1. Shanghai Long Jing heavy machinery Co., LTD
1.Jaw crusher
This series of crusher is mainly used for rough and moderate broken operations of
various ore materials those compressive resistance is not more than 320 MPa. This
crusher has features of high broken ratio, uniform product size, simple structure, reliable
operation, convenient maintenance, low operating costs etc, which is widely used in
mining, smelting, building, roads, railways, water conservancy and chemical industry.
Working principle: motor drives the eccentric axis rotating through the belt pulley, so that
the movable jaw approaches and leaves the fixed jaw cyclically, which makes the
materials multi-crushed, such as squeezed, rubbed, rolled etc. so that the materials are
crushed into small size, and then fall below gradually, at last discharge from the
discharging mouth.

2. 2.Impact crusher
This series of crusher can deal with various ore materials (granite, limestone, basalt,
etc.), whose particle size is not more than 500mm and the compressive resistance is not
more than 350 MPa. These crushers have features of high broken ratio, high efficiency,
energy-saving, convenient maintenance etc. The crushed materials are cube shaped,
and the size of discharging is adjustable, so this kind of crusher is widely used in
hydropower, highways, railways, artificial gravel, construction and other industries.
Working Principle: The rotor rotates in high speed driven by the motor, and the materials
are impacted with the blow bar on the rotor, and then impacted with the liner plate again,
and finally discharged from the discharging mouth.

3. 3.Vertical shaft impact crusher
This series of crusher is international advanced equipment with low-energy consumption
which is development by our experts through drawing advanced technology from Barmac
Company of the U.S. This crusher has features of stable and reliable working, convenient
maintenance, high broken ratio, crushed materials are cube shaped, especially suitable
for the production of machine-made sand, stone shaping, and can be used in fine
crushing operations of a variety of ores and non-ore.
Working principle: materials fall from the upper part of the machine vertically into the
high-speed rotating impeller. Under the high-speed centrifugal force, they collide and
crush in high speed with the other materials which distribute around the impeller like an
umbrella. After the collision with each other, the materials will format a vortex between
the impeller and the shell, so that they will grind owing to the mutual impact and friction in
many times. At last discharge from the lower part directly, and format a many-times-
closed-circuit cycle. The finished products can be control by the screening equipment to
reach the required size.

4. 4.Cone crusher
This series of crusher is a modern high-performance crusher with high pendulum
frequency, optimized cavity and a reasonable stroke, which is based on the introduction
and absorption from foreign technology, according to the needs of the customer, and
based on the principle of pyramid and the conceptual of more breaking less grinding.
It has features of high-performance, product composition of a good size, good stability
and space easy clearance, convenient maintenance, easy operation etc. This crusher is
widely used in metal and non-metallic minerals, cement plant, construction, gravel and
metallurgical industries.