Mechanical concrete crusher — the attachment that turns the excavator from a digging machine into concrete-crushing equipment directly on site. The serrated jaws made of special steel, hydraulically driven by the auxiliary circuit of the host excavator, fragment reinforced concrete, plain concrete, stone and asphalt directly in the jaws, without transporting the material to a separate crusher. This mechanical concrete crusher removes an additional piece of equipment and an entire series of transport trips from the demolition process.
The jaws with a serrated, wave-shaped profile are designed for progressive gripping and fragmentation, distributing the crushing force across the entire contact surface and reducing wear compared with single-tooth jaws. The 360° hydraulic rotation of the jaws allows optimal orientation relative to the material to be crushed without repositioning the excavator.
Key advantages of the mechanical concrete crusher
• Crushing directly on site, without additional equipment — the existing excavator becomes both a demolition machine and a mechanical concrete crusher at the same time. There is no longer a need for a separate mobile crusher, for feeding it, or for additional operating staff.
• Serrated jaws with a wave profile — the serrated profile distributed across the full width of the jaw ensures a firm grip on concrete blocks and efficient progressive fragmentation, including for reinforced concrete with dense rebar.
• 360° hydraulic rotation — the jaws orient at any angle relative to the material to be crushed, without repositioning the excavator. Essential for work in tight spaces or for crushing structures at height.
• Mounting on the excavator's standard coupling — it mounts on the excavator arm exactly like any other bucket. It requires no modifications to the host excavator or additional hydraulic installations beyond the standard auxiliary circuit.
• Aggregate reusable on the spot — the crushed material stays on site and can be redistributed as fill, sub-base or ballast. It eliminates the cost of transporting waste and of bringing in fill material from outside.
• High-strength steel structure — the frame and jaws of this mechanical concrete crusher are made of special steels for severe-impact applications, ensuring durability under intensive use in reinforced concrete demolition.
• Compatible with multiple excavator classes — available in variants calibrated for excavators from 6 to 45 tonnes, with the hydraulic force and mass dimensioned to suit the machine class.
• 60-month warranty — extended coverage for a mechanical concrete crusher in intensive use on demolition sites, with spare parts in stock at UZINEX.
Technical specifications — mechanical concrete crusher
| Parameter | Details |
|---|---|
| Product type | Mechanical concrete crusher — jaw bucket for excavator |
| Drive system | Hydraulic — the auxiliary circuit of the host excavator |
| Jaw type | Serrated with a wave profile — high impact-resistance steel |
| Bucket rotation | 360° hydraulic |
| Mounting | Standard excavator quick coupler |
| Compatible excavators | 6–45 tonnes (variants calibrated per class) |
| Processable materials | Reinforced concrete, plain concrete, stone, asphalt |
| Structure | High-strength steel resistant to impact and abrasive wear |
| Main applications | Demolition, concrete recycling, construction waste reduction |
How the mechanical concrete crusher works on an excavator
This mechanical concrete crusher mounts on the excavator arm in place of the standard digging bucket. The operator positions the jaws above or to the side of the concrete block, closes the jaws hydraulically and fragments the material through the crushing force generated by the hydraulic cylinders.
The wave-shaped serrated profile of the jaws grips the concrete and fragments it progressively — first cracking, then fragmentation into pieces of controlled size. The concrete reinforcing bars are bent and separated from the concrete mass in the same work cycle, without an additional cutting stage.
The 360° hydraulic rotation allows the operator to orient this mechanical concrete crusher for the optimal grip of each block, regardless of the excavator's position. The crushed material falls directly at the foot of the demolished structure and can be redistributed immediately with the same jaws or with the standard bucket.
Suitable applications for the mechanical concrete crusher
This mechanical concrete crusher is the equipment chosen by demolition firms that want to reduce the number of machines on site and the total cost of the demolition and concrete-waste removal process.
The demolition of residential and industrial buildings made of reinforced concrete is the main application. Walls, floor slabs, foundations and columns are crushed directly during the demolition phase, with the resulting aggregate staying on site for reuse. An excavator equipped with this mechanical concrete crusher effectively replaces the classic team consisting of a demolition excavator plus a separate mobile crusher.
Rehabilitating roads and platforms with worn concrete layers benefits from the same logic: the concrete layer is broken and crushed directly by the excavator using this mechanical concrete crusher , the fragments are redistributed as a sub-base for the new layer, eliminating both the transport of old concrete and the supply of new foundation material.
Selective demolition in buildings with a mixed structure — concrete and masonry, concrete and metal — is facilitated by the 360° rotation of this mechanical concrete crusher , which allows precise orientation relative to the concrete elements without damaging the adjacent structures that must be preserved.
Compatibility with your excavator
This mechanical concrete crusher is available in variants calibrated for excavator classes from 6 to 45 tonnes. The selection of the correct variant is based on three parameters of the host excavator: operating tonnage, the pressure and flow of the auxiliary hydraulic circuit, and the type of existing coupling.
UZINEX engineers verify hydraulic compatibility before confirmation — the pressure and flow available on the excavator's auxiliary circuit must match the requirements of the mechanical concrete crusher to ensure the rated crushing force and prevent overloading the system. Compatibility with the main excavator brands — Caterpillar, Komatsu, Hitachi, Volvo, Liebherr, Doosan, Hyundai, JCB — is confirmed at order based on the machine's technical data.
The mechanical concrete crusher versus the mobile crusher — when to choose which
UZINEX offers both solutions for processing concrete on site. The right choice depends on the processing volume and the way of working.
This bucket-type mechanical concrete crusher is the right choice when you already have an excavator on site and want to add crushing capacity without an additional machine. The investment is lower, the logistics simpler, and a single operator manages both demolition and crushing.
The self-contained mobile crusher is preferred for large volumes of material that must be processed quickly and continuously, where hourly productivity takes priority over logistical simplicity. If you regularly process tens of tonnes daily, a dedicated mobile crusher is more efficient per tonne processed.
Frequently asked questions about the mechanical concrete crusher
What is the maximum concrete block size it can crush?
The maximum block size depends on the jaw opening of the specific variant. Blocks that fit within the maximum jaw opening are crushed in a single closing. Larger blocks require pre-fragmentation with a hydraulic rock breaker or several cycles. UZINEX engineers specify the maximum opening at the quotation stage — free technical consultancy .
Is the standard auxiliary hydraulic circuit sufficient?
This mechanical concrete crusher operates on the standard auxiliary hydraulic circuit of excavators in the compatible classes (6–45 tonnes). The exact check is made based on your excavator's technical data — UZINEX engineers confirm compatibility before confirmation.
How often do the serrated jaws need replacing?
The service life of the jaws depends on the material crushed and the daily volume. UZINEX keeps replacement jaws in stock for all mechanical concrete crusher variants — details on the technical support page .
Can it also be used for stone or asphalt?
Yes. This mechanical concrete crusher efficiently processes medium-sized natural stone and old asphalt from roads and platforms, in addition to reinforced and plain concrete.
Is it eligible for European funding?
Yes. UZINEX is a member of the Enterprise Europe Network and supplies equipment for projects with EU funds. The complete technical documentation is provided on request. Leasing options on the credit and leasing page .
Why UZINEX for your mechanical concrete crusher
A mechanical concrete crusher that works correctly on your excavator makes the difference between an efficient demolition process and unscheduled downtime due to hydraulic incompatibility or premature wear. UZINEX eliminates these risks.
• 60-month warranty — extended coverage for a mechanical concrete crusher in intensive use.
• Hydraulic compatibility check — UZINEX engineers confirm compatibility with your excavator before confirmation, eliminating the risk of incompatibility on delivery.
• Transport and commissioning included — delivery to your premises, mounting on the excavator, testing and operator training.
• Spare parts in stock — jaws and critical components immediately available in Iași, with no lead-time imports.
• National technical support within 24–48 hours — a network of technicians with national coverage and a guaranteed response time.
• Variant selection consultancy — UZINEX engineers recommend the optimal mechanical concrete crusher variant for your excavator and the specific material type. Free consultancy available .
The mechanical concrete crusher available through UZINEX is the solution for demolition firms and builders who want to turn demolished concrete from a disposal cost into a reusable resource — with a single machine, without additional equipment on site.
