The document discusses vertical roller mill reducers. It introduces NGC's reducer products, including various vertical parallel and multi-stage models. It provides power, speed, and load specifications. The reducer transmits torque and withstands vertical loads in mills. Several NGC reducer models and their applications in cement and coal mills are mentioned dating back to 2002.

1. Vertical Roller Mill Reducer
Product Introduction
The vertical roller mill reducer is a key transmission part for the vertical mill, which not only
transmits the torque but sustains the vertical load. It is widely used in industries of construction
material, power generating and metallurgy for raw material vertical mill, cement vertical mill, coal
vertical mill and slag mill in the poor working condition. The vertical mill reducer NGC
researched and developed has the characteristics of being compact, light, big torque and high
reliability. Its technical level reaches advanced at home and abroad.
NGC has finished development of multiple types of products, as following:
Vertical parallel shafts mill reducer (MLPX series);
Vertical two stages mill reducer (MLX series);
Vertical three stages mill reducer (MLXS、MLXSD series);
Vertical double distributaries mill reducer （MLXFD series）；
Vertical double planetary mill reducer （MLXSS series）；
Detailed parameters
Power: P=150 ~ 8000kW；
Input rotation speed: n=740 ~ 1500rpm；
Ratio range: i=15 ~ 80；
Vertical static load: N1≤20000kN；vertical dynamic load: N2≤60000kN.
Qualification and case
Product certificate:
Application:

2. The first MLX200(2000KW)vertical mill reducer is used by ChangZhou PanGu cement company
(ShenYang heavy mill, 2500T/D raw material mill) in 2002;
The first MLXFD450 （ 4500kW ） vertical mill reducer is used by LiaoNing BoHai cement
company (Smith mill, 5000T/D raw material mill) in 2006;
The first MLXFD540（5400kW）vertical mill reducer is used by Indian Dalmia cement company
(Pfeiffer mill, 5000T/D cement vertical mill) in 2007;
Since 2006, the
MLXS330、 MLXSS360、 MLXSD400、 MLXSD420、 MLXSD450（3150~4500kW） vertical mill
reducers are widely used in HuBei HuaXin cement company, JiLin YaTai cement company,
HuaRun cement company, ZheJiang HuShan cement company, YunNan Kun steel cement
company, SiChuan LiSen cement company, TaiWan YaDong cement company, TaiWan XingFu
cement company, Lafarge cement company and Heidelberg cement company etc. Supporting mill
companies are: TianJing institute, HeFei institute, Nanjing institute, ChenDu institute, ShenYang
heavy load company, ZheJiang TongLi company, Danmark Smith company, German loeshe
company, German pfeiffer company and Japan ube company etc.
MLX20~MLX80, MLX90, MLX100 series coal vertical mill reducers are widely used in thermal
power generating units and coal mill systems in metallurgy and cement industrious at home and
abroad. Supporting mill companies are: ShangHai heavy load company, Beijing generating power
company, ShenYang heavy load company and ChuangChun generating power company etc.
customers model Qty Date remark / customers oversea
JingyangcementplantZhenjiang (all the spare parts) MLX330F 1 2004 Denmark Smith
Huaxin Hubei MLX330-01 2 2006 Scoria mill
Cement plant Bohai MLX450-01 1 2006 Denmark Smith
Export to pakistan MLX250-06 1 2007
Export to pakistan MLX250-07 2 2007
Export to India Dalmia Cement (Bharat) Limited MLX540-01 1 2007 Cement scoria mill/ Pfeiffer
Germany
Export to India Dalmia Cement (Bharat) Limited MLX400-05 1 2007 Cement scoria mill/
PfeifferGermany
Export to Pakistan MLX250-04 3 2007
Export to Pakistan (spare parts） MLX250-01 1 2007
Export to pakistan MLX250-09 1 2007
Export to Vietnam MLX200-12 2 2007

3. Export to Pakistan MLX300-02 2 2007
International invest cement Co.,Ltd Hainan MLX400-04 1 2008 Denmark Smith
Lafarge tenghui cement plant Chongqing MLX225-01 1 2008 Polysius Germany
Lafarge Dujiangyan cement plant MLX280-05 1 2008 Polysius Germany
LafargeDongjun cement plant MLX280-06 1 2008 Polysius Germany
Panjing cement plant Anhui MLX420-02 1 2008 Denmark Smith
Expoet to Heidelberg UK MLX280-07 1 2008 Denmark Smith
Geatwall aluminium project China MLX200-24 1 2008 Scoria mill
Bora second project India MLX250-14 1 2008
Tianjin cement design institute ( Tailand xingfu ) MLX420-01 2 2008 Cement scoria mill
Huaxin cement Hubei MLX330-01 10 2008 scoria mill
Huailong second project Huaian steel Jiangsu MLX300-03 1 2008 Yubu Japan
Tianjin cement design institute (Qingya Hefei) MLX170-05 1 2008 Scoria mill
Aviation technology import and export company MLX200-25 1 2008
(turkey)
Kisheng Kazakstan Beijing MLX300-04 1 2008
Yadong Sichuan MLX360S-01 1 2008 PolysiusGermany