CO-NELEMixing & Granulation
Factory-direct forced action batch mixers engineered for tropical road maintenance, highway expansion, and high-shear bitumen coating.
Heavy-duty 1200kg capacity per batch featuring dual-shaft forced mixing dynamics, designed for KeNHA Class A road projects.
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1500kg capacity plant module delivering under 35-second cycle times for major highway corridors including Nairobi Expressway extensions.
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Counter-current mixing technology optimized for roadside kerbs, drainage channels, and heavy-duty concrete road tile production.
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High-speed pelletizing and homogenizing machine for polymer-modified bitumen (PMB) additives and micro-fillers.
View Technical SpecsKenya stands as the economic, commercial, and logistical hub of East Africa. Under Kenya Vision 2030 and the national sector framework managed by the Kenya National Highways Authority (KeNHA), Kenya Urban Roads Authority (KURA), and Kenya Rural Roads Authority (KeRRA), the country is undergoing an unprecedented expansion of its paved road network. Strategic arteries such as the Lamu Port-South Sudan-Ethiopia Transport (LAPSSET) Corridor, the Northern Corridor (Mombasa-Nairobi-Malaba), and urban bypass networks demand asphalt paving materials with strict thermal stability, rutting resistance, and long-term structural integrity.
However, the East African climate introduces rigorous mechanical demands on asphalt mixing plants. Operating conditions range from extreme equatorial ambient temperatures and high ultraviolet radiation in coastal zones like Mombasa to sub-tropical high-altitude conditions in the Kenyan Highlands (Nairobi, Nakuru, Eldoret above 1,800 meters elevation). Furthermore, local aggregate sources—such as crushed basalt, phonolite, and quartz-rich volcanic rocks from the Great Rift Valley—exhibit high abrasiveness and erratic moisture retention.
“Achieving binder coating thickness above 8 microns without thermal degradation requires forced twin shaft kinematic shear, turning aggregate friction into immediate mechanical homogenisation.”
Why twin shaft compulsory batch mixing outperforms continuous drum mixers and single shaft systems for complex hot-mix asphalt (HMA) recipes.
Equipped with heavy-duty oil-immersed helical timing gears, the twin shafts counter-rotate in perfect synchronization. The overlapping paddle arms create a turbulent 3D fluidization zone inside the mixing pan, eliminating dead spots and stripping binder off overheated metal walls.
Pressurized bitumen spray bars inject liquid asphalt binder directly into the center of the fluidized aggregate mass. This ensures immediate micro-encapsulation of fine dust particles and fillers before binder cooling occurs, maximizing Marshall stability test values.
Multi-layer labyrinth seals coupled with continuous automatic grease lubrication purge hot asphalt fines away from drive bearings. This eliminates shaft seizure and extends bearing operational life beyond 10,000 production hours under harsh African field conditions.
| Performance Parameter | CO-NELE Twin Shaft Batch Mixer | Continuous Drum Mixer | Single Shaft Batch Mixer |
|---|---|---|---|
| Bitumen Coating Uniformity | Micro-Homogeneous (>99.8%) | Variable (Depends on drum speed) | Moderate (Risk of aggregate segregation) |
| SMA & Polymer Mod. Asphalt (PMA) | Excellent (High shear handles high viscosity) | Poor (Requires specialized add-ons) | Limited (High wear on arms) |
| RAP (Recycled Asphalt) Dosing | Up to 30% direct injection | Limited (Risk of binder burning) | Up to 15% maximum |
| Mixing Cycle Time | 30 – 45 seconds | Continuous (No batch control) | 60 – 90 seconds |
| KeNHA Spec Compliance | Full compliance (Strict batch recordable) | Requires frequent laboratory calibration | Marginal for Superpave standards |
Built with certified structural steel, Siemens PLC automation, and custom thermal retention layers designed for East African transport operators.
Every CO-NELE Twin Shaft Asphalt Mixer exported to Kenya features an integrated control cabinet housing Siemens S7-1500 PLC control systems with multi-language HMI interfaces (English/Swahili ready). The system performs dynamic batch weighing compensation, controlling bitumen pumps, aggregate skip hoists, and filler screw conveyors with accuracy within ±0.5%.
Volcanic stone aggregates common in Nakuru, Naivasha, and Machakos quarry operations cause rapid abrasive wear on standard mild steel liners. CO-NELE utilizes interchangeable bolt-on High-Chromium alloy liners (Cr26) with a Brinell hardness exceeding 600 HBW (62 HRC).
From heavy trunk highways to municipal urban paving, CO-NELE twin shaft mixers adapt to specialized asphalt concrete mix designs.
Project Type: A104 Mombasa-Nairobi-Malaba Highway, A2 Nairobi-Thika Superhighway upgrades.
Mix Requirement: Heavy-duty Dense Bitumen Macadam (DBM) and Asphalt Concrete Wearing Course (AC 20/14) with polymer modification to endure axle loads up to 48 tonnes. The AMS1500 twin shaft mixer guarantees 100% aggregate binder coating at high throughputs.
Project Type: Jomo Kenyatta International Airport (JKIA) taxiways, Nairobi Commercial District arterial upgrades.
Mix Requirement: Stone Mastic Asphalt (SMA) with cellulose fiber dosing. CO-NELE twin shaft mixers provide rapid, zero-clumping distribution of fibers and mineral fillers within a 40-second total batch time.
Project Type: Merchant asphalt production in Athi River, Kitengela, Eldoret, and Kisumu.
Mix Requirement: Flexible multi-recipe batching. Quick transition between base course mixtures and fine surface asphalt mixes without cross-contamination, enabled by complete hydraulic discharge gate opening.
In Kenya, fuel oil and diesel expenses account for over 45% of an asphalt plant’s operational budget. CO-NELE engineers have optimized the thermal design of our twin shaft mixers to prevent heat dissipation during the batching cycle.
High-density ceramic wool insulation jackets surrounding the pan body maintain asphalt mix temperature at 160°C–180°C, cutting heating burner load.
IE3 premium efficiency motors coupled with planetary gear reducers achieve 94% mechanical drive efficiency, reducing total kWh consumption per batch.
Hi-Cr liner plates certified for 120,000+ batch cycles reduce factory maintenance downtime and imported spare part frequency.
Based on a 150 Ton/Hour Batch Plant operating in Kenya over 3 years:
Direct operational cost reduction in fuel, electricity, and spare parts.
Calculate Your SavingsFull compliance with Kenyan regulatory standards, sea-freight packaging, and on-site engineering installation guidance.
Complete compliance with Kenya Bureau of Standards Pre-Export Verification of Conformity (PVoC) to guarantee hassle-free Certificate of Conformity (CoC) issuing.
Containerized and flat-rack ocean freight packing from Qingdao Port directly to Kilindini Harbour, Mombasa, with optional SGR transit to Nairobi Inland Container Depot (ICD).
Dispatched commissioning engineers for foundation mechanical setup, wiring integration, dry-testing, and local operator training in Nairobi, Mombasa, or Kisumu.
Standardized interchangeable wear components (mixing arms, tips, liner plates, gate seals) maintained for fast DHL/air-freight dispatch to East Africa.
Adapting to modern decarbonization directives, Warm Mix Asphalt (WMA), and intelligent IoT plant integration.
CO-NELE twin shaft mixers are fully pre-fitted with chemical additive dosing ports and water-foaming bitumen injection manifolds. WMA technology lowers mixing temperatures by 20°C–40°C, drastically reducing burner emissions and fuel burn rate on Kenyan jobsites.
As Kenya transitions toward sustainable road rehabilitation, our twin shaft mixers support up to 30% cold or pre-heated Recycled Asphalt Pavement (RAP) addition directly into the mixing pan without binder degradation or shaft clogging.
Remote diagnostics interface allowing real-time monitoring of gear reducer vibration, motor current load, bearing temperatures, and mixing cycle times from any mobile browser or headquarters office in Kenya or abroad.
Detailed solutions to common engineering, operational, and procurement queries regarding asphalt batch mixers in East Africa.
Explore our full selection of intensive, planetary, dry mortar, and UHPC mixers manufactured in our Qingdao industrial facility.
High-speed inclined intensive mixer designed for complex compound formulas, mineral processing, and refractories.
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Specialized batching plant configuration engineered for precast concrete pipes, culverts, and heavy drainage infrastructure.
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Heavy-duty 1.5-ton compulsory twin shaft asphalt batch mixer engineered for continuous highway paving contracts.
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Precision R&D laboratory mixer for sampling dry-cast refractories, concrete additives, and high-performance asphalt formulas.
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Compact lab testing unit reproducing industrial-scale shear dynamics for material scientific analysis and recipe testing.
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Ultra-High Performance Concrete (UHPC) planetary mixer for bridge joint grouting, precast panels, and structural overlays.
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High-speed fly-cutter technology ensuring rapid dispersion of synthetic fibers and micro-silica in dense mixtures.
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Counter-current planetary motion mixer optimized for abrasive, high-density refractory castable production lines.
View Product DetailsConsult directly with our mixing process engineers. Receive customized plant layout drawings, technical specifications, and factory-direct pricing for your road construction project.