{"id":912,"date":"2026-06-01T07:48:32","date_gmt":"2026-06-01T07:48:32","guid":{"rendered":"https:\/\/rock-crusher-tractor.com\/?p=912"},"modified":"2026-06-01T07:48:32","modified_gmt":"2026-06-01T07:48:32","slug":"psw-3200-rotavator-korean-highland-deep-tillage-guide","status":"publish","type":"post","link":"https:\/\/rock-crusher-tractor.com\/zh\/psw-3200-rotavator-korean-highland-deep-tillage-guide\/","title":{"rendered":"PSW-3200\u65cb\u8015\u673a\u2014\u2014\u97e9\u56fd\u9ad8\u5730\u6df1\u8015\u6307\u5357"},"content":{"rendered":"
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PSW-3200<\/span>
\n140HP min<\/span>
\n\u00b7<\/span>
\n3.0\u20133.6m adjustable<\/span>
\n\u00b7<\/span>
\n540\/1000 \u8f6c\/\u5206<\/span>
\n\u00b7<\/span>
\n2\u7c7b<\/span><\/div>\n
\n

Tillage Machine Deep Dive \u00b7 Pillar Guide<\/p>\n

PSW-3200\u65cb\u8015\u673a\u2014\u2014\u97e9\u56fd\u9ad8\u5730\u6df1\u8015\u6307\u5357<\/h1>\n

The quality of every Korean highland crop begins not with the seed but with the seed bed. The PSW-3200 is the machine that converts stone-cleared granite soil into the uniform, deep, organic-rich seed bed that Grade 1 produce requires \u2014 and 540 RPM vs 1000 RPM is a decision that affects every pass you make.<\/p>\n

PSW-3200 Configuration Consultation<\/a><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Every Watanabe stone clearing operation \u2014 every THOR 2.4 fragmentation pass, every CT-2100 collection cycle \u2014 is preparation for one thing: the PSW-3200’s tillage pass that transforms fractured granite soil into a seed bed. The PSW-3200\u65cb\u8015\u673a<\/strong> is the machine that closes the gap between physical stone removal and agronomic productivity. It is the Korean highland farm’s most frequently used implement: not the dramatic first-season stone crusher pass, but the machine that runs before every planting, after every harvest, and through every lime incorporation cycle across the entire life of the farm.<\/p>\n

Despite this central role, the PSW-3200 is frequently under-specified \u2014 operated at the wrong PTO speed for the soil condition, set to the wrong width for the terrace geometry, or run at the wrong depth for the crop requirement. This guide covers the machine’s confirmed specifications, the engineering basis for the PTO speed decision, the width adjustment system, the double-pass protocol for post-stone-clearing Korean granite soil, and the annual service requirements. It is the single reference document for PSW-3200 operation across the full range of Korean highland applications.<\/p>\n

<\/p>\n

Confirmed PSW-3200 Specifications \u2014 What the Official Brochure States<\/h2>\n

All specifications are from the official Watanabe product brochure. No estimates are included \u2014 every figure is the manufacturer’s published value. The PSW-3200 is available in Korea through Korea Watanabe and holds Korean agricultural machinery certification.<\/p>\n

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140 \u60e0\u666e<\/span><\/div>\n
\u6700\u4f4e\u62d6\u62c9\u673a\u8981\u6c42<\/div>\n<\/div>\n
\n
3.0\u20133.6 \u7c73<\/span><\/div>\n
\u5de5\u4f5c\u5bbd\u5ea6\uff08\u53ef\u8c03\u8282\uff09<\/div>\n<\/div>\n
\n
540 \/ 1000 \u8f6c\u901f<\/span><\/div>\n
Both PTO speeds supported<\/div>\n<\/div>\n
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2\u7c7b<\/div>\n
Three-point hitch category<\/div>\n<\/div>\n
\n
20\u201330 cm<\/span><\/div>\n
Operating depth range (Korean highland)<\/div>\n<\/div>\n<\/div>\n

The width range of 3.0\u20133.6 m is a defining characteristic of the PSW-3200 for Korean highland use. Korean highland terraces vary significantly in bed width depending on the altitude, age of construction, and original terrace engineering. The PSW-3200’s adjustable width allows a single machine to cover terrace widths from 3.0 m (narrow mountain terrace) to 3.6 m (wider lower-altitude terrace) by adjusting the end-plate extension configuration \u2014 a critical practical advantage over fixed-width European rotavators that require separate machines for different terrace dimensions.<\/p>\n

<\/p>\n

540 RPM vs 1000 RPM \u2014 The Most Important Operating Decision on Every Pass<\/h2>\n

\"THOR<\/p>\n

The PSW-3200’s dual PTO speed capability (540 RPM and 1000 RPM) is not a choice between “slow” and “fast” \u2014 it is a choice between two fundamentally different tillage mechanisms that produce different soil outcomes. Understanding the engineering basis for each speed makes the correct selection obvious for every Korean highland application.<\/p>\n

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Rotavator Tine Tip Velocity \u2014 The Physics Behind PTO Speed Selection<\/p>\n

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At 540 RPM:<\/p>\n

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Angular velocity: 540 \u00d7 2\u03c0\/60 = 56.5 rad\/s<\/div>\n
Tip velocity (250mm radius): 56.5 \u00d7 0.25 = ~14.1 m\/s<\/strong><\/div>\n
Soil action: Cutting and lifting<\/strong> \u2014 tines cut through soil and lift residue without excessive pulverisation. Produces clods 10\u201330 mm. Less energy per unit area.<\/div>\n
Best for: organic matter incorporation, autumn lime-and-residue pass, initial tillage of clay-wet soil after harvest.<\/div>\n<\/div>\n<\/div>\n
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At 1000 RPM:<\/p>\n

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Angular velocity: 1000 \u00d7 2\u03c0\/60 = 104.7 rad\/s<\/div>\n
Tip velocity (250mm radius): 104.7 \u00d7 0.25 = ~26.2 m\/s<\/strong><\/div>\n
Soil action: Pulverising and mixing<\/strong> \u2014 high tine velocity fragments soil aggregates to 2\u20138 mm fine tilth. Produces the uniform seed bed that precision planting machines require.<\/div>\n
Best for: pre-planting seed bed preparation, ginseng 40cm fine-tilth pass, second pass after 540 RPM primary pass.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

The double-pass strategy \u2014 540 RPM first pass for incorporation and initial fragmentation, followed by 1000 RPM second pass for fine tilth \u2014 is Korea Watanabe’s recommended protocol for the post-stone-clearing seed bed preparation on Korean highland granite. The 540 RPM first pass at 22\u201325 cm depth incorporates surface-applied lime and organic material through the full tillage zone. The 1000 RPM second pass at 18\u201320 cm produces the fine-tilth surface layer that planting machines require for consistent depth performance. The two-pass approach is more fuel-intensive than a single 1000 RPM pass, but produces 30\u201340% finer seed bed texture at depth \u2014 a measurable difference in emergence uniformity.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
PTO Speed Selection Guide \u2014 Korean Highland PSW-3200 Application<\/caption>\n
\u5e94\u7528<\/th>\nPTO\u8f6c\u901f<\/th>\nWorking depth<\/th>\n\u539f\u56e0<\/th>\n<\/tr>\n<\/thead>\n
October lime + residue incorporation<\/td>\n540 \u8f6c\/\u5206<\/td>\n22\u201325 cm<\/td>\nMixes, does not pulverise \u2014 lime distributes through profile without excessive dust generation<\/td>\n<\/tr>\n
Spring fine-tilth pre-planting pass<\/td>\n1000 \u8f6c\/\u5206<\/td>\n18\u201320 \u5398\u7c73<\/td>\nProduces 2\u20138 mm fine tilth for consistent planting depth \u2014 EP-PAI-2100 requires this<\/td>\n<\/tr>\n
Post-THOR 2.4 first clearance pass<\/td>\n540 RPM first \u2192 1000 RPM second<\/td>\n25 cm \u2192 20 cm<\/td>\nDouble-pass: 540 RPM incorporates fragmented material, 1000 RPM creates seed bed<\/td>\n<\/tr>\n
Ginseng 40cm preparation (second pass)<\/td>\n1000 \u8f6c\/\u5206<\/td>\n25\u201330 cm<\/td>\nMaximum fine-tilth for ginseng root channel \u2014 1cm residual stone standard requires deepest fine-tilth pass<\/td>\n<\/tr>\n
Wet soil after heavy rain<\/td>\nDELAY \u2014 avoid operation<\/td>\n\u2014<\/td>\nBoth speeds compact wet Korean granite soil and produce compaction layer. Wait minimum 3 days after heavy rain before any PSW-3200 pass<\/td>\n<\/tr>\n
Cover crop green manure incorporation<\/td>\n540 \u8f6c\/\u5206<\/td>\n20\u201322 \u5398\u7c73<\/td>\nShreds and mixes biomass rather than over-fragmenting \u2014 preserves more organic carbon through incorporation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

Working Width Adjustment \u2014 How the 3.0m to 3.6m System Works in Practice<\/h2>\n

\"PSW-3200<\/p>\n

The 3.0\u20133.6 m working width range of the PSW-3200 is not a continuous adjustment \u2014 it is achieved by repositioning or adding end-plate extension panels at either side of the main rotor housing. Understanding the adjustment mechanism prevents the common field error of operating the machine at the wrong width setting for the terrace being worked.<\/p>\n

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Width Configuration Options \u2014 Top-Down Schematic View<\/p>\n

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3.0 \u7c73<\/div>\n
\n
\n
\u25cf<\/div>\n
<\/div>\n
\u25cf<\/div>\n<\/div>\n
Narrow highland terrace.<\/strong> End-plate extensions folded in or removed. Use for terraces 2.8\u20133.2 m bed width. Typical: steep altitude above 650 m, older terrace construction.<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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3.3 m<\/div>\n
\n
\n
|\u25cf|<\/div>\n
<\/div>\n
|\u25cf|<\/div>\n<\/div>\n
Intermediate width.<\/strong> Single end-plate panel on each side (first extension position). Most common Korean highland potato terrace configuration. Use for terraces 3.1\u20133.5 m bed width.<\/div>\n<\/div>\n<\/div>\n

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3.6\u7c73<\/div>\n
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\n
||\u25cf||<\/div>\n
<\/div>\n
||\u25cf||<\/div>\n<\/div>\n
Maximum width.<\/strong> Both end-plate panels extended on each side. Use for wider lower-altitude terraces (400\u2013550 m), large reclaimed field areas, and PSW-3200 passes on non-terrace highland plots above 3.4 m.<\/div>\n<\/div>\n<\/div>\n<\/div>\n

Width is set mechanically before field entry \u2014 do not attempt width adjustment during operation. Confirm the width setting matches the terrace bed dimension before engaging the PTO.<\/p>\n<\/div>\n

Width overlap principle:<\/strong> On consecutive tillage passes on the same field, use a 10\u201315 cm pass overlap \u2014 slightly wider than the end-plate boundary \u2014 to ensure no untilled strip is left at the terrace edge. An untilled edge strip produces a compaction ridge that resists the planting machine’s furrow-opening disc and creates variable planting depth at the row nearest the terrace edge. This edge strip effect is the most common cause of uneven emergence at the terrace margins on Korean highland potato fields.<\/p>\n

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The Tillage Quality Matrix \u2014 How Depth and Forward Speed Interact<\/h2>\n

Many Korean highland operators have learned from experience that deeper is not always better and slower is not always finer. The interaction between operating depth and forward speed determines the actual soil structure quality produced \u2014 and on Korean highland granite soil, these interactions are more pronounced than on the fine-textured soils for which most tillage guidance was written.<\/p>\n

<\/p>\n

\n\n\n\n\n\n\n\n
Tillage Quality Matrix \u2014 PSW-3200 at 1000 RPM on Korean Highland Granite Soil<\/caption>\n
Depth \\ Speed<\/th>\nSlow (1.0\u20131.5 km\/h)<\/th>\nMedium (2.0\u20132.5 km\/h)<\/th>\nFast (3.0+ km\/h)<\/th>\n<\/tr>\n<\/thead>\n
Shallow (15\u201318 cm)<\/td>\nUltra-fine. Over-worked surface. Risk of capping after rain. Not recommended for granite.<\/td>\n\u2705 OPTIMAL for ginseng surface pass and spring pre-plant fine-tilth<\/td>\nAcceptable. Surface-only improvement. Misses full seed bed depth requirement.<\/td>\n<\/tr>\n
Medium (20\u201324 cm)<\/td>\nGood mixing, slightly over-refined. Consider 540 RPM at this depth-speed combo for incorporation.<\/td>\n\u2705 BEST OVERALL. Balanced fine tilth to 22 cm. Recommended for most Korean highland potato pre-planting passes.<\/td>\nAcceptable throughput compromise. Produces 8\u201315 mm tilth rather than 2\u20138 mm. Fine for garlic and radish but borderline for potato.<\/td>\n<\/tr>\n
Deep (25\u201330 cm)<\/td>\n\u2705 BEST FOR GINSENG prep and forest land conversion second pass. Slow + deep = maximum disruption and fine tilth throughout.<\/td>\nGood for post-THOR 2.4 second pass on cleared fields. Leaves 10\u201320 mm tilth at depth.<\/td>\n\u274c Not recommended. At 25+ cm depth and 3 km\/h on granite, tines skip and produce irregular, ridged soil profile rather than uniform tilth.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The “sweet spot” for most Korean highland potato and root crop pre-planting passes is medium depth (20\u201324 cm) at medium speed (2.0\u20132.5 km\/h) at 1000 RPM. This combination covers approximately 0.7\u20130.9 ha per hour at the PSW-3200’s 3.6 m working width \u2014 equivalent to 5.6\u20137.2 ha per operating day, sufficient to prepare a 10 ha highland farm’s planting area within 1.5\u20132 operating days.<\/p>\n

<\/p>\n

Organic Matter Incorporation \u2014 Why the PSW-3200’s Depth Matters More Than the Organic Source<\/h2>\n

\"Korean<\/p>\n

The contribution of any organic material \u2014 crop residue, compost, legume biomass, lime \u2014 to the Korean highland soil’s productive capacity depends almost entirely on the depth at which it is incorporated. Surface-applied material that is not incorporated by the PSW-3200 affects only the top 3\u20135 cm of the soil profile and contributes minimal benefit to the 15\u201325 cm root zone where Korean highland potato, garlic, radish, and ginseng roots actually compete for moisture and nutrients.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Organic Material Incorporation \u2014 Effective Depth vs OM Contribution to Root Zone<\/caption>\n
Organic material<\/th>\nSurface-only (no PSW)<\/th>\nPSW 540 RPM at 22cm<\/th>\nPSW 1000 RPM at 20cm<\/th>\n<\/tr>\n<\/thead>\n
Agricultural lime (powdered)<\/td>\npH effect 0\u20135 cm only<\/td>\n\u2705 pH correction to 22 cm<\/td>\npH to 18 cm (slightly shallower)<\/td>\n<\/tr>\n
Compost (3 t\/ha broadcast)<\/td>\nOM benefit 0\u20134 cm only. Leaches slowly.<\/td>\n\u2705 OM distributed 0\u201322 cm. +0.3\u20130.4% OM\/year<\/td>\nOM to 18 cm. +0.2\u20130.3% OM\/year<\/td>\n<\/tr>\n
Red clover green manure<\/td>\nSurface mat. Slow decomp. N losses high.<\/td>\n\u2705 OPTIMAL. Biomass shredded and mixed through 22 cm. +0.4\u20130.6% OM. 150+ KgN\/ha released over 12 months.<\/td>\nBiomass over-fragmented at 1000 RPM \u2014 some N loss as ammonia. 540 RPM preferred for green manure.<\/td>\n<\/tr>\n
Potato haulm (post-harvest)<\/td>\nDisease reservoir. Pathogen carryover risk.<\/td>\n\u2705 Shreds and buries haulm. Accelerates decomposition. Reduces surface pathogen reservoir.<\/td>\nAcceptable. Slightly finer shredding than 540 RPM. Less depth penetration.<\/td>\n<\/tr>\n
Biochar (2 t\/ha broadcast)<\/td>\nBenefits restricted to top 3 cm. Windblown loss risk.<\/td>\n\u2705 Mixed through 22 cm. Full water retention and CEC benefit across root zone.<\/td>\nMixed to 18 cm. Acceptable but 540 RPM preferred for deeper biochar distribution.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The practical rule: any material broadcast after the DCW 2.2 lime spreader or compost application on the cleared field<\/a> should be incorporated by the PSW-3200 within 24 hours<\/strong> \u2014 before the next rain event redistributes the surface-applied material or allows volatilisation (for nitrogen-rich materials) to begin. The October post-harvest window is the optimal time for the combined lime + compost + haulm incorporation pass: the soil is moist from autumn rains, the temperature is still warm enough for microbial activity (8\u201312\u00b0C), and there is no frost risk for several weeks.<\/p>\n

<\/p>\n

The Double-Pass Protocol \u2014 When Two PSW-3200 Passes Outperform One<\/h2>\n

<\/p>\n

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Single Pass (1000 RPM, 22 cm) \u2014 Soil Profile Result<\/div>\n
\n
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0\u20138 cm: Fine tilth 2\u20135 mm \u2705<\/div>\n
8\u201316 cm: Coarser tilth 10\u201325 mm \u2014 variable<\/div>\n
16\u201322 cm: Partially worked \u2014 20\u201340 mm clods<\/div>\n
Below 22 cm: Untouched. Compaction pan risk at base of tillage zone.<\/div>\n<\/div>\n

Acceptable for garlic and radish (shallower root requirements). Borderline for Daejima potato (hollow heart from variable moisture zone at 16\u201322 cm). Not suitable for ginseng.<\/p>\n<\/div>\n<\/div>\n

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Double Pass (540 \u2192 1000 RPM) \u2014 Soil Profile Result \u2705<\/div>\n
\n
\n
0\u20138 cm: Ultra-fine tilth 1\u20133 mm \u2705\u2705<\/div>\n
8\u201316 cm: Fine tilth 3\u20138 mm \u2014 uniform \u2705<\/div>\n
16\u201322 cm: Fine tilth 5\u201312 mm \u2014 organic material mixed \u2705<\/div>\n
22\u201326 cm: Partially worked (540 RPM reach)<\/div>\n
Below 26 cm: Untouched subsoil<\/div>\n<\/div>\n

Recommended for: all potato production, ginseng preparation, certified seed fields, and any field where uniform emergence is the primary quality objective.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

The double-pass protocol adds approximately 50\u201370% to the total tillage fuel cost per hectare compared to a single 1000 RPM pass. On a 10 ha Korean highland farm, the additional cost is approximately 200,000\u2013350,000 KRW per full double-pass cycle. Against the Grade 1 proportion improvement measurable on Daejima and Dubaek variety crops from the uniform double-pass seed bed, this cost is recoverable from the improved grading outcome within the first production season.<\/p>\n

<\/p>\n

Annual Service Schedule \u2014 12 Months of PSW-3200 Maintenance<\/h2>\n

\"Korean<\/p>\n

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PSW-3200 Annual Service Calendar \u2014 Korean Highland Operating Season<\/div>\n

<\/p>\n

February\u2013March: Pre-Season Service<\/div>\n
\u2610<\/span><\/p>\n
Tine inspection \u2014 wear length and tip condition.<\/strong> Measure remaining tine length. Standard replacement threshold: below 85% of original length. On Korean highland granite, PSW-3200 tines typically reach replacement threshold after 150\u2013200 operating hours. A full set of worn tines produces 15\u201325 mm tilth rather than 3\u20138 mm \u2014 a deterioration that the operator often attributes to soil conditions rather than tine wear.<\/div>\n<\/div>\n
\u2610<\/span><\/p>\n
Gearbox oil level and condition.<\/strong> The central gearbox distributes drive to the rotor \u2014 oil level must be at the full mark before the first pass of the season. Oil colour and smell: milky or burnt oil indicates water ingress or overheating from the previous season. Full oil change at 300+ operating hours regardless of apparent condition.<\/div>\n<\/div>\n
\u2610<\/span><\/p>\n
Side panels and end-plate security.<\/strong> Check end-plate mounting bolts and extension panel attachment points. A loose end-plate at 1000 RPM operation can cause the panel to catch on soil and create a sudden lateral force on the PTO shaft. Torque all end-plate mounting bolts to specification before the first operating day.<\/div>\n<\/div>\n
\u2610<\/span><\/p>\n
Rear flap \/ crumbler roller condition.<\/strong> The rear flap or crumbler roller (depending on the PSW-3200 configuration) determines the final soil surface texture after the tine pass. A damaged or missing rear flap leaves the soil surface rough and ridged rather than levelled. Inspect and replace any damaged flap sections before pre-planting passes.<\/div>\n<\/div>\n
\u2610<\/span><\/p>\n
PTO shaft condition and guard.<\/strong> Check PTO shaft for straightness (a bent PTO shaft vibrates destructively at 1000 RPM), universal joint condition, and guard integrity. The PTO guard must be complete and secured at both the tractor end and the machine end \u2014 Korean highland PTO-related injuries most commonly occur during transport between fields when the guard is removed “for convenience.”<\/div>\n<\/div>\n

<\/p>\n

April\u2013September: Operating Season<\/div>\n
\u2610<\/span><\/p>\n
Weekly: tine condition visual check.<\/strong> After each operating day on Korean highland granite, visually inspect the full tine set for chipped or missing tine tips. Missing tines create rotor imbalance that accelerates bearing wear at a rate proportional to the square of the speed \u2014 at 1000 RPM, one missing tine causes 3\u20134\u00d7 the bearing stress of the same missing tine at 540 RPM. Replace immediately.<\/div>\n<\/div>\n
\u2610<\/span><\/p>\n
After every 50 hours: grease all nipples.<\/strong> The PSW-3200 has grease points at the rotor bearing housings (typically 4\u20136 points), the PTO shaft joints, and the end-plate pivot pins. Korean highland spring dust conditions (fine granite grit) penetrate unsealed bearings rapidly \u2014 over-greasing is safer than under-greasing on this machine in this environment.<\/div>\n<\/div>\n

<\/p>\n

October\u2013November: Post-Season Service and Storage<\/div>\n
\u2610<\/span><\/p>\n
Full wash-down and tine set inspection.<\/strong> Clean the full machine with water pressure before inspection. The October pass on Korean highland soil leaves the tine set in its most worn state after the season’s operations \u2014 measure remaining tine length and order replacement tine sets over winter for the following February pre-season service.<\/div>\n<\/div>\n
\u2610<\/span><\/p>\n
Gearbox oil change if above 200 operating hours this season.<\/strong> Drain warm (immediately after final operating day), refill with the specified grade. Korean highland gearbox oil degrades faster than manufacturer service intervals suggest due to the high shock load from granite tine contact \u2014 err toward more frequent oil changes rather than fewer.<\/div>\n<\/div>\n
\u2610<\/span><\/p>\n
Winter storage: raise machine off ground, protect tines from frost corrosion.<\/strong> Store the PSW-3200 in a covered location with tines slightly above ground level \u2014 resting the machine on its tines compresses the tine fasteners and accelerates thread wear. Apply anti-rust spray to all exposed tine bores. Remove the PTO shaft and store separately to prevent damage from frost expansion in the driveshaft tube.<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/h2>\n
\n
\nWhat is the best rotavator for Korean highland granite soil \u2014 is the PSW-3200 superior to European alternatives?<\/summary>\n

The PSW-3200’s primary advantage for Korean highland use is not mechanical superiority over European equivalents per se \u2014 it is dimensional compatibility. European rotavators in the equivalent HP class are typically fixed at widths of 2.5 m or 3.0 m. Korean highland terraces require widths that vary across the farm from 3.0 to 3.6 m. A fixed-width European machine at 3.0 m leaves 0.3\u20130.6 m of untilled terrace edge on wider terraces; at 3.6 m, it operates beyond the terrace boundary on narrower terraces, disturbing terrace edges. The PSW-3200’s 3.0\u20133.6 m adjustable width solves this terrace-specific problem. For the mechanical tillage quality itself \u2014 tine geometry, PTO power uptake, soil finish \u2014 the PSW-3200 performs comparably to equivalent European machines at the same operating conditions on Korean highland granite. The dimensional compatibility is the decisive factor for Korean highland terrace farming.<\/p>\n<\/details>\n

\nHow deep should the PSW-3200 rotavator work on a Korean highland field after THOR 2.4 stone clearing?<\/summary>\n

The recommended sequence after THOR 2.4 stone clearing and CT-2100 collection is: first PSW-3200 pass at 22\u201325 cm depth at 540 RPM (incorporating lime and any surface organic material applied after clearing), followed 3\u20135 days later by a second pass at 18\u201320 cm at 1000 RPM (producing the fine-tilth seed bed for planting). The first pass at 22\u201325 cm is deeper than the standard agricultural tillage depth specifically because the THOR 2.4 clearing has created a stone-free zone at this depth that previously prevented PSW-3200 operation below 15\u201318 cm. The first post-clearing season is the opportunity to establish a deep, well-mixed root zone that will benefit the crop for years \u2014 subsequent annual passes can revert to the 18\u201320 cm standard depth.<\/p>\n<\/details>\n

\nCan the PSW-3200 work on a slope above 15% without the Kit Drawbar that the THOR 2.4 uses on slopes?<\/summary>\n

The PSW-3200 does not have an equivalent of the THOR 2.4’s Kit Drawbar slope mode \u2014 it operates as a standard rear three-point mounted implement in all configurations. On Korean highland slopes above 15%, the PSW-3200’s operation requires additional consideration because the machine’s weight on the rear linkage reduces front-axle steering effectiveness on ascending passes (the same risk as any heavy rear-mounted implement on steep terrain). Korea Watanabe’s recommendation for PSW-3200 operation above 15% gradient: (1) ensure the tractor has at least 140 HP and adequate front ballast for slope operation; (2) make all passes in the upslope direction whenever possible, avoiding cross-slope passes on gradients above 12%; (3) reduce operating depth on steep sections to reduce the draft force and associated rear-linkage load; (4) keep PTO speed at 540 RPM on first passes on steep slopes to reduce the gyroscopic effect of the spinning rotor on slope stability. The PSW-3200 is routinely operated on Korean highland slopes in the 12\u201318% range without incident when these protocols are observed.<\/p>\n<\/details>\n

\nHow long do PSW-3200 tines last on Korean highland granite \u2014 and what is the replacement cost per hectare?<\/summary>\n

PSW-3200 tines on Korean highland granite typically reach the 85% remaining-length replacement threshold after 150\u2013200 operating hours. On a 10 ha Korean highland farm with 3 PSW-3200 passes per year (October lime incorporation, spring fine-tilth, and one mid-season pass), the machine accumulates approximately 30\u201345 operating hours per season \u2014 meaning a full tine set replacement approximately every 4\u20136 seasons. The cost of a full PSW-3200 tine set should be confirmed with Korea Watanabe for current pricing, as tine costs vary with steel market pricing. The annualised tine cost per hectare is typically one of the smallest cost line items in the Korean highland farm operating budget \u2014 significantly less than the fuel cost for the same operational passes. The more important service parameter is replacing individual tines that reach critical wear before the full set \u2014 the balance and tillage quality deterioration from heavily worn individual tines exceeds the replacement cost of acting promptly.<\/p>\n<\/details>\n

\nDoes the PSW-3200 qualify for the Korean agricultural machinery subsidy, and what is the net purchase price after subsidy?<\/summary>\n

Yes \u2014 the PSW-3200 holds Korean agricultural machinery certification and qualifies for the MAFRA agricultural machinery purchase support programme. The subsidy rate for tillage machinery (the category under which the PSW-3200 is classified) is typically 30\u201340% of the certified purchase price in the 2025\u20132026 programme cycle. The exact 2026 rate for your specific county should be confirmed with Korea Watanabe during the January application preparation process. As a Stage 2 purchase in the recommended 3-year combined purchase strategy (following Stage 1’s THOR 2.4 + CT-2100 \u578b\u6361\u77f3\u673a<\/a> acquisition), the PSW-3200 is typically funded primarily from Year 1’s cleared-field revenue improvement \u2014 meaning the net cost after subsidy can often be met without additional borrowing from the farm’s existing cash flow. Korea Watanabe provides a combined Stage 1 + Stage 2 financial planning review at the initial consultation stage for any customer considering the full system build-out.<\/p>\n<\/details>\n<\/div>\n

<\/p>\n

\n

PSW-3200 Configuration for Your Korean Highland Farm<\/p>\n

Farm area + terrace width range + current tractor HP + crop sequence \u2192 Korea Watanabe confirms the correct tillage machinery<\/a> width configuration, PTO speed protocol, double-pass schedule and service calendar for your specific farm system.<\/p>\n

Configure My PSW-3200 System<\/a><\/p>\n<\/div>\n

\u7f16\u8f91\uff1aCxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

PSW-3200 140HP min \u00b7 3.0\u20133.6m adjustable \u00b7 540 \/ 1000 RPM \u00b7 Cat. 2 Tillage Machine Deep Dive \u00b7 Pillar Guide PSW-3200 Rotavator \u2014 Korean Highland Deep Tillage Guide The quality of every Korean highland crop begins not with the seed but with the seed bed. The PSW-3200 is the machine that converts stone-cleared granite […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[31],"tags":[],"class_list":["post-912","post","type-post","status-publish","format-standard","hentry","category-application-and-technical-guid"],"_links":{"self":[{"href":"https:\/\/rock-crusher-tractor.com\/zh\/wp-json\/wp\/v2\/posts\/912","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rock-crusher-tractor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rock-crusher-tractor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rock-crusher-tractor.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rock-crusher-tractor.com\/zh\/wp-json\/wp\/v2\/comments?post=912"}],"version-history":[{"count":2,"href":"https:\/\/rock-crusher-tractor.com\/zh\/wp-json\/wp\/v2\/posts\/912\/revisions"}],"predecessor-version":[{"id":914,"href":"https:\/\/rock-crusher-tractor.com\/zh\/wp-json\/wp\/v2\/posts\/912\/revisions\/914"}],"wp:attachment":[{"href":"https:\/\/rock-crusher-tractor.com\/zh\/wp-json\/wp\/v2\/media?parent=912"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rock-crusher-tractor.com\/zh\/wp-json\/wp\/v2\/categories?post=912"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rock-crusher-tractor.com\/zh\/wp-json\/wp\/v2\/tags?post=912"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}