Khaya wood Charcoal

Specifications Details
Size Width 100 – 150 mm, Length 150 – 200 mm
Shape Split lump and natural stick
Fixed Carbon > 60%
Calorific Value > 6000 kcal/kg
Ash Content < 5%
Moisture < 5%
Burning Time ~ 2.5 hours

Packaging

• PP/BOPP Bags: 10 – 25 kg 
• Paper Bags / PP Bags: 3 – 5 kg 
• Carton Boxes: 3 – 10 kg 

OEM Service: Support logo printing and packaging design according to customer requirements.

Supply Information

• Supply Capacity: 100 MT/month 
• Loading Capacity: 20 MT/40’HC (standard bag loading) 
• MOQ: 1 × 40’HC container 
• Payment Terms: TT (30% deposit) or L/C at sight 
• Delivery Time: Approximately 15 days 
• Loading Port: Ho Chi Minh Port, Vietnam 

Preferred Markets: Middle East and other markets that prioritize natural wood charcoal with competitive pricing.

Khaya wood used for charcoal carbonization in Vietnam is mainly collected from activities such as tree pruning, urban landscape renovation, replacement of old urban trees, land redevelopment projects, and partially from scattered plantations, private gardens, roadside planting areas, and commercial plantations. In Vietnam, Khaya trees are commonly known as African Mahogany (Khaya spp. or Khaya senegalensis), belonging to the Meliaceae family. Originally native to Africa, this species was introduced into Vietnam decades ago and has since been widely planted for urban landscaping and timber purposes.
In Vietnam, Khaya trees are widely cultivated across many provinces, especially in Southern Vietnam and major urban areas such as Ho Chi Minh City, Dong Nai, Binh Duong, Long An, as well as several provinces in Central and Northern Vietnam. Khaya is considered a relatively fast-growing and drought-tolerant tree species with strong adaptability to tropical climate conditions. It is commonly planted for shading, landscape development, urban greening, and timber harvesting after a long growth cycle.
Mature Khaya trees can reach approximately 20–30 meters in height, with large trunk diameters and relatively high wood biomass yield. Khaya wood belongs to the medium-to-hard wood group, featuring a relatively dense structure, wood color ranging from yellow-brown to reddish-brown, and higher density compared to many common landscape tree species. These characteristics enable the raw material to produce charcoal with a relatively solid structure, low breakage rate, and more stable burning performance after carbonization.
Unlike many premium wood species used for furniture manufacturing or advanced wood processing industries, Khaya wood materials used for charcoal production are generally sourced from trunks, large branches, or wood sections that are no longer suitable for commercial timber processing. This approach helps utilize natural biomass generated from urban tree management and landscape renovation activities while creating additional value from harvested wood resources.
After collection, Khaya wood materials are freshly cut and processed into split lump or stick forms with an average length of approximately 500 mm and diameters ranging from 40 – 250 mm. Before entering the carbonization kilns, dry, decayed, hollow, or unsuitable wood sections are removed to ensure more stable finished charcoal quality during the carbonization process.

Packaging

• PP/BOPP Bags: 10 – 25 kg 
• Paper Bags / PP Bags: 3 – 5 kg 
• Carton Boxes: 3 – 10 kg 

OEM Service: Support logo printing and packaging design according to customer requirements.

Supply Information

• Supply Capacity: 100 MT/month 
• Loading Capacity: 20 MT/40’HC (standard bag loading) 
• MOQ: 1 × 40’HC container 
• Payment Terms: TT (30% deposit) or L/C at sight 
• Delivery Time: Approximately 15 days 
• Loading Port: Ho Chi Minh Port, Vietnam 

Preferred Markets: Middle East and other markets that prioritize natural wood charcoal with competitive pricing.

Overview
Natural wood charcoal is produced from suitable wood species (typically wood materials with limited value for advanced wood processing applications) such as Mangrove, Longan, Eucalyptus, Coffee Wood, Khaya, and various orchard wood species through a carbonization process under oxygen-limited conditions.
During this process, most moisture, natural oils, wood tar, and volatile organic compounds are removed, while the carbon content is retained to form natural charcoal.
The production process consists of multiple stages, including raw material preparation, carbonization, sorting, packaging, and quality inspection before shipment, ensuring that the final products meet technical requirements, commercial specifications, and international transportation standards.

Step 1. Raw Material Sourcing
Raw materials are selected from wood species suitable for charcoal production, including Mangrove, Longan, Eucalyptus, Coffee Wood, Khaya, and various orchard wood species.
Depending on the product category, the wood may originate from plantation forests, fruit orchards, or other appropriately managed raw material regions.

Step 2. Wood Preparation
The wood is cut into logs or billets suitable for the carbonization process. Typical dimensions are approximately 500 mm in length and 50–200 mm in diameter. Larger logs are further cut or split to achieve the required size range.
Standardizing the raw material dimensions helps improve carbonization efficiency and facilitates subsequent grading and packaging operations.
For charcoal production, freshly harvested wood is generally preferred, as it often produces stronger and more stable charcoal after carbonization.

Step 3. Kiln Loading
The prepared wood is loaded into the carbonization kilns manually or semi-manually.
Proper and uniform stacking ensures efficient heat and airflow circulation throughout the kiln during the production cycle while minimizing shifting, collapsing, or breakage of the material.

Step 4. Carbonization
This is the most important stage of the entire production process.
The kilns are designed with dedicated firing chambers that gradually increase the internal temperature through two main stages:
Stage 1 – Moisture Removal (150–200°C)
Free water and internal moisture are gradually removed from the wood. This stage essentially functions as a thermal drying process.
Stage 2 – Carbonization (350–400°C)
The temperature continues to rise, removing the remaining moisture, natural oils, wood tar, and volatile organic compounds. Under oxygen-limited conditions, the wood structure is gradually transformed into charcoal while the carbon content is retained to form natural wood charcoal.
Depending on the wood species, kiln design, kiln size, and environmental conditions, the carbonization process typically takes between 4 and 6 weeks.
This is the most important stage of the entire production process.
The kilns are designed with dedicated firing chambers that gradually increase the internal temperature through two main stages:
The average charcoal recovery rate ranges from approximately 18–25%, meaning that every 100 kg of raw wood typically yields around 18–25 kg of finished charcoal.

Step 5. Natural Cooling
After carbonization is completed, all kiln openings are completely sealed, allowing the charcoal to cool naturally. This is the final stage of the carbonization process.
Natural cooling helps stabilize the charcoal structure, minimize cracking, and prevent re-ignition when exposed to oxygen. The cooling period typically lasts between 1 and 2 weeks, depending on kiln size and construction.

Step 6. Sorting & Grading
After unloading from the kiln, the charcoal is sorted according to size, shape, and quality.
Products that do not meet the required standards, such as partially carbonized or under-carbonized pieces, are removed or reprocessed when appropriate.

Step 7. Processing & Packaging
Depending on customer requirements, the charcoal may be cut, split, crushed, or cleaned to remove any remaining bark before packaging.
Products are packed in PP bags, BOPP bags, paper bags, cartons, or other packaging formats according to customer specifications and target market requirements.

Step 8. Quality Control
Each production batch undergoes quality inspection before shipment.
Quality verification may include combustion testing after kiln unloading and laboratory analysis when requested by customers.
Inspection criteria typically include charcoal type, size, moisture content, hardness, and packaging specifications according to internal standards or customer requirements.

Step 9. Warehouse Storage
After packaging, finished products are stored for a minimum of 7 days in dry and well-ventilated warehouse conditions to ensure fire safety and maintain stable product quality prior to shipment.

Step 10. Container Loading & Export
Products are loaded into containers according to packaging specifications, customer requirements, and international maritime transportation standards.
After final inspection, the cargo is transported to the port and exported under the agreed international trade terms.