4m Width Power Harrow

Overview

The 4-meter wide power harrow is a critical implement in modern agriculture, designed to handle extensive field operations efficiently. Its broad working width significantly reduces the number of passes required, saving time and fuel while ensuring consistent soil preparation. Unlike traditional harrows, this model features powered tines driven by the tractor's PTO, enabling deeper and more aggressive tillage. Primarily used in large-scale farming and contracting services, it excels in preparing seedbeds for crops like wheat, corn, and soybeans. The design often includes hydraulic folding mechanisms for transport convenience, making it suitable for farms with limited storage space. Its robust construction ensures longevity even in tough soil conditions.

Structure and Working Principle

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The harrow consists of a rigid steel frame supporting multiple rows of rotating tines, typically arranged in a staggered pattern to maximize soil disruption. The tines are powered via a driveline connected to the tractor's PTO, rotating at speeds between 200–400 RPM to break up soil clods and incorporate organic matter. Hydraulic cylinders allow operators to adjust the working depth (usually 10–20 cm) and fold the wings for road transport. Some models feature shock-absorbing tine mounts to protect against sudden impacts. The even weight distribution across the 4-meter span prevents uneven tillage, crucial for precision farming applications.

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Key Features

1. **Adjustable Tine Angle**: Enables customization for light cultivation or deep tillage. 2. **Quick-Hitch Compatibility**: Fits most Category II/III tractor hitches. 3. **Overload Protection**: Shear bolts or slip clutches safeguard the driveline. 4. **Low Maintenance**: Sealed bearings and greaseable joints extend service intervals. Advanced models may include depth control wheels or leveling rakes for finer finish work. The wide coverage area (4m) makes it 30–50% more efficient than standard 2–3m harrows, though requiring higher tractor horsepower (minimum 120 HP recommended).

Application Areas

This harrow is ideal for: 1. **Primary Tillage**: Replacing plows in reduced-tillage systems. 2. **Stubble Management**: Breaking down crop residues post-harvest. 3. **Pasture Renewal**: Preparing soil for overseeding. 4. **Organic Farms**: Mechanical weed control without herbicides. It performs best in medium to light soils; extremely heavy clay may require slower operating speeds. Contractors value it for rapid field turnaround during tight planting windows. Some vineyards and orchards use narrower variants for row maintenance.

Maintenance and Precautions

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Regular maintenance includes: 1. Lubricating all pivot points every 50 hours. 2. Inspecting tines for wear (replace if bent >15°). 3. Checking gearbox oil levels annually. 4. Cleaning debris from the frame after use. Operational precautions: Avoid working in rocky fields without proper guards. Always disengage PTO before adjustments. Transport with wings folded and SMV signs displayed. Uneven surfaces may require counterweights on the tractor to maintain stability.

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B2B Procurement Guide

When sourcing: 1. Verify compatibility with your tractor's hydraulic flow (minimum 20 L/min for folding models). 2. Compare tine configurations – C-shaped tines suit residue-heavy fields, while L-shaped excel in breaking hardpan. 3. Prioritize brands offering spare parts availability within 48 hours. Bulk purchase discounts (5+ units) may reduce costs by 8–12%. Consider regional dealers for faster service support. Leasing options exist for seasonal use, typically at 10–15% of the purchase price annually. Request demo units to test field performance before committing.