Product Introduction
The Somerville Standard Screen (Somerville type) is a dedicated laboratory pulp screening device manufactured in accordance with the TAPPI T275 standard. It separates and quantifies impurities such as stickies, plastics, sand, and metal particles from pulp through vertical oscillation of the screen plate. The device employs high-frequency vibration screening technology, with a screen plate size of 307 mm × 268 mm, a standard slot width of 0.3 mm, totaling 756 slots, an amplitude of 3.2±0.1 mm, and a water flow rate of 8.6 L/min. Optional screen plates with slot widths of 0.15 mm, 0.2 mm, 0.35 mm, and 0.4 mm are available for different impurity size detection needs. It is widely used for pulp quality evaluation and process control.

Key Features
TAPPI Standard Compliance: Strictly manufactured per TAPPI T275, with slot specifications and vibration parameters conforming to internationally accepted methods, ensuring accurate and comparable results.
High-Frequency Vibration Screening: Eccentric-driven at 690-700 rpm with an amplitude of 3.2±0.1 mm, achieving high screening efficiency for rapid and effective impurity separation.
Multiple Slot Options: Standard 0.3 mm slot plate (756 slots); optional 0.15 mm, 0.2 mm, 0.35 mm, and 0.4 mm slot plates available for different particle size detection requirements.
Easy Operation: Simple structure, convenient operation, and easy maintenance.
Broad Applicability: Suitable for impurity screening and filtration testing across various pulp types and industries.
Energy-Efficient and Environmentally Friendly: Adopts advanced energy-saving technology to reduce energy consumption and environmental impact.

Technical Specifications

FAQ
1. Slow screening, low throughput
Slots clogged with fibers or insufficient water pressure. Stop and rinse screen plate; adjust to standard water pressure.
2. Screen plate clogging, blinding
Pulp consistency too high or excessive impurities. Dilute stock; regularly backflush with clean water.
3. Inaccurate screening results, large data deviation
Unstable amplitude or abnormal speed. Inspect eccentric; calibrate operating speed.
4. Excessive machine vibration, abnormal noise
Loose footings or aged rubber damping mounts. Tighten footings; replace damping pads.
5. Water leakage and stock escaping
Aged gaskets on upper/lower chambers or clamps not locked. Replace gaskets; clamp door tightly.
6. Water pressure below standard
Clogged inlet filter or kinked piping. Clean filter; straighten water supply lines.
7. Motor overheating, weak operation
Prolonged continuous operation or bearings lacking grease. Allow intermittent cooling; lubricate bearings regularly.
8. Turbid discharge, incomplete screening
Screen plate deformed or damaged, or slots excessively worn. Replace with same-specification standard screen plate.
9. Breaker trips on startup
Wiring damp or motor overloaded. Dry circuitry; reduce single feed quantity.
10. Amplitude too low, below standard
Eccentric mass displaced or loose. Readjust counterweight; tighten and lock.

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.