Product Introduction
The 23-liter Hollander Beater (Valley beater) is an international standard piece of equipment for paper laboratories and an essential tool for studying pulping and papermaking processes. The machine uses the mechanical force generated between the rotating flybar roll and the stationary bedplate to cut, crush, knead, split, swell, and refine various fiber pulps and recycled fibers, simultaneously causing cell wall displacement and deformation, and rupture of the primary and secondary wall outer layers. By varying the bedplate load and beating time, pulps of different beating degrees can be obtained for studying pulp and sheet properties. It is widely used for beating trials on various plant fibers, synthetic fibers, carbon fibers, and glass fibers, and is indispensable for paper mill quality control, process development, and teaching and research. It meets ISO 5264/1, TAPPI T200, and GB/T 24325-2009 standards.

Key Features
International Standard Compliance: Strictly meets ISO 5264/1, TAPPI T200, and GB/T 24325-2009 laboratory Valley beater method standards, ensuring internationally comparable results.
Stainless Steel Wet End: Key wet-end components including the trough, flybar roll, and bedplate are all stainless steel, durable and corrosion-resistant.
Adjustable Beating Parameters: The load weight can be changed to adjust beating load; beating time is programmable from 1-999 minutes with automatic control to meet varying beating degree requirements.
Automatic Cleaning Function: Equipped with an automatic cleaning port—connecting water or air supply enables automatic cleaning of the flybar roll, bedplate, and trough for more convenient 

maintenance.
Patented Soft-Mount Motor: The motor uses a patented spring-loaded soft-mount design for smooth, low-noise operation.
Broad Fiber Adaptability: Suitable for beating trials on various raw materials including plant fibers, synthetic fibers, carbon fibers, and glass fibers.
Removable Anti-Splash Cover: The top anti-splash cover is removable for easy internal cleaning.

Technical Specifications

FAQ
1. Beating degree not reaching standard
Incorrect stock consistency, excessive flybar-bedplate gap, or insufficient load. Adjust to standard consistency; fine-tune gap; load all standard weights.
2. Abnormal operating noise
Hard foreign object inside, loose blades, or dry bearings. Stop and remove debris; tighten blades; lubricate bearings.
3. Excessive vibration
Machine not level, loose footings, or uneven belt tension. Level machine; tighten anchor screws.
4. Overheating, stock temperature rising too fast
Prolonged beating or gap too small causing excessive friction. Increase gap appropriately; beat in intervals with cooling.
5. Water or stock leaking from trough
Shaft seals or gaskets aged or damaged. Replace seals and waterproof gaskets.
6. Jerky start/stop, weak operation
Slipping aged belt or unstable motor voltage. Tension or replace drive belt; check power supply.
7. Inaccurate or missing revolution count
Sensor probe dusty or misaligned. Clean probe; reposition sensor correctly.
8. Rapid wear of flybar roll and bedplate
Gap chronically too small or stock contains grit. Filter stock to remove impurities; adjust working gap reasonably.
9. Uneven fiber treatment
Insufficient beating time or stock not fully circulating. Extend standard beating duration.

After-Sales Service
Thank you for your inquiry. Shandong Annimet Instrument Co., Ltd., established in 2007, has dedicated nearly two decades to the R&D, production, and sales of quality testing instruments. We regard product quality as the lifeblood of our enterprise and pursue excellence in every product developed. Looking back at the history of scientific and technological development, we firmly believe that every product is born from technological advancement, every technology derives from material exploration, every material discovery depends on process improvement, and every process improvement relies on experimental support. Humanity never lacks ideas; we need the means to realize them. Annimet Instrument will consistently provide the tools for your ideas and creativity. Should you have any questions, please feel free to contact our customer service team—we are fully committed to providing excellent pre-sales, in-sales, and after-sales service.