Modern gasoline jack hammers with an active impact mechanism are used in various fields. The main industries are mining, construction industry, road service. The tool is designed to crack pieces of asphalt, concrete, rocks with subsequent crushing of large deposits. Due to the possibility of operating various nozzles, this unit often acts as a rammer or chisel. Devices significantly facilitate the implementation of construction and other works where significant effort is required.
general description
A gasoline jackhammer, like electrical counterparts, is characterized by three main parameters:
- Operating indicator of maximum power (measured in kilowatts or horsepower).
- Impact force (for most models, this parameter is from three to 60 Joules);
- The number of strokes per minute.
It is worth noting that in some cases, to fix the required impact power, manufacturers at a fixed rate increase the oscillation frequency of the working part of the device. Thanks to the optimal combination of both indicators, a universal unit is obtained, designed to fulfill a whole range of specific tasks.
Device and principle of operation
To choose the right gasoline jackhammer, you need to understand the design and principle of operation of the unit. During the operation of the tool, the built-in internal combustion engine activates the “hammer” (working part), which moves along the provided guide elements.
Through this part, mechanical signals are transformed to the shock part of the instrument (peak). It is made in the form of a chisel, rammer, scapula or small scrap, depending on the nozzle used and the purpose of the particular modification. Using a special mechanism of the guiding parts, return and translational movements are made, the frequency of which can reach one and a half thousand beats per minute.
By affecting the surface to be treated, the material gradually acquires a convenient shape for further use, removal or disposal. The principle of operation in all types of tools under consideration is identical, each of them has its own advantages and disadvantages.
Features
Among the advantages of gasoline jackhammers, the following points are noted:
- the presence of an integrated energy source that provides complete autonomy;
- mobility;
- reasonable price and availability of fuel used;
- practicality and reliability.
The minuses of this type of instrument include high noise, the emission of harmful exhaust gases into the atmosphere, and the need for regular replenishment of fuel reserves.
Popular models
If you need to purchase a Bosch jackhammer or other equivalent, you should study the characteristics of the units. We begin the review with the popular model TSS-GJH95, taking into account the opinions of users.
The tool is made in China, equipped with a two-stroke engine with a single cylinder with a capacity of 2.3 horsepower. The unit is launched using a mechanical (manual) starter, about 0.8 liters of fuel is consumed per hour of operation. The TSS GJH95 jackhammer optimally combines price / quality parameters. To lubricate the working parts, graphite is used in combination with special oil.
Wacker Neuson BH 23
Products from this manufacturer are characterized by high quality, ease of use, reliability. The VN 23 series jackhammer has proven itself positively under various loads, possessing powerful impact force along with a minimum vibration index.
The advantages of the product include fuel economy, autonomy, excellent build quality and materials. The tool is easy to manage, maintain, transport and store. The unit is universal, safe, has a high rate of performance. Among the minuses is the high price (130-160 thousand rubles).
ADA Ground Hammer 3 Petrol Hammer
Another popular representative on the domestic market is equipped with a 32.7 cc two-stroke gasoline engine. The main parameters of this modification:
- working power (hp) - 1.2;
- shock force (J) - 25-45;
- the number of movements of the working body per minute - 1700-2230;
- tank volume for fuel (l) - 0.9;
- fuel consumption (l / h) - 0.5;
- weight (kg) - 13.
The tool in question is equipped with a pair of handles that facilitate the operation of the device. The package also includes three special nozzles, grease, a set of keys. Among the advantages of the model, a powerful engine is noted along with a relatively light weight, which ensures complete autonomy during operation.
Transporting the unit also does not cause difficulties, since it has compact dimensions (375/280/603 mm), which does not require a lot of storage space, and transportation can be carried out in the trunk of any car. Handles-holders of the device have a high rate of ergonomics, protective rubber pads that reduce vibration during operation.
Atlas Copco Cobra Pro
A universal jackhammer combining in its design an excellent indicator of impact force and mobility. Since there is no need to be tied to a power network, the tool is great for remote work on road construction or mining. Several nozzles make it possible to expand the range of use, including the destruction of frozen soil and crushing of rock.
Specifications:
- power unit - a gasoline engine with two strokes and one cylinder;
- power parameter - 2.7 hp;
- shock energy - 60 J;
- the frequency of movement of the working peaks - 1440 beats per minute;
- gas tank capacity - 1 l;
- fuel consumption - 0.9 l / h;
- overall dimensions - 390/330/920 mm;
- weight - 24 kg.
The device quickly and easily starts using a decompressor and electronic ignition. Maximum protection against vibration due to special HANS shock absorbers (without springs).
Competitors
For a comparative description, we consider the parameters of the main competitors with power supply. Among them: Bosch jackhammer.
The following are the performance indicators for the GSH 5:
- power consumption - 1.15 W;
- length / width / height - 480/105/235 mm;
- shock energy - 8.3 J;
- weight - 6.2 kg;
- number of beats per minute - 1300-2900;
- cartridge type - SDX max.
The tool from the well-known German manufacturer is additionally equipped with a special vibration damping system, which increases working comfort, while power is not lost.
Another competitor to gasoline counterparts is the Hitachi jackhammer. The following are the options for modifying the H45MR:
- power consumption - 950 W;
- limit number of beats per minute - 3000;
- shock energy - 12.5 J;
- weight - 5.9 kg;
- cartridge type - SDS max.
The device is equipped with vibration dampers and an additional handle-holder. The package includes a plastic case, a set of keys, a peak.