Peak for a jackhammer: an overview, types, characteristics and reviews

Since ancient times, in the course of its economic activities, mankind often had to use such strong materials as sedimentary rocks, asphalt and concrete. Experience has shown that it is very difficult to split or loosen them without appropriate equipment. The solution to this problem was the emergence of jackhammers, equipped with special replaceable nozzles.

What is the principle of the action of "bumpers"?

The jackhammer is a mechanical hand tool that performs impact action with its working part (metal chisel or pike) on the surface of various materials. Work with the use of this tool becomes mechanical. The peaks for a jackhammer are affected by mechanical impulses, which are sent by the firing pin. It comes in motion with the help of special drives. The peak for a jackhammer is subjected to such an effect at a frequency of 16-25 Hz. The very principle of work consists in cutting or splitting various hard rocks. Having received from the striker a shock impulse, the peak for a jackhammer with the help of its working cutting edge loosens or splits the hardest materials.

Peak device

The replaceable nozzle is a rod, which at one end is inserted into the jackhammer. For this purpose, in the design of "bumpers" there are special chambers, with the help of which reliable fixation of the nozzles is carried out. The shanks are divided into several types. The peaks intended for "bumpers" are equipped with cylindrical-type shanks, suitable for both jackhammers and automatic ones. If the replaceable nozzles are incompatible with the equipment chambers, you can use special adapter adapters.

The second end of the rod is a sharpened working part, which performs various operations. Regardless of the size of the rod and the shape of its working part, the peaks are very effective in all kinds of work. Using replaceable nozzles for jackhammers, it is possible to punch openings in concrete, brick, reinforced concrete and granite surfaces of various sizes. As evidenced by the owners' testimonials, for a modern person the work on laying water pipes is inconceivable without the use of these attachments.

Manufacturers

Production of peak for jackhammers in the Russian Federation is carried out by the following enterprises:

• LLC "Artmax" (Tomsk).
• LLC "Avtospetsmash" (Cherepovets).
• LLC "Urals Plant Pneumatic Machines" (Zlatoust).
• LLC "Agat" (St. Petersburg).

Features of cross-wedge rolling

The main task performed by peaks for a jackhammer is a short-term force action on the workpiece. This is taken into account in the technology of manufacturing these interchangeable tools. The procedure for making the nozzles is cross-wedge rolling. The work consists in the fact that the steel blank is subjected to a single heating, after which the product is formed. The very principle of rolling is that the stress created in the product after a one-time heat treatment is uniformly and uniformly distributed along the fibers.

As a result, this method gives a high-quality tool that does not have thermal boundaries. Due to this production technology, the thermal stress in the metal is minimized significantly. Residual stresses caused by the heating of the product are guided along the metal fibers during the "rolling" process. In addition, the peak for a jackhammer, manufactured in this way, has an ideal axial geometry. A similar result can not be achieved if the peak is heated separately in parts or used several cycles of heat treatment.

Why is the axial geometry important in the product?

As evidenced by numerous reviews of data holders of removable tools, the peak for a jackhammer must necessarily have an impeccable center line. This requirement is due to the fact that as a result of the high frequency of impacts in the metal, the voltage increases, which adversely affects the strength of the peak. This is especially bad for those tools in the production of which their straightness is not guaranteed.

How to choose the right peak?

Peaks for a pneumatic hammer are able to provide high productivity of the labor process in the event that they are matched to the type of work planned. In order for the work to be carried out not only quickly, but also without damage to the equipment, it is important to take into account another nuance: the buyer must determine to which type the equipment belongs, since for each individual model there is a corresponding peak for a jackhammer. St. Petersburg represents several manufacturers of this product. The most popular tools on the market today are the products of the manufacturer's trading company Promtekhosnastka. This company produces the following types of replaceable attachments:

• Peaked spikes. P-11 - for a jackhammer.
• P-31 - chisel.
• P-41 - blade.

Where is the spike used?

"Lomik" - this is the second name because of its peculiar form was the peak of a jackhammer (MO). The price of P-11 is 125 rubles. This nozzle is also used for pneumatic hammers (MOS series). The production of a pointed peak should be carried out in compliance with all production requirements and norms. The nozzle P-11 is represented by a special design: its shape resembles a pointed tetrahedral pyramid.

This tool is used for the following types of work:

• Destruction of hard surfaces of roads (asphalts).
• Loosening of frozen ground.
• Dismantling of brick and concrete walls.
• Work with rocks.

Mining is the most common area in which these attachments are used.

Product Description

• Shank of cylindrical type.
• The length of the shank is 7 cm.
• The volume is 0.24 cm.
• The length of the whole product is 320 mm.
• For the manufacture of the peak, structural carbon steel grade 50 is used.
• The weight of the peak is 1.2 kg.
• Country of origin - Russia.
• The tool is issued with a one-year warranty.

Application P-41

This type of nozzle is intended only for work with jackhammers. The principle of action of P-41 is a short-term directional impact (impact) on solid material. Due to design features and special production technology, the blade spades have high strength characteristics.

According to the owners of these products, this replacement tool is very effective for the following types of work:

• Stripping of walls from plaster.
• Cutting and fragmentation of individual small segments in the brick and asphalt surfaces.
• Work with large areas of concrete coatings.
• With this nozzle, you can work with edges in concrete structures.

Characteristics

• The length of the P-41 is 315 mm.
• The length of the shank is 7 cm.
• The diameter is 0.24 cm.
• The length of the shock part is 50-70 mm.
• Shank type - cylindrical.
• The weight of the peak does not exceed 1.2 kg.
• U-8 is the steel grade, from which the peaks for the jackhammer are manufactured.
• The price of production is 170 rubles.

Application and product description P-31

As evidenced by numerous reviews of consumers, due to the geometric parameters, which differ chisels from the "Promtekhosnastki", this replacement tool is very convenient to work with such materials as frozen soil, concrete and brickwork. Using P-31, it is easy to prune layers from very hard surfaces.

• In the production of this type of peaks, masters use high-quality constructional carbon steel grade 45, which is subjected to heat treatment. For this brand, strength and fluidity are considered characteristic properties. The nozzles made of this steel have high resistance to various physical influences.
• Convenience when working with reinforced concrete products is another quality that the peak for a jackhammer has. "Promtekhosnastka" is a manufacturer, which widely uses cross-wedge rolling technology in the process of making its attachments. P-31 "chisel" is recommended for long-term work. As evidenced by the positive feedback, this peak is very effective in conditions of intensive exploitation.
• The working surface has a length of 3-5 cm.
• The length of the cylindrical shank P-31 is 7 cm.
• The length of the shank is 0.24 cm.
• The size of the whole product is 315 mm.
• Weight - 1,2 kg.

Use this nozzle is recommended when working with concrete and reinforced concrete structures. Using the product P-31, you can easily cut through niches in various durable materials.

Extended options

The length of the peak is considered to be a very important parameter of the product. It depends on it, how deep will be the hole in the surface after using this nozzle in the "bump".

The standard dimensions of the peak do not exceed 350 mm, and their weight is 1.2 kg. In the market of tools there are also non-standard, or elongated, versions of such products as P-11 and P-31. For their marking, the following designations are used: П-11У and П-31У. In such interchangeable tools, the dimensions of the cylindrical shanks remain the same (7 cm), while the working part itself lengthens. Thus, the peaked peak of an elongated specimen has a length of 3000 mm. The same size has a non-standard chisel: P-31U. Feedback from users who have used these tools in their work are positive. Due to the large size these non-standard products are very effective for work in the most inaccessible places.

Today, many trading companies specializing in the manufacture of peak for jackhammers, also carry out individual orders. Depending on the preferences of the consumer, replaceable nozzles can be made from the customer's proposed steel grade.