1.Overview NGW series belong to hard-tooth-faced planetary gear reducers. They are produced with advanced technique and their structures are novel. They are widely used in many areas such as metallurgy, mine, lifting, transportation, textile, cement, light industry, chemical, pharmacentical, dye printing and so on. 2.Features 1. Compared with the ordenary cylindrical geared reducers of the same level, their weigt is 1/2 lower and their volume is only 1/2-1/3 of the former. 2. Their transmission efficency is very high. 1-stage achieves 97%, 2-stage 94%, 3-stage 91% 3. The range of transmission power is very wide, from 1kw to 1300kw 4.Produced with hard-tooth-faced, they can be used widely and in long period. Technical Parameter 1-stage: Model NGW11......NGW121 , size 1 to size 12 Range of the Ratio: 2. 8-12. 5 Range of the Rated Power: 2. 8-1314kw 2-stage: Model NGW42......NGW160 , size 1 to size 12 Range of the Ratio: 14-160 Range of the Rated Power: 0.7-517kw 3-stage: Model NGW73......NGW123, size 1to size 6 Range of the Ratio: 180-2000 Range of the Rated Power: 0.16-47.1kw