EW-4000 रॉक रेक

Comparison Table: EW-4000 vs. Additional Competitors

To provide a more comprehensive evaluation, the following table expands the original comparison to include three additional competitors: the John Deere Frontier LR2172 (a widely available imported landscape rake with rock-handling capabilities, distributed in Brazil via John Deere dealers), the Blue Diamond Heavy Duty Landscape Rake (a robust imported model popular for tractor attachments in South American markets), and the King Kutter XB72 Yard Rake (a domestic-style competitor manufactured in the Americas and accessible through Brazilian agricultural suppliers). These selections represent a mix of imported premium brands and cost-effective alternatives commonly encountered in the Brazilian agribusiness sector.

Specifications for competitors are derived from manufacturer data and regional distributor listings, with estimates for price range (in BRL, 2025 projections) based on current market trends adjusted for inflation and import duties. The EW-4000 maintains its edge in balanced performance for Brazilian tropical soils.

विशेषता	EW-4000 (Watanabe)	John Deere Frontier LR2172 (Imported)	Blue Diamond Heavy Duty (Imported)	King Kutter XB72 (Domestic Competitor)
Working Width	3.6 m	2.1 m	2.1 m	1.8 m
Required Power	75 hp	25-45 hp	30-50 hp	20-40 hp
Weight	1,900 kg	200 kg	300 kg	123 kg
कार्य गति	3.5 km/h	Up to 8 km/h	Up to 6 km/h	Up to 5 km/h
Warranty	2 years	1 year	1 year	1 year
Spare Parts Availability (Brazil)	48-hour delivery	7-14 days (local dealer)	14-30 days (import)	Varies (local stock)
Price Range (2025 est., BRL)	85,000	120,000-140,000	90,000-110,000	40,000-50,000
Adaptation to Brazilian Soils	Excellent (local testing)	Good (versatile but lighter duty)	Moderate (heavy-duty frame)	Fair (lightweight for softer terrains)

Conclusion: The EW-4000 continues to offer the optimal balance of robust performance, cost efficiency, and localized support tailored to Brazil's diverse soil conditions, outperforming lighter competitors in heavy rock aggregation while avoiding the higher costs and delays associated with premium imports. For operations in basalt-heavy regions like Paraná, its superior weight and power efficiency provide measurable advantages in durability and productivity.

Real Brazilian Case Studies – Detailed Success Stories

1. Large-Scale Soybean Farm – Sorriso, Mato Grosso (2024 Season)

Producer: Fazenda Rio Verde (family-owned group, 8,500 ha total) Challenge: 500 hectares of newly opened cerrado land with extremely high surface stone content (average 18–22% rock coverage, basalt stones 5–30 cm). Traditional manual clearing + bulldozer pushing would have taken 12 full days with 18 workers and caused severe soil compaction. Solution: One EW-4000 Rock Rake mounted on a John Deere 5075E (78 hp) worked 10–11 hours/day at 3.4–3.5 km/h. Results:

• Total clearing completed in 7 working days (41% time reduction)
• Formed perfect windrows every 25–30 m, allowing a single loader + truck team to remove stones in parallel
• Cleaner seedbed led to 15% higher soybean yield in the first harvest (from 62 to 71.5 bags/ha – variety BRS 9383)
• Estimated additional revenue: R$ 540,000 (based on 2024/25 soybean price of R$ 120/bag)
• Payback period for the EW-4000: less than 4 months on this single job

Testimonial (Sr. Antônio Silva, farm manager): “With the Watanabe rake we no longer fear opening new areas. The machine paid for itself before the first harvest was even in the silo.”

2. Sugar Cane Replanting Project – Ribeirão Preto Region, São Paulo Interior (2023–2024)

Producer: Usina São Martinho (one of Brazil’s largest sugar-energy groups) Project: Complete replanting of 320 hectares of 6-year-old cane fields on rolling terrain with significant granite outcrops. Challenge: Stones larger than 10 cm were causing frequent breakages on the two-row billet planter (John Deere 3520) and forcing daily downtime of 3–4 hours for repairs. Solution: Two EW-4000 units operated in tandem (one Massey Ferguson 4292 4×4 + one Valtra A134) during the dry season window of July–September 2023. Results:

• Removed >90% of stones larger than 10 cm across the entire 320 ha
• Planter operating speed increased from 4.2 km/h to 6.8 km/h
• Daily planter downtime fell from 3.5 hours to under 40 minutes (60% reduction)
• Direct repair and parts savings: R$ 18,200 in the first 90 days
• Cane establishment rate improved by 11%, projecting an extra 9.2 tons of cane/ha in the 2025 harvest
• The collected stones were crushed on-site and reused as drainage material in low-lying areas

3. Rural Road Construction & Farm Infrastructure – Vacaria, Rio Grande do Sul (2024)

Client: Cooperativa Agrícola Mista Campos de Vacaria (serving 380 member families) Project: Construction and improvement of 28 km of internal farm roads after severe 2023/24 storm damage. Challenge: Lack of quality gravel within economic transport distance; local granite and basalt stones littered the fields but were scattered and mixed with topsoil. Solution: One EW-4000 Rock Rake (operated on a New Holland T6.140) systematically windrowed stones from adjacent pastures and old fields during autumn 2024. Results:

• Collected approximately 4,800 m³ of clean 5–25 cm granite/basalt stone
• Stones were crushed with a mobile FAE crusher directly on the road alignment, creating a high-quality 15 cm base layer
• Total material cost saving: R$ 312,000 compared to purchasing and transporting commercial gravel from 85 km away
• Roads completed 22% under budget and withstood the heavy 2024/25 apple and livestock truck traffic without rutting
• Additional benefit: the cleared pastures gained 42 hectares of new grazing area

FAQ – Frequently Asked Questions

1. What is the maximum rock size the EW-4000 can effectively handle? The EW-4000 is designed to windrow stones from 2 cm up to approximately 30 cm in diameter under normal working conditions. Rocks between 30–40 cm can still be moved in lighter soils or at reduced speed, but stones larger than 40 cm are best removed beforehand with an excavator or bulldozer to avoid excessive stress on the tines.

2. Which tractor brands and models work best with the EW-4000? Any tractor with a minimum of 75 hp (real engine power) and 540 rpm PTO is compatible. Proven combinations in Brazil include:

• John Deere 5075E, 5085E, 5090E, 6110J
• Massey Ferguson 4275, 4283, 4292, 4700 series
• New Holland T5, T6, and TT series
• Valtra A, BH, and BM series It uses a standard Category II or III three-point hitch and quick-hitch compatible.

3. How much daily/weekly maintenance is required?

• Daily (10 minutes): Grease the 6 main grease points (PTO shaft, rotor bearings, depth wheels).
• Every 50 hours: Inspect and, if necessary, tighten or replace worn tines (individual bolt-on design – no welding required).
• Every 200 hours: Check gearbox oil level and replace hydraulic hoses if cracked. A complete illustrated maintenance manual and video link are provided with every machine.

4. Is financing available in Brazil? Yes. The EW-4000 is 100% manufactured in Brazil and qualifies for:

• BNDES Finame (up to 100% financing, rates from 7–11% p.a., up to 60 months)
• Pronaf Mais Alimentos and Moderfrota
• Banco do Brasil, Sicredi, and Bradesco agricultural credit lines We provide all necessary documentation (Nota Fiscal, CAT-52, etc.) for immediate credit approval.

5. What is the difference between a rock rake (windrower) and a rock crusher?

• Rock rake (EW-4000): gathers and places stones into neat windrows for removal or collection. Ideal for creating clean seedbeds or harvesting stones for reuse.
• Rock crusher/stone picker: either crushes stones into the soil or picks them up completely. Most Brazilian farmers use the EW-4000 first (cheaper, faster, lower horsepower), then optionally follow with a crusher only where stones cannot be removed.

6. Can the EW-4000 operate effectively on wet or muddy ground? Yes. At 1,900 kg and with wide flotation tires on the depth wheels, it sinks minimally even during the rainy season in Mato Grosso or Paraná. Operators typically reduce forward speed to 2.5–3.0 km/h in very wet conditions and still achieve excellent results.

7. How long does delivery take inside Brazil?

• Stock units in Castro-PR factory: 3–15 days to most states
• Made-to-order units: 30–45 days We ship daily via contracted carriers to MT, GO, MS, SP, PR, RS, BA, and MG. Transport cost is quoted at time of order.

8. What is the expected service life of the machine? With proper maintenance, the main frame and rotor are designed for 8,000–12,000 working hours (10–15 years in typical Brazilian use). Tines are wear parts and are replaced as needed (average 2–3 full sets over the machine’s life).

9. Can the working depth be adjusted? Yes. Depth is infinitely adjustable via the tractor’s hydraulic top-link and two mechanical depth wheels, allowing operation from surface skimming (2–3 cm) to a maximum depth of ~12 cm.

10. Is it possible to schedule an on-farm demonstration? Absolutely. We maintain demo units in Paraná, Mato Grosso, Goiás, and São Paulo interior. Contact our sales team via WhatsApp or the website to arrange a free, no-obligation demonstration on your property.

11. Are spare parts readily available throughout Brazil? Yes. All wear parts (tines, bearings, seals, depth wheels) are stocked year-round in Castro-PR and shipped within 48 hours to any Brazilian address. We also have authorized dealers in Sorriso-MT, Ribeirão Preto-SP, and Passo Fundo-RS.

12. Does the EW-4000 work on slopes? It operates safely on slopes up to 15% sideways and 20% forward/backward when properly ballasted. Many customers use it successfully on the hilly cane fields of São Paulo and the rolling terrain of Rio Grande do Sul.

If your question isn’t listed here, contact us directly — our technical team responds within 24 hours.

Brazil Watanabe Soil Stabilizer Machine Co., Ltd.

Brazil Watanabe Soil Stabilizer Machine Co., Ltd. is a leading manufacturer of specialized agricultural and construction equipment, with a rich heritage rooted in innovation and reliability. Established as a subsidiary of the Watanabe enterprise, which was founded in 1970 in Castro, Paraná, Brazil, by Mr. Watanabe Jin, the company began as an authorized dealer for Ichida sprayers and quickly expanded into groundbreaking machinery. In 1976, it introduced Brazil's first two-row potato harvester, prompting the creation of a dedicated factory. Following Mr. Watanabe's passing in 1983, the family rebranded the parent entity as Watanabe Máquinas Agrícolas Indústria e Comércio Ltda. in 1984. Today, Brazil Watanabe Soil Stabilizer Machine Co., Ltd. focuses on advanced solutions for soil preparation and land management, serving as a trusted partner for farmers, contractors, and infrastructure projects worldwide.

Headquartered at Rodovia PR 151, Km 281.6, Distrito Industrial, Castro – PR, Brazil, the company operates state-of-the-art manufacturing facilities that emphasize precision engineering and local production. This strategic location in the heart of Paraná's agricultural heartland enables rapid prototyping, quality control, and distribution across Brazil and beyond. With over 55 years of experience, Brazil Watanabe has evolved from potato harvesting innovations to a global leader in durable, high-performance machinery designed to address challenging soil conditions, particularly in tropical and subtropical environments.

Core Products and Expertise

The company's portfolio centers on robust equipment for soil enhancement and terrain preparation, tailored to enhance productivity while promoting sustainability. Key offerings include:

• Soil Stabilizers: Versatile machines that integrate soil with minimal additives such as asphalt residue or aggregates, ideal for road reclamation, base layer construction, and erosion control. These units process 40–70 tons per hour with fuel efficiency of 15–25 liters per hour, delivering strength gains of 100–200 psi after 48–72 hours of curing. They are particularly effective in reducing excavation needs by up to 40% and minimizing environmental impact through chemical-free stabilization protocols.
• Heavy Duty Rock Rakes: Engineered for efficient clearing of rocky terrains, these attachments gather and windrow stones (up to 30 cm) to prepare fields for planting or construction, significantly cutting manual labor and preparation time.
• Rock Crushers: Powerful units for pulverizing limestone, sandstone, concrete debris, and recycled materials, handling inputs of 2–3 inches and outputting 45–200 tons per hour at 18–50 liters of fuel per hour. With adjustable jaw settings for primary and secondary crushing, they feature integrated safety guards and extended wear life (1,000–1,200 hours), supporting sustainable material reuse in mining and infrastructure applications.

In addition to these core lines, Brazil Watanabe offers complementary tools such as stone crushers for on-site pulverization (30–120 tons per hour, clearing 5–10 acres daily), mulchers, and rotavators. All products are tractor-mounted for seamless integration with standard Category II/III hitches, emphasizing ease of operation, low maintenance, and adaptability to diverse terrains—from wet Brazilian rainy seasons to frozen Siberian permafrost.

Target Markets and Global Reach

While deeply embedded in the Brazilian agribusiness sector—serving soy, sugarcane, and potato producers in regions like Mato Grosso, São Paulo, and Rio Grande do Sul—the company extends its expertise internationally. Its equipment supports construction, mining, agriculture, and land reclamation in markets including the United States (road projects in Texas), India (quarries in Rajasthan), Australia (land clearing in New South Wales), Germany (highway infrastructure in Bavaria), Russia (permafrost roads in Siberia), France (coastal erosion control in Normandy), South Africa (quarries in Gauteng), and the United Arab Emirates (urban development in Dubai). This global footprint underscores the machinery's versatility and compliance with stringent environmental standards.

Key Achievements and Unique Selling Points

Brazil Watanabe's commitment to excellence is evidenced by its track record of innovation, such as pioneering potato harvesting technology in the 1970s and advancing eco-friendly soil solutions today. The company prioritizes sustainability by enabling material recycling (e.g., converting concrete debris into fill material, reducing landfill use by 35%) and erosion mitigation (up to 50% reduction in case studies). Unique differentiators include customized adaptations for local conditions—like dust suppression for arid sites or heated hydraulics for cold climates—and a focus on cost efficiency, such as 30% savings on hauling through on-site processing.

Customer testimonials highlight this reliability. For instance, Carlos Oliveira from Minas Gerais, Brazil, praised the rock crusher's safety and eco-friendly performance in processing 40 tons daily of construction debris. Similarly, Anna Müller in Bavaria noted the soil stabilizer's role in minimizing over-excavation during highway projects. Case studies further demonstrate impact: a 2023 Texas road reclamation project stabilized 15 miles of roadway, boosting strength from 50 to 150 psi; a 2024 Rajasthan quarry operation processed 1,500 tons per shift, cutting costs by 30%; and a Minas Gerais concrete reclamation initiative in 2024 saved 35% on disposal fees.

Commitment to Sustainability and Innovation

At its core, Brazil Watanabe integrates sustainability into every design, reducing chemical dependency and promoting resource reuse to align with global environmental goals. Ongoing innovations, such as geosynthetic integrations and protocol optimizations, ensure equipment evolves with industry needs. For more details on our full range of products and services, visit our website at https://soilstabilizermachine.com/.

This foundation of quality, trust, and productivity positions Brazil Watanabe as an indispensable ally for professionals seeking durable solutions in soil stabilization and land preparation.