring maximum torque when hydraulic pressure is absent. The design addresses common issues such as piston breakage and low torque pressure drag.

Applications
MICO brakes are used in various industries including forestry, agriculture, heavy construction, mining, and airport support. They are also suitable for in-plant and warehouse equipment.

Advantages
MICO brakes feature simplified disassembly and assembly, large diameter discs for better heat dissipation, and extensive testing for reliability. They are interchangeable with other fail-safe brakes and feature a unique balanced piston design.

Catalog Code Explanation
The catalog code system allows customization of brakes based on specific needs. Options include oil cooling, speed sensors, double bearings, and Viton seals for compatibility with different fluids.

General Brake Information
Brake torque values are dry static torque ratings, with specific guidelines for release pressure and hydraulic input pressure. The brakes are designed to prevent contaminants and provide consistent torque and long life.

Modular Design Features
MICO's modular design includes large diameter spline shafts, spring-loaded hydraulic release, and high-strength ductile iron construction. These features eliminate common problems in competitive designs and allow for economical replacement of existing fail-safe brakes.

Specifications
The brakes feature standard SAE mounting flanges, high-strength ductile iron construction, and a sealed environment to prevent contamination. Key specifications include:

Torque range: 113 - 542 N·m (700 - 6000 lb·in)
Release pressure range: 8.3 - 23.8 bar (120 - 345 PSI)
Maximum operating pressure: 206.8 bar (3000 PSI)
Maximum speed: 4000 RPM
Fluid type: Mineral base hydraulic oil
Maximum operating temperature: 132 °C (270 °F)

Features and Benefits
The brakes are designed with several features to enhance performance and longevity:

Thick discs to prevent wear and extend life
Large inlet ports to prevent sluggish response
One-piece separator design to minimize piston stress
High-strength cover bolts and chrome silicon die springs for durability
Non-metallic lining materials for high torque and low release pressure

Operation
The braking system operates using a pack of rotating friction discs and stationary separator plates. The brakes are self-applying, with hydraulic pressure used to release them. Zero pressure results in maximum brake torque.

Optional Features
Optional features include pressure override models for limited service braking and configurations for different mounting and spline options.

Recommendations
For optimal performance, avoid using oils with slippery or antiwear additives that may cause the brakes to slip. Recommended lubricants include ATF, SAE 10 or SAE 20 oil, or Mobil DTE oil.

Conclusion
MICO brakes are engineered for high torque capacity, reliability, and ease of installation, making them suitable for various industrial applications, including winch systems.

Posi-Torque Brake

Engages while lifting loads, allowing travel in one direction due to an internal overriding clutch.
Automatically holds the load in position once lifting stops, ensuring no lag or drift.
Provides runaway protection when lowering loads by engaging automatically if hydraulic pressure drops.

Pressure Override Brakes

Secondary system for service braking with fail-safe backup.
Features standard SAE mounting flanges and oil-cooled options for added capacity.
Torque range: 135.6 - 452 N·m (1200 - 6000 lb·in).
Release pressure range: 5.5 - 24.1 bar (80 - 350 PSI).

Large Wheel Mount Brakes

Designed for direct mounting to wheels with heat-treated 8620 shafts.
Self-contained, dry-design package with full system pressure capability.
Torque range: 904 - 1695 N·m (8000 - 15,000 lb·in).
Release pressure range: 21.4 - 34.5 bar (310 - 500 PSI).

General Notes

All brakes are designed for specific configurations and applications, with detailed specifications available upon request.
Installation and operational guidelines are provided to ensure optimal performance and safety.

Specifications
The document details the specifications of a wet multiple disc brake system. Key parameters include a release pressure ranging from 17.9 bar (260 PSI) initially to a maximum of 137.9 bar (2000 PSI) continuously. The torque rating is 1356 N·m (12,000 lb·in) static, with a required oil volume of 32.8 cm³ (2 in³) to release the brake. The system operates at a maximum speed of 3200 RPM and weighs approximately 24 kg (53 lb). It uses mineral base hydraulic oil.

Design and Configuration
The document outlines various mounting configurations, including SAE B-Mount, C-Mount, and D-Mount options, with specific dimensional references provided for different pages. It also mentions the catalog code and model numbers for different configurations.

Product Line
MICO, Inc. offers a wide range of products including brakes (caliper disc, multiple disc, brake locks), controls (electronic, hydraulic throttle, pedal), cylinders (drive axle brake actuators, slave, wheel, master, boosted), and valves (accumulator charging, electrohydraulic brake, park brake, pressure modulating).

Additional Information
The document emphasizes MICO's commitment to accurate information and continuous product improvement, noting that specifications are subject to change. Contact information for MICO, Inc. is provided for further inquiries.

Catalog excerpts

Innovative Braking and Controls Worldwide Multiple Disc Brakes posi-torque winch brakes, pressure override brakes, wheel mount brakes, and driveline brakes Spring Apply Hydraulic Release Multiple Disc Brakes MICO, Inc.

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Why choose MICO? MICO, Inc. designs, manufactures and markets hydraulic components, controls, and brake systems primarily for off-road markets. We have manufacturing facilities in: North Mankato, Minnesota U.S.A. Ontario, California U.S.A. Empalme, Sonora, Mexico Many of the world’s largest off-highway OEMs value the knowledgeable staff at MICO and work with us to make their products better. Our custom-engineered products are designed with the customer requirements as the primary driver. It is our intent to help customers build their systems with our expertise in hydraulic components, braking...

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Swing Drive Equipment Forestry Equipment Agricultural Equipment Heavy Construction Equipment Mining Equipment In-Plant & Warehouse Equipment Airport Support Vehicles MICO, Inc.

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Representation and Service In addition to the numerous design improvements over competitive models, you also get MICO representation and service which is second to none. Direct Access to MICO Engineers Involving the customer directly in product design and testing ensures that customer requirements are met. Our engineering staff has a very strong background in spring apply, hydraulically released brakes. As new technology becomes available, it is integrated into MICO products and when technology is not available, MICO Engineers develop it. Simplied Disassembly and Assembly Features such as inboard...

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Multiple Disc Brakes (spring apply, hydraulic release) MICO engineers are innovators in the design of spring apply, hydraulic release multiple disc brakes, wheel brakes, closed-output motor brakes, posi-torque winch brakes and more. The engineers are committed to improving the product while reducing cost. Simple, straight forward designs result in rugged brake products. These products require less maintenance because they are designed with fewer moving parts. They are truly superior in reliability and performance. construction, material handling, agriculture, mining, sanitation, utilities and...

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Catalog Code Explanation The catalog code numbering system allows you to construct the brake by combining the variables that meet your needs. Catalog code number example: 3A-060618-M. A production number will be assigned by our Engineering Department upon receipt of your order. Production order number example: 13-538-004. NOTE For brake combinations that are not currently established, but possible, quotation and assignment of part number must be predicated by receipt, review, and acceptance of applicable multiple disc brake data sheet. Options Explanation Z = OIL COOLED OPTION, designated as...

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General Brake Information 1. Brake torque values listed are dry static torque ratings except for the C-Mount Posi-Torque Brakes (page 26), Compact Wheel Mount Brakes (page 36), and Driveline Multiple Disc Brakes (pages 40-45). a. For brakes with Z option (oil-cooled) actual torque is 67% of the dry torque listed. b. Static torque may vary ± 10% from specied values. 2. Initial release pressure is the point where the amount of hydraulic pressure to relieve the spring force on the rotor stack has zero brake torque with no running clearance. 3. Full release pressure is the amount of hydraulic pressure...

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Multiple Disc Brakes Modular Design Cover, Spring Plate and Pressure Plate constructed of heavy duty ductile iron. Features Large diameter spline shafts virtually eliminate spline battering Versatile modular design Spring loaded, hydraulically released Sealed environment - isolation from contaminants Nitrile case seals High strength ductile iron construction Standard SAE mounting anges Powerful Chrome Silicon Die Springs automatically apply the brake's disc packs when hydraulic pressure drops. Benets Eliminates problems found in competitive brake designs, such as piston breakage, piston cocking,...

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Increased Bearing Support improves shaft alignment between motor, brake and driven load. Spline Shafts are constructed of high quality, heat treated 8620 steel for high strength and long life. Larger pitch diameter splines for shaft to disc interface give, in many cases, a seven to one advantage in strength. Improved lower tooth loading helps to eliminate spline battering. Inboard Oil Seal allows for gear box lubrication of the bearing. Friction Discs use sintered metallic linings and 1035-1050 steel core material for long life. Large disc diameters are possible because the balanced piston design...

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A-Mount Brakes, Modular Design FEATURES Low release pressures - ideal for use with closed-loop hydrostatic systems Heat treated 8620 steel shafts for high strength and long life Rugged heavy-duty construction with torques to 1017 N·m (9000 lb·in) Unique balanced piston design For detailed information on other model numbers go to www.mico.com/service-literature/ installation-drawing-search. If the drawing is not available, contact MICO for more information. millimeters inches OUTPUT FACE SPECIFICATIONS Torque range at 0 bar (0 PSI) back pressure . . . . . . . . . . . . . . . . . . . . . . . ....

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CATALOG CODE (See NOTE on the top of page 6) Not all of the brake combinations are possible due to certain design limitations. NOTE: Dry design only, not for wet applications. OUTPUT FACE (Available separately or in combination) D - Double Bearing S - Speed Sensor OUTPUT SPLINE / INPUT SPLINE 06/06 10/10 14/14 25/25 INPUT FACE SAE Designation 06 = 25.4 mm (1.00 in) Diameter 6B 10 = 25.4 mm (1.00 In) Diameter Keyed 14 = 14T 12/24 25 = 31.8 mm (1.25 in) Diameter Keyed For other congurations, consult a MICO Applications Specialist. CATALOG CODE MODEL NUMBER Initial Release Pressure bar (PSI) Full...

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C-Mount Brakes, Modular Design FEATURES More retarding torque than competitive models Heat treated 8620 steel shafts for high strength and long life Numerous mounting congurations available Compact modular package simplies mounting Low release pressures, ideal for use with closed-loop hydrostatic systems Unique balanced piston design Rugged heavy-duty construction For detailed information on other model numbers go to www.mico.com/service-literature/ installation-drawing-search. If the drawing is not available, contact MICO for more information. INPUT END millimeters inches OUTPUT FACE SPECIFICATIONS...

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All MICO, Incorporated catalogs and technical brochures