该机主传动在0.5～5m/min范围内无级可调。设有百分表测量系统使上下辊之间达到适当的精确尺寸。加热炉内各辊轴衬套采用自润滑、耐热性能都很好的特殊材料，其它各辊采用外球面轴承，定心性能好，维修极为方便。加热炉内有温度自控装置，确保中空玻璃质量。 The main driving system ofthis machine adoptd ACmo-toorfrequency conversion fiming lt canbe adjusted stepless in the limit of 0.5～5m/min.lt has measuyrement system with hundred-cent watch hundred-cent watch to obtain suit and exactt size between the upper and lower rollers. AII roller bearinh bushes inside the heatinh stove adopt special material which has good performance in self-lubri-cating and heat resistasnhce The other. rollers adopt outer-shere bearing which has good alignment performance, and it，s convento repair. Inside the heating stove isa temperature self-con-trolling setting to insurethe quality of glass.