LM Vertical Roller Mill

The LM Series vertical milling machine is designed to consolidate multiple grinding functions into one compact system, supporting medium crushing, drying, grinding, and classification within a single vertical layout. This configuration is widely used across mineral processing, coal preparation, slag grinding, fine powder production, and pre-grinding stages in industrial plants.

Material is fed onto a rotating grinding disc where rollers apply pressure to grind it directly on the plate. This vertical roller grinding method reduces energy consumption compared with traditional mills, as the rollers do not directly contact the disc during operation. Wear components are manufactured from durable materials to support long service life and stable performance.

Operation is managed through an automated control system that supports remote control and simplified operation. Built-in protective mechanisms prevent direct contact between roller sleeves and disc liners, reducing vibration and mechanical shock. Maintenance is streamlined through accessible roller and liner replacement, helping minimize downtime.

The enclosed system design supports energy conservation and environmental control. Low vibration, reduced noise, and effective sealing limit dust emissions, while negative-pressure operation helps maintain clean working conditions.

The LM Series is suitable for operators seeking integrated grinding solutions with predictable output, flexible material handling, and efficient operation. Multiple configurations are available to match material type, fineness requirements, and capacity targets across different processing stages.

The technical data below outlines specifications for each LM Series configuration, including mineral mills, coal mills, slag mills, fine-powder mills, and pre-grinding mills. Capacity values are shown in tons per hour (TPH), and rotational references are shown in revolutions per minute (RPM). Our team can assist with model selection and system integration based on specific process requirements.

The table below lists specifications for the Vertical Mineral Mill Series, including plate diameter, capacity range, output fineness, feed size, and main motor power.

Models and parameters		Vertical Mineral Mill Series
Models and parameters		LM130K	LM150K	LM170K	LM190K	LM220K	LM280K
Plate diameter (mm)		1300	1500	1700	1900	2200	2800
Capacity (TPH)		10-28	13-38	18-48	23-68	36-105	50-170
Output fineness (μm)	μm	170-40	170-40	170-40	170-40	170-45	170-45
Output fineness (μm)	Mesh	80-400	80-400	80-400	80-400	80-325	80-325
Max feed size (mm)		<38	<40	<42	<45	<50	<50
Main motor (kW)		200	280	400	500	800	1250

The table below provides specifications for the Vertical Coal Mill Series, including grinding roller count, capacity range, coal powder fineness, feed size, and motor power.

Models and parameters	LM80M	LM110M	LM130M	LM150M	LM170M	LM190M	LM220M	LM240M	LM280M
Plate diameter (mm)	800	1100	1300	1500	1700	1900	2200	2400	2800
Grinding roller (piece)	2	2	2	2	2	2	2	3	3
Capacity (TPH)	3~5	5~9	10~17	16~22	20~30	26~40	35~50	50~65	60~90
Coal powder fineness (R0.08mm)	5~20%	5~20%	5~20%	5~20%	5~20%	5~20%	5~20%	5~20%	5~20%
Max feed size (mm)	<30	<30	<38	<40	<42	<45	<50	<50	<50
Main motor (kW)	55	110	185	250	315	400	500	710	900

The table below lists specifications for the Vertical Slag Mill Series, including turnplate diameter, moisture limits, fineness, capacity, and motor power.

Models and parameters	LM130N	LM150N	LM170N	LM190N	LM220N	LM280N	LM370N
OD of Turnplate (mm)	1700	1900	2100	2400	2800	3500	4500
Moisture of Scoria	<15%
Output fineness	Specific Surface Area ≥420 m²/kg
Moisture of Powder	≤1%
Capacity (TPH)	4~6	6~8	8~10	10~12	20~26	50~60	90~110
Main motor (kW)	200–250	280–315	400–450	500–560	900–1000	1800–2000	3150–3300

The table below provides specifications for the Vertical Fine-powder Mill Series, including fineness range, capacity, classifier power, and motor power.

Models and parameters	LM130X-GX	LM150X-GX	LM170X-GX	LM190X-GX	LM220X-GX
Plate diameter (mm)	1300	1500	1700	1900	2200
Grinding roller (piece)	3	3	3	3	3
Max feed size (mm)	10	20	20	20	20
Output fineness (D97)	325~600 mesh	325~600 mesh	325~600 mesh	325~600 mesh	325~600 mesh
Capacity (TPH)	4~12	6~14	8~20	13~26	15~30
Powder classifier (kW)	45	55	75	90	110
Main motor (kW)	220	280	400	500	560

The table below outlines specifications for the Vertical Pre-grinding Mill Series, including feed capacity, output fineness, throughput, and motor power.

Models and parameters	LM150Y	LM170Y	LM190Y	LM250Y	LM340Y
Plate diameter (mm)	1500	1700	1900	2500	3400
Grinding roller (piece)	2	2	2	3	3
Max feed size (mm)	20	20	20	20	20
Feed Capacity (t)	15~25	25~40	35~50	80~120	200~250
Output fineness 1 (R0.08mm)	≤15%	≤15%	≤15%	≤15%	≤15%
Output capacity 1 (TPH)	6~10	10~16	14~20	32~48	80~100
Output fineness 2 (R0.2mm)	≤5%	≤5%	≤5%	≤5%	≤5%
Output capacity 2 (TPH)	9~15	15~24	21~30	48~72	120~150
Mill cycle throughput (TPH)	60~100	100~160	140-200	320-480	800-1000
Main motor (kW)	280	450	560	1400	2500