Concrete Crushers

What are concrete crushers?

Concrete crushers use powerful jaws to break reinforced or unreinforced concrete during primary demolition or controlled structural reduction. Jaw geometry, opening, crushing force and carrier stability determine where a crusher fits best.

This guide is intended as a practical starting point for comparing attachment types. Final compatibility always depends on the exact carrier, mounting interface, hydraulic setup, operating weight and the manufacturer limits for the complete configuration.

Common types and configurations

• Primary crushers are designed to attack standing structures and large concrete sections.
• Rotating crushers add positioning freedom for walls, beams and difficult approach angles.
• Combination designs can include replaceable teeth and cutters for mixed concrete and reinforcing steel.

Names vary between markets and manufacturers. Compare the working principle and rated limits rather than assuming two products with the same general name are interchangeable.

Selection criteria

Carrier class

Match attachment weight and centre of gravity to the excavator and to the intended boom position.

Jaw opening

Choose an opening that can accept the real beam, slab or wall thickness.

Crushing force

Compare force at relevant jaw positions rather than only the maximum headline figure.

Rotation

Continuous rotation improves positioning but adds hydraulic demand, weight and maintenance points.

Wear package

Check replaceable teeth, cutting edges, jaw plates and protection around pins and cylinders.

Working setup

• Approach the structure so the jaws close around a manageable section rather than levering the attachment sideways.
• Process material in a sequence that keeps the remaining structure stable.
• Separate reinforcing steel only with components designed for that function.

Plan the work area, machine position and material movement before starting. Attachment productivity depends on a stable carrier, correct operator technique and a setup that keeps hoses, couplers and structures away from avoidable impact.

Carrier and hydraulic compatibility

Check the carrier operating weight, lifting chart or rated capacity, approved mounting interface, auxiliary hydraulic flow and pressure, return-line requirements and electrical controls where applicable. Include the attachment, coupler, rotator, adapter and carried material when assessing the complete working load.

A physical connection does not prove compatibility. Use the attachment and carrier documentation for the exact models and configuration.

Maintenance and wear checks

• Inspect teeth, jaw plates, pins, bushes and cylinder protection at the start of each shift.
• Keep hydraulic couplings and hoses protected from sharp demolition debris.
• Monitor jaw play and replace wear parts before the base structure is damaged.

Short daily inspections are particularly valuable on attachments because pins, wear edges, hoses and working tools are exposed directly to impact, contamination and abrasive material.

Questions before choosing

Crusher or hydraulic breaker?

A crusher applies controlled jaw force; a breaker delivers repeated impact. The better tool depends on structure, access and desired material size.

Is rotation essential?

Not always, but it can reduce machine repositioning and improve jaw alignment.

Can a crusher handle rebar?

Only where the model includes approved cutters or jaw features for reinforcing steel.

Before ordering

Ask for the dimensional drawing, attachment weight, rated capacities, hydraulic requirements, mounting information, wear-part list and service intervals. Confirm how the attachment changes the carrier working envelope and whether additional guarding, case drain, electrical control, pressure limitation or hose routing is required.

The related machine, application and category guides shown with this page can be used to compare alternative attachment families for the same job.