CR series electric crusher

What is an electric crusher and how does it work?

An electric crusher is a machine designed to reduce hard materials such as demolition aggregates, natural stone, marble, reinforced concrete, and ceramics into controlled sizes. The CR series from CM Srl is an electric jaw crusher: the material is crushed between a fixed jaw and a movable jaw that moves in an oscillating motion, driven by an internal three-phase electric motor.

The process is simple but extremely effective:

1. The material is loaded into the loading hopper, which conveys the aggregates to the crushing chamber.
2. The jaws exert strong pressure, crushing the material to the set size, which for the CR series is approximately 10 to 80 mm.
3. The crushed material exits at the base of the crusher and can be conveyed onto a conveyor belt or other screening equipment.

The energy required for the process is supplied by a 380 V power supply, which makes the crusher independent of combustion engines, diesel fuel, and tanks, with benefits in terms of both efficiency and maintenance.

Difference between an electric crusher and a diesel crusher

Compared to a similar crusher with a diesel engine, an electric crusher, such as the CR:

• requires less routine maintenance, as there are no filters, engine oil, or components typical of combustion engines;
• is quieter and suitable for working in sensitive environments (residential areas, tunnels, enclosed spaces);
• reduces operating costs where connection to the mains electricity supply is available or where efficient generator sets are used.

For construction sites that operate continuously, with a stable power supply, an electric crusher is often the most economical and sustainable solution in the medium term.

CR Series Electric Jaw Crusher – Overview

The CR series from CM Srl is a compact mini electric jaw crusher, designed specifically for small and medium-sized construction sites that need to handle significant quantities of material to be crushed on site.

Main technical features

The CR range mainly includes two models, the CR 400 and CR 600, which share the same construction philosophy but with different dimensions and capacities.

• The CR 400 has a crushing mouth of approximately 400×200 mm and weighs around 1000 kg.
• The CR 600 offers a 600×300 mm inlet, with a weight of approximately 1500 kg, ideal for those who need a higher production capacity.

Both models work with an adjustable opening ranging from approximately 10 to 80 mm, allowing for both finer materials for substrates and fillings and larger pieces for drainage and load-bearing layers. The compact structure and the presence of a loading hopper and support as standard allow for quick installation, with a small footprint that easily adapts to confined construction site spaces.

Key features of the CR series

Several features make the CR electric crusher a professional electric crusher, suitable for those looking for a reliable yet easy-to-use machine:

• Easy to handle thanks to its low weight and compact design.
• Protected control panel, which protects the electrical components from impact and dust.
• Quick and easy maintenance, with easy access to parts subject to wear.
• High-strength manganese cast crushing plates, designed to last even in the presence of abrasive materials.
• Internal three-phase electric motor, a solution that reduces bulk and the risk of damage.

Extras and configurations

The standard model is excellent but may not be suitable for everyone. For this reason, CM Srl offers various additional options to adapt the mini electric crusher to the needs of each construction site:

• engine configurations with specific voltages and currents for non-EU markets;
• customised loading hoppers to facilitate feeding from excavators, shovels, existing conveyor belts, or for integration with fixed systems;
• customised supports, including raised or lowered ones, for combination with conveyor belts, screens, or operational requirements;
• output conveyor belt for conveying crushed material, which can also be used at the inlet to feed the crusher;
• magnetic separator for removing steel reinforcement;
• single or double-stage vibrating screen for finer grain size selection directly downstream of the crusher.

Application of the CR electric crusher in marble processing

In marble processing companies and workshops specialising in the manufacture of marble products, the electric jaw crusher is used directly within the factories to crush production waste, as well as being integrated into automated production processes. Defective slabs, offcuts, and marble residues are thus reduced to fragments of controlled size, allowing the material to be recovered and reused within the same production cycle.

Costs, savings, and sustainability of the electric crusher

Crushing materials directly on site allows companies to achieve significant savings on the costs of disposal and transport of aggregates, which are often one of the most significant items of expenditure in demolition activities. The crushed material can be reused immediately on site for sub-bases, fillings, or construction site tracks, reducing the need for landfill and the supply of new aggregates. In many cases, these economic benefits allow the investment in the electric crusher to be quickly amortised.

From an environmental point of view, the use of an electric crusher contributes to a significant reduction in the impact of the construction site. The absence of a diesel engine means lower direct emissions, reduced fuel consumption, and, consequently, a reduction in indirect emissions, especially when the electricity comes from renewable sources. This approach promotes more sustainable management of construction and demolition waste, in line with European regulations and the environmental criteria required in “green” specifications, representing an important competitive advantage for companies operating in the sector.

Request a quote for your CM Srl electric crusher now

If you are looking for a compact, reliable electric jaw crusher designed for recycling aggregates on site, the CR series from CM Srl is a solution tailored to the needs of construction companies, demolition companies, and businesses involved in material recovery and recycling. Contact CM Srl for personalised technical advice, to configure the options and fittings best suited to your type of work, and to obtain a detailed quote for your next electric crusher!