Hammer Crusher
Hammer Crusher Overview
Hammer crusher also named hammer mill, and crushes materials by the collision between the high-speed hammer and materials. The hammer crusher is used to crush mid-hardness and weak corrosive materials, whose compressive strength is under 100 Mpa, and water ratio is less than 15%. Hammer crusher possesses qualities of simple structure, large reduction ratio, and high-efficiency. Both Dry and Wet Process are available.
Hammer Crusher Application
Hammer crusher is widely used in mining, cement, coal, metallurgic, construction material, road building, and Petroleum & Chemical industries to crush salt, chalk, gypsum, blocks, limestone. The hammer crusher can be used not only in the crushing and sand making production lines, but also the mineral processing production line, taking the place of cone crushers.
The hammer crusher can be also used for crushing chips and paper with fiber structure and strong elasticity and ductility, or recycling asbestos fiber by crushing wastes of asbestos cement, etc. Gap between the gratings are adjustable to change grain size of the discharge, so as to meet different requirements of the customers.
Hammer Crusher Structure
1. The hammer crusher is assembled by several parts and components, including frame, rotor, screen and hammer. Motor drives the rotor through triangle belt on the belt pulley. As the rotor rotates, the hammer impacts against on the materials and materials impact against each other. As a result of it, materials are crushed.
2. The frame consists of two parts, the cover and the lower seat. Protective lining board is set at inner wall of the frame to prevent from abrasion. Four small doors are set on the frame. Two small doors located at upper frame are used to regulate the small door at back wall of the crushing board to clean out materials which are uneasy to be crushed. The other two small doors at front and back wall of the lower seat are prepared to check and clean the screen.
3. The rotor consists of rotor shaft, triangle plate, round plate, hammer shaft and hammer. Triangle plate and round plate are installed on rotor shaft and are separated by shaft sleeve. Hammer shaft is set on the plates; the hammer is hung on the hammer shaft. When rotor shaft rotates, the hammer follows to rotate.
4. Screen strips are set in long screen strip slots on both sides of the inner wall of the lower seat. Eccentric wheels are set under the screen strip slots to adjust the gap between the screen strip and the hammer.
Hammer Crusher Installation
The hammer crusher is assembled at manufacturing factory and is sold as a whole one. The user is requested to check it upon receipt of it to eliminate abnormal conditions occurred during transportation.
1. The foundation drawing offered by the manufacturer indicates only the locations of crusher and motor. The user shall combine this foundation drawing with actual conditions to design the installation drawing of this machine.
2. The hammer crusher is set on the concrete foundation. It is necessary to consider the location of discharged materials when the foundation is designed.
3. A hard wood board or other vibration reduction material shall be underlain between this machine and the concrete foundation to reduce vibration to avoid bad effects to the buildings.
4. When install this machine, center of the motor and center of rotor shaft should be kept on one straight line to avoid too early breakage of the elastic sleeve on the shaft coupling and heating of the bearing.
5. The transmission part shall be set on the right of the machine. However, specific location of transmission part shall be adjusted according to actual conditions.
Hammer Crusher Specification
| Model | Input size (mm) | Output size (mm) | Capacity(t/h) | Power(Kw) | Weight(t) |
| PC 400×300 | ＜100 | ＜15 | 5-10 | 11 | 0.8 |
| PC 600×400 | ＜220 | ＜15 | 10-25 | 22 | 1.5 |
| PC 800×600 | ＜350 | ＜15 | 20-50 | 55 | 4.7 |
| PC 800×1000 | ＜400 | ＜15 | 20-75 | 110 | 7.9 |
