Biomass Bedding Production System for Agriculture in Kenya

RICHI MACHINERY

How This Project Started

The customer operates an agricultural-supply business in Kiambu County and was already selling feed, animal-health products and farm consumables to dairy and poultry clients. That customer base made bedding a logical adjacent product: many zero-grazing and semi-zero-grazing farms need a clean, absorbent material for cubicles, calf pens and housing areas, while poultry and horse customers also value lower dust and easier storage.

Kenya’s current livestock base supports that niche. The 2025 National Agriculture Production Report places the national dairy-cattle population at about 5.3 million head in 2024, and Kiambu was among the country’s leading milk-producing counties, with about 368.7 million kg of milk reported for the year. Kenya also recorded more than 69 million chickens in 2024, giving the client several livestock sectors to approach without claiming that all of them use pellet bedding.

The customer chose to start at 1 T/H because the local market still requires demonstrations and repeat purchasing behavior. A 2,400 T/A line can supply medium dairy farms, poultry breeders, stables and distributors while keeping raw-material contracts, inventory and working capital manageable.

The site already had a suitable single-story steel-frame building. The engineering work therefore focused on material quality, electrical capacity, dust control, cooling, bagging and reliable operation rather than expensive new civil construction.

The project was developed as a commercial bedding line rather than a fuel-pellet line with a different label. Product handling, dust level, absorbency, cleanliness and livestock suitability are treated as the main release criteria.

RICHI MACHINERY

Why Bedding Pellets Instead of Fuel Pellets?

Fuel pellets and bedding pellets can use similar ring-die equipment, but the buyer evaluates them differently. A fuel buyer focuses on useful energy, ash and combustion behavior; a bedding buyer focuses first on absorbency, cleanliness, dust, friability, animal contact and how the material behaves after wetting.

The project therefore favors clean wood fiber and controlled agricultural residues rather than maximizing the cheapest available biomass. Painted wood, glued boards, treated timber, moldy residues and heavily soil-contaminated stalks are excluded even if they could technically pass through the pellet mill.

The normal finished product is 6–8 mm diameter and roughly 10–25 mm long, with moisture around 8–12%. The exact pellet hardness is adjusted during commissioning so the product survives packing and delivery but still breaks down into an absorbent bed after contact with moisture.

Used bedding is managed according to the farm’s manure system. It may enter composting or manure-handling routes; it is not automatically promoted as a clean fuel after animal use because manure contamination changes ash, emissions and handling requirements.

RICHI MACHINERY

Raw Materials: What’s Actually Available in Kiambu

The first-stage recipe is centered on residues that can be sourced consistently within the central Kenya supply corridor. Clean sawdust and wood-processing residues provide the largest share because they offer good absorbency and lower mineral contamination than many field residues. Maize stalks and limited rice husk broaden supply without dominating the bedding grade.

At roughly 15–16% weighted receiving moisture, 2,650 tons of feedstock contains about 2,230–2,250 tons of dry matter. Finished bedding at 2,400 T/A and around 10% moisture contains about 2,160 tons of dry matter, leaving a practical allowance for screening loss, mineral contamination and unrecoverable fines while removing roughly 150–200 tons of water during air conditioning, pelletizing and cooling.

• Fresh wet sawmill residue is accepted only after supplier drying or covered air-drying; the project is not designed around 30–40% moisture feed.
• MDF, particleboard, plywood offcuts with adhesive, painted timber and preservative-treated wood are excluded.
• Maize stalks are purchased dry and relatively soil-free; visibly dirty loads are rejected.
• Rice husk remains a limited fraction because silica and fine mineral contamination can increase dust and equipment wear.
• Bark is used only when clean and dry enough for the bedding grade; it is not treated as a bulk filler.

Coffee-processing residues may be available in central Kenya, but the customer does not include them in the standard bedding formula until odor, dust, absorbency and animal-contact suitability have been tested. Availability alone is not enough to justify adding a material to livestock bedding.

RICHI MACHINERY

The Building and Layout (4,000m² Site)

The customer leases a 4,000 m² property, but the active bedding operation uses approximately 2,200 m². The remaining land is kept as a circulation, drainage and future-expansion buffer rather than being filled with oversized raw-material stock.

The 8 m production-building height is sufficient for a compact vertical arrangement with the hammer mill, day bin, pellet mill, counterflow cooler and screener. The line does not need tall silos or a separate tower structure.

Raw material moves from the receiving side through preparation and pelletizing toward the finished-goods side. The biomass pellet mill, cooler, screener and bagging station are grouped close to finished-product storage so bags do not cross the raw-material route.

The property is large enough for future expansion, but the first-stage business does not pay to roof or pave areas it does not use. This keeps civil spending proportionate to a 2,400 T/A Kenyan bedding project.

RICHI MACHINERY

Equipment Configuration

The final configuration uses one correctly sized biomass pellet mill. At this output, one MZLH420 provides the required project duty with less electrical load and fewer dies, bearings and feeders than two parallel small machines.

The fixed RICHI equipment package is USD 89,000. The completed USD 148,000 project total also covers the 415 V three-phase electrical upgrade, minor building work, fire protection, local installation, commissioning, handling equipment and startup spares.

The line does not include a thermal dryer. That decision is viable only because purchasing specifications keep the normal incoming feedstock below roughly 18–20% moisture and the customer has covered space for short air-drying of moderately wet material.

If future sourcing shifts toward wet green wood or fresh agricultural residue, a mechanical dryer would need to be added as a separate expansion. The existing line should not be pushed to compensate for water that procurement could have avoided.

RICHI MACHINERY

The Process Flow

The process is intentionally simple, but it removes the manual shortcuts that can create dust, inconsistent cooling or unnecessary labor in a commercial bedding product.

Step 1: Raw Material Receiving and Pre-Sorting

Each load is checked for origin, moisture, visible mold and contamination. Painted or treated wood, plastic, wire, stones and soil-heavy field residue are removed or the whole load is rejected. Material that is moderately wet is moved to a covered ventilated area rather than spread unprotected in the yard.

Step 2: Crushing

Clean wood trim, offcuts and bundled maize stalks pass through the 22 kW crusher. Sawdust and rice husk bypass this stage. Coarse output is reduced enough for stable hammer-mill feeding without using energy to make unnecessarily small chips.

Step 3: Hammer Milling

Prepared material enters the 45 kW hammer mill. Screen selection is confirmed during commissioning from the actual blend. Bedding feed does not need an ultra-fine powder, but long splinters and coarse stalk pieces must still be reduced so the pellet mill feeds consistently.

Step 4: Material Storage (Before Pelletizing)

Ground material moves into a small day bin sized for process smoothing rather than several hours of production. The bin gives the pellet mill a steady feed and allows operators to blend sawdust, wood fiber and crop residues by batch.

Step 5: Pelletizing

Prepared material enters the MZLH420 ring-die pellet mill. The commercial bedding product uses a 6–8 mm diameter range, with tooling selected from the customer’s target. Feed moisture, die compression and roller gap are commissioned for the actual wood/agricultural-residue blend rather than fixed at one universal ratio.

No binder is automatically required for the standard formula, but the reason is not simply that every raw material contains enough lignin. Pellet formation depends on moisture, particle structure, die geometry, temperature and the proportion of wood fiber in the blend.

Step 6: Cooling and Drying

Hot pellets discharge into a compact counterflow cooler. The cooler brings the product close to ambient temperature before screening and storage, avoiding the uneven three-hour bin-cooling method and eliminating manual raking or spreading on the floor.

Cooling removes some residual moisture, but it is not used to correct excessively wet feedstock. Finished moisture is normally controlled around 8–12% so the product remains stable in sealed or lined bags.

Step 7: Packaging

Cooled pellets pass through a screener and clean fines return to the next production batch. A short conveyor feeds the semi-automatic bagging scale, so workers do not shovel pellets from a cooling bin.

The standard commercial packs are 25 kg and 50 kg. Bags are weighed, closed, coded and moved by pallet jack or forklift into the finished-goods area. Larger customers can use FIBC after the customer develops sufficient volume.

RICHI MACHINERY

Utility Requirements 

The electrical design uses Kenya’s standard 415 V, 50 Hz, three-phase industrial supply. Plant motors, protection and the site service are specified for that system.

The project normally runs one 8-hour production shift for approximately 300 days per year. The crusher operates intermittently because sawdust and rice husk bypass coarse preparation, while the pellet mill and cooler follow the full production schedule.

A workforce of about 7–9 people is realistic, covering receiving, preparation, pelletizing, packing, warehouse/vehicle handling, maintenance/QC and management/sales. This remains a small commercial operation without relying on two people to handle every process simultaneously.

A backup generator can support controls, lighting and safe shutdown, but a full-load MZLH420 line requires a much larger generating capacity than a small 50 kVA set. Full production during outages should be evaluated separately against diesel cost.

RICHI MACHINERY

Environmental and Workplace Considerations

Environmental approval is handled under Kenya’s Environmental Management and Co-ordination Act framework and the current NEMA EIA/EA process. NEMA states that projects likely to have environmental impacts must be assessed and licensed where required; there is no blanket rule that a biomass project below 5,000 T/A is automatically exempt.

The project also needs to consider the Environmental Management and Co-ordination Air Quality Regulations, 2024 and Waste Management Regulations, 2024, while noise remains regulated under Kenya’s Noise and Excessive Vibration Pollution Control Regulations, 2009 as enforced by county governments.

The project does not publish invented workplace-dust or property-line test results. Exposure and environmental measurements must be taken with the applicable Kenyan method and compared with the limits relevant to the site, worker exposure and receiving environment.

Because the feedstock becomes an animal-contact product, material cleanliness is treated as both an environmental and a product-safety issue. Supplier traceability and rejection records are kept for all wood and agricultural residues.

RICHI MACHINERY

Problems During Startup

Startup work focused on the interfaces most likely to affect a small bedding line: dust extraction, moisture consistency, die response, cooling and bagging. The following are typical commissioning points addressed for the project rather than unverified failure stories.

The first production campaigns use clean sawdust/wood-rich formulas before increasing the agricultural-residue share. That lets operators learn the MZLH420 response before introducing higher-ash or more variable material.

The customer keeps critical spares for the die, rollers, hammer-mill screens, bearings and belts. Planned spare inventory matters more than installing a second pellet mill that the first-stage sales volume does not require.

Noise-sensitive work such as crushing and hammer milling is scheduled during normal daytime production. This simplifies community-noise control without splitting the plant into inefficient staggered shifts.

RICHI MACHINERY

Market Outlook for Bedding Pellets in Kenya

Kenya has a large livestock base that can support a bedding niche, but market potential should be tied to real farm systems rather than a national tonnage guess. Official 2024 data place dairy cattle at about 5.3 million head, and Kiambu alone produced about 368.7 million kg of milk, confirming that intensive dairy activity is concentrated near the project.

Chicken numbers also exceeded 69 million nationally in 2024. Not every poultry farm uses pellet bedding, but breeder, broiler and specialty units that value cleaner handling and lower dust can be commercial targets alongside dairy farms, stables and selected pig operations.

The customer competes mainly against loose sawdust, straw and other locally available bedding. Pellets are not automatically cheaper by weight; their value comes from storage density, handling, consistent moisture, absorbency and predictable delivery.

The project does not rely on an unverified imported-pellet price, a claim that Kenya has only five or six competitors, or guaranteed savings. New customers are encouraged to compare bedding consumption per animal, labor, storage space and manure handling over a trial period.

RICHI MACHINERY

Why This Type of Project Works in Kenya

The project fits Kenya because it is small enough to match a regional customer base while still using commercial equipment and controlled quality. The 1 T/H scale does not require a large greenfield site, tall process tower or heavy automation.

Kiambu is especially suitable because dairy production is intensive and the county sits close to Nairobi, Thika and Limuru. That gives the client access to both livestock customers and wood-processing supply chains without a long national distribution route.

The business also benefits from using residues that already have local value. The customer is not assuming agricultural waste is free; sawdust, stalks and husks may also be used by mushroom growers, briquette makers, farms or other biomass users. Procurement contracts therefore need realistic prices and quality clauses.

Regulatory planning is manageable when it is handled before installation. NEMA’s current system requires proponents to determine the applicable EIA pathway and secure approvals before implementing projects that fall within the regulated categories; air, waste and noise obligations continue during operation.

Most importantly, the product has a specific end use. A buyer does not purchase these pellets because they are ‘green biomass’; the buyer purchases them if they keep animals drier, reduce handling problems and fit the farm’s manure-management routine.

RICHI MACHINERY

Thinking About a Small Bedding Pellet Line?

The first lesson from this biomass pellet project is to control moisture through procurement before adding a dryer. For a 1 T/H startup, buying mostly 10–18% moisture sawdust, shavings and dry stalks can be far cheaper than building a dryer around wet green biomass.

The second lesson is that one correctly sized MZLH420 is enough. Redundancy has value, but two complete small pelletizing trains increase maintenance and electrical complexity. A critical-spares package and planned maintenance are a better first-stage solution for this sales volume.

The third lesson is not to confuse low automation with manual handling everywhere. Manual receiving and bag placement can be economical, but mechanical cooling and a short conveyor into the bagger remove dirty, repetitive shoveling without turning the factory into a high-cost automated plant.

The fourth lesson is to test bedding performance, not just pellet hardness. Absorbency, dust, breakdown after wetting, animal contact and manure-handling behavior are more important than applying a fuel-pellet specification to the product.

The fifth lesson is to keep sourcing local. A cheap residue hauled long distances can cost more than a slightly more expensive material collected near the plant. Transport radius should be part of every raw-material comparison.

RICHI MACHINERY

Considering a Bedding Pellet Business?

A bedding project works best when the entrepreneur already understands local livestock customers. The plant is not just an equipment business; the producer must demonstrate bedding use, pack sizes, storage and farm economics.

• Confirm the monthly dry-ton supply of clean sawdust, wood fiber and crop residues.
• Measure moisture by season and reject contaminated or moldy material.
• Choose bedding diameter and friability from animal type and customer preference.
• Check 415 V three-phase power and transformer/service capacity before ordering equipment.
• Keep product storage dry and short; bedding pellets can absorb ambient moisture in poor packaging.
• Plan farm trials before committing to a large second-stage expansion.

If sales later justify expansion, the customer can add a second biomass pellet making machine module or extend operating hours, but the decision should follow secured raw material and repeat customer demand rather than a preset phase-two capacity.

A mechanical dryer should be considered only if the future supply mix shifts toward significantly wetter wood or fresh residues. Dryer selection would then be based on tonnes of water evaporated, not only on the nominal pellet capacity.

RICHI MACHINERY

Want to Talk Details?

For a bedding-pellet proposal, the most useful starting information is the raw-material form, moisture by season, monthly volume, distance from the site, animal types served, required pack sizes, building dimensions and available industrial power.

RICHI can then size the crusher, hammer mill, MZLH pellet mill, cooler, screening and packing system around the real bedding route instead of using a generic biomass-fuel line.

Equipment can be shipped from Qingdao to the Port of Mombasa and then moved by road to Kiambu County. Kenya Ports Authority reported that Mombasa handled about 45.45 million tonnes of cargo and 2.11 million TEU in 2025, giving the project a well-established gateway for containerized machinery.

RICHI scope covers process engineering, equipment manufacture, factory inspection, export packing, installation guidance, commissioning and operator training. A leased-building project of this scale can typically be implemented in about 4–6 months when electrical upgrading and building preparation proceed in parallel with equipment manufacture.

For a 1 T/H commercial bedding line, the priority is not adding every possible machine. The priority is a clean feedstock supply, stable pelletizing, mechanical cooling, controlled dust, reliable bagging and a local customer base that values the finished bedding.