Coletor de pedras CT-2100 – Coletor de pedras profissional de 110 HP com reservatório de 2,5 m³ (Estoque na Coreia)
Tractor-mounted rock picker that collects and removes surface stones completely. 2.5 m³ hydraulic-tip bunker discharges directly into a truck. Picks stones up to 80 Kg at 3–5 km/h. Zero stone throw — safe near roads, greenhouses, and planted rows.
110 HP · 1.95 m width · Cat. 2 hitch · 60 L/min hydraulic flow · Korea Ansan-si stock.
Picks Up Stones and Removes Them — Nothing Left Behind
The CT-2100 is a tractor-mounted rock picker that physically lifts surface stones from the field and deposits them into a 2.5 m³ hydraulic-tip bunker. When the bunker is full, it tips hydraulically to discharge directly into a waiting truck — no manual handling required. The machine collects stones from approximately 5 cm diameter up to 80 kg in weight, at a working speed of 3–5 km/h across a 1.95 m picking width. Full-width rubber shielding prevents stone projection in any direction — safe to operate near roads, irrigation infrastructure, and planted crop rows.
Unlike a stone crusher, the CT-2100 does not leave anything behind. The stones collected are physically removed from the field, transported away, and the field surface is left completely clear of the stone fraction above 5 cm. This complete removal is what ginseng growers, potato farms, and vegetable producers require when crushed aggregate remaining on the field surface would cause crop damage or harvester contact injury.
The CT-2100 works most effectively as the second step after stone crushing. A Triturador de pedra THOR 2.4 or THOR 3.0 pass first reduces all embedded stones — including those above the CT-2100's 80 kg picking limit — into fragments the picker can then collect. On fields with only light surface stone below the 80 kg limit, the CT-2100 can operate as the first and only machine. On fields with the Ancinho de rocha EP-EW-4000 used first to windrow surface stones, the CT-2100 collects from those windrows more efficiently than from a randomly distributed stone surface.
Technical Specifications — CT-2100
| DADOS TÉCNICOS | CT-2100 |
|---|---|
| Comprimento (mm) | 6,000 |
| Largura (mm) | 3,050 |
| Altura (mm) | 2,340 |
| Peso | 3,400 Kg |
| Categoria de vínculo | Cat. 2 |
| Largura útil | 1,95 m |
| Capacidade do bunker | 2,5 m³ |
| Peso máximo da pedra | 80 Kg |
| Potência mínima do trator | 110 HP |
| Min. hydraulic flow | 60 L/min |
| Velocidade de trabalho | 3–5 km/h |
| Válvulas de controle necessárias | 2 |
ⓘ All specifications from the Watanabe official product brochure. 2 hydraulic control valves required (bunker tip + picking head motor). Minimum 60 L/min hydraulic flow — verify if your tractor is below 120 HP. HP = horsepower.
Key Features
■ 2.5 m³ Hydraulic-Tip Bunker
Tips hydraulically to discharge collected stones directly into a truck, stone pile, or field margin. The bunker geometry allows discharge over a standard truck sidewall without requiring the tractor to reposition alongside. No manual stone handling at any point — the tractor operator completes the full collection and discharge cycle from the cab.
■ Hydraulic Swinging Drawbar
Adjusts weight distribution for slope operation up to 25%. Maintains consistent picking-tine ground contact across the full 1.95 m working width on uneven or cross-slope terrain — important for the terraced and sloped fields common in Korean highland agricultural zones.
■ Carbide-Tipped Picking Tines
Picking tines with carbide tips for extended service life in abrasive Korean granite and Jeju basalt conditions. Individually replaceable. Inspect tines at regular intervals; carbide-tipped tines maintain their picking geometry significantly longer than standard steel tines in demanding soil conditions.
■ Full-Width Rubber Shield — Zero Stone Throw
Prevents stone projection across the full 1.95 m working width. Safe to operate near public roads, greenhouse structures, installed drip irrigation, and planted crop rows where stone projection would cause injury or damage. Required for any operation in shared working environments.
■ High-Capacity Hydraulic Motor
Maintains full picking-tine speed in wet clay and heavy spring soil conditions common in Korean agriculture. The 60 L/min minimum hydraulic flow specification ensures the picking head operates at rated speed even in demanding conditions. Verify hydraulic flow output on tractors below 120 HP before ordering.
Aplicações na Coreia
Ginseng Field Preparation — Complete Stone Removal Required
Ginseng production in South Chungcheong (Geumsan-gun, Yesan-gun) requires complete stone removal to below 2 cm for the 6-year rotation. Any residual stone above this size causes root deformity at harvest and grade loss. The professional sequence: THOR 2.4 crushes large embedded stones → CT-2100 picks up all crushed fragments. The two-machine sequence is standard practice among commercial ginseng operations in Korea's ginseng belt because neither machine alone achieves the required result.
New Orchard Stone Clearance
For apple, pear, citrus, and persimmon orchard establishment — from initial sapling planting through to irrigation system installation — the field must be completely stone-free. The CT-2100's 2.5 m³ bunker loads approximately 4–5 tonnes of collected stone per fill before hydraulic discharge into the waiting truck. On a typical Korean highland orchard site, one full bunker covers 0.8–1.2 hectares of moderate stone density field before discharge is needed.
Potato and Vegetable Seedbed Preparation
Mechanical potato harvesters and vegetable harvesters are damaged by stones in the harvesting zone. For potato production in Gangwon-do (Pyeongchang-gun, Hoengseong-gun), the standard pre-planting sequence is: THOR stone crusher → CT-2100 rock picker → Rotavador PSW-3200 for seedbed tillage. The CT-2100 provides the complete stone removal between the crushing and tillage steps.
Jeju Island Annual Stone Clearance
Jeju's basalt-derived soils produce annual surface stone accumulation through frost-heave. Annual CT-2100 stone clearance is standard practice on Jeju citrus and greenhouse vegetable farms. The carbide-tipped picking tines handle Jeju basalt abrasion with higher service life than standard steel tines — inspect at more frequent intervals than mainland field use due to the higher abrasiveness of Jeju volcanic rock.
The Complete Stone Clearance System — Crusher + Picker in Sequence
The CT-2100 rock picker is most commonly used as the second step in a two-machine stone clearance sequence. Understanding why the crusher-then-picker order is necessary — rather than the picker alone — explains the professional standard that Korean highland operators have adopted for ginseng, potato, and orchard preparation.
Why the Crusher Must Come First
The CT-2100 has a maximum stone weight limit of 80 Kg per individual stone. On Korean highland granite and Jeju basalt fields, embedded stones above this weight are common — in heavily stoned ginseng preparation zones in Geumsan-gun and on mountain orchard terraces across North Gyeongsang, individual stones regularly exceed 100–200 Kg. If the CT-2100 attempts to lift a stone above its 80 Kg design limit, the picking tines deflect, the stone is not lifted, and in the worst case the tine is bent or broken. A THOR stone crusher pass first reduces all embedded stones — including those far above the picker's weight limit — into fragments below 80 Kg that the CT-2100 can then collect cleanly.
Why the Picker Must Come Second
After a THOR crushing pass, the field surface is covered in crushed aggregate — stone fragments of varied sizes from fine gravel to pieces up to approximately 10 cm. For road construction and general land clearing, this aggregate remaining on the field surface is acceptable or beneficial. For ginseng, potato, and vegetable seedbeds, any residual stone above approximately 2–5 cm causes problems: root deformity in ginseng during the 6-year tuber development, harvester blade contact and crop bruising in potato harvest, and irrigation line puncture in orchard drip systems. The CT-2100 picks up everything above approximately 5 cm and removes it completely from the field — the post-crusher surface that was unacceptable for planting becomes completely clean after the picker pass.
The Combined Three-Step Sequence
THOR 2.4 or THOR 3.0 Rock Crusher — Reduces all stones including those above 80 Kg to collectable fragment size. Mulches vegetation simultaneously. Duration: approximately same ha/h as the CT-2100 picking pass.
CT-2100 Rock Picker (this machine) — Collects all fragments from 5 cm to 80 Kg into the 2.5 m³ bunker. Hydraulic tip to truck discharge. Zero residual stone above 5 cm after this pass.
PSW-3200 Rotavator or equivalent — Primary tillage incorporates remaining organic material and produces crop-ready seedbed depth and fineness. Field is now ready for furrowing, fertilizing, and planting.
Korean commercial standard: This three-step sequence — crusher, picker, rotavator — has become the professional preparation protocol for Korean highland potato, ginseng, and high-value vegetable production because it consistently produces results that neither a crusher alone nor a picker alone can achieve.
Watanabe — Mais de 50 anos de fabricação de máquinas agrícolas
Watanabe Indústria e Comércio de Máquinas Ltda., founded in Castro, Paraná, Brazil in 1970, manufactures the complete Watanabe agricultural implement range — including the CT-2100 rock picker — from a single dedicated production facility in Paraná state. Over 50 years of continuous production in the Brazilian agricultural machinery sector, where rock-heavy soils, steep terrain, and demanding seasonal operating schedules are standard, has produced the engineering experience and manufacturing process knowledge that the CT-2100 design reflects.
CT-2100 Design and Manufacturing Quality
The CT-2100 picking head assembly — the mechanical interface between the machine and the soil — is manufactured from high-strength steel with carbide-tipped picking tines designed for extended service in abrasive soil conditions. The hydraulic bunker system: cylinder, pivot, and tip mechanism are assembled and functionally tested at the factory. The oversized hydraulic motor specification is a deliberate design choice over the minimum-specification alternatives — it maintains full picking-head speed under the elevated hydraulic load of wet clay and heavy soil conditions where a minimum-spec motor would lose speed and reduce field output. The 3,400 Kg machine weight reflects the structural specification needed to maintain picking-head ground contact at 3–5 km/h forward speed across the terrain variations typical of Korean highland agricultural fields.
Why the CT-2100 Suits Korean Agricultural Conditions
Korean agricultural soils present several picking challenges: spring clay soils in South Chungcheong and South Jeolla are wet and cohesive during the key stone clearance window; Gangwon-do highland soils combine granite fragments with fine sediment that can bridge the tine spacing if the picking head slows below rated speed; Jeju Island basalt fragments are angular and abrasive, accelerating tine tip wear in machines not specified for abrasive conditions. The CT-2100's carbide-tipped tine specification, oversized hydraulic motor, and adjustable swinging drawbar for slope terrain were all developed to address exactly these soil-machine interaction conditions.
Korea Local Stock and After-Sales Support
Korea Watanabe stocks the CT-2100 and replacement carbide-tipped tine sets locally in Ansan-si, Gyeonggi-do. Local tine stock is particularly important for Korean operations because the primary tine replacement demand peaks in spring (before the stone clearance season) and in autumn (after the season, during machine storage preparation). Ordering tines in advance of the season is strongly recommended — replacement tines for the CT-2100 are available for next-day domestic dispatch.
Korean-language technical support covers product commissioning, tine inspection scheduling, hydraulic system checks, and wear part ordering throughout the machine's service life. Warranty terms covering mechanical defects in the drive system, bunker hydraulic assembly, and main frame structure are confirmed at purchase.
Perguntas frequentes
Should I use the CT-2100 on its own or after a stone crusher?
The CT-2100 has a maximum stone weight of 80 kg. Stones heavier than this — common in Korean highland granite and basalt fields — cannot be picked up safely and will stop the tines or damage the picking mechanism if attempted. Pre-crushing with the THOR 2.4 or THOR 3.0 is the correct first step on heavy-stone fields, reducing all stones to collectable fragment size before the CT-2100 pass. On fields with uniformly light stone density where individual stones are below 80 kg, the CT-2100 can be the only machine needed. Send us a description or photo of your field stone conditions and we will confirm the right sequence.
What size stones does the CT-2100 collect?
The CT-2100 picks stones from approximately 5 cm diameter (the minimum size the tine spacing collects reliably) up to the 80 kg weight limit. Stones below 3–5 cm pass through the tine gaps and remain in the soil — which is generally acceptable for most Korean agricultural applications since very small stone fragments do not typically cause harvester damage or crop quality issues at this size.
What tractor do I need?
110 HP minimum, Category 2 three-point hitch, 2 hydraulic remote valve outlets, and at least 60 L/min hydraulic flow. Most Korean farm tractors above 110 HP — Daedong (대동), LS, TYM, John Deere, New Holland — meet these requirements. Tractors between 110–120 HP should have their hydraulic flow output verified, as some compact tractor hydraulic systems may deliver below the 60 L/min minimum under combined load. We confirm compatibility for your specific tractor model before delivery.
How many truck loads of stone does the CT-2100 collect per day?
A 2.5 m³ bunker filled with stone typically weighs approximately 4–5 tonnes depending on stone density (basalt is heavier than granite). Bunker fill time varies with stone density on the field — a heavily stoned field after a THOR crushing pass may fill the bunker in 45–60 minutes; a lighter field may take longer. Plan your truck rotation and disposal site logistics before the picking operation to avoid waiting with a full bunker during the productive working day.
Can the CT-2100 work on slopes?
The hydraulic swinging drawbar provides weight distribution adjustment for slopes up to 25%. For slopes above 25%, operate with the bunker at partial fill to keep the combined machine-and-load weight distribution manageable on the tractor's rear axle. Discharge the bunker more frequently on steep sections rather than waiting for a completely full load. The hydraulic drawbar adjustment compensates for cross-slope terrain — useful on terraced Korean highland fields where the machine operates across the slope rather than up-and-down it.
How does the CT-2100 differ from using an EP-EW-4000 rock rake?
The EP-EW-4000 rock rake sweeps stones into windrows but does not collect them — it organizes them for subsequent pickup or crushing. The CT-2100 physically picks stones and loads them into a bunker for removal. The rock rake alone cannot remove stones from the field; it is a concentration and preparation step. The CT-2100 alone cannot handle stones above 80 kg. Combined workflow: rock rake (windrows lighter stones) → CT-2100 picks from windrows. Or: THOR crusher (reduces large stones) → CT-2100 collects fragments. The appropriate combination depends on your stone size and density.
What maintenance does the CT-2100 need after the picking season?
After each season: clean all soil and stone debris from the tine assembly and bunker interior; inspect every tine for wear, bending, or cracking — replace damaged tines before storage; check all hydraulic hoses for leaks; verify the bunker hydraulic cylinder operates through full extension and retraction; inspect the full-width rubber shield for tears and replace any damaged sections before the next season. Order replacement tines in autumn for delivery before the spring clearing season — tine stock is maintained in Ansan-si for next-day domestic supply.
Avaliações de clientes
Jang Hyeon-su — Ginseng Farm, Geumsan-gun, South Chungcheong (2024)
★★★★★
"6-year ginseng rotation requires the cleanest seedbed available. First season with the CT-2100 after a THOR 2.4 crushing pass: prepared 8 hectares of new ginseng plots in 6 working days to a standard that manual labor couldn't achieve. Grade rejection due to stone contact dropped approximately 70% in the first harvest cycle from those plots."
Bae Seong-jun — Apple Orchard, Cheongdo-gun, Gyeongsangbuk-do (2024–2025)
★★★★★
"New orchard on 12 hectares of former scrubland. THOR 2.4 first, CT-2100 second. The CT-2100 collected approximately 85 tonnes from the 12 hectares over 3 working days — bunker discharge directly into a 5-tonne truck alongside. Zero residual stone after the combined passes. The drip irrigation installation team were complimentary about the site condition."
Song Hee-jun — Citrus Farm, Seogwipo, Jeju Island (2024)
★★★★★
"Annual Jeju basalt clearance is standard farm management here. The CT-2100 annual pass on our 18-hectare citrus block takes 4–5 days and picks up stones the old excavator bucket approach missed completely. Carbide tine wear in Jeju basalt is higher than mainland rock — I shorten the inspection interval accordingly. Korea team had tine sets available for next-day delivery when needed."
Roh Tae-yeong — Carrot Farm, Buan-gun, Jeollabuk-do (spring 2025)
★★★★★
"Carrots require zero stones for mechanical harvesting — any stone above 3–4 cm in the harvesting zone causes direct crop damage. Annual spring stone clearance across 22 hectares. THOR 2.4 on the heavier sections, CT-2100 full area. After two seasons, harvester maintenance costs are noticeably lower — direct result of cleaner seedbeds. The rubber stone guard matters for us because one field boundary is adjacent to a road."
Im Jae-seon — Stone Clearance Service Contractor, Naju, South Jeolla (2025)
★★★★★
"Running the CT-2100 as part of a contract stone clearance service across South Jeolla — garlic, onion, and cabbage farms in Naju and Haenam. I offer the THOR 2.4 crush + CT-2100 pick as a packaged service. Two seasons, reliable operation through the spring clearing window, no unexpected downtime. Good local support when I had a hydraulic question after the first season."
Ahn Byeong-tae — Golf Course Landscaping Contractor, Gyeonggi-do (2024)
★★★★★
"Golf course rough area preparation — complete surface stone removal before turf laying. The CT-2100's full-width rubber shield is safe to operate in confined landscaping site conditions where other contractors and vehicles are nearby. Cleared 6 hectares of rough area in 3 working days. The 2.5 m³ bunker capacity means fewer truck movements compared to smaller capacity pickers."
Tell Us Your Crop and Stone Type — We Confirm the Right Machine
Field area + stone density + crop type + tractor HP → specific recommendation in one business day. CT-2100 and all Watanabe implements in stock at trator-de-pedras.com, Ansan-si, Gyeonggi-do.
Informação adicional
| Editor | Cxm |
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