Riduttore serie XL per macchine agricole

XL Series — 24-Model Gearbox Range for Agricultural Machinery

The XL Series is a comprehensive riduttore della presa di forza platform covering 24 distinct models, each designed for a specific class of agricultural machinery application. Rather than offering a single general-purpose gearbox and leaving operators to adapt it, the XL Series provides purpose-matched configurations — standard right-angle drives (XL-010, XL-012, XL-022), compact designs for space-constrained implements (XL-S-8, XL-S-9, XL-S-020), inverted-mount units for bottom-drive applications (XL-080-INV, XL-101-INV), and compound-ratio assemblies that combine two gear stages in a single housing (XL-010.012, XL-010.010, XL-022.010).

This modular approach means Korean equipment manufacturers can select a gearbox that matches their implement's specific mounting interface, power demand, speed ratio, and shaft orientation without custom engineering. The XL-2 serves as the entry-level standard drive, while the XL-150 handles heavy continuous-duty applications. Flange-mount variants (XL-014-FL) provide direct bolt-on installation for implements that cannot accommodate pedestal-mounted gearboxes. The VT-030 and F.T.I.1500 round out the range for specialized industrial-agricultural crossover applications requiring non-standard ratios or mounting configurations.

Korean implement dealers, OEM manufacturers in Cheonan, Daegu, and Gimhae industrial zones, and farm equipment service workshops stock the distributore agricolo XL Series as both production components and field replacement units. The standardized housing dimensions and shaft interfaces across the series simplify inventory management — a service truck carrying five XL models can address the gearbox needs of most PTO-driven implements encountered in Korean farming operations.

 

Complete XL Series Model Catalog

All 24 models organized by configuration type. Each model is engineered for specific mounting orientations, power classes, and implement requirements.

How the XL Series Covers Every PTO Drive Requirement

Standard Right-Angle Power Transfer

The core XL models (XL-010, XL-012, XL-022, XL-014, XL-082) convert horizontal PTO rotation to vertical or perpendicular output through a bevel gear pair at 90 degrees. The tractor PTO delivers 540 or 1000 RPM through a spline-coupled input shaft, and the bevel gear pair redirects this power while simultaneously changing speed according to the model's fixed ratio. This right-angle configuration is the most common requirement in agricultural implements — rotary tillers, mowers, feed mixers, and material spreaders all need vertical shaft drive from a horizontal PTO source.

Compound-Ratio Two-Stage Design

The compound models (XL-010.012, XL-010.010, XL-022.010) combine two XL standard gearboxes into a single integrated housing. The first stage performs the initial speed change and direction change; the second stage provides an additional reduction or direction change. This dual-stage approach achieves overall ratios that single-stage bevel gears cannot reach — high-reduction outputs for slow-speed, high-torque applications like heavy auger drives, large-diameter mixers, and slow-rotation composting drum drives that require overall ratios of 4:1 or greater.

Inverted-Mount Configuration

The XL-080-INV and XL-101-INV are physically identical to their standard counterparts but designed for inverted (upside-down) mounting. Implements where the gearbox hangs below the frame — certain conveyor drives, bottom-mounted cutter heads, and underbelly-mounted processing equipment — need inverted housing to maintain correct oil level coverage of the gear set and bearings. The inverted models have repositioned oil level plugs, drain plugs, and breather vents to function correctly in the flipped orientation. Mounting a standard gearbox upside-down without these modifications causes oil starvation at the upper bearings and oil flooding through the shaft seals.

Standard vs. Heavy-Duty XL Models — Selecting the Right Class

Choosing between the standard-class (XL-010 through XL-022) and heavy-duty class (XL-080 through XL-150) determines cost, weight, and service life. Overspecifying wastes budget; underspecifying causes premature failure.

For Korean farming operations, the dividing line typically falls at the 40-50 HP tractor class. Implements pulled by compact Korean tractors (Kukje, Daedong, TYM models under 45 HP) match the standard XL models. Implements pulled by mid-size and large tractors (50-120 HP Kubota, John Deere, New Holland models common on Korean commercial farms) require the heavy-duty class to achieve full service life without premature bearing or gear failure.

Applicazioni delle attrezzature agricole coreane

• ⚙ OEM Implement Manufacturing — Korean agricultural equipment manufacturers in the Cheonan-Asan industrial corridor and the Gimhae machinery zone use XL Series gearboxes as standard components in new implement designs. The 24-model range eliminates custom gearbox engineering: the manufacturer selects the XL model that matches their implement's power class, mounting interface, and ratio requirement, then designs the implement frame around the XL housing dimensions. This approach reduces development time from months to weeks and provides a tested, proven gear set rather than an untested custom design.
• ⚙ Field Replacement Service — Agricultural equipment service workshops across Korean farming regions stock XL Series gearboxes for in-field replacement when original equipment gearboxes fail during critical seasonal operations. The standardized shaft splines and mounting dimensions allow XL models to replace many OEM gearboxes from various manufacturers, reducing the downtime that occurs when waiting for specific OEM replacement parts to arrive from overseas suppliers.
• ⚙ Custom Machinery Fabrication — Korean agricultural innovators and small-batch machinery builders use XL Series gearboxes in custom-built equipment for specialized crops (ginseng cultivation equipment, greenhouse automation, mushroom facility mechanization) where off-the-shelf implements do not exist. The wide range of mounting styles and configurations gives fabricators the flexibility to integrate proven riduttore PTO drives into equipment designs that were previously limited to belt-and-pulley or chain-drive transmission.

Material and Construction Standards

Cast Iron Housing Across All Models

Every XL model uses GG25 grade cast iron housing — the same material grade regardless of whether the gearbox is the 8 kg XL-S-8 compact unit or the 45 kg XL-150 heavy-duty drive. Cast iron provides three properties that no alternative housing material matches simultaneously for agricultural gearboxes: vibration damping that prevents gear noise transmission to the implement frame, thermal conductivity that removes heat from the gear mesh zone, and corrosion resistance that tolerates the moisture, fertilizer residue, and soil acid exposure that agricultural environments produce.

Hardened Steel Spiral Bevel Gears

The spiral bevel gear sets in all XL models are manufactured from carburized alloy steel with tooth surface hardness of HRC 58-62. Spiral bevel geometry (as opposed to straight bevel) provides gradual tooth engagement — each tooth enters the mesh progressively rather than all at once, reducing impact loading and gear noise. This is particularly important for the heavy-duty XL-080 through XL-150 models where tooth loading is high enough that straight bevel gears would produce unacceptable noise and accelerated pitting wear at the tooth surface.

Cuscinetti a rulli conici

All XL models use tapered roller bearings at every shaft support position. Tapered roller bearings handle the combined radial and axial (thrust) loads that spiral bevel gears generate — a requirement that ball bearings cannot reliably meet under the shock loading conditions of agricultural operation. The bearing preload is factory-set to the correct specification for each model, ensuring proper gear mesh clearance from initial installation without field adjustment.

Maintenance Protocol for XL Series Gearboxes

All 24 XL models follow the same fundamental maintenance schedule, with interval adjustments based on duty severity.

• ▸ Pre-season inspection — Check oil level through the level plug. Verify all mounting bolts are torqued to specification. Rotate the input shaft by hand to confirm smooth gear engagement without binding or roughness. Inspect shaft seals for weeping or dried oil residue that indicates past leakage.
• ▸ First 50 hours (break-in) — Drain and refill oil after initial 50 operating hours. Inspect drain plug magnet for metallic particles. Fine silver-colored particles are normal break-in wear; coarse dark particles or brass-colored debris indicate potential bearing or gear damage requiring immediate investigation.
• ▸ Ogni 500 ore o annualmente — Complete oil change with SAE 80W-90 GL-5 gear oil. For heavy-duty models (XL-080 and above) operating continuously, reduce interval to 300 hours. Check breather vent for blockage that can pressurize the housing and force oil past seals.
• ▸ Every 1,500 hours — Inspect bearing preload by checking input and output shaft end-play. Measurable play indicates bearing wear requiring professional adjustment or replacement. For compound models (XL-010.012 series), check both stage bearings independently.

Pair With Drive Components

Every XL model connects to the tractor through a albero cardanico matched to the gearbox's power class and input shaft spline profile. For the compound models, confirm that the PTO shaft's overrun clutch or shear bolt protection matches the gearbox's torque rating — compound models produce very high output torque, and the PTO shaft protection must match to prevent damage in overload situations.

Il nostro completo distributore agricolo catalog includes the XL Series alongside dedicated implement gearboxes, parallel drives, and application-specific models. Browse the complete collection for all available configurations.

Domande frequenti

How do I select the right XL model for my implement?
Start with three parameters: required power (HP), shaft orientation (standard or inverted), and whether you need single-stage or compound ratio. The power rating determines standard vs. heavy-duty class. Shaft orientation selects standard or INV variant. If overall ratio exceeds approximately 3:1, a compound model is needed. Contact our engineering team with your implement specifications for model confirmation.

Can XL Series gearboxes replace OEM gearboxes from other manufacturers?
In many cases, yes. The XL Series uses industry-standard PTO spline connections (1-3/8 inch 6-spline and 1-3/4 inch 6-spline). If the original gearbox housing dimensions and shaft positions are similar, an XL model can be adapted with minor mounting bracket modifications. Our technical team can review your original gearbox specifications and recommend the closest XL match.

What is the difference between the S-Series and standard models?
The S-Series (XL-S-8, XL-S-9, XL-S-020) uses a smaller housing envelope for the same shaft interface. They are designed for implements where space is limited — specifically implements where the distance between the PTO connection and the driven mechanism is constrained. The S-Series handles lower power ratings than equivalent standard models due to the smaller gear set and reduced oil capacity.

Why are compound models recommended over using two separate gearboxes in series?
Compound XL models (XL-010.012, XL-010.010, XL-022.010) integrate both stages in a single oil bath with shared bearings at the intermediate shaft. Two separate gearboxes in series require an intermediate coupling, separate oil fills, independent mounting, and produce alignment challenges at the coupling. The compound unit eliminates these issues while providing a more compact overall package.

Are replacement gear sets available for field rebuild?
Yes. Individual gear pairs, bearing kits, seal kits, and complete internal assemblies are available for all 24 XL models. For high-use OEM applications, stocking one complete internal assembly per model on site allows gearbox rebuild in the field within 2-3 hours rather than waiting for a complete replacement unit.

Industry Feedback

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Park Dong-hyun, Equipment Manufacturer — Cheonan, Chungcheongnam-do, March 2025

"We use XL-012 and XL-080 across three different implement product lines. Having one gearbox supplier covering both our compact and heavy-duty ranges simplifies our BOM management enormously. The standardized mounting dimensions mean our frame jigs work for both models with only bolt pattern changes."

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Baek Seo-yun, Agricultural Service Center — Gimhae, Gyeongsangnam-do, January 2025

"Stocking 6 XL models covers about 80% of the gearbox replacement calls we get from local farms. The standard spline connections fit most Korean and imported implements. Farmers appreciate same-day repair instead of waiting 2-3 weeks for OEM parts from Italy or Japan."

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Oh Jun-seo, Custom Machinery Builder — Buyeo, Chungcheongnam-do, November 2024

"Built a custom ginseng root processing machine using the XL-010.012 compound gearbox. Needed a 5:1 overall reduction from PTO speed to the processing drum. The compound model delivered the ratio in one unit — no alignment issues, no intermediate coupling. The machine has processed 8 tons of ginseng root without a single gearbox issue."

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Im Ha-na, Rice Farm Equipment Dealer — Iksan, Jeollabuk-do, August 2024

"The inverted models (XL-080-INV) solved a persistent problem with bottom-mounted paddy field equipment. Standard gearboxes mounted upside-down were leaking oil and failing prematurely. The INV model's relocated plugs and seals eliminated the issue completely. Sold 25 units in the first season."

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Hwang Tae-min, Agricultural Cooperative Equipment Manager — Nonsan, Chungcheongnam-do, June 2024

"Our cooperative manages 40+ implements across 8 member farms. Standardizing on XL Series gearboxes reduced our spare parts inventory from 15 different gearbox brands to one family. Maintenance training for our field technicians simplified as well — one set of procedures, one oil specification, one seal kit system."