How to choose a reliable electric hammer
How to choose a reliable electric hammer, the first is to look at the appearance, now have rocking shaft bearing rod and eccentric hammer structure, general pistol is mostly bearing rod structure swing (such as the BOSCH 24, 26 etc), D shaped handle mostly eccentric structure (such as xilide TE30) swing type, structure is mostly light, but the durability and the impact will be almost, eccentric structure is mostly medium or heavy hammer, the weight will be large, but the impact strength and good durability, quality mainly depends on the shell structure, chuck, motor, impact device, power line, at the beginning of the quality engineering plastic shell structure (a magnesium alloy, steel fiber, etc.), to dismantle the drill chuck conveniently, mounted on the drill after boot test concentricity better, drilling concrete failure, a detachable collet (such as Hilti brand), can not be Split type (such as BOSCH and other brands), detachable collet expensive work requirements, but when the drill fracture can have convenient maintenance, motor brush and brushless brush points, convenient maintenance, high strength and durable brushless but expensive maintenance device, the impact pendulum shaft bearing rod and partial heart hammering type structure, each has advantages and disadvantages, starting motor voice heavy and powerful without noise, power line should be moderate in length, the thickness of the core wire and copper wire to qualified quality square number, power line with anti tensile strength and the line test qualified, the quality is better at the beginning, with the best speed. Constant power output, have anti torsion and vibration damping function (anti torsion is to prevent drill steel rebound damping can reduce the work intensity of wounding), according to the above aspects selected, hammer quality is guaranteed.
The difficult question, 1, budget, if your wallet is relatively large. It is very easy to catch, expensive to buy it, buy foreign brands, BOSCH, MAKITA and so on, 2, if the purse is small, then take a look at foreign-owned, joint ventures, domestic manufacturers of stuff now, I belong to the poor family, had bought a hammer election to the last election to buy the German maidengbao, if you want to buy a proposal to buy V-KOOL series, because this series belongs to the industrial grade, seventy percent parts are imported, but more difficult to buy, I am from Shanghai they order, it is made into the East, Richard big, large, strong, but fame is not very loud, sharp is our use of units of the brand, with half a year without any problems, on the quality of single hammer (only for hole) than the hammer is reliable and durable than the industrial grade, power General speaking, at least more than 500W for 800W or more generally to large power electric hammer, electric power in our unit was 870W, temporarily came to this, (U, u _)
