Construction excavator Hydraulic breaker box type

Enstruc silenced hydraulic breakers are engineered for construction excavators working in built-up, noise-sensitive, or regulated environments. Featuring a fully enclosed box-type housing, these breakers minimise noise and vibration while delivering powerful impact energy for a wide range of general demolition, trenching, and excavation applications.

Our silenced hydraulic breakers for excavators are built for machines from 13 to 50 tonnes, making them ideal for mid- to heavy-duty civil and construction work. Each unit is supplied with chisel, hydraulic hose kit, and gas charging kit. The box housing not only reduces operating noise, but also protects the internal components from dust and impact damage.

Silenced hydraulic breakers for excavators by Enstruc designed for low-noise demolition and trenching

Key Features

Enclosed box housing significantly reduces noise and vibration levels
Delivers strong impact force for demolition, trenching, and rock breaking
Protects carrier structure and operator through low recoil design
Supplied with mounting, chisel, hydraulic hoses, and gas charging kit
Compatible with construction-class excavators from 13 to 50 tonnes
Suitable for urban, residential, or environmental compliance zones
Robust internal components designed for high-frequency operation
Easy to service with field-maintainable parts and access panels

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Silenced hydraulic breakers for excavators from Enstruc for high-performance and reduced noise output

Silenced hydraulic breakers for excavators by Enstruc offering quiet operation in sensitive environments

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Specifications and sizes

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Part Number	Machine Class		Tool Diameter		Operating Pressure		Setting Pressure		Impact Rate	Oil Flow Rate		Weight
Part NumberEHBS120	Machine Class28660 - 39683 lbs	13 - 18 tonne	Tool Diameter4.7 ''	120 mm	Operating Pressure2175 - 2465 psi	150 - 170 bar	Setting Pressure3045 psi	210 bar	Impact Rate400 - 900 bpm	Oil Flow Rate23.7 - 31.7 g/min	90 - 120 l/min	Weight2976 lbs	1350 kg
Part NumberEHBS135	Machine Class39683 - 57320 lbs	18 - 26 tonne	Tool Diameter5.3 ''	135 mm	Operating Pressure2320 - 2610 psi	160 - 180 bar	Setting Pressure3045 psi	210 bar	Impact Rate400 - 800 bpm	Oil Flow Rate34.3 - 39.6 g/min	130 - 150 l/min	Weight4100 lbs	1860 kg
Part NumberEHBS150	Machine Class61729 - 77161 lbs	28 - 35 tonne	Tool Diameter5.9 ''	150 mm	Operating Pressure2320 - 2610 psi	160 - 180 bar	Setting Pressure3045 psi	210 bar	Impact Rate400 - 800 bpm	Oil Flow Rate39.6 - 50.2 g/min	150 - 190 l/min	Weight5291 lbs	2400 kg
Part NumberEHBS160	Machine Class72752 - 99208 lbs	33 - 45 tonne	Tool Diameter6.3 ''	160 mm	Operating Pressure2465 - 2755 psi	170 - 190 bar	Setting Pressure3265 psi	225 bar	Impact Rate300 - 600 bpm	Oil Flow Rate50.2 - 66 g/min	190 - 250 l/min	Weight7032 lbs	3190 kg

Silenced Hydraulic Breakers - FAQ

What is a silenced hydraulic breaker?

A silenced breaker uses an enclosed box design with internal dampening to reduce noise and vibration. This is ideal for working in populated or noise-regulated construction zones.

What size excavators can use Enstruc silenced breakers?

These breakers are suitable for construction-class excavators up to 50 tonnes, including models from:

Caterpillar: 313 – 349
Komatsu: PC130 – PC490
Hitachi: ZX130 – ZX490
Volvo: EC140 – EC480
Develon / Doosan, Hyundai, JCB, Case – full model ranges up to 50t
For smaller excavators, see our Compact Excavator Hydraulic Breakers
For open-box breakers, see Open Type Breakers for Construction Excavators

What’s included in each hydraulic breaker kit?

Each breaker comes complete with:

Mounting (pin-on or quick coupler)
Flat or moil chisel
Hydraulic hose set
Gas charging kit
Instruction and service manual

How does a box-type breaker compare to an open-type?

Box-type (silenced) breakers reduce operating noise and vibration, making them suitable for urban or indoor work. They also protect internal components from debris and impact damage.