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SZW Reciprocating Grate Stoker Biomass Boiler
- Capacity:1ton-75ton
- Typical Fuel:Biomass, coal, palm kernel shells palm fibre, bagasse, rice husk, cashew nut shells, coconut shells, agro waste
- Pressure:0.1-4.5Mpa
- Application:Factory production heat & power generation
- Manufacture Standard :GB, ISO, CE, ASME, DOSH, EAC
SZW Reciprocating Grate Biomass Boiler
SZW Series Reciprocating grate /step grate boiler, it's double drums and water tube boiler, scientifically design stove furnace to reach a higher thermal efficiency and energy saving, also environment protection.

To burn difficult biomass fuels efficiently, it adopts reciprocating grate, to ensure stable combustion, automatic ash removal, and minimal slagging.
Typical Fuel as following:
Palm kernel shell (PKS)
Cashew nut shell
Palm fiber / palm husk
Rice husk
Bagasse (sugarcane waste)
High-moisture biomass fuels
Industrial solid waste with low heating value

Features Reciprocating Grate Boiler
Wide Fuel Flexibility
1. Handles high-ash, high-moisture, and slag-prone fuels
2. Burns mixed fuels: cashew shells, palm fiber, wood chips, husks, etc.
3. No need for expensive, uniform fuel
Reliable & Low Maintenance
1. Reciprocating grate breaks up slag automatically
2. Simple, robust mechanical design
3. Easy to operate and maintain
Cost Effective
1. Uses local, low-cost biomass waste
2. High efficiency (up to 88%)
3. Reduces fossil fuel dependence
Technical Details Biomass Boiler
Intelligent Combustion Control System
1. Multi-zone air distribution: Air is supplied in sections along the grate length, with independent airflow control for each zone.
2. Real-time oxygen monitoring: Combustion air is automatically adjusted based on flue gas oxygen content to maintain optimal combustion.
3. Layered temperature control: Different grate zones are temperature-controlled to prevent local overheating and slagging.
Anti-Slagging Design
1. Optimized front and rear arches: Enhance heat radiation and gas mixing for stable ignition.
2. Special grate bars: High-temperature and oxidation resistant, with clinker-breaking structure.
3. Multi-stage ash cleaning: Combination of mechanical cleaning and soot blowers keeps heating surfaces clean.
Environmentally Compliant Emissions
1. Low-NOx combustion: Air staging and flue gas recirculation reduce NOx formation.
2. High-efficiency dust removal: Multi-cyclone or bag filter options meet strict emission standards.
3. Fly ash reuse: Collected ash can be reused as potassium fertilizer raw material, supporting resource recycling.

Catalogue All Products
1. Gas boiler, Lpg boiler, Diesel boiler, Heavy oil boiler, Dual fuel boiler, Exhaust gas waste heat recovery boiler
2. Coal boiler, Charcoal boiler, Wood boiler, Biomass boiler, Pellet boiler, Ricehusk boiler, Palm shells boiler
3. Electric boiler, Electric steam generator, Electric hot water boiler,
4. Thermal Oil Heater Boiler, Thermic Fluid Heater, Hot Oil Boiler. (Powered by gas, diesel, electric, coal, wood biomass)
5. Steam Boiler, Hot Water Boiler, Steam Generator Boiler, Combined Heat and Power Boiler, Superheated Steam Boiler
About us Yuanda Boiler
1. All products Certified With ASME, CE, ISO, EAC, DOSH, TUV, BUV, Ensuring High Quality and Compliance with International Standards.
2. Our company established since 1956, has 70 years manufactureing experiences, 18 Years export experience.
3. Global service team for boiler solution, boiler design, order contract, boiler delivery, boiler install and commissioning.
4. Until now, our products have been exported to 135 countries all over the world, trustable quality & services for lifespan.

| SZW Series Steam Boiler Technical Parameter Table | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Rated capacity(t/h) | Rated pressure | Rated steam temperature | feed temperature | Thermal efficiency | Boiler water volume(m³) | Exhaust temperation(℃) | Fuel comsumption(Kg/h) | max transportation weigh(t) |
| SZW2 | 2 | 1.0mpa-4.5mpa | 184℃-450℃ | 20/104℃ | >88% | 6.76 | 130.7 | 385.8 | 22 |
| SZW4 | 4 | 5.1 | 142 | 807 | 29 | ||||
| SZW6 | 6 | 8.4 | 142 | 1209 | 34 | ||||
| SZW8 | 8 | 9.4 | 149.1 | 1563.9 | 40.5 | ||||
| SZW10 | 10 | 8.35 | 152.7 | 2149.3 | 24 | ||||
| SZW12 | 12 | 12.8 | 148.7 | 2399.7 | 37 | ||||
| SZW15 | 15 | 15.2 | 149.8 | 2568.4 | 24.7 | ||||
| SZW20 | 20 | 15.5 | 147.4 | 4266.9 | 26 | ||||
| Note: Parameter is for reference only, if any changes should follow the factory technical data. | |||||||||
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