Crushers
STAR TRACE IMPACT CRUSHERS
Star Trace Impactors are designed for crushing hard to soft materials
like Limestone, Iron ore, Coal etc.
These Impactors are available in various sizes ranging from 400mm to
1200mm diameter and width upto 2000 mm. Star Trace can offer duty impactors,
specially designed for coal and similar materials.
Frame or Housing
It is fabricated from M.S. Plates and rolled steel sections with adequate
stiffners to give maximum strength. Location and size of doors are selected
so as to provide access to the internal parts and to facilitate easy maintenance.
Side walls are provided with suitable liners. Wherever material comes
into contact with walls. Bottom part of housing has thick plate flanges
for foundation arrangement.
Breaker Plates / Grinding gibs
Breaker plates or Grinding gibs as applicable are made of M.S. steel
castings or alloy steel castings and are bolted to the M.S. fabricated
blocks. These blocks are hinged from the top and are adjustable with respect
to blow bar tip circle. This arrangement facilitates product size control.
Rotor
Rotor discs made from M.S. plates are keyed to the rotor shaft. Adequate
size rotor shaft is supported in spherical roll bearings. Bearing blocks
are resting on strong and sturdy bottom frame. Blow bars are fixed to
the rotor with the help of wedge blocks.
Rotor is statically balanced so as to minimise vibrations during crushing
operations. light duty impactors, M.S. plates are welded to M.S. fabricated
drum. Ms steel blow bars are bolted to the M.S. brakets.
Lubrication
Generally main shaft bearings are having manual grease lubrication
arrangement. However centralised lubrication system can be provided on
request.
Drive
Impactors are driven by Squirrel cage / Slipring motor through a set
of V belts. In large impactors, fluid coupling can be provided in combination
with squirrel cage motor.