Power Tools History | Who invented demolition hammer?
Power Tools History-Who invented demolition hammer
In 1932, Bosch launched the first electric hammer with a rotating impact mechanism, called the Professional EH 600.
After repeated research and development and testing by Bosch engineers, Bosch finally launched its first impact drill. This small electric "handheld" engine represents the birth of electric power tools. It opened up a new technical field for Bosch, simplified industrial procedures, greatly improved the efficiency of manufacturing, and revolutionized the traditional construction tools of manual drilling, becoming An important mark in the history of human tools.
In 1952, a 400W electric drill designed for workshop use was made of all metal but equipped with a double-insulated motor, which was safe and reliable. In 1981, Bosch launched the first two-kilogram electric hammer, which was the lightest electric hammer in the world at the time, achieving the goal of "light equipment, strong power".
In 1993, China top leading Industrial/professional class brand KYNKO founded and in later years they R&D hilti banchmark 30mm demolition hammer and other power tools.
An electric hammer is an electric rotary hammer drill with a safety clutch and a pneumatic hammering mechanism. The electric hammer uses the principle of piston motion. Compressed gas impacts the drill bit. It does not require much effort by the hand. It can drill 6-100mm holes in hard materials such as concrete, bricks, and stones. The electric hammer is efficient in drilling holes in the above materials. Higher, but it cannot open holes in the metal.
Here is KYNKO rotary hammer
KYNKO Rotary Hammer Z1C-KD27-22
INPUT POWER: 600W
MAX DRILLING DIAMETER: 22MM
CHUCK TYPE: SDS PLUS
IMPACT RATE: 0-3900BPM
NO LOAD SPEED: 0-870RPM
IMPACT ENERGY: 1.7 J
N.W.: 3.0KG
KYNKO Rotary Hammer Z1C-KD28-26
INPUT POWER: 800W
MAX DRILLING DIAMETER: 26MM
CHUCK TYPE: SDS PLUS
IMPACT RATE: 0-4500BPM
NO LOAD SPEED: 0-1300RPM
IMPACT ENERGY: 3.3 J
N. W.: 2.9KG
KYNKO Rotary Hammer Z1C-KD79-28
INPUT POWER: 1000W
MAX DRILLING DIAMETER: 28MM
CHUCK TYPE: SDS PLUS
IMPACT RATE: 5000BPM
NO LOAD SPEED: 900RPM
IMPACT ENERGY: 5.0 J
N.W.: 4.8KG
KYNKO Rotary Hammer Z1C-KD68-30
Feature:Hilti banchmark
INPUT POWER: 1300W
MAX DRILLING DIAMETER: 30MM
CHUCK TYPE: SDS PLUS
IMPACT RATE: 0-4700BPM
NO LOAD SPEED: 0-850RPM
IMPACT ENERGY: 5.0 J
N.W.: 4.5KG
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