Sawdust to Bedding Pellets Production Line in Mozambique

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Why Mozambique?

Mozambique’s livestock sector is growing. Key indicators:

Current bedding materials in Mozambique:

The opportunity: The client can produce bedding pellets for 8,000-10,000 MZN/ton ($125-155) — about 50-60% cheaper than imported pellets.

Target customers:

The client’s breakeven point is 4,800 tons/year (60% capacity). Their own sawmill guarantees 1,000 tons of sawdust annually, so they need only 3,800 additional tons from other suppliers.

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Raw Materials: Sawdust from Local Sawmills

The client’s raw material is sawdust and wood shavings from 15+ sawmills within 100km.

Sawdust characteristics (pine, eucalyptus):

Why the client doesn’t always need a dryer: Most of the client’s sawdust is air-dried (12-20% moisture) — farmers season the lumber before milling. For this sawdust, the client doesn’t need to run the dryer. For wet sawdust (from sawmills that cut green logs), the client runs the dryer.

Raw material supply:

Wait, 10,000 tons input for 8,000 tons output? Yes. The difference (2,000 tons) is:

• Water evaporated during drying (about 1,000-1,200 tons)
• Dust collected in filters (about 5-10 tons, recycled)
• Oversize rejects (about 5-10 tons, re-ground)
• The original document’s material balance shows 10,000 tons input → 7,864 tons output (plus water evaporation, dust, etc.)

Raw material quality control:

The client only accepts sawdust that is:

• Free from metal (nails, screws — the client’s equipment has magnets)
• Free from plastic and other contamination
• Not moldy (visual inspection)
• The client rejects any load with painted or treated wood

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The Site and Building

The client rents a former warehouse in an industrial area west of Maputo. The building is 2,000m², steel-framed, with a concrete floor and 8m ceiling height.

Building layout:

The building is fully enclosed. All processing equipment is indoors to contain dust.

The client’s simple layout: The site has only one entrance — at the northwest corner. Raw material comes in the east side, moves through the center for processing, and exits as finished product from the west side. No backtracking.

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Equipment Configuration

The client chose a simple, low-cost line for sawdust (the original document was for wood chips — but the client uses sawdust, which is already small, so some equipment was modified):

Equipment cost (FOB Qingdao): $68,500 USD

Why this configuration for sawdust bedding pellets:

1. No crusher needed (the original document had a crusher for wood chips). The client’s raw material is sawdust (already <10mm). The client removed the crusher from the line, saving about $12,000.

2. Electric dryer (emergency backup). Most of the client’s sawdust is already dry (12-20% moisture). The client only uses the dryer when receiving wet sawdust (30-40% moisture). The dryer uses electricity (not gas — Mozambique has limited natural gas infrastructure). The client runs the dryer about 30-40 days per year.

3. Single pellet mill with 6mm die. Bedding pellets should be 6-8mm diameter. The client uses a 6mm die (produces 6.5-7mm pellets after expansion). The compression ratio is 4:1 (lower than fuel pellets’ 5:1 or 6:1) — this produces softer pellets that are more absorbent.

4. Simple baghouse filter. The hammer mill has a baghouse filter for dust control. The client’s dust emissions (from the original document) are 19.17 mg/m³ for grinding and 15.31 mg/m³ for pelletizing — well below Mozambique’s limit (see below).

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Process Flow

Sawdust is easier than wood chips. No crushing needed. The line is simple: grind → (dry, if needed) → pelletize → cool → screen → bag.

Step 1: Raw Material Receiving

Trucks deliver sawdust in bags or loose (covered trucks). The driver unloads into the raw material storage area (east side, 500m²).

The client’s storage: The client stores sawdust in a covered area (to keep rain off). Sawdust from different sawmills is kept separate (different moisture levels). The client tests moisture with a portable meter.

Step 2: Grinding (Hammer Milling)

Sawdust is already small, but still needs grinding to <6mm particles for consistent pelletizing.

Sawdust is fed into the wood pellet hammer mill.

Hammer mill parameters (for sawdust):

Step 3: Drying (Emergency Use Only)

The client only uses the dryer for wet sawdust. For most of the year, the dryer is off.

The client’s electric dryer (30 kW heating + 7.5 kW fan) is used only when receiving sawdust with moisture >20%.

Dryer parameters (when used):

• Type: Rotary drum
• Inlet temperature: 150-180°C (electric heating)
• Residence time: 10-20 minutes
• Moisture in: 25-35%
• Moisture out: 10-15%

Why electric? Mozambique’s rural areas don’t have natural gas. The client uses electricity for the dryer. It’s more expensive than gas or biomass, but the client uses it rarely.

Step 4: Pelletizing

Bedding pellets need a lower compression ratio than fuel pellets. The pellets should be soft enough to break apart when wet, not hard and dense.

Dried (or naturally dry) sawdust is fed into the biomass pellet mill.

Pellet mill parameters (for bedding pellets):

Bedding pellet specifications (corrected for animal bedding):

Why lower temperature (70-85°C vs 80-100°C for fuel): Bedding pellets shouldn’t be too hard. Lower temperatures preserve some fiber flexibility, which improves absorbency. The pellets expand more when wet.

Step 5: Cooling

Hot pellets (70-80°C) drop into a cooling bin — ambient air cooling.

Cooling parameters:

• Type: Ambient air (the client spreads pellets on the floor or uses a bin)
• Retention time: 4-6 hours
• Outlet temperature: ambient + 5-10°C (30-40°C in Maputo)

Why no mechanical cooler? The client’s building is large (2,000m², 8m ceiling). There’s plenty of space to spread pellets on the floor. A counterflow cooler would cost $10,000-15,000 — not worth it for this scale.

Step 6: Screening

Cooled pellets pass through a vibrating screener to remove fines and oversize.

Screener parameters:

• Top deck: 10 mm (removes oversize — return to pellet mill)
• Bottom deck: 3 mm (removes fines — return to hammer mill)
• Acceptable pellets: 6-25mm length

Step 7: Bagging

Acceptable pellets are bagged manually.

Packaging process:

• Bag sizes: 25kg (retail), 50kg (commercial), 1-ton bulk bags
• The client uses a simple bagging scale (manual)
• Bags are sewn closed with a portable bag sealer

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Utilities and Consumption

Electricity breakdown (annual, 300 days, 8 hours/day = 2,400 hours):

Electricity cost per ton: 362,000 kWh ÷ 8,000 tons = 45 kWh/ton × 1.0 MZN/kWh = 45 MZN/ton ($0.70) — very efficient (no dryer for most of the year).

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How RICHI Customized This Line for Sawdust Bedding

The client had specific requirements that shaped the equipment design:

Requirement 1: Raw material is sawdust (already small, mostly dry). The client didn’t need a crusher or a dryer for most of the year.

RICHI solution: Removed the crusher from the line (saving $12,000). The dryer is kept as emergency backup. The client only runs the dryer when receiving wet sawdust (about 30-40 days/year). This saved the client significant capital and operating costs.

Requirement 2: The client needed bedding pellets (soft, absorbent, low dust), not fuel pellets. The specifications are different.

RICHI solution: Recommended:

• Die hole diameter: 6mm (produces 6.5-7mm pellets — correct size for bedding)
• Compression ratio: 4:1 (lower than fuel pellets) — produces softer pellets
• Target moisture: 10% (not <8% like fuel pellets)
• The client’s pellets are marketed as “animal bedding” (not fuel)

Requirement 3: Limited budget (less than $70,000 for equipment). The client had 7 million MZN ($108,000) in total.

RICHI solution: Recommended a simple line with no crusher, no mechanical cooler, no automated packaging. The client uses manual bagging. Total equipment cost: $68,500 FOB Qingdao — within budget.

Requirement 4: The client has 10 staff, no prior pellet experience. The client’s workers are sawmill laborers.

RICHI solution: Provided a 2-week on-site training program:

• Week 1: Basic safety, machine startup/shutdown, daily checks (screens, magnets, lubrication)
• Week 2: Adjusting the pellet mill die gap, changing dies, troubleshooting common problems

The client’s lead operator (a former mechanic at the sawmill) became proficient within 2 weeks.

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Product Specifications

The client’s bedding pellets meet South African standards for animal bedding (Mozambique has no national standard yet).

Comparison with other bedding materials in Mozambique:

The client’s product is priced between raw sawdust (cheaper but dusty and inconsistent) and imported pellets (much more expensive). The value proposition is strong — farmers get better quality than raw sawdust at a fraction of the cost of imports.

Pricing (as of July 2025):

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Market Outlook for Sawdust Bedding Pellets in Mozambique

Mozambique’s livestock sector is growing, but the bedding pellet market is in its infancy (maybe 500-1,000 tons/year currently). The client is one of the first.

Key drivers:

1. Horse industry growth. Maputo has a growing equestrian community (sport horses, polo, tourism). Horse owners need dust-free bedding (respiratory health). The client has already supplied trial batches to two stables in Maputo.

2. Dairy farm modernization. Commercial dairy farms are switching from straw to pellets (better absorbency, less labor). The client’s pellets are 30-50% cheaper than imported options.

3. Export to South Africa. South Africa imports wood pellets (for horse bedding). The client is 100km from the border. Transport cost is manageable. The client’s product would compete with South African pellets priced at ZAR 3,000–4,000 per ton ($160–215). The client’s export price (FOB border) could be ZAR 2,500–3,000 per ton ($135–160).

4. Abundant raw material. Mozambique has significant pine plantations (in Manica, Sofala provinces). Sawmill waste is plentiful.

Competition: There are no other bedding pellet producers in Mozambique (a few make fuel pellets). The client has the market to themselves.

Challenges the client is managing:

The client’s breakeven point is 4,800 tons/year (60% capacity). At full capacity (8,000 tons/year), operating margin is about 25-30%. Payback on equipment ($68,500) is about 14 months.

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Why a Sawdust Bedding Pellet Line Makes Sense in Mozambique

Mozambique has abundant sawmill waste, a growing livestock sector, and no local bedding pellet producers. Here’s why you should consider this market:

Raw material is cheap (or free). The client’s own sawmill produces 1,000 tons/year of sawdust for free. Other sawmills charge 500-800 MZN/ton ($7.70-12.30) — much less than in developed countries.

Bedding pellets are easier to make than fuel pellets. Lower durability requirements (92-94% vs 97+%), lower density, lower compression ratio. The process is simpler.

The market is underserved. Horse owners and dairy farmers currently import expensive pellets or use dusty straw. The client’s product is 50-60% cheaper than imports.

Mozambique is close to South Africa. Export potential is significant. South Africa has a mature bedding pellet market with higher prices.

If you’re considering a sawdust bedding pellet line in Mozambique (or any country with sawmills), RICHI can help. We’ve designed lines for sawdust, wood shavings, planer shavings, and other wood residues. We understand the differences between bedding and fuel pellets (softer, more absorbent, lower durability) and can recommend the right equipment.

Contact us to discuss your project. Tell us about your raw material (type, moisture, volume), target market (horses, dairy, poultry), site conditions, and budget. We’ll prepare a customized process flow, equipment list, and budget estimate — no obligation.

RICHI Machinery – Sawdust bedding pellet lines from 0.2 t/h to 90 t/h. Shipping from Qingdao to Maputo port: 20-25 days. Installation support available in Mozambique within 2 weeks.