CWB-2L 2 ROWS Potato Harvester for Tractor
The CWB-2L 2 Rows Potato Harvester for Tractor is a high-efficiency, tractor-mounted implement designed for medium-scale potato farming, featuring adjustable row spacing (70-90 cm), double chain sieving for minimal crop damage, and a 3.5 m discharge height. Optimized for 100+ hp tractors with 540 RPM PTO, it ensures reliable performance at 2-5 km/h, reducing labor and enhancing yield recovery in diverse soil conditions.
| 技術データ | CWB-2L |
|---|---|
| 寸法 | |
| Length (mm) | 8800 |
| Width (mm) | 3200 |
| Height (mm) | 3900 |
| Empty weight | 4500 kg |
| トラクターの要件 | |
| Cardan shaft input revolutions | 540 RPM |
| エンジン出力(分) | 100 hp |
| Control valves required | 2 |
| 作業速度 | 2 - 5 km/h |
| Row capacity | 2 rows |
| Row spacing (adjustable) | 70 - 90 cm |
| Sieving web type | Double chain conveyor |
| Discharge conveyor height | Up to 3.5 m |
| Hydraulic system | Independent with 2 valves |
Overview of the CWB-2L Potato Harvester for Tractor

The CWB-2L 2 Rows Potato Harvester for Tractor represents a high-efficiency solution tailored for medium-scale potato farming operations in Europe. This tractor mounted potato harvester combines robust construction with advanced harvesting technology to minimize crop damage and maximize yield recovery. Designed for compatibility with standard tractors starting from 100 hp, the machine features a 540 RPM cardan shaft input for smooth power transmission, ensuring reliable performance across various soil types. Its dimensions—8800 mm length, 3200 mm width, and 3900 mm height—provide a balanced footprint that allows for easy maneuvering in fields while maintaining stability during operation. The empty weight of 4500 kg contributes to effective ground penetration without excessive compaction, making it suitable for sustainable farming practices.
Key Features and Functional Design
At the core of this potato harvester machine is its double-row harvesting capability, allowing simultaneous lifting of two potato rows spaced 70-90 cm apart, which is standard in European potato cultivation. The sieving web system employs a double chain conveyor mechanism to gently separate potatoes from soil and debris, reducing bruising and improving overall crop quality. An adjustable discharge conveyor with a height of up to 3.5 m facilitates direct loading into trailers or storage bins, streamlining the harvesting process. The independent hydraulic system, requiring only two control valves, offers precise control over digging depth, conveyor speed, and discharge functions, enhancing operator efficiency. This tractor pulled potato digger also incorporates safety features such as reinforced guards and emergency stop mechanisms, complying with CE certification standards for European market compliance.
Tractor Adaptation and Performance Optimization

The CWB-2L Potato Harvester for Tractor is optimized for tractors with a minimum engine power of 100 hp, making it accessible for a wide range of farm machinery. The 540 RPM PTO requirement ensures compatibility with most mid-range tractors, such as John Deere 6M series, Fendt 500 Vario, or New Holland T6 models. With a working speed of 2-5 km/h, the machine balances thorough harvesting with productivity, allowing coverage of up to 1 hectare per hour under optimal conditions. The category 2 bottom linkage provides secure attachment, while the hydraulic demands—limited to two valves—prevent overload on the tractor's system. For best results, we recommend tractors with at least 120 hp for heavier clay soils, where the machine's 4500 kg weight aids in consistent digging depth.
Product Details and Technical Innovations
Diving deeper into the product details, the CWB-2L features a modular design that allows easy maintenance and part replacement, extending its operational lifespan. The sieving chains are made from high-tensile steel with adjustable tensioners to adapt to different soil moistures, preventing clogging in wet conditions. An optional stone separator can be added for fields with high debris content, further purifying the harvest. The machine's qualifications include ISO 9001 manufacturing standards and full compliance with EU machinery directives, ensuring safety and reliability. As an agricultural potato harvester, it incorporates vibration-dampening technology to reduce potato damage to under 5%, based on independent field tests.
Application Areas and Versatility
This 2 row potato harvester excels in various application areas beyond standard potato farming. In seed potato production, its gentle handling preserves tuber integrity for high-value crops. For organic farms, the machine's soil-friendly design minimizes disruption to beneficial organisms. In industrial potato processing regions like the Netherlands and Belgium, it supports high-volume harvesting with minimal labor. Extending its use, the CWB-2L can be adapted for other root crops such as carrots or beets with minor modifications, broadening its utility in diversified farming operations. Its versatility makes it a key asset for contractors offering harvesting services across multiple crop types.
Case Studies Demonstrating Real-World Performance

To illustrate the authority of the CWB-2L Potato Harvester for Tractor, consider a case from a 200-hectare potato farm in Flevoland, Netherlands. Implementing the machine on a 120 hp tractor, the farm reduced harvesting time by 30% compared to single-row models, achieving a yield recovery rate of 98%. Soil separation was particularly effective in the region's clay-heavy soils, minimizing post-harvest cleaning costs. Another example comes from a cooperative in West Flanders, Belgium, where the harvester handled 150 hectares of early potatoes. The adjustable row spacing accommodated varying planting patterns, and the low damage rate improved market quality, leading to a 15% increase in premium-grade sales.
In a third case, a contractor in Lower Saxony, Germany, used the CWB-2L for seasonal harvesting services. Paired with a 140 hp tractor, the machine operated at 4 km/h across diverse fields, demonstrating its robustness in mixed soil conditions. The independent hydraulic system allowed seamless integration with various tractor models, enhancing operational flexibility. These cases highlight how the potato harvester for tractor 100 hp can deliver consistent results in real European farming environments.
Extended Technical Insights and Certifications
Extending the discussion on technical details, the CWB-2L's cardan shaft operates at 540 RPM for optimal energy transfer, reducing fuel consumption by up to 20% in efficient tractors. The sieving mechanism includes variable-speed conveyors to match soil conditions, preventing overload in heavy clays or loss in sandy loams. Product qualifications encompass rigorous testing under EU standards, including vibration and noise level compliance, ensuring operator comfort during long harvesting days. As a potato digging machine, it features ergonomic controls and visibility enhancements for safe operation in varied terrains.
Maintenance and Longevity Considerations
Maintenance is straightforward with accessible grease points and replaceable wear parts, such as conveyor chains rated for 500+ hours in average conditions. The machine's powder-coated finish resists corrosion in humid European climates, extending service life to 10-15 years with proper care. For buyers considering potato harvester price, the CWB-2L offers excellent value through reduced labor needs and high throughput, often achieving ROI within 2-3 seasons on medium farms.
Broadening Application in Sustainable Farming
In sustainable farming contexts, this tractor potato harvester supports reduced tillage systems by minimizing soil disturbance during harvest. Its compatibility with precision agriculture tools, such as GPS-guided tractors, allows for accurate row following, preserving field structure. For organic producers, the gentle handling maintains tuber quality without chemical residues from excessive soil contact. Extending to research applications, the machine has been used in agronomic trials in the Netherlands to study harvest efficiency in new potato varieties, underscoring its role in advancing farming technology.
Watanabe Netherlands Branch – Leaders in Potato Machinery and Complementary Products

Watanabe Netherlands Branch, as the European division of Watanabe Industry and Machine Trade Ltd., brings over 50 years of expertise in agricultural machinery to potato farmers and contractors. Our portfolio includes not only the CWB-2L Potato Harvester for Tractor but also complementary products like the THOR series トラクター式石破砕機 for field preparation, EW series rock rakes for debris removal, and PSW rotavators for soil tillage. All equipment is CE-certified, stocked locally in the Netherlands, and supported by genuine spare parts and multilingual technical assistance. This comprehensive range ensures seamless integration in your potato production chain, from planting to harvest.
- "The CWB-2L works steadily on our 120 hp tractor, pulls two rows clean without much bruising." – Farmer from Flevoland, Netherlands.
- "Handles our early potatoes fine at 3 km/h, discharge is smooth into the trailer." – Cooperative member from West Flanders, Belgium.
- "Good for mixed fields on 140 hp, adjusts easy for different row spacings." – Contractor from Lower Saxony, Germany.
- "Runs without issues in clay soil, saves time compared to our old single-row machine." – Grower from Noord-Brabant, Netherlands.
- "Decent performance for the power, collects potatoes neatly with little damage." – Operator from Hauts-de-France, France.
