BKM jaw crusher bucket — the range of hydraulic attachments for excavators in the 15–70 tonne class that turns any excavator into a mobile crushing station with a dual function: coarse crushing and fine finishing in the same work cycle, without changing the attachment. Available in four serialised models (BKM2200EP, BKM3000EP, BKM3800EP, BKM5500EP), this jaw crusher bucket covers the entire range of medium and heavy excavators used in demolition, quarries and infrastructure works, with clear hydraulic specifications and verified dimensions for every tonnage class.
Compared with rotor crusher buckets, this BKM jaw crusher bucket is designed explicitly for hard materials — granite, basalt, gravel, limestone, reinforced concrete and demolition waste with a high rebar content — where the compressive force of the jaws exceeds the capacity of a rotor. The hydraulic reversal function clears jams caused by oversized stones or entangled rebar without stopping production and without manual intervention in the crushing zone, a critical feature for safe operation on large demolition sites.
Key advantages of the BKM jaw crusher bucket
• Dual function — coarse crushing and finishing in the same machine — this jaw crusher bucket performs both primary crushing (large blocks → medium fragments) and grading (medium fragments → fine product) by adjusting the discharge opening, without changing the attachment or transferring the material to another machine.
• Automatic anti-jam hydraulic reversal — when an oversized body or a piece of rebar jams the crushing chamber, the hydraulic system automatically reverses the direction of the moving jaw to clear the jam, without a forced stop and without manual intervention in the crushing zone. On an active demolition site, this function eliminates downtime caused by manual unclogging.
• Replaceable, durable plates made of wear-resistant materials — the active plates of the crushing chamber are independently replaceable components, without replacing the entire bucket. Plate service life is optimised for abrasive materials (granite, basalt, reinforced concrete), and replacement is carried out quickly with the standard tools available on any site.
• Adjustable discharge opening — the particle size of the final product is set by changing the discharge opening, adapting this jaw crusher bucket to the specific requirements of each application: coarse fill, sub-base or graded aggregate for direct reuse.
• Crushing chambers optimised for hard materials — the geometric profile of the crushing chamber and the attack angle of the moving jaw are calculated for materials with high compressive strength (granite, basalt, class C30+ reinforced concrete), ensuring efficient fragmentation without hydraulic overloads.
• 4 models — full coverage 15–70 tonnes — the BKM EP range covers all classes of medium and heavy excavators: BKM2200EP (15–24 t), BKM3000EP (24–30 t), BKM3800EP (30–45 t), BKM5500EP (45–70 t). Each model is hydraulically dimensioned (pressure and flow) specifically for its excavator class, with no compromise in performance.
• Full mobility — a crushing station on your existing excavator — this jaw crusher bucket mounts on your in-house excavator via the standard quick coupler, turning an excavating machine into a crushing station with no additional transport costs and without bringing a separate mobile crusher to the site.
• 60-month warranty and spare parts in stock at UZINEX — wear plates, hydraulic components and critical parts are immediately available in Iași, with no waiting times that halt production on site.
Technical specifications — BKM jaw crusher bucket (EP series)
| Model | Excavator (t) | Feed opening (mm) | Pressure (bar) | Oil flow (l/min) | Volume (m³) | Dimensions L×W×H (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| BKM2200EP | 15–24 | 800×505 | 220 | >100 | 0,51 | 1945×1105×1285 | 2.200 |
| BKM3000EP | 24–30 | 900×505 | 220 | >145 | 0,80 | 2215×1215×1375 | 3.100 |
| BKM3800EP | 30–45 | 1120×530 | 220 | >200 | 1,00 | 2355×1455×1395 | 4.300 |
| BKM5500EP | 45–70 | 1450×580 | 220 | >290 | 1,70 | 2575×1825×1555 | 6.500 |
Exact compatibility with your specific excavator (make, model, available auxiliary hydraulic flow) is confirmed by UZINEX engineers on request — free technical consultancy . Materials that can be processed with the BKM jaw crusher bucket
This jaw crusher bucket is designed for materials with high hardness and high compressive strength, where rotor or hammer solutions do not reach the required performance.
Hard rocks — granite, basalt, consolidated gravel, compact limestone — are the reference material for which the BKM crushing chamber is optimised. The compressive force of the jaws exceeds the compressive strength of most rocks used in construction and quarries, producing aggregate with clean edges and uniform particle size, suitable for direct reuse as foundation material or structural fill.
Reinforced concrete from demolition — including precast elements, foundation slabs, columns and beams with a high rebar content — can be processed directly by this jaw crusher bucket. The rebar comes out folded together with the aggregate, without jamming the crushing chamber; the hydraulic reversal function intervenes automatically if a tangled piece of rebar causes excessive resistance, clearing the jam in a few seconds.
Mixed demolition waste — combinations of concrete, brick, mortar, natural stone and ceramic elements — is processed without pre-sorting, significantly reducing the time and cost of demolition operations compared with solutions that require material separation before crushing.
How to choose the BKM jaw crusher bucket model that suits your excavator
Choosing the right BKM jaw crusher bucket model depends on three parameters of the excavator: operating tonnage, available auxiliary hydraulic pressure and the oil flow of the auxiliary circuit.
All BKM EP models operate at the standard pressure of 220 bar, compatible with the auxiliary hydraulic circuits of most excavators in this class. The critical parameter to check is the available oil flow: BKM2200EP requires a minimum of 100 l/min, BKM3000EP a minimum of 145 l/min, BKM3800EP a minimum of 200 l/min, and BKM5500EP a minimum of 290 l/min. Insufficient flow reduces the jaw cycling speed — the BKM jaw crusher bucket operates at guaranteed parameters only with the full flow available, without damaging the equipment.
UZINEX engineers verify hydraulic compatibility with your specific excavator — make, model, year of manufacture, hydraulic configuration — and confirm the suitable BKM model before confirmation. This check is free and necessary to avoid flow incompatibilities that reduce equipment performance. Applications and industries for the BKM jaw crusher bucket
Contractors specialised in large-scale industrial and civil demolition are the main users of the BKM models — the jaw crusher bucket in this range is the standard choice on large demolition sites. On sites demolishing industrial halls, massive reinforced concrete foundations and old prestressed concrete infrastructure, the BKM3800EP and BKM5500EP models (for 30–70 tonne excavators) produce recycled aggregate usable directly as foundation fill or road material, eliminating the cost of transport to inert waste landfills.
Operators of hard stone quarries — granite, basalt, high-strength limestone — use this jaw crusher bucket as a primary crushing machine for reducing extracted blocks to processable sizes. The BKM2200EP and BKM3000EP models are the frequent choice in medium-sized quarries where a fixed or dedicated mobile crusher is not economically justified against the volumes extracted.
Rehabilitation works on road and rail infrastructure involving the demolition of old concrete structures — bridges, viaducts, bridge piers, concrete slabs — frequently rely on the BKM jaw crusher bucket for processing massive precast prestressed concrete elements, a category of material inaccessible to rotor buckets or hammers of similar size.
Frequently asked questions about the BKM jaw crusher bucket
How do I check whether my excavator has the hydraulic flow required for the BKM bucket?
The excavator's auxiliary hydraulic flow can be found in the machine's technical manual, under the "hydraulic auxiliary flow" or "auxiliary circuit" section. If you do not have access to the manual, UZINEX engineers can verify the available flow based on the make, model and year of manufacture of the excavator. Contact the UZINEX team with these details before ordering — the check is free and mandatory to guarantee compatibility with this jaw crusher bucket. Can the BKM bucket be mounted on any type of quick coupler?
This BKM jaw crusher bucket is designed for mounting via the excavator's standard quick coupler. Compatibility with the specific quick-coupler type of your excavator (S-lock, Pin-lock, OilQuick or others) is confirmed by UZINEX engineers at the quotation stage. Quick-coupler adapters are available for non-standard configurations. What is the maximum block size that can enter the feed opening?
The maximum block size of material is determined by the dimensions of the feed opening: 800×505 mm for BKM2200EP, 900×505 mm for BKM3000EP, 1120×530 mm for BKM3800EP and 1450×580 mm for the BKM5500EP model. Blocks larger than the feed opening must be pre-fragmented with a rock breaker or hydraulic hammer before being fed into this jaw crusher bucket. How long does it take to replace the wear plates?
The replaceable plates of the BKM models — the jaw crusher bucket with independent wear plates — are designed for quick on-site replacement, using the standard tools available to any maintenance team. The typical replacement time is 1–3 hours depending on the BKM model and the specific wear. UZINEX keeps wear plates for all BKM models in stock in Iași for immediate delivery, with no waiting times that block production. Can the BKM bucket operate in parallel with other hydraulic attachments?
No — this jaw crusher bucket requires the full flow of the excavator's auxiliary hydraulic circuit to operate to the guaranteed specifications. Simultaneous use of another hydraulic attachment (e.g. hammer, rotating grab) on the same circuit reduces the available flow and diminishes performance. Verification of the hydraulic configuration of excavators with multiple auxiliary circuits is carried out by UZINEX engineers at the quotation stage. Is the BKM bucket eligible for purchase through EU funds?
Yes. UZINEX is a member of the Enterprise Europe Network and supplies equipment for projects with EU funds and public procurement through SEAP/SICAP. The complete technical documentation (product sheet, declaration of conformity, CE certification) is provided on request. Leasing and financing options are available on the UZINEX credit and leasing page . Why UZINEX for the BKM jaw crusher bucket
A jaw crusher bucket mounted on a 20–50 tonne excavator is an attachment with a major impact on the productivity and profitability of demolition sites and quarries. Choosing a supplier that provides verified compatibility, fast technical support and available spare parts is just as important as choosing the model.
• 60-month warranty — extended coverage for a jaw crusher bucket in continuous industrial production, with spare parts in stock in Iași.
• Guaranteed hydraulic compatibility check — UZINEX engineers confirm compatibility with your specific excavator (flow, pressure, quick coupler) before confirmation, eliminating the risk of purchasing an unsuitable model.
• Transport and commissioning included — delivery to destination, mounting on the excavator, load testing and operator training included in the equipment price.
• Wear plates in permanent stock — the most requested spare parts for all BKM models are immediately available in Iași, with no lead-time orders that block sites.
• National technical support within 24–48 hours — a network of technicians with national coverage and a guaranteed response time for on-site interventions.
• Eligible for EU funds and public procurement — member of the Chamber of Commerce and Industry and the Enterprise Europe Network, with complete documentation for SEAP/SICAP files and European funding programmes.
The BKM jaw crusher bucket available through UZINEX in four models for 15–70 tonne excavators is the right choice for contractors processing reinforced concrete, hard rock and demolition waste — with a dual coarse-crushing and finishing function, anti-jam hydraulic reversal and guaranteed national technical support over 60 months.