Paper & Packaging
Laboratory Rotary Digester
Pressurised pulp cooking for R&D and process optimisation
The Laboratory Rotary Digester is designed for cooking raw materials (wood chips, bagasse, straw, bamboo, waste paper) under controlled temperature and pressure in the laboratory to simulate industrial pulping processes. The stainless-steel autoclave vessel rotates continuously to ensure uniform chemical penetration and temperature distribution. Digital temperature and ampere indicators with preset controllers on the control panel enable precise process control. This instrument is essential for pulp mills, research institutions and paper technology programmes studying kraft, soda, sulphite and other pulping processes.

Technical specifications
Vessel
Stainless steel autoclave with gasket seal
Rotation
Continuous, motorised
Temperature control
Digital indicator with preset controller
Pressure monitoring
Dual analogue gauges
Safety
Relief valve with gasket seal
Heating
Electric heater with ammeter monitoring
Power supply
220/440 V AC, 3-phase (as configured)
Applications
Pulp mill process optimisation
Raw material evaluation (wood, bagasse, straw, bamboo)
Recycled fibre and deinking studies
University and research institution pulp technology programmes
Frequently asked questions
What is the Laboratory Rotary Digester?+
The Laboratory Rotary Digester is designed for cooking raw materials (wood chips, bagasse, straw, bamboo, waste paper) under controlled temperature and pressure in the laboratory to simulate industrial pulping processes. The stainless-steel autoclave vessel rotates continuously to ensure uniform chemical penetration and temperature distribution. Digital temperature and ampere indicators with preset controllers on the control panel enable precise process control. This instrument is essential for pulp mills, research institutions and paper technology programmes studying kraft, soda, sulphite and other pulping processes.
What standards does the Laboratory Rotary Digester comply with?+
The Laboratory Rotary Digester complies with the following standards: TAPPI T 200 (general pulping practice).
What are the key features?+
- Stainless steel autoclave vessel for chemical and pressure resistance
- Continuous rotation for uniform cooking
- Digital temperature indicator with preset controller
- Ampere meter for heater load monitoring
- Pressure gauges for live monitoring — temperature and pressure
- Safety relief valve and gasket sealing system
- Control panel with rotary switches and push buttons
- Suitable for kraft, soda, sulphite and various pulping processes
Where can I buy the Laboratory Rotary Digester in India?+
The Laboratory Rotary Digester is manufactured and sold by Techno India, based in Roorkee, Uttarakhand. Contact us at sales@techno-india.com or call 08077928706 for pricing and delivery. We provide installation, calibration and AMC across India.
Next step
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