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BF120.4 S4

BF120.4 S4 crusher bucket by MB for 34~45 hydraulic excavators. Suitable for demolition, road construction, reciclying, land reclamation.
BF120.4 S4 crusher bucket

BF120.4 S4 crusher bucket


BF120.4 S4 crusher bucket has a total dimension of 2150 x 1620 x 1390 mm and weights 4800 Kg without upper plate and coupler. The front aperture of jaw is 1195 x 540 mm, and the output can be regulated by means of shims between 20~120 mm.

The bucket has a loading capacity of 1.05 m3.

BF120.4 S4 バケットクラッシャー

BF120.4 S4 バケットクラッシャー

DescriptionBF120.4 S4
Lenght (mm)2150
Width (mm)1620
Height (mm)1390
Weight (kg)4800
Aperture width (mm)1195
Aperture height (mm)540
Loading capacity (㎥)1.05

Hydraulic requirements
BF120.4 S4 hydraulic requirements

Only three hoses are necessary to operate the BF120.4 S4, IN, OUT and DRAIN.

Under specific conditions the bucket can be adapted to work also only with two hoses, without drainage. In this case the excavator maximum back-pressure at any time in the system must be lower than 10 bar.

The reccomanded excavator for the BF120.4 S4 should be equipped with hydraulic system with simple effect.

The required flow for the BF120.4 S4 is 180 l/min at 230 bar. Our tecnichians can verify the right values of flow and pressure available at your excavator with precise instrumentation (flowmeter).

DescriptionBF120.4 S4
Flow (l/min)180
Pressure (bar)230

BF120.4 S4 BF120.4 S4 production capacity

BF120.4 S4 バケットクラッシャー

The BF120.4 S4 can reduce concrete, natural stones, bricks, glass etc., to a size between 20~120 mm.

It can produce up to 50 ㎥/h which means about 75 ton/h if we consider concrete with an average specific weight of 1.5 ton/㎥.

The real throughtput can vary depending on the input and output size of material, its humidity, the presence of soil, etc.

The best way to obtain a high throughtput (production per hour) and a low wear of parts and jaws is to sieve the material before size reduction process. In fact, demolition material contains a lot of sand, soil and dust, that doesn't need to be reduced.

Please refer to our Screener line-up for this scope.

DescriptionBF120.4 S4
ModelBF120.4 S4
Max production (m3/h)50
Max production (ton/h)75

BF120.4 S4 excavator

To operate the BF120.4 S4 the excavator must have have hydraulic system with specifications set forth below, and enough lifting capacity and weigth to be stable during loading, processing and unloading phase. The recommended excavator weight is between 34~45 ton.

Please check the user manual of the excavator for the weight and lifting capacity, in case MB Technical Staff is happy to help you in finding out the relevant data for your excavator.

MB has successfully installed and operated the BF120.4 S4 on all main excavator's brands.


BF120.4 S4 crusher bucket has been succesfully used in applications for demolition works, road construction, recycling, excavations, mines.


Contact us

Contact us by clicking on the image on the side for any information regarding the product, its applications, use and possible savings in adopting the MB technology. We sometimes have second hand buckets available to sell. Feel free to contact us if you are interested in a quote, a demonstration or need any service assistance. We will be very happy to help you.