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DUPLEX ROLLER HEAD UNIT

Overview

Roller head unit that has advantageous characteristics superior to the conventional calender system

The roller head unit consists of a single or duplex extruder, a die head, and a vertical two-ball calender with head clamping devices. The broad width head and calender form the rubber compound into a sheet of uniform thickness, which can be varied from 0.5 mm -20 mm or greater in thickness. Nakata roller head units provide significant benefits over conventional calender systems in the production of inner liners, rubber sheets, V-belts, and elastic components.

DUPLEX ROLLER HEAD UNIT

The duplex roller head unit consists of two extruders, a die head, and vertical two roll calender. The rubber is evenly distributed in the die head over its entire width, and is then fed into the calender nip. A feedback system of control varies the RPM of the extruder screw or calender speed so that high quality rubber sheet (up to 2300 mm wide) can be produced in thickness from 0.5 mm to 20 mm or greater.

 

Duplex roller head system

 

Various configurations of duplex extrusion sheets

Specification

Major Specifications of Extruder and Roller Head System

 

Sheet head aperture Calender roll Product sheets
Motor capacity kw Width (mm) Height (mm) Roll diameter Surface length Width (mm) Thickness (mm)
200 1850 30 <600> <2000> 1450 1.5〜9
450 2300 28 700 2500 2200 1〜15
300 1300 28 500 1500 1200 0.5〜4
200 1050 28 400 1300 270〜 0.5〜5
110 700 10 500 1500 1250 0.1〜1.0
45 600 22 310 900 500 1.5〜5
30 550 8 400 700 550 0.2〜2.0
18.5 185 5 200 250 100 0.5
7.5 95 3 120 150 100 0.3〜2
4.4 30 3 80 48 40 0.5

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