SERVODAY Rotary Drum Wood Chipper
Advanced Napier Grass Processing for Biomass Energy
The SERVODAY Rotary Drum Wood Chipper is engineered to produce consistent, high-quality chips from both dry and green and dry Napier Grass, ideal for biomass energy generation, pellet production, and other biofuel applications. Built for robust performance and high-volume processing, it efficiently handles the fibrous and dense nature of Napier Grass. This machine supports sustainable energy initiatives by converting locally abundant Napier Grass into valuable fuel feedstock, with adaptable settings to meet diverse operational requirements.

Efficient, Adaptable, and Operator-Friendly
Key Advantages of the SERVODAY Rotary Drum Straw Chipper for Napier Grass
Capable of processing up to 30 tons per hour, the SERVODAY Rotary Drum Straw Chipper is engineered for high-throughput Napier Grass biomass projects. It efficiently handles a wide range of Napier varieties—green or dry, baled or loose—including CO-series (CO-1 to CO-5), IGFRI lines, NB-21, and Super Napier. The chipper delivers adjustable output sizes to match downstream requirements, from fine chips optimized for pelletizing to coarser fractions suitable for direct combustion or gasification. Built with energy-efficient mechanics, it features quick-change knives, centralized lubrication, and robust rotor dynamics for continuous operation with minimal maintenance.
Find Your Perfect Servoday Napier Grass Shredder/Chipper
Explore Our Range of Powerful and Efficient Models
Model SWC-18/50 | Model SWC-22/68 | Model SWC-24/75 | Model SWC-33/105 | Model SWC-40/70 | Model SWC-40/105 | ||
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Infeed Opening | mm | 180 x 500 | 220 x 680 | 240 x 750 | 330 x 1050 | 400 x 700 | 400 x 1050 |
Rotor Diameter | mm | 650 | 800 | 800 | 1000 | 1300 | 1300 |
Number of Blades | qty | 2 | 2 | 2/3/4 | 2/4 | 2/3/4 | 2/3/4 |
Rotor Speed | rpm | 600 | 650 | 650 | 550 | 410 | 410 |
Chipping Length | mm | 30 | 30 | 30 | 34 | 34 | 34 |
Required Motor Power | kW | 55 | 110 | 132 | 200 - 250 | 200 - 315 | 315 |
Capacity* | tph | 2 - 3 | 3 - 6 | 5 - 10 | 8 - 15 | 10 - 18 | 15 - 30 |
Approx. Weight | kg | 4500 | 7500 | 8000 | 12500 | 13200 | 14000 |
*Depending on input material and chipping length
Durable Design with Smart Operation
Technical Highlights of the SERVODAY Rotary Drum Straw Chipper for Napier Grass
The SERVODAY Rotary Drum Straw Chipper is built for high-efficiency Napier Grass processing with robust, low-maintenance engineering. It features hardened alloy steel knives with adjustable angles and a quick-change system for consistent cutting and reduced downtime. A heavy-duty drum, clog-resistant design, and reinforced bearings ensure smooth, quiet operation. The motorized infeed rollers adjust automatically to handle both green and dry Napier, while an energy-saving drive, intuitive controls, and dust suppression provide safe, efficient, and user-friendly performance.

SERVODAY Rotary Drum Chipper for Napier Grass - Advanced Biomass Processing Solutions
Understanding Napier Grass: Composition & Characteristics - The Perfect Biomass Feedstock for SERVODAY Rotary Drum Chippers
Napier grass (Pennisetum purpureum) is a high-yielding perennial grass with exceptional biomass potential, containing 45-50% cellulose and 15-20% lignin - ideal for biofuel applications in SERVODAY chippers. Its stems grow rapidly to 2-4 meters height with 1-2 cm diameter, featuring a tough fibrous outer layer that SERVODAY's specialized blades cut efficiently. Fresh Napier grass contains 65-70% moisture which reduces to 10-15% when properly sun-dried - optimal for SERVODAY's moisture-sensing technology. With a superior calorific value of 16-18 MJ/kg (dry basis), it outperforms most agricultural residues when processed through SERVODAY's high-efficiency chippers. The grass contains 3-5% silica in its epidermal cells, which SERVODAY's tungsten carbide-tipped blades handle effortlessly while maintaining 92-95% cutting efficiency. SERVODAY's advanced feed system accommodates the grass's natural curvature and variable stem thickness without jamming, ensuring continuous operation.
Field to Factory: Harvesting & Pre-Processing - Optimizing Napier Grass for SERVODAY Chipping Systems
Fresh Napier grass arrives at processing facilities in dense bundles perfectly suited for SERVODAY's 20"x24" wide feed openings. Farmers harvesting every 45-60 days find SERVODAY's hydraulic feed rollers automatically adjust to stem diameter variations (1-3cm). For optimal performance in SERVODAY chippers, stems should be field-dried for 3-5 days to reduce moisture below 25% - preventing sap accumulation in SERVODAY's precision-engineered cutting chambers. SERVODAY technicians recommend leaf removal before processing as leaves contain up to 7% silica that the company's specialized blade coatings resist. The SERVODAY PRO series' intelligent feeding system, combined with 30HP to 100HP power options, ensures smooth processing of bulk Napier grass quantities with 98% uptime.
Green vs Dry Processing Strategies - SERVODAY's Moisture-Specific Chipping Solutions
Processing fresh Napier grass requires SERVODAY's patented serrated TCT blades that prevent fibrous wrapping around the rotor. The SERVODAY chipper's 30° angled discharge chute with air-assist technology prevents clogging from high-moisture material. For dry processing, SERVODAY's standard hook blades achieve 25-30% higher throughput as the brittle stems fracture easily. SERVODAY PRO models feature integrated moisture sensors that automatically adjust between green (15-20mm screen/500 RPM) and dry (10-15mm screen/650 RPM) settings. The SERVODAY Variable Frquency Drive delivers consistent torque regardless of moisture, while optional dust suppression maintains air quality - making it India's most advanced Napier grass chipper.
SERVODAY Storage Solutions for Processed Napier Preserving Biomass Quality After Chipping
SERVODAY's uniform chip output enables dense stacking at 180-220 kg/m³ in the company's recommended storage systems. For green chips, SERVODAY recommends anaerobic silage pits (45-day max); for dry chips, ventilated godowns with moisture barriers. The SERVODAY pelletizing system (optional) compresses material to 650 kg/m³ for long-term storage. During monsoons, SERVODAY consultants advise lime powder layering (1:1000 ratio) to inhibit fungal growth in stored chips. SERVODAY's storage guidelines include ideal pile heights (4m dry/2.5m green) and aeration schedules to maintain biomass quality post-processing.
SERVODAY's Advanced Chipping Technology - Engineered Specifically for Demanding Napier Grass Applications
The SERVODAY Rotary Drum Chipper features a 4-knife interlocking rotor that cleanly severs Napier's vascular bundles without crushing. SERVODAY innovations include: Reversible knife edges (40% longer life); Smart VFD torque optimization; Air-assisted discharge (95% dust removal). Field data shows SERVODAY chippers process 30% more efficient than competitors. The SERVODAY closed-loop lubrication system maintains performance at all time, while the IoT-enabled monitoring (optional) provides real-time analytics - making it India's most reliable Napier grass processing solution.
Varieties of Napier Grass Used for Biomass and Forage
Napier Grass (Pennisetum purpureum), also known as Elephant Grass, has several improved and regionally adapted varieties cultivated for biomass energy and livestock forage. Commonly used varieties include CO-1, CO-2, CO-3, CO-4, and CO-5, developed by Tamil Nadu Agricultural University, with CO-3 and CO-4 being widely preferred for their high biomass yield and regrowth potential. IGFRI-3 and IGFRI-5, bred by the Indian Grassland and Fodder Research Institute, are suitable for multiple cuts and dryland conditions. Other popular cultivars include Yemen Napier, NB-21, APBN-1, and Super Napier, known for their rapid growth, high protein content, and adaptability to various agro-climatic zones. These varieties differ in terms of height, tillering capacity, leaf-stem ratio, and drought tolerance, making them suitable for targeted applications in both renewable energy and dairy industries.

Handling Diverse Napier Grass Feedstock
Napier Grass Varieties Processed by SERVODAY Rotary Drum Straw Chipper
The SERVODAY Rotary Drum Straw Chipper efficiently processes a wide range of Napier Grass varieties, including CO-1, CO-2, CO-3, CO-4, CO-5, IGFRI-3, IGFRI-5, NB-21, APBN-1, Yemen Napier, and Super Napier. It handles both green and dry forms of Napier Grass, as well as harvest residues and offcuts, converting them into uniform chips ideal for pellet production and other bioenergy applications. This ensures high feedstock consistency, enhances downstream processing efficiency, and supports sustainable biomass utilization in renewable energy systems.
Versatile Solutions for Renewable Energy
Applications of SERVODAY Rotary Drum Wood Chipper for Napier Grass
SERVODAY’s chipper produces high-quality bamboo chips ideal for pellet manufacturing, enhancing pellet durability and energy content. It supplies biofuel feedstock for Combined Heat and Power (CHP) plants, gasification units, and biomass boilers. Additionally, it serves horticulture and landscaping by generating mulch that aids soil moisture retention and weed control.


Integrated Equipment for Seamless Operations
SERVODAY Complete Systems for Napier Grass Biomass Processing
SERVODAY offers turnkey solutions including biomass fuel feeding and storage systems designed for bamboo applications. Material handling conveyors streamline the flow from storage to processing, while containerized hydraulic moving floor systems facilitate efficient biomass storage and regulated discharge. Furthermore, SERVODAY supports pellet production through dedicated pellet plants and compressed wood pallet manufacturing, helping optimize logistics and fuel supply chains.
Why Rotor Selection Matters?
Higher productivity – Faster, smoother feeding with fewer jams. Lower maintenance – Right blade type reduces wear & downtime. Better chip quality – Uniform size for pellets, biomass, or pulp.
Whether you're processing wood, biomass, or other organic materials, trust SERVODAY's Rotary Drum Chipper to deliver exceptional results, every time. Experience the precision and reliability of SERVODAY's Rotary Drum Chipper Machine, and unlock the full potential of your biomass processing operations.

Trusted Performance for Sustainable Bamboo Energy
Why Opt for the SERVODAY Rotary Drum Straw Chipper?
Purpose-built for Napier Grass biomass, the SERVODAY Rotary Drum Straw Chipper ensures uniform chip quality critical for pelletizing and other bioenergy applications. Its durable design and high operational efficiency provide a scalable, long-term solution for biomass processing. Backed by SERVODAY’s integrated support and turnkey systems, it forms a complete platform that maximizes productivity while reducing environmental footprint.


Boosting Efficiency and Ease of Use
Optional Enhancements and Upgrades
Key upgrades available include a dust suppression system to maintain cleaner air quality and automatic feeder control to maximize throughput. Wear-resistant coatings extend the lifespan of critical parts, reducing maintenance needs. Remote monitoring capabilities allow operators to track machine health and performance in real time, enabling proactive management and reducing downtime.
Discover the Efficiency of SERVODAY's Rotary Drum Chipper
Unlock optimal performance and efficiency with SERVODAY's Rotary Drum Chipper, designed for superior processing of Wood, Bamboo and Biomass materials. Contact us today to request a quote.

Enhancing Performance and Convenience
DOWNLOAD BROCHURE | Servoday Wood & Biomass Chipper
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Unlocking Versatility: The Ultimate SERVODAY Rotary Drum Chipper Solution
Discover unparalleled versatility with SERVODAY Rotary Drum Chipper. Our innovative technology allows you to utilize a wide range of materials at minimal cost, making SERVODAY Rotary Drum Chipper the most versatile solution on the market.

Soft or Hard Wood Chips

Cotton Stalk

Corn (Maize) Cobs

Soft & Hard Wood

Dry & Green Bamboo

Sugar Cane Trash

Napier Grass - Elephant grass (Pennisetum purpureum)

Empty Fruit Bunch (EFB)
FAQ - SERVODAY Rotary Drum Chipper - High-Capacity Wood Chipping Solutions for Biomass & Industrial Applications
Premium Wood & Biomass Rotary Drum Chipper for Pellet Production, Pulp Mills & Bioenergy | Customizable Chip Sizes
View Servoday Rotary Drum Chippers in Different Stages
With Servoday Wood Chippers, you can use almost every material that is available to you at low cost making it the most versatile Wood Chipper available on the market.
















Discover the Efficiency of SERVODAY's Rotary Drum Chipper
Unlock optimal performance and efficiency with SERVODAY's Rotary Drum Chipper, designed for superior processing of Wood and Biomass materials. Contact us today to request a quote.
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