THE JAPAN STEEL WORKS, LTD. The Japan Steel Works, Ltd. Plastics Machinery Business Division Mixing Control Device Drive R.S.B. adjusts the polymer flow rate by two rotating slot bars on upside and downside. Outline Polyolefin extruders equip the mixing control device to produce variety of polypropylene or polypropylene grades by one machine. Rotary slot bar is the mixing control device with high operability and productivity. Features ■ Less stagnation area than the gate type Close Position Middle Position Open Position Figure 3 R.S.B. and Gate type comparison Opening Area at Mixing Control Section [cm2] ■ Improved specific energy control by the linear influence of the slot clearance ■ Efficient oxygen prevention with high sealing performance ■ Smooth drive by the rotating structure ■ Compact size than the gate type Figure 4 Relation of specific energy and slot clearance Figure 4 shows the trial operation data by CIM90. R.S.B shows the linear relationship between the mixing degree (Esp) and the opening area. R.S.B. has a wider operation range which enable a flexible mixing control. Japan Steel Works, Ltd. Tokyo Head Office 9 Gate City Osaki West Tower 1-11-1, Osaki, Shinagawa-ku, Tokyo 141-0032, Japan S +81 (0)3-5745-2072 [email protected] © https://www.jsw.co.jp/ Europe (Germany) S +49 (0)211-788-600-0 ©http://www.jsw.de/ USA S + 1-248-536-0288 El [email protected] ©http://www.jswamerica.com/ China (Shanghai) fi +86-21-5206-7031 © http://www.jsw-china.com/ Singapore 3 +65-6861-4511 Thailand S+66-2-738-5272