5.2.1
Purpose
The LMFC 250 Jaw Crusher is a crushing device for mineral sampling. Depending on the type of material being crushed, ap-
proximately 100 kg per hour can be crushed and collected in a tray beneath the jaws. Crushing size can be adjusted to client
’
s
specifications, to a minimum of 2 mm particle size.
LMFC250 FINE CRUSHER MANUAL
5.2.2
Basic Construction
The machine is fabricated using standard gauge materials and is painted with a high quality, durable finish.
5.2
Functional Description
5.4
Operator
’
s Controls
The LMFC 250 Crusher
’
s operation is controlled locally by the operator by using the central control box.
5.2.3
Principles of Operation
The LMFC 250 Jaw Crusher uses an electric motor to drive the Crusher pitman eccentric shaft, providing an oscillating move-
ment to the moving jaw plate. The moving and fixed jaw plates form a V shape with an adjustable gap at the bottom, thereby
crushing the material fed down between the jaw plates, to the gap size. The gap can be adjusted to the required particle size,
to a minimum of 2 mm. The crushed material is collected in a tray beneath the jaw plates.
Massa of the machine is around 100kg.
Motor mounted is standard 7,5 kW.
5.3
Machine Data
5.2.4
Principles of Operation
When it
’
s installed in an installation, starting and stopping will be arranged by a central control box.
5.2.5
Controls
The LMFC 250 Crusher has electrical, local stop and start buttons on the control box on the right side of the machine, (only
when operated as individual machine).
5.2.6
Alarms and Trip Set Points
Not applicable.
5.2.7
Operating Parameters
Parameters for operation of this machine are to be determined by the user
’
s company requirements and are to be specified
by others.
5.5
Operation and Use
The following sections contain important information on the correct procedure for day to day use of the LMFC 250 Crusher.
Please be aware of all special conditions and safety messages (displayed in
Red
).
5.5.1
General
The general rules that follow for operation will ensure safe and efficient use of the Crusher.
•
Do not load the machine with material of a lump size larger than 110 mm.
•
Do not overload the hopper with too much material. Allow the material to feed through at a reasonable rate of about 100
kg per hour.
•
Never place hands inside the hopper or near any moving parts while the machine is operating.
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