Content

  1. Classification of hydraulic hammers
  2. small class
  3. Middle class
  4. heavy class
  5. Piling Hammers
  6. Piling Hammers
  7. Rules for selecting a hydraulic hammer
  8. Nozzles for hydraulic hammers

Rating of the best hydraulic breakers for 2022

Rating of the best hydraulic breakers for 2022

Mankind has always striven to create universal tools of creation, but rarely have these aspirations been crowned with success. But the creation of universal tools of destruction was much better. The hydraulic hammer is one such destructive invention, put to the service of good.

Classification of hydraulic hammers

It is called a hydraulic hammer because it is driven by the standard hydraulics of the mechanism and does not require any additional energy sources. It is a quick-release nozzle for excavators, loaders, pile drivers, manipulators, and other boom construction equipment used for dismantling.

The main parameter of the effectiveness of a hydraulic hammer is the impact force measured in J. Depending on its indicator, the equipment is divided into three categories:

  • Small class (from 400 to 1500 J);
  • Middle class (from 1500 to 3500 J);
  • Heavy class (more than 3500 J).

small class

Attached equipment designed for dismantling works in cramped conditions, and not requiring a lot of power applied effort.

Advantages:
  • possibility of application in hard-to-reach places;
  • compact size, light weight;
  • the possibility of using when working indoors;
  • the mechanism has two modes of operation: shock and shock - rotational;
Flaws:
  • missing impact power for all types of dismantling works;
  • lower performance.

Hydrohammers of this class are used for:

  • destruction of ice and a layer of frozen soil T = 20 cm;
  • dismantling of asphalt pavements;
  • destruction of concrete screeds T = up to 30 cm;
  • drilling holes in brick and concrete structures;
  • rammers and soil compaction.

Best Small Hydraulic Hammers

Among the leaders are the products of the conglomerate of manufacturers Atlas Copco AB and Krupp Berco Bautechnik.The range of niche equipment weighing from 35 to 415 kg is indicated by the letters SB. The advantage of the line is that the equipment can be mounted on excavators and loaders weighing from 500 kg.

The most common models:

Model SB 52

Weight - 55 kg suitable for use on carriers weighing from 0.5 tons

hydraulic hammer SB 52
Advantages:
  • despite the dimensions, it surpasses portable and stationary jackhammers in power;
  • adapted to work with carrier oil flow in the range from 12 to 27 l/s.
Flaws:
  • not detected.

Model SB 552

Weight 520 kg, for mechanisms weighing from 5 tons.

hydraulic hammer HSB 552
Advantages:
  • power corresponding to some middle class models;
  • adapted to the operation of oil pumps with flow rates from 65 to 115 l/min.
Flaws:
  • not detected.

In this segment, the products of the Japanese company Furukawa Rock Drill Co. deserve attention. Ltd, trademark of FRD.

Lightweight and easy to operate are the main features of this company's hydraulic hammers. Hammers in the weight range of 67 - 283 kg are equipped with internal damping elements, L-shaped side plates, an insulated mounting plate, providing noise and vibration damping. Equipped with a hydraulic control valve to synchronize the oil pressure of the attachment and carrier mechanism.

Hydrohammer Furukawa F1

Hammer weight: 67 kg, impact energy: 160 J, impact frequency: 1250 beats/min, nozzle diameter: 36 mm, oil consumption: 20 l/min.

Hydrohammer Furukawa F1
Advantages:
  • low noise;
  • the presence of a synchronizing valve.
Flaws:
  • not detected.

Middle class

The most common type of this type of equipment, popularity provides versatility, fairly compact size, and the ability to perform the vast majority of dismantling work. Hydrohammers of this class are available for all types of work performed by the previous and additionally:

  • destruction of concrete and reinforced concrete structures;
  • grinding of granite and marble rocks M 600;

There are restrictions in work on objects with a high building density, in terms of the power of the equipment used: no more than 2,500 J.

Advantages:
  • versatility of application;
Flaws:
  • not detected.

The best mid-range hydraulic breakers

Among the variety of mechanisms in this category, the products of Nippon Pneumatic, a Japanese company that appeared on the attachment market in 1961 and operates under the NPK trademark, attract attention.
Improvement in the design of the diaphragm hydraulic accumulator allowed the company to organize the production of a new GH line of middle-class hammers with an increase in impact force by 30% with the same product weight.

Hydraulic hammer manufactured by NPK

Weight 1900 kg, impact energy 4000 J.

Hammer NPK
Advantages:
  • with a small weight, it has the power of heavy class models.
Flaws:
  • fixed oil consumption requires the selection of an appropriate mechanism.

Hydrohammer F19

Another representative of the family, manufactured by another Japanese company, Furukawa Rock Drill Co. Ltd. (FRD). Its mechanisms compare favorably with the presence of a hydraulic system control valve that allows you to synchronize the parameters of the hammer and the mechanism.

Weight: 1260 kg, impact energy 3579 J, oil consumption: 155 l/min.

Hydrohammer F19
Advantages:
  • synchronization of hydraulics allows use on any carrier of the corresponding weight;
  • with a small mass, it has the maximum impact force in its category.
Flaws:
  • not detected.

heavy class

Hydrohammers of this class are designed to perform work that was previously carried out with the help of undermining.

Used in production:

  • career work;
  • demolition of especially strong reinforced concrete structures: bridges, bunkers, hydraulic structures.

Due to the large diameter of the fragments and vibration, the use of heavy-duty breakers requires additional precautions.

Advantages:
  • maximum efficiency;
  • the ability to perform any task of dismantling, grinding and crushing.
Flaws:
  • restrictions in the use of safety measures, dimensions and mechanisms of carriers.

The best heavy duty hydraulic breakers

HM 4000CS Krupp


The undisputed leader of the segment is HM 4000CS Krupp. In the production of its products, the company applies the principle of stepped sealing, which can significantly extend the life of the shock piston.

HM 4000CS Krupp
Advantages:
  • has the highest impact power in its class;
  • operates autonomously from the hydraulic system of the carrier;
  • Possibility of operation in underwater and underground position, resistant to heavy dusting.
  • the presence of a quick-release adapter;
Flaws:
  • high price.

The heavy class has tremendous energy, which allows it to be used to solve other tasks that are not characteristic of younger brothers:

Piling Hammers

The principle of operation of this type of hammer is the mechanical impact on the head of the pile, leading to its immersion in the soil.

Adjustment of the impact force allows you to select the required deepening power and avoid destruction or deformation of the head of the submerged element.

Advantages:
  • equipped with a cooling system that allows round-the-clock operation of the mechanism;
  • the unit has a cushioning system that reduces the mechanical impact on the soil and noise on the environment;
  • long service life of 15 - 20 years.
Flaws:
  • quite a lot of noise and vibration.

The best driving hammers

Such equipment of all categories is produced by the Finnish company Junttan, a world leader in the development of technologies and equipment for pile work.

Junttan PM25L Heavy Class Installation

It is intended for immersion of reinforced concrete piles. Equipped with a side-mounted rotor for "leading" drilling, facilitating penetration in dense soils. L=16m, section 300x300; 350x350; 400x400, weight 6400 kg.

Junttan PM25L Heavy Class Installation
Advantages:
  • low noise and vibration levels;
  • high performance and ease of operation;
Flaws:
  • decrease in productivity when the weight of the pile exceeds the weight of the hammer by more than 3 times.

Piling Hammers

Hydraulic vibrators are designed to compact the soil to the required characteristics by driving piles. In the presence of replaceable nozzles, they successfully cope with reinforced concrete and wooden piles, sheet piles, shell piles, plastic and composite options.

The principle of operation of the mechanism: under the pressure of hydraulic fluid, a group of eccentrics creates vibration and, through the pile holder, transmits it to the immersed element.The thixotropic properties of the soil change its characteristics in the vertical and horizontal plane of contact with the pile body, reducing the friction force and ensuring the immersion of the pile element under the influence of its own weight and the mass of the vibrator.

Advantages:
  • low noise, minimal environmental damage;
  • high amplitude of oscillations allows you to speed up the labor-intensive process of work;
  • adjustment of the frequency range, allows you to choose an individual immersion mode depending on the properties of the soil and material and the shape of the pile;
  • features of the mechanism allow not only to deepen, but also to extract the loaded piles.
Flaws:
  • not detected.

The best hydraulic hammers vibrators


Delta VM600SG

Differs in high speed of immersion. The small dimensions of the mechanism allow the use of piles of maximum dimensions. A set of holder nozzles allows you to work on immersion of sheet piles, I-beams, channels, pipes, and in combination with a side grip, extract them.

Delta VM600SG
Advantages:
  • high-quality service, including staff training;
  • automatic tilt angle control;
  • Compatible with all media on the market.
Flaws:
  • not detected.

Rules for selecting a hydraulic hammer

Before choosing a hydraulic hammer, you need to learn the following rules, failure to comply with which can lead to premature failure of the mechanism, or an emergency during work.

Recommendations for choosing a hydraulic hammer

  • weight selection. Construction equipment designed to use a hydraulic hammer as attachments is of two types: wheeled and tracked.When selecting a hammer for a wheeled mechanism, it must be taken into account that its weight should not exceed 10% of the carrier's weight and be equal to the load capacity of the boom at maximum reach, otherwise the working mechanism may tip over. The calculation formula for a caterpillar tractor is the same, but the tolerances are more loyal, due to better stability and a low center of gravity.
  • selection according to the characteristics of the circulation of the working fluid in the hydraulic system of the technical facility. The working pressure of the hydraulic fluid of the hammer must match that of the excavator. The volume of pumped oil must not exceed the capacity of the hydraulic system, otherwise the costly oil pump will fail.
  • the tasks facing the hydraulic hammer and the conditions in which it will be operated is especially important in cases where the mechanism is supposed to be rented out, and the factors listed above are simply not known.
  • any task has its own cost, and therefore, in the operation of the mechanism, the cost price is of paramount importance. The last, but very significant factor of choice is the price of a hydraulic hammer.

Nozzles for hydraulic hammers

Hydraulic hammers of all categories, in addition to the listed advantages, have one more thing: replaceable nozzles, which make it possible to significantly expand the range of work performed and increase their efficiency.

Nozzle types:

  • for destruction;
  • for sealing.

Nozzles for destruction

They are a metal rod made of wear-resistant steel. It is used for dismantling, crushing and grinding structures; Depending on the task, they differ in the type of tip: a chisel, a chisel are subdivided:

Pike, with a conical point


Advantages:

  • easy penetration into the material;
Flaws:
  • labor-intensive extraction, the possibility of jamming in the rock.

For this reason, nozzle manufacturers have developed new models of picks, giving the tip, instead of a cone, the shape of a three or four-sided pyramid. Longitudinal cracks are formed on the traverse of the faces, increasing the destructive effect and minimizing the possibility of jamming.

nozzle for hydrohammer pick

Chisel


When splitting individual dimensional fragments, even a durable mineral, a tip in the form of a chisel has proven itself well. Two perpendicular faces create longitudinal cracks, accelerating the crushing of the rock.

hammer head wedge

Wedge


In the development and loosening of frozen soils, the construction of faces, the nozzle with a tip in the form of a wedge is most effective.

Advantages:
  • high productivity and efficiency in the production of certain types of work.
Flaws:
  • inapplicability to other types of work.

Since the pike is a working element of a hydraulic hammer, the surface of the tip is subject to accelerated wear from interaction with dense minerals. The loss of the original configuration leads to a decrease in the efficiency of the mechanism and an increase in the load on the drive. The quality of the material from which the nozzles are made is of paramount importance.

Best Replacement Destruction Nozzle Manufacturer: Delta is a company with a proven track record for superior product quality. The nozzles offered by the company are made of high-strength, wear-resistant steel Hardox, produced by the Swedish concern SAAB and have an enviable service life.

Soil compaction attachments


Nozzles for soil compaction are designed and manufactured to give the mechanism universal use, but during operation it turned out that this method of compaction is much more efficient than previously existing and allows you to achieve density coefficients that are inaccessible to other methods.

Hammer compactor allows you to increase and stabilize the bearing capacity of loose, loose soils and quicksand to acceptable levels, eliminating the need for removal, replacement and other measures to replace unstable soil layers.

The hydraulic hammer market segment is saturated with manufacturers with various price offers and a range of products. This allows you to pick up attachments for equipment already in the fleet without resorting to expensive purchases.

0%
0%
votes 0

Tools

Gadgets

Sport