T2140 deep hole boring machine

The machine is  a deep hole processing equipment which mainly processes cylindrical workpieces. It can do drill, boring and burnishing, and can process through holes, stepped holes, blind holes, etc. The processing aperture accuracy can reach IT7~IT8 or above, and the surface roughness can reach Ra0.4-0.8μm. The internal chip removal method is used for drilling. The tool feed adopts the servo drive system to realize stepless speed regulation. The machine bed is made of high-quality cast iron, which has strong rigidity and good precision retention. The bed guide rail is quenched to have high wear resistance and good precision retention. Widely used in mechanical hydraulic cylinders, special oil cylinders, coal cylinders, hydraulic machinery, high pressure boiler tubes, petroleum, military, electric power, aviation and other industries.

Machine precision：

Roundness……………………………………………≤0.02㎜

Cylindricity…………………………………………≤0.035/500㎜

Machining precision…………………………………………ⅠT8～ⅠT10

Rounghness（drilling）…………………………………≤Ra3.2～12.5μm

Rounghness（boring） ……………≤Ra1.6～3.2μm（depending on workpiece material）

Rounghness（burnishing）………………………………≤Ra0.4μm

Straightness  less than 0.15/1000

Hole deviation  ≤0. 5/1000

Machining efficiency：

cutting speed ：normally 50-100m/min

Feed speed ;   normally 10-100mm/min

Maximum stock removal when boring：not bigger than  20mm

TECHNICAL DATA