DCW 2.2 Binder Spreader

Front-Mounted Single-Pass Operation

Mounted on the tractor’s front linkage, the DCW 2.2 spreads binder ahead of a rear-mounted soil stabilizer in a single forward pass. This eliminates the traditional two-pass workflow (spread first, return and mix), cutting project time roughly in half while reducing fuel consumption and minimizing the time loose binder is exposed to wind.

In-Cab Digital Rate Control

The integrated control system with a tractor-mounted display puts precise application rate management at the operator’s fingertips. Set the target rate in kg per square meter; the system automatically compensates for ground speed changes. This GPS-compatible digital precision is impossible with manual bag-spreading and eliminates human dosing error.

Dual Rollers — Selectable 1 m or 2 m Width

Two independent metering rollers allow the operator to select 1 m or 2 m application width without stopping or changing parts. Use full 2 m width for open road corridors, or switch to 1 m for narrow trenches, edges, patch repairs, and confined spaces. This eliminates the need for two separate machines for different application widths.

Eliminates Manual Bag Spreading

Manual bag spreading is slow, labor-intensive, physically demanding, dusty, inconsistent, and wasteful. Workers tear open 25 kg bags, scatter contents by hand, and hope for even coverage. The DCW 2.2 replaces this entire process with a single operator applying binder at precisely controlled rates from the tractor cab — faster, safer, more accurate, and with dramatically less dust exposure.

Uniform Application — Consistent Soil Strength

Soil stabilization quality depends directly on uniform binder distribution. Uneven spreading produces zones of under-treatment (weak spots) and over-treatment (wasted binder). The DCW 2.2’s metered roller system delivers consistent coverage across the full working width, ensuring the treated soil achieves uniform strength, bearing capacity, and durability — meeting engineering specifications reliably.

Reduced Binder Waste and Dust

The enclosed hopper, metered roller dispensing, and wind-protection outlet minimize airborne dust during application. Less binder lost to wind means lower material costs and better compliance with workplace health and environmental regulations. Precise rate control also eliminates over-application waste — every kilogram of binder goes into the ground, not into the air.

Road Construction — Subgrade and Base Stabilization

The primary application: spreading lime or cement onto road subgrade or base layers before mixing with a soil stabilizer to achieve target CBR (California Bearing Ratio) and unconfined compressive strength. The DCW 2.2’s precision metering ensures the specified binder content (typically 2-6% by weight) is applied uniformly, directly determining the structural quality of the finished road.

Ground Improvement — Soft Soil Treatment

For construction on clay, silt, or waterlogged soils, lime stabilization transforms unworkable ground into a solid, trafficable platform. The DCW 2.2 applies quicklime or hydrated lime at controlled rates, which reacts with clay minerals to reduce plasticity, lower moisture content, and increase bearing capacity — enabling construction to proceed without costly soil removal and replacement.

Airport Runways and Railway Subgrade

Airport and railway projects demand the highest uniformity standards for subgrade treatment. The DCW 2.2’s digital rate control and metered roller precision meet these standards consistently — ensuring every square meter of the treated area receives exactly the specified binder content for certified structural performance.

Agricultural Soil Remediation

Acidic agricultural soils are remediated by applying lime to raise pH and improve nutrient availability. The DCW 2.2 provides far more uniform and controllable application than traditional broadcast lime spreaders, enabling precise pH correction across the field. Combined with a rear-mounted rotavator or soil mixer, lime is incorporated in a single pass.

Environmental Remediation and Landfill Works

Contaminated site remediation and landfill capping projects use cement or lime stabilization to encapsulate contaminants and create impermeable cap layers. The DCW 2.2’s enclosed, low-dust delivery system is especially valuable in these sensitive environments where minimizing airborne particulates is both an environmental and worker-safety requirement.

Q1: What binder materials can the DCW 2.2 spread?

Quicklime (calcium oxide), hydrated lime (calcium hydroxide), Portland cement, fly ash, slag cement, and other dry powdered hydraulic binders. The metering rollers handle different powder densities and granule sizes. Tell us your specific material for calibration confirmation.

Q2: How does the digital control system work?

The operator enters the target application rate (kg/m2) on the in-cab display. The system reads ground speed from a wheel sensor or GPS input, calculates the required roller speed, and adjusts automatically and continuously. If the tractor speeds up or slows down, the roller speed adjusts to maintain the set rate. The display shows live rate, cumulative total, and area covered.

Q3: Why is front-mounting better than a separate spreading pass?

Front-mounting allows binder distribution and soil mixing in a single forward pass. This halves project time, reduces fuel consumption, eliminates a second pass of equipment over the ground, and minimizes the time loose binder sits on the surface exposed to wind dispersal. The net result is faster, cheaper, and more precise stabilization.

Q4: What application rates can the DCW 2.2 achieve?

The metering system covers the typical range required for soil stabilization: approximately 5 to 50 kg/m2 depending on binder type, soil condition, and engineering specification. Precise minimum and maximum rates depend on the specific binder material density. Contact us with your project specification for confirmation.

Q5: Can I use only one roller for narrow applications?

Yes. The two internal rollers operate independently. Engage one roller for approximately 1 m width coverage, or both for full 2 m width. This is controlled from the in-cab display and does not require stopping or leaving the tractor.

Q6: What tractors are compatible?

The DCW 2.2 mounts on standard tractor front linkage systems. The tractor must have a front linkage rated for at least 1,300 kg lift capacity. Compatible tractors typically range from 100 to 300+ hp depending on what rear implement is paired with the spreader. Contact us with your tractor model for compatibility confirmation.

Q7: Does the DCW 2.2 help with dust regulations?

Yes. The enclosed hopper, metered roller dispensing, and wind-protection outlet system generate significantly less airborne dust than manual bag spreading or open-gate spreaders. This helps meet workplace health and safety regulations for airborne particulate exposure and supports environmental compliance on sensitive sites.

Q8: Can the DCW 2.2 be used for agricultural lime spreading?

Yes. For precision agricultural liming — correcting soil pH on high-value crop land — the DCW 2.2 provides far more uniform and controllable application than conventional broadcast spreaders. Combined with a rear-mounted rotavator or soil mixer, lime is incorporated in a single pass for immediate soil reaction.

Q9: Do you ship the DCW 2.2 internationally?

Yes, we export worldwide. Production takes 15-25 days. We handle all export documentation and offer CIF or FOB pricing. Please contact our team for a quotation.

Q10: What maintenance does the DCW 2.2 require?

After each use: empty and clean the hopper to remove residual binder (lime and cement are hygroscopic and will harden if exposed to moisture). Inspect metering roller surfaces and calibration. Check distribution outlet for blockages. Inspect all mounting bolts, linkage pins, and electronic connections. Grease all pivot and bearing points. Store under cover with hopper lid sealed.

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