Nov 5, 2026
Screw Compression Ratio: How to Choose the Right One
Choose a screw compression ratio based on the material grade, processing method and complete screw design. A higher ratio may […]
Read Guide →SCREWS & BARRELS · SINCE 2006
YINGDA TECHNICAL GUIDES
Practical guidance on screw and barrel selection, wear protection, materials and maintenance — tailored to your production needs.
THE TECHNICAL LIBRARY
Nov 5, 2026
Choose a screw compression ratio based on the material grade, processing method and complete screw design. A higher ratio may […]
Read Guide →
Oct 31, 2026
The five key injection molding process parameters are temperature, pressure, speed, time and position. Together, they affect how plastic melts, fills the mold, packs and cools.
Read Guide →
Oct 30, 2026
Choosing an injection molding screw is not only about selecting a machine with enough clamping force. You also need a […]
Read Guide →
Oct 29, 2026
A plastic formulation may run well on a laboratory extruder but perform differently on a production line. The output may […]
Read Guide →