Overview of Laboratory Valley Beater
The Laboratory Valley Beater is a standard pulp testing instrument used for laboratory beating experiments, fiber treatment evaluation and papermaking research.
Based on the traditional Valley Beater method, the equipment applies mechanical action between the rotating knife roll and stationary bedplate to process pulp fibers. During beating, fibers undergo cutting, compression, kneading and fibrillation, resulting in changes in fiber structure and pulp properties.
The Valley Beater is widely used for evaluating the influence of beating conditions on pulp performance, including drainage characteristics, fiber development and paper strength properties.
It is suitable for various fiber materials, including wood pulp, plant fibers, synthetic fibers, carbon fibers and glass fibers, making it an important laboratory instrument for paper mills, universities and research institutions.
Working Principle of Valley Beater
The Laboratory Valley Beater works by applying mechanical forces between the fly knife roll and bedplate inside the beating chamber.
During operation, pulp suspension with a specified concentration is placed into the beating tank. The rotating knife roll creates repeated mechanical impacts and compression on the fibers, causing:
- Fiber cutting
- Fiber swelling
- Fiber fibrillation
- Cell wall modification
- Improvement of fiber bonding ability
By adjusting the pressure between the knife roll and bedplate and controlling beating time, pulp samples with different beating conditions can be prepared for further analysis.
During laboratory evaluation, samples can be collected at different beating intervals and tested for freeness changes using a Canadian Standard Freeness Tester (CSF Tester).
（链接 Canadian Standard Freeness Tester）
Key Features of Laboratory Valley Beater
Standard Valley Beater Testing Method
The equipment follows internationally recognized Valley Beater testing methods and complies with ISO 5264-1 and TAPPI T200 standards.
Effective Fiber Treatment Evaluation
The mechanical beating process helps researchers study changes in pulp characteristics and evaluate the effect of beating conditions.
Suitable for Multiple Fiber Materials
The Valley Beater can be used for testing:
- Wood pulp
- Plant fibers
- Synthetic fibers
- Carbon fibers
- Glass fibers
Adjustable Beating Conditions
The beating pressure and treatment time can be adjusted according to different experimental requirements.
Stable Laboratory Performance
The robust structure ensures reliable operation and repeatable results during long-term laboratory testing.
Technical Specifications & Parameters
| Item | Specification |
|---|---|
| Model | DJ-WL |
| Standard Pulp Capacity | 23 L |
| Beating Tank Volume | 45 L |
| Pulp Quantity | 200–700 g bone-dry pulp |
| Fly Knife Roll Size | Φ194 × 155 mm |
| Rotation Speed | (8.3 ± 0.2) r/s; (500 ± 10) r/min |
| Water Supply | Intermittent or continuous water supply |
| Power Supply | AC380V, 50Hz |
| Test Conditions | Temperature 10–30℃; Relative humidity ≤85% |
| Net Weight | Approx. 220 kg |
Standards Compliance
The Laboratory Valley Beater complies with:
- ISO 5264-1
- TAPPI T200
- GB7980-87
These standards define laboratory pulp beating procedures for evaluating changes in pulp properties during beating tests.
Applications of Laboratory Valley Beater
The equipment is widely used in:
- Laboratory pulp beating tests
- Paper mill quality control
- Pulp property evaluation
- Papermaking process research
- Fiber material studies
- University teaching laboratories
- Research institute testing
Valley Beater vs PFI Mill Laboratory Beater
The Valley Beater and PFI Mill Laboratory Beater are both used for laboratory pulp treatment studies, but they follow different testing methods.
| Valley Beater | PFI Mill Laboratory Beater | |
|---|---|---|
| Main Method | Valley beating method | PFI refining method |
| Main Standard | ISO 5264-1 / TAPPI T200 | ISO 5264-2 / TAPPI T248 |
| Working Principle | Knife roll and bedplate mechanical action | Controlled refining between rotor and housing |
| Main Purpose | Pulp beating evaluation | Laboratory pulp refining analysis |
| Typical Application | Standard beating tests | Fiber refining performance studies |
Why Choose VANVEO Laboratory Valley Beater
- Designed according to international laboratory beating standards
- Suitable for different fiber materials
- Stable mechanical structure
- Repeatable testing performance
- Professional pulp and paper laboratory equipment supplier
- Complete laboratory solutions for pulp testing and paper research
FAQ
What is a Laboratory Valley Beater used for?
A Laboratory Valley Beater is used for standardized pulp beating tests to evaluate changes in fiber properties and pulp performance.
What is the Valley Beater method?
The Valley Beater method uses mechanical action between a rotating knife roll and bedplate to treat pulp fibers under controlled laboratory conditions.
What standards does the Valley Beater comply with?
The equipment complies with ISO 5264-1, TAPPI T200 and GB7980-87 laboratory beating standards.
What materials can be tested with a Valley Beater?
It can be used for wood pulp, plant fibers, synthetic fibers, carbon fibers and glass fibers.
What equipment is used after Valley Beater testing?
After beating tests, pulp properties can be further evaluated using equipment such as a Canadian Standard Freeness Tester to measure drainage characteristics.
Related Paper Testing Equipment
For complete pulp and paper laboratory testing, VANVEO provides:
- PFI Mill Laboratory Beater – Laboratory pulp refining and fiber treatment analysis
- Canadian Standard Freeness Tester – Pulp drainage and freeness measurement
- Bauer Fiber Classifier – Fiber length distribution analysis
- Electric Rotary Digester – Laboratory pulp cooking experiments
- Laboratory Sheet Former – Laboratory paper sheet preparation
