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What is the difference between electric hammer

by:WORKSITE     2020-06-12
1. Hand electric drill: The power is the smallest, and the scope of use is limited to drilling wood and being an electric screwdriver, which does not have much practical value. 2. Impact drill: There are two types of impact mechanism for impact electric drill: canine and ball. The ball-type impact electric drill is composed of a moving plate, a fixed plate and a steel ball. The moving disk is connected to the main shaft through threads and has 12 steel balls; the fixed disk is fixed on the casing with pins and has 4 steel balls. Under the action of thrust, the 12 steel balls roll along the 4 steel balls. The hard alloy drill bit produces a rotary impact motion, which can drill holes in brittle materials such as bricks, blocks, and concrete. Take off the nails to make the fixed plate rotate with the follower plate without impact, and can be used as an ordinary electric drill. 3. Hammer Drill (Electric Hammer): It can drill holes in any material and has the widest scope of use. The price of these three kinds of electric drills is arranged from low to high, and the functions are also increased. The selection needs to be combined with their respective scope of application and requirements. Similarities and differences between electric drills, electric hammers and impact drills. Electric drills only have a rotation method, and are particularly suitable for drilling holes on materials that require very little force, such as cork, metal, brick, and ceramic tiles. Electric hammers rely on rotation and thrashing to work. A single thumping force is very high and has a thumping frequency of 1,000 to 3,000 per minute, which can produce significant force. Compared with hammer drills, electric hammers require minimal pressure to drill into hard materials such as stone and concrete; especially relatively hard concrete. Impact drills rely on rotation and impact to work. A single impact is very slight, but a frequency of more than 40,000 impacts per minute can produce a continuous force. Impact drills can be used on natural stones or concrete. They are versatile because they can be used in either 'single drill' mode or 'impact drill' mode, so it is a basic power tool worth choosing for professionals and do-it-yourselfers. Electric drills, electric hammers, and impact drills are used to make holes. Electric hammers are generally used to drill holes in concrete and other hard objects. The drill bit is made of alloy steel. It has the function of a hammer while drilling. Electric drills are used to drill holes in relatively tough objects. The drill bits are generally steel. The impact drill has the functions of an electric hammer and an electric drill. It can be used as an electric hammer and an electric drill. There are also two kinds of drills. The essential differences between electric drills and electric hammers are as follows: (1) The volume is different. (2) Of course, the weight is also different. In the electric drill, only the number of revolutions between the motor (rotor + stator) and the gear bite each other. The electric hammer is different. It should be called a 'hammer' so it has an impact force and can drill hard materials such as concrete and stone. Therefore, the volume of the electric hammer is a little larger than that of the electric drill, which should be an important accessory such as a cylinder, a connecting rod, a piston and the like. The electric drill can only drill wood, iron, plastic and other materials. The electric hammer uses piston movement to compress the gas to impact the drill bit. It does not require much effort from the hand. It can open 6-100mm holes in hard materials such as concrete, brick and stone. The electric hammer has a high efficiency in opening holes in the above materials. , But it cannot open holes in metal. Electric drills are non-impact, requiring human pressure to open holes in materials such as metal and wood, with a diameter of 6-50 mm. The advantage is that the vibration is small, the precision of the opening is high, and the price is not high. In addition, they use different drills, the former is an alloy-inlaid drill, the latter is an ordinary cutting drill. Both electric hammer and impact drill can make holes in concrete structures. Both have the function of piston movement, and the electric hammer is suitable for large calibers such as more than 30MM. The advantages are high efficiency, large aperture and long drilling depth. The disadvantage is that the vibration is large, which has a certain degree of damage to surrounding structures. Impact drills are suitable for small diameters of about 25 mm and short drilling depths. Such as installing expansion bolts. The damage to surrounding structures is very small. For air-conditioning installation, electric hammers should be used except through-holes. Electric drills should be used in other locations. The difference; the electric hammer drill is assembled with a lock clip type, which is simple and does not require any tools. The impact drill requires a special key to tighten.
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