Cone Crusher

CMB Cone Crushers

Efficient Crushing for Mining and Aggregate Applications

McLanahan CMB Cone Crushers are robust compression-type crushers designed for the efficient reduction of medium to hard materials in mining, aggregates and other demanding applications.

The crusher reduces material by compressing it between a moving crushing member and a stationary concave liner. As material moves through the crushing chamber, the progressively smaller opening reduces the material to the required product size.

CMB Cone Crushers can achieve reduction ratios typically ranging from 4:1 to 6:1, with higher reduction ratios possible in certain coarse-crushing applications.

How CMB Cone Crushers Work

Material is continuously choke fed into the crushing chamber to maintain a full chamber and promote efficient inter-particle crushing.

The main shaft and eccentric mechanism create the required movement of the crushing head. Material is compressed between the moving mantle and the stationary concave liners, progressively reducing in size as it moves downward through the chamber.

The crushed material exits through the bottom of the crusher once it reaches the required size.

Closed-Side Setting (CSS)

The Closed-Side Setting (CSS) is the gap between the mantle and concave at their closest point. It is one of the primary factors controlling the final product size.

A smaller CSS generally produces a finer product, but it also reduces the crusher's throughput capacity. As a general guide, approximately twice the CSS can be used as an indication of the top size of the product, although actual product gradation depends on the application and operating conditions.

Choke Feeding

Proper choke feeding is essential for achieving stable operation, good product shape and high throughput.

A well-maintained choke feed keeps the crushing chamber full and promotes inter-particle crushing. McLanahan recommends uniform distribution of feed around the crusher inlet to maintain consistent performance.

Hydraulic Adjustment and Tramp Relief

CMB Cone Crushers incorporate hydraulic adjustment, allowing the discharge setting to be adjusted quickly and easily.

The hydraulic system also provides tramp metal relief, automatic reset and a chamber-clearing function. If uncrushable material enters the crushing chamber, the system allows the upper frame to lift, providing a path for the material to pass through and helping protect the crusher.

Applications

CMB Cone Crushers are suitable for a wide range of applications, including:

• Mining and mineral processing

• Aggregates

• Quarrying

• Sand and gravel

• Secondary crushing

• Tertiary crushing

They are designed for medium to hard materials and can handle both dry and wet feed, provided the material is not excessively sticky.

Key Features & Benefits

• Reduction ratios typically from 4:1 to 6:1

• High output with good product shape

• Hydraulic discharge setting adjustment

• Hydraulic tramp metal relief

• Automatic reset system

• Chamber-clearing function

• Large feed opening

• Robust cast-steel construction

• Roller-bearing design

• Low maintenance requirements

• Multiple chamber and liner configurations

• Compact lubrication system

• High-strength alloy-steel main shaft

• Suitable for secondary and tertiary crushing applications

Product Performance

Actual capacity and product gradation depend on several factors, including:

• Feed size and gradation

• Material hardness

• Compressive strength

• Material characteristics

• Feed distribution

• Crusher speed

• Applied power

• Closed-Side Setting (CSS)

• Liner configuration

For optimum performance, the crusher should be supplied with a well-graded and evenly distributed feed.

Why Choose McLanahan CMB Cone Crushers?

McLanahan CMB Cone Crushers combine robust construction, hydraulic adjustment and effective tramp relief with a design focused on reliable crushing performance and easy maintenance.

Cube Solutions provides McLanahan crushing solutions for customers in Egypt and the region, including equipment selection, application support, supply and technical assistance.

Contact Cube Solutions to discuss your crushing application and determine the appropriate CMB Cone Crusher configuration for your material and required product size.