Deep Hole Drilling for Industrial Rollers
Industrial rollers are used across many industries, including paper, printing, steel, plastic film, and textile manufacturing. They all have one thing in common: they need a through-hole for heating, cooling, or weight reduction. I have drilled rollers ranging from 1 meter to 6 meters long. The work is similar to general long shaft drilling but with some specific requirements. Roller Types and Applications Roller Type Industry Use Bore Function Typical Length (m) Bore Dia (mm) Wall Thickness (mm) Heated roller Laminating, drying, calendaring Oil/water circulation for heat 1-4 20-80 8-20 Cooling roller Film extrusion, paper making Cooling fluid circulation 1-4 20-80 8-20 Idler roller Conveyor support, web guiding Weight reduction 1-6 30-150 5-15 Drive roller Conveyors, processing lines Lubrication/cooling passages 1-5 20-100 10-30 Furnace roller High-temp steel processing Water cooling 2-6 30-120 10-25 Printing roller Flexo/gravure printing Ink circulation, weight reduction 1-3 15-60 10-20 The deep hole drilling for long shaft applications covers additional techniques that apply to roller drilling, especially for the longer parts. ...