Mixing Control Device Rotary Slot Bar "R.S.B"

Product catalog summary

Contact Information:
Japan Steel Works, Ltd. has offices in Tokyo, Europe (Germany), USA, China (Shanghai), Singapore, and Thailand. Contact details include phone numbers and email addresses for each location.

Introduction:
This document is a leaflet from the Plastics Machinery Business Division of Japan Steel Works, Ltd., focusing on the Rotary Slot Bar (R.S.B) technology used in polyolefin extruders.

Specifications and Features:

The R.S.B. is a mixing control device designed for polyolefin extruders, allowing the production of various polypropylene grades with a single machine.
Key features include less stagnation area compared to gate types, improved specific energy control through linear slot clearance influence, efficient oxygen prevention, smooth drive due to its rotating structure, and a more compact size.

Functionality:

The R.S.B. adjusts polymer flow rates using two rotating slot bars positioned on the upside and downside, providing a flexible mixing control.
Figures illustrate the relationship between specific energy and slot clearance, and compare R.S.B. with gate types, highlighting the R.S.B.'s wider operation range and linear relationship between mixing degree and opening area.

Trial Operation Data:
Figure 4 presents trial operation data by CIM90, demonstrating the linear relationship between the mixing degree and the opening area, showcasing the R.S.B.'s effectiveness in mixing control.

Catalog excerpts

Mixing Control Device Rotary Slot Bar "R.S.B"-1

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

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