ロータリーカッター用PTOギアボックス EP-RC61T | マルチレシオ 60 HP

The EP-RC61T is a multi-ratio rotary cutter PTO gearbox offering 1:1, 1:1.21, 1:1.46, and 1:1.93 gear configurations. Rated at 60 HP with 540 RPM input, it features a 1 3/8 inch 6-spline input and output shaft, weighing 33.5 kg. Designed for rotary cutters, brush hogs, and vegetation management equipment. ISO-certified, 12-month warranty.

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Rotary Cutter PTO Gearbox Overview

The EP-RC61T is a versatile rotary cutter PTO gearbox built for brush hog and rotary cutter applications requiring up to 60 HP of PTO input power. What distinguishes this PTOギアボックス from single-ratio units is its availability in four gear configurations — 1:1, 1:1.21, 1:1.46, and 1:1.93 — achieved through different tooth count combinations on the spiral bevel gear pair. This allows operators and equipment manufacturers to match the gearbox output speed precisely to their specific cutter head design and vegetation conditions. At 540 RPM input, the four ratio options deliver output speeds ranging from 540 RPM (direct drive) up to approximately 1,042 RPM (at 1:1.93), covering the full range that standard rotary cutters need for grass, brush, and light timber clearing.

Rotary cutter pto gearbox rc61t product-1

PTOギアボックス weighs 33.5 kg — a mid-weight category that reflects the 60 HP power rating and the heavy-gauge cast iron housing required for rotary cutter service. Both input and output shafts use a 1 3/8-inch, 6-spline (Z6) connection, which is the standard PTO interface across virtually all トラクターPTOギアボックス applications in the 30-75 HP range. This standardization means the EP-RC61T can be fitted to a wide variety of rotary cutter brands and PTOギアボックス configurations and models with minimal or no modification.

技術仕様

Complete specification data for the EP-RC61T PTOギアボックス. The four ratio options use different gear tooth combinations (shown below) while sharing the same housing, bearings, and shaft dimensions.

rotary-cutter-pto-gearbox-rc61t-detail-combo-1

パラメータ Value
モデル RC61T Rotary Cutter Gearbox
比率オプション 1:1 / 1:1.21 / 1:1.46 / 1:1.93
Teeth Combinations 16/16, 17/14, 19/13, 27/14
モジュール 7.0 / 7.0 / 7.0 / 5.5
定格電力 60馬力
Rated Input Speed 540回転/分
Input / Output Shaft 1 3/8" Z6 / 1 3/8" Z6 Spline
Weight (Net) 33.5 kg

Core Advantages

Four Ratio Options
Choose from 1:1, 1:1.21, 1:1.46, or 1:1.93 to match your specific cutter head design. One gearbox platform, four speed configurations — simplifies inventory for dealers and fleet operators.
60 HP Rating
Handles the power output of mid-range utility tractors commonly used for rotary cutting in Korea and Southeast Asia. Adequate margin for heavy brush and light tree clearing up to 50 mm stem diameter.
Standard Spline Interface
Both input and output use the universal 1 3/8-inch, 6-spline (Z6) connection. Compatible with virtually all standard PTO shafts and rotary cutter input drives without adapters.
Factory-Direct Value
Priced well below OEM equivalents while maintaining the same shaft specifications, torque capacity, and material grades. Volume pricing available for agricultural cooperatives and equipment dealers.

Ratio Selection Guide

Choosing the correct ratio depends on your cutter blade design, target tip speed, and the type of vegetation you cut most frequently. Here is a practical breakdown:

rotary-cutter-pto-gearbox-rc61t-product-combo-1

  • 1:1 (16/16 teeth) — Direct drive. Output matches the 540 RPM PTO input. Best for heavy-duty stump cutting and thick brush where maximum torque at the blade is more important than tip speed.
  • 1:1.21 (17/14 teeth) — Slight speed increase to ~653 RPM. Good general-purpose ratio for mixed grass and light brush conditions where a small boost in blade speed improves cut quality.
  • 1:1.46 (19/13 teeth) — Medium increase to ~788 RPM. Popular for dedicated grass and weed cutting rotary cutters where cleaner cuts at higher blade speed are preferred over raw torque.
  • 1:1.93 (27/14 teeth) — Highest speed at ~1,042 RPM. Designed for light-duty rotary cutters and finish mowers where maximum blade speed produces the smoothest cut surface. Note: this ratio uses a smaller 5.5 module gear versus 7.0 on the other options.

Typical Applications

Pasture Rotary Cutting

Standard rotary cutters (brush hogs) on livestock farms use this PTOギアボックス to maintain pastures, clear field borders, and manage fallow land. The 1:1.21 or 1:1.46 ratios are most commonly selected for this work, providing the balance of speed and torque needed for mixed grass and light weed conditions on Korean farms.

Roadside and Utility Right-of-Way Clearing

Municipal and utility maintenance crews use heavier rotary cutters with the 1:1 ratio for clearing brush, saplings, and overgrown vegetation along roads, power line corridors, and drainage channels. The 60 HP rating handles the intermittent heavy loads that occur when the blade contacts thick stems or hidden debris.

PTO gearbox rotary cutter field use

Orchard and Vineyard Floor Maintenance

Smaller rotary cutters mounted on compact tractors use the 1:1.46 or 1:1.93 ratios for inter-row mowing in orchards and vineyards. The higher blade speed produces a cleaner cut on the grass and cover crops growing between tree or vine rows, reducing the need for additional trimming.

関連製品

 

Rotary cutters work hard on driveshafts. The intermittent shock loads from blade impacts require a PTO shaft with adequate torque rating, properly functioning slip clutch or shear bolt protection, and a full-length safety guard. Korea Ever-Power supplies matched PTO shafts and a complete range of 農業用ギアボックス for every type of rotary cutting equipment.

PTO gearbox and shaft for rotary cutter

よくある質問

What ratio should I choose for general brush cutting?
For mixed grass and brush, the 1:1.21 or 1:1.46 ratios are the most popular choices. They provide a good balance between blade speed (for clean cutting) and torque (for powering through thicker stems without stalling the PTO).
Can I change the ratio after purchase?
The ratio is determined by the gear pair installed at the factory. Swapping ratios requires replacing both the input and output gears. It is more practical to order the correct ratio upfront — contact our team to discuss your application before ordering.
Is this PTO gearbox compatible with my rotary cutter?
The EP-RC61T fits rotary cutters that use a 1 3/8-inch, 6-spline input and output. This is the most common interface in the 30-75 HP range. Check your current gearbox nameplate or measure the shaft splines to confirm.
What is the maximum tractor HP this gearbox can handle?
60 HP at the PTO. If your tractor exceeds this, the PTOギアボックス may be overloaded during heavy cutting. Step up to a larger frame gearbox for 70+ HP applications.
How often does the oil need changing?
First change at 50 hours, then every 500 hours or annually. Use SAE 80W-90 gear oil.
Where can I buy this rotary cutter PTO gearbox?
Korea Ever-Power stocks all four ratio options in our domestic warehouse. See availability at our PTO gearbox catalogue.

Customer Reviews

Kwon Seung-min, Cattle Farmer, Jeollanam-do (spring 2025)
"Bought the 1:1.46 ratio for our 45 HP Kukje tractor and 5-foot rotary cutter. Cuts through our pasture grass and mixed weeds with no trouble. About 100 hours on it, runs smooth, no leaks. Good value compared to the dealer's gearbox price."
Na Dong-jin, Municipal Vegetation Crew, Gyeonggi-do (autumn 2024)
"We use the 1:1 direct drive ratio on our heavy-duty rotary cutter for roadside brush clearing. Handles saplings up to about 40 mm without stalling. The 60 HP rating matches our tractor well. Had it about 8 months now with no complaints."
Yun Ji-hye, Grape Vineyard Manager, Gyeongsangbuk-do (summer 2025)
"The 1:1.93 ratio gives a really clean cut on the grass between our vine rows. Much smoother finish than the old 1:1 gearbox we had before. Blade speed makes a big difference for finish quality."
Baek Jun-ho, Agricultural Equipment Dealer, Cheonan (early 2025)
"Having four ratio options in one platform is convenient for stocking. I can serve different customer needs without maintaining four completely different gearbox lines. Sales have been steady, no warranty issues in about 30 units sold."
Moon Sang-hee, Contract Land Clearing, Chungcheongbuk-do (late 2024)
"I do land clearing contracts for construction sites and new farm plots. The 1:1.21 ratio on a 55 HP tractor handles most vegetation we encounter — grass, weeds, small brush. Gearbox weighs 33.5 kg, which is about right for the 5-foot cutter we run."

Packing and Shipping

PTO gearbox packing and shipping

追加情報

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