Trapezoid Mill series MTW

The Advantages of Trapezoid Mill series MTW:

1) Bevel gear overall drive: the traditional grinding mill is driven by speed reducer and coupling.
2) Inner automatic Thin-Oil lubricating system: the traditional mill adopts grease lubrication, so the lubricating resistance is stronger, the temperature will be higher soon, the bearing life is shorter. MTW series mill adopts inner L.O. pumps, so the main shaft bearing and bevel gear can be lubricated without an additional lubrication system.
3) Arc air channel: all of the air channel of traditional grinding mill is upright board type.Trapezoid Mill series MTW adopts a cambered air channel, the tangential air goes into air channel easily because there is small resistance. And the inner outlet is very good for the grinded material to spread around and avoid grinding material jammed.
4) Cambered shovel with renewable edge: The shovel edge of Trapezoid Mill series MTW adopts high wearable limit alloy, its life will be longer. You only have to change the edge, not the whole shovel. so the steel material is saved.
5) Separated cyclone: There is a separated structure between inner piping and mixed air and powder. The efficiency and precision of classifying is promoted highly;
6) No resistance snail shell (small checking door so that there is not an eddy air flow): Trapezoid Mill series MTW make the inner surface of checking door stay with the inner surface of snail shell on the same plane, so the eddy air flow is avoided efficiently;
7) Perfect outward appearance: Both of the inner parts and outer part of the MTW series mill adopt advanced structure and beautiful arc structure design. This makes the mill advanced and beautiful.

Working Principle of Trapezoid Mill series MTW:

The standard configuration of Trapezoid Mill series MTW consists of main unit, powder classifier, blower, elevator, feeder, hopper, cyclone collector, dust catcher, blower, motor, pipe, electric control box and so on.

the materials are fed into the grinding chamber for grinding by vibrating feeder equably and continuously. The powder after grinding goes upwards together with the airflow, after separating by powder separator, those which can meet the fineness requirement enters into the cyclone powder collector through pipe together with the airflow, and then discharged from the discharge valve as final products. The airflow is sucked into centrifugal blower through wind recycling pipe at the upper part of cyclone powder collector. The mainframe is driven by the speed reducer through the central axis in the mill. The quincunx stand connected with the upper part of central axis, at the quincunx stand, rollers are set and by which the vibrating pivot formed. Below the quincunx stand and rollers there is shovel system. Materials are fed into the space between rollers and shovels when they are turning, and then be grinded by the pressure produced when rollers are turning, thus powder is made.

Specifications of Trapezoid Mill series MTW:

Model	MTW110	MTW138	MTW175
Roller Number(pcs)	4	4	5
Inner Diameter of Roller (mm)	Ф1100	Ф1380	Ф1750
Speed(r/min)	120	96	75
Max. Feed Size  (mm)	< 30	< 35	< 40
Final size (mm)	Fineness can reach to 0.038	Fineness can reach to 0.038	Fineness can reach to 0.038
Capacity t/h)	3.5～10	6.5～15	11～25
Overall Dimension (mm)	8910 ×6950×9010	9860×8340×1022 7	13 500×11 500×95 00
Weight (t)	18	28.5	46

Specifications of Trapezoid Mill series MTW:

Name		Item	Unit	specification
				MTW110	MTW138	MTW175
Main Unit Motor		Model		Y280M-6	Y315M1-6	Y355M1-6
		Power	kW	55	90	160
		speed	r/min	980	990	990
Motor of Classi fier		Model		YCT200-4A（YCT200-4B）	YCT200-4B（YCT225-4A）	YCT225-4A(YCT225-4B)
		Power	kW	5.5（7.5）	7.5（11）	11(15)
		speed	r/min	125～1250	125～1250	125～1250
Motor of Blower		Model		Y250M-4	Y280M-4	Y315L1-4
		Power	kW	55	90	160
		Speed	r/pm	1480	1480	1490
Auxiliary Parts	Elevator	Model		TH250	TH250	Th315
		Motor		Y100L2-4	Y100L2-4	Y112M-4
		Power	kW	3	3	4
		Speed	r/min	1420	1420	1420
	Jaw Crusher	Model		PE250×400	PE250×400	Pe250×750
		Motor		Y180L-6	Y180L-6	Y200L2-6
		Power	kW	15	15	22
		Speed	r/min	970	970	970
	Feeder	Model		GZ2F	GZ3F	GZ4F
		Power	W	150	200	450

Note: Capacity is according to the limestone and passing rate is 80%. All of the specification is just as reference.If there is change of the above specification, it subjects to the newest grinding mill's' specifications.

Gallery of Trapezoid Mill

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