EW-4000 Rock Rake

🛠 Wide 3.6 m Working Width

Cover more ground per pass than most competing stone rakes in the 3–4 meter class. The 3.6-meter working width means fewer passes, less fuel consumption, and significantly higher daily productivity — often achieving 2–4 hectares per hour depending on field conditions.

⚡ Efficient Hydraulic Drive

The hydraulic rotor drive requires only 100 hp and 60 L/min oil flow — perfectly matched to popular medium-power tractors including John Deere 5E/6M, New Holland T5, Case IH Farmall, Kubota M7, Fendt 300 Vario, and Massey Ferguson 5700 series. Smooth, infinitely variable rotor speed ensures consistent performance in all conditions.

🔄 Active Lift-and-Separate Technology

Unlike simple drag rakes that merely push rocks, the EW-4000’s counter-rotating rotors actively lift stones from the soil, separate fine material, and channel debris into clean windrows. This dramatically reduces the number of passes required and leaves a smoother, seed-ready surface.

🔧 Cab-Controlled Angle Adjustment

Two double-acting hydraulic remotes allow the operator to adjust the rake angle from the tractor cab without leaving the seat. Fine-tune windrow width and raking aggressiveness on the fly to match changing stone density and soil conditions across the field.

💰 Exceptional Cost-Effectiveness

Offering comparable performance to premium European stone rakes at a significantly lower investment cost. Combined with low maintenance requirements — replaceable spring-steel tines, standard bearings, and minimal wear parts — the EW-4000 delivers a rapid return on investment for both contractors and farm operators.

🌏 Universal Tractor Compatibility

Standard Category 2 three-point hitch fits virtually every mid-range tractor on the global market. The 540 rpm PTO and 2 double-acting valve requirement are standard on most modern agricultural tractors, ensuring hassle-free installation and operation without aftermarket modifications.

💪 Lightweight Yet Robust Construction

At just 1,800 kg, the EW-4000 is remarkably light for its 3.6 m working width, avoiding rear-axle overload on medium tractors. Despite its low weight, the frame is built from high-tensile structural steel with reinforced weld joints, heavy-duty bearings, and impact-resistant rotor guards — engineered to withstand continuous operation in rocky, abrasive conditions season after season.

🌾 Agriculture – Field Preparation & Stone Clearing

Before seeding grain, potato, or vegetable crops, fields must be free of surface stones that can damage seeders and harvesters. The EW-4000 sweeps across prepared soil at 3–5 km/h, actively lifting stones from the seedbed and channeling them into neat windrows at the field edge. This is particularly valuable for potato and root crop land where even small stones cause bruising and mechanical damage at harvest.

🏗️ Construction – Site Cleaning & Subgrade Preparation

On construction sites, the rock rake clears loose stone, rubble, and debris from subgrade surfaces before paving, concreting, or landscaping. It is widely used for farm track preparation, access road construction, building pad leveling, and post-demolition site cleanup. The 3.6 m width allows rapid coverage of large areas, reducing labor costs compared to manual clearing or bucket-and-loader methods.

⚽ Landscaping & Sports Turf – Surface Refinement

Golf courses, football pitches, cricket grounds, equestrian arenas, and municipal parks all require stone-free surfaces for safe play and proper turf establishment. The EW-4000 provides a fine-raked finish approaching hand-rake quality, removing stones, roots, and organic debris while preserving the topsoil structure. The adjustable angle control allows operators to fine-tune aggressiveness based on soil type and stone density.

🌳 Forestry & Land Reclamation

In forestry replanting projects and land reclamation works, the EW-4000 removes surface stones, root stumps, and woody debris left after tree felling or land clearance. It prepares a smooth, clean planting bed for young tree seedlings or grass seeding, accelerating the revegetation process. The heavy-duty spring tines can handle thick root material that would jam lighter landscape rakes.

🏛️ Municipal & Government Works

Local government maintenance crews use the EW-4000 for roadside verge clearing, public green space preparation, cemetery ground leveling, and post-flood debris cleanup. The compact 1,800 kg weight and Cat 2 linkage make it compatible with a wide range of municipal fleet tractors, and the 3.6 m width ensures rapid coverage for time-sensitive public works contracts.

Q1: What size stones can the EW-4000 rock rake handle?

The EW-4000 effectively collects and windrows stones ranging from approximately 50 mm (2 inches) to 500 mm (20 inches) in diameter. Stone sizes below 50 mm generally pass through the tine spacing and remain in the soil, which is typically desirable for maintaining good soil structure.

Q2: What tractors are compatible with the EW-4000?

Any tractor with at least 100 hp, 60 L/min hydraulic oil flow, a Category 2 three-point hitch, 2 double-acting remotes, and a 540 rpm PTO is compatible. Popular matches include John Deere 5E/6M, New Holland T5/T6, Case IH Farmall C, Kubota M7, Fendt 300 Vario, Massey Ferguson 5700, Claas Axos/Arion, and Valtra A/N series.

Q3: How does the EW-4000 differ from a standard landscape rake?

A standard landscape rake is a passive implement — it drags tines across the surface without powered rotation. The EW-4000 is an active power rock rake with hydraulically driven counter-rotating rotors that penetrate deeper into the soil profile, actively lift and separate stones, and form organized windrows. It handles far larger stones (up to 500 mm) and requires significantly fewer passes than any passive rake.

Q4: How many hectares per hour can the EW-4000 cover?

At the recommended working speed of 3–5 km/h with a 3.6 m working width, theoretical coverage is approximately 1.1–1.8 hectares per hour. In real-world conditions (turning, overlapping passes, varying stone density), most operators report achieving 2–4 hectares per hour of effective coverage.

Q5: Are the tines replaceable, and what is their service life?

Yes. All tines are individually bolt-on, meaning they can be replaced one at a time without special tools or welding. Tine life depends on soil abrasiveness and stone density, but typical service life is 200–500 operating hours before replacement is needed. We supply replacement tine sets at competitive prices with fast international shipping.

Q6: Can the EW-4000 be used on a skid steer loader?

The EW-4000 is designed as a tractor-mounted implement using a 3-point Cat 2 linkage and hydraulic rotor drive. It is not natively compatible with skid steer loaders. However, we can discuss custom hydraulic drive modifications if your skid steer has sufficient high-flow hydraulic capacity. Please contact our engineering team to discuss your specific requirements.

Q7: Does the EW-4000 work in wet or clay-heavy soils?

The EW-4000 performs best in soils with moderate moisture content. In very wet or heavy clay conditions, soil can stick to the tines and reduce raking efficiency. We recommend operating when soil moisture is below saturation point — ideally after a few dry days following rain. For consistently heavy clay environments, working at lower speeds (2–3 km/h) and reducing the angle setting helps maintain clean windrows.

Q8: What maintenance does the EW-4000 require?

Routine maintenance includes: greasing all bearing points every 8–10 operating hours; checking tine condition and replacing worn or damaged tines; inspecting hydraulic hoses, fittings, and connections for leaks; checking the slip clutch adjustment; and tightening all bolts after the first 5 hours of operation and periodically thereafter. No specialist tools are required for any standard maintenance task.

Q9: Do you ship internationally, and what is the lead time?

Yes, we export the EW-4000 rock rake worldwide. Production typically takes 15–20 days, with shipping transit times depending on the destination port. We can arrange full-container or LCL (less-than-container-load) shipping to any major port. Our team handles export documentation, and we can provide CIF or FOB pricing depending on your preference.

Q10: Can the EW-4000 be used together with a stone crusher?

Absolutely. The EW-4000 is specifically designed to complement agricultural stone crushers. The recommended workflow is: first pass with the EW-4000 to windrow all surface stones, then a second pass with a stone picker to collect the windrows, or alternatively, use a stone crusher to process the windrows directly. This two-stage approach significantly improves stone crusher efficiency by concentrating material into defined rows rather than processing an entire field surface.

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