Description
The EW-4000 is a heavy-duty rock rake — 1,800 kg, 100 cv, 3.6 m working width, steel tine system handling rocks to 300 mm diameter, 3–5 km/h, 60 L/min minimum hydraulic flow, 2 control valves, Cat 2 linkage, 2-year gearbox warranty. It rakes surface and near-surface stones from agricultural fields, construction sites, and cleared land into windrows for collection — with minimal soil disturbance, preserving topsoil structure for subsequent planting or construction operations.
Who the EW-4000 Is For
The EW-4000 suits large commercial farms, land developers, and construction contractors where the priority is clearing surface stones across wide areas with minimum soil disruption. At 3.6 m working width and 100 cv minimum, it covers large field and site areas efficiently from a standard commercial tractor — making it practical for farms in Punjab, Haryana, and Maharashtra running stone clearance ahead of planting, and for construction and infrastructure projects clearing land before base preparation.
For operations where stones must be picked up and removed from the field entirely rather than windrowed, the Ramasse-roches CT-2100 (3,400 kg, 110 cv, 2.5 m³ onboard bunker) collects and holds stones for direct haulage — the EW-4000 and CT-2100 work as a sequence or independently depending on site logistics and dump-point access.
Technical Specifications
| Spécification | EW-4000 |
|---|---|
| Modèle | Râteau à roches EW-4000 |
| Largeur de travail | 3.6 m |
| Poids | 1,800 kg |
| Puissance minimale du moteur | 100 cv (HP) |
| Min. Hydraulic Oil Flow | 60 L/min |
| Vitesse de travail | 3–5 km/h |
| Max. Rock Diameter | 300 mm |
| Dimensions (L × W × H) | 4,550 × 2,400 × 1,380 mm |
| Catégorie de liaison | Cat 2 |
| Vannes de régulation requises | 2 |
| Gearbox Warranty | 2 years |
Rock Rake vs Rock Picker — Which Is Right?
| Factor | EW-4000 Rock Rake ← | Ramasse-roches CT-2100 |
|---|---|---|
| Operation | Rakes stones into windrows | Picks, sorts, and holds stones in onboard bunker |
| Largeur de travail | 3.6 m (wider) | 1.95 m |
| Soil Disturbance | Minimal — tines pass through surface | Low — collection web lifts surface layer |
| Puissance minimale du moteur | 100 cv (lower) | 110 ch |
| Post-Operation Step | Loader or picker required to collect windrows | Bunker dumps directly to trailer — no second step |
| Best For | Wide areas, loader available, soil sensitivity priority | Self-contained removal, no loader required on site |
On sites where a loader or tractor with front bucket is available to collect windrows, the EW-4000 covers more area per hour than the CT-2100 at its wider working width. Where no loader is available, the CT-2100’s self-contained bunker and dump cycle removes stones without a secondary collection machine on site.
How the EW-4000 Works
The tine arms pass through the soil surface across the full 3.6 m working width at 3–5 km/h — lifting and pushing stones forward into a windrow while allowing fine soil to fall back through the tine gaps. The tine geometry is set to engage rocks up to 300 mm diameter without stalling or tine deflection, and to pass over the surface with minimal disturbance to the soil structure below.
The hydraulic system controls tine depth and rake angle from the tractor cab — adjustable to suit different soil types and stone concentrations. On soft alluvial soils in Punjab, shallower tine engagement preserves the topsoil layer. On harder laterite or basalt in Maharashtra and Karnataka, deeper engagement ensures stones embedded just below the surface are lifted and raked rather than pushed past. The 60 L/min minimum flow requirement ensures consistent hydraulic response throughout the raking pass.
The EW-4000 rakes stones into windrows at the end of each pass — or along one edge of the field, depending on the operating pattern. Windrows are then collected by a front loader, tractor bucket, or the CT-2100 Rock Picker running a collection pass on the windrow line. This two-machine sequence is common on large sites where a dedicated loader is already on site for other operations.
Applications
Clearing surface and near-surface stones across large agricultural fields before planting — the 3.6 m working width covers wide field areas faster than narrower alternatives, making it practical for the annual pre-season clearance programs on large Punjab, Haryana, and Maharashtra farms where frost heave, tillage, and rainfall continuously bring new stones to the surface each season.
Clearing rocky debris and construction waste from land ahead of base material placement — industrial parks, residential developments, solar project sites, and road construction right-of-ways where the surface requires clearing before grading and compaction begin. The EW-4000’s minimal soil disturbance characteristic preserves the sub-grade level established by the prior grading pass.
Clearing inter-row stone accumulations in vineyards and orchards in Maharashtra, Karnataka, and Tamil Nadu — where stones damage undercutting and mowing equipment, impede harvest machinery access, and reduce the effective working depth of inter-row cultivation. The EW-4000’s adjustable tine depth allows the operator to work at the correct engagement for each inter-row profile without disturbing the root zone.
After a THOR stone crusher pass on rocky land, some larger un-crushed fragments and surface debris remain. The EW-4000 rakes these into windrows for final removal — completing the surface to a clean, workable state before rotavation or base compaction begins. It works as the final cleanup tool in a CT-2100 rock picker → THOR stone crusher → EW-4000 rake → rotavator sequence on heavily stony land reclamation projects.
Before You Order
| Question | Why It Matters |
|---|---|
| Tractor HP — 100 cv confirmed? | 100 cv minimum. The hydraulic system and tine arm mechanism require adequate power for continuous operation across the 3.6 m width at 3–5 km/h. |
| Hydraulic oil flow — 60 L/min? | 60 L/min is the minimum flow for consistent hydraulic depth adjustment and tine angle control. Confirm your tractor’s rear hydraulic pump output — not just system pressure — before ordering. |
| 2 rear SCVs available? | The EW-4000 requires 2 hydraulic control valves for depth and angle adjustment. Confirm both SCVs are active and unoccupied on your tractor. |
| Windrow collection — loader available? | The EW-4000 rakes stones into windrows — it does not collect them. A front loader, tractor bucket, or the CT-2100 Rock Picker is required to collect and remove the windrows from the field. Confirm your collection plan before ordering. |
| Rock size on site — above 300 mm? | The EW-4000 handles rocks to 300 mm. Stones significantly above 300 mm require manual pre-clearing or a stone crusher pass before the rake can operate without tine damage or jamming. |
Produits associés
What Buyers Say
“We farm 120 ha of wheat and potato in Punjab. The EW-4000 at 3.6 m width covers the full field pre-planting clearance in two to three days using a 115 cv tractor. We have a front loader on site permanently, so the windrow-and-collect sequence works perfectly for us — the loader collects the windrows while the tractor with the rake continues on the next runs. Soil disturbance is minimal compared to our old approach of shallow tillage to bring stones to the surface — the EW-4000 lifts them without disturbing the soil profile.”
“We used the EW-4000 on our solar park site preparation in Rajasthan — 200 ha of rocky scrubland requiring stone clearance before panel foundation work began. The 3.6 m width was critical for our timeline. We ran it ahead of a THOR-2.4 stone crusher on the areas with the heaviest rock concentration — the rake cleared the smaller surface material and the crusher handled the large embedded stones. The adjustable hydraulic depth made it easy to adapt between our soft sandy areas and the harder caliche zones.”
“Good rock rake for our basalt laterite vineyard clearance in Maharashtra. The adjustable tine depth is useful — our vineyard soil varies significantly between rows and the hydraulic adjustment means we are not re-attaching or manually adjusting between sections. Four stars because we had occasional tine arm deflection on our hardest basalt clumps — stones above 250 mm on our site are better handled by pre-clearing with the rock picker before the rake pass. Within its rated 300 mm range on standard stone sizes, the EW-4000 performs well and the 2-year gearbox warranty gives confidence.”
About India Watanabe
India Watanabe Soil Stabilizer Co.,Ltd supplies commercial agricultural and land preparation equipment to farms, contractors, and agencies across India. B2B only — we do not accept 1–2 piece retail orders.
Block No.3,4 & 5, Udyog Bhavan, GH Rd,
Sector 11, Gandhinagar, Gujarat, India.
B2B Enquiries Only
Request a Quote for the EW-4000
Tell us your tractor HP, hydraulic flow, field area, stone size, and application — we respond within 24 hours.
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