Wood Chip Boiler
Biomass steam for the line
A wood-chip (biomass) boiler that raises steam and hot water for steaming, drying and coating — a biomass alternative or complement to the shell burner.
The TTQ Wood Chip Boiler raises steam and hot water from wood chips or biomass to power the steaming, drying and coating stages. It is a biomass energy option where shell alone is insufficient or where steam is preferred, keeping the plant on renewable fuel and off fossil energy. Capacity is matched to the line’s thermal demand.
Technical specifications
| Function | Raises steam / hot water |
|---|---|
| Fuel | Wood chip / biomass |
| Output | Steam + hot water |
| Serves | Steamer, dryer, coater |
| Control | Automatic feed + pressure |
| Build | Steel pressure boiler |
Figures are typical and configurable — we confirm exact specifications against your capacity and grade targets.
Sizing steam around the stages that use it
Steam capacity
Raises steam and hot water sized to the line’s thermal demand.
Biomass energy
Runs on renewable wood chip, keeping the plant off fossil fuel.
Automatic feed
Fuel feed and pressure are regulated automatically.
Process heat
Supplies steaming, drying and coating from one source.
Model & capacity comparison
Every model TTQ builds for this stage, side by side. Pick by throughput and footprint — each links straight to a quote.
Steam boilers — models
Steam generation for the steaming stage, sized by steam output. Shell-fired options pair with a cashew-shell burner for near zero fuel cost.
| Model | Capacity | Power | Footprint (L×W×H) | Crew | Ref | Quote |
|---|---|---|---|---|---|---|
| 0.3 T | 300 kg steam/h | 4 HP (3 kW), 3-phase 380V | 2.0 × 2.0 × 3.0 m | 1 | TTQ-BLR-01 | Quote → |
| 0.5 T | 500 kg steam/h | 8 HP (6 kW), 3-phase 380V | 4.0 × 2.0 × 2.5 m | 1 | TTQ-BLR-02 | Quote → |
| 0.5 T (gas) | 500 kg steam/h | 3 HP (2.2 kW), 3-phase 380V | 4.0 × 2.0 × 2.5 m | 1 | TTQ-BLR-03 | Quote → |
| 0.75 T | 750 kg steam/h | 8 HP (6 kW), 3-phase 380V | 4.0 × 2.0 × 2.5 m | 1 | TTQ-BLR-04 | Quote → |
| 1 T | 1,000 kg steam/h | 10 HP (7.5 kW), 3-phase 380V | 4.5 × 2.5 × 3.0 m | 1 | TTQ-BLR-05 | Quote → |
| 1.5 T | 1,500 kg steam/h | 15 HP (11.25 kW), 3-phase 380V | 5.5 × 2.5 × 3.0 m | 1 | TTQ-BLR-06 | Quote → |
| 2 T | 2,000 kg steam/h | 15 HP (11.25 kW), 3-phase 380V | 6.0 × 3.0 × 3.0 m | 1 | TTQ-BLR-07 | Quote → |
| 3 T | 3,000 kg steam/h | — | — | — | TTQ-BLR-08 | Quote → |
| 4 T | 4,000 kg steam/h | — | — | — | TTQ-BLR-09 | Quote → |
Specifications are indicative and configurable; TTQ confirms exact figures against your capacity, grade targets and factory layout. Model codes shown are TTQ quotation references.
The same TTQ boiler range fires wood chips, cashew shell or pellets — 300 to 4,000 kg of steam per hour. The model tables below are shared with the cashew shell burner; what differs is fuel handling and burn behaviour, not the boiler itself.
A wood chip boiler raises process steam from forestry residue or plantation offcuts. On a cashew site it is the sensible answer when shell volume alone will not cover steam demand, when shell is sold rather than burned, or when a second fuel path is needed so production does not stop if one supply falters.
How it works
Fuel store and feed
chips are held in a bunker and moved to the furnace by auger or walking floor. Chip size consistency matters more than people expect; oversize pieces bridge in the feed.
Furnace and grate
a moving or step grate keeps fuel advancing through the burn zone so combustion is continuous rather than batchwise.
Staged combustion air
primary air under the grate, secondary above it. Correct staging is what gives complete burn instead of smoke.
Heat exchanger
fire-tube for smaller plants, water-tube where output and pressure requirements are higher.
Ash handling
automatic removal on anything intended to run continuously; wood chip produces more ash than pellets do.
Wood chip against the alternatives
| Wood chip | Cashew shell | Pellets | |
|---|---|---|---|
| Fuel cost | Low, higher than shell | Effectively zero on site | Purchased, highest of the three |
| Moisture variability | High — 20–50% as delivered | Moderate | Low and consistent |
| Fuel consistency | Variable size and species | Fairly uniform | Uniform by design |
| Ash | Higher | Moderate, with CNSL residue | Low |
| Storage volume needed | Large — chips are bulky | Moderate | Smallest per unit of energy |
| Handling complexity | Moderate; bridging is the usual fault | Needs CNSL-tolerant design | Simplest |
Chip moisture is the variable that catches operators out. A 50% moisture chip carries far less usable energy than a 20% one, so a boiler sized on dry-chip assumptions will underperform on wet fuel.
Sizing and specifying
Total simultaneous steam demand
steaming, drying and humidification together, with headroom for the charge-time peak.
Specify the fuel you will actually get
chip size range and expected moisture. A boiler tuned for dry chip will struggle on wet, and the supplier needs to know which you have.
Storage sized to delivery frequency
chips are bulky, so bunker volume often decides the site layout more than the boiler does.
Pressure vessel certification
mandatory, and worth verifying rather than assuming.
Consider dual fuel
many cashew plants run shell as primary with chip as backup, which covers the off-season dip in shell supply.
Operation and maintenance
Keep fuel dry
covered storage protects calorific value. Rain on a chip pile is a direct efficiency loss.
Watch for bridging
oversize or stringy material arches over the feed auger and starves the furnace. It usually shows as a slow steam pressure drop, not an alarm.
Clean heat exchange surfaces
ash and soot deposits insulate the tubes and quietly cut efficiency.
Remove ash on schedule
wood chip generates more of it than pellets, and accumulation restricts combustion air.
Monitor flue temperature
a rising stack temperature is usually the first sign that the exchanger needs cleaning.
If you shell your own nuts, price a shell-fired boiler first — the fuel is already on your site. See cashew shell burner, and pellet boiler price for the third option. TTQ quotes boilers per configuration and destination rather than publishing a price list.
A boiler in service
The process, drawn
One boiler range, three fuels
The same TTQ boiler fires cashew shell, wood chips or pellets. Which one you burn is a supply question, not an equipment question.
Shell combustion efficiency runs 90–95%. Multi-fuel flexibility costs roughly 20–30% more than a single-fuel boiler, which is worth it only if your shell supply is genuinely uncertain.
The shell energy loop
The cleanest economics on the site: the waste stream from stage 03 comes back as the heat for stages 02 and 04.
The same TTQ boiler range fires cashew shell, wood chips or pellets. Note the dryer is heated by electrical coils or by boiler steam through heat-transfer coils — the shell burner fires the boiler and the roasting machine, not the dryer directly.
Where it fits in the process
A plant utility that supplies steam and hot water to the process — a biomass complement to the shell burner.
Wood Chip Boiler — FAQ
What fuel does the boiler use?
What does it power?
Shell burner or wood-chip boiler?
Pairs well with
Cashew Shell Burner
Turn shell waste into heat
Open →
Cashew Steaming Machine
Soften shells, protect kernels
Open →
Cashew Dryer Machine (Borma)
Controlled borma drying
Open →
Pellet / Biomass Boiler Price for Cashew Plants
Biomass and pellet boiler prices for cashew plants vary widely with steam capacity — priced per configuration, and paid back through low-cost renewable heat rather than through the purchase price.
Open →Get a quote on the Wood Chip Boiler
Tell us your target capacity and grades. We'll come back with the right configuration, a layout and a costed proposal.