Premium PTO Gearbox Solutions for Agriculture, Truck & Industrial Applications

ISO 500 compliant power take-off gearboxes engineered for 540/1000 RPM PTO systems. Trusted by OEM partners across 50+ countries. Korea-based precision manufacturing with global delivery.

βœ“ ISO 9001 Certified βœ“ CE Marked βœ“ SGS Verified βœ“ Made in Korea
15+
Years Experience
50+
Countries Served
100K+
Units Delivered
500+
OEM Partners

Latest PTO Gearbox Products

High-performance aftermarket replacement PTO gearboxes β€” fully interchangeable with OEM specifications

Flail Mower PTO Gearbox T-310A 1:3 Ratio
Flail Mower

Flail Mower PTO Gearbox T-310A 1:3 Ratio Replacement

Heavy-duty replacement for flail mowers. 1:3 ratio, cast iron housing, 540 RPM input, ISO 500 spline.

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Agricultural PTO Gearbox for Fertilizer Spreaders Comer L-25J
Fertilizer Spreader

Agricultural PTO Gearbox for Fertilizer Spreaders – Comer L-25J Replacement

Direct replacement for Comer L-25J. Bevel gear design, precision-matched for drop-in installation.

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Round Baler PTO Gearbox T-304A 1:3 Ratio Heavy Duty
Round Baler

Round Baler PTO Gearbox T-304A 1:3 Ratio Heavy Duty

Heavy-duty for round balers. 1:3 ratio, high-torque design with reinforced bearings.

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Rotary Cutter PTO Gearbox EP-RC61T Multi-Ratio 60 HP
Rotary Cutter

Rotary Cutter PTO Gearbox EP-RC61T Multi-Ratio 60 HP

Multi-ratio rotary cutter gearbox rated at 60 HP. Versatile speed configurations.

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Agricultural Sprayer PTO Gearbox Comer D-7A D-7B Replacement
Sprayer

Agricultural Sprayer PTO Gearbox – Comer D-7A & D-7B Replacement

Drop-in replacement for Comer D-7A/D-7B. Consistent pump speed for uniform spray.

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Rotary Cutter PTO Gearbox Omni Gear RC-33 Replacement
Rotary Cutter

Rotary Cutter PTO Gearbox – Omni Gear RC-33 Replacement

Aftermarket replacement for Omni Gear RC-33. Fully interchangeable mounting and shaft.

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Rotary Mower PTO Gearbox Comer LF-140J Replacement
Rotary Mower

Rotary Mower PTO Gearbox – Comer LF-140J Replacement

Direct replacement for Comer LF-140J. Hardened bevel gears, extended bearing life.

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Rotary Mower PTO Gearbox Comer LF-205J Replacement
Rotary Mower

Rotary Mower PTO Gearbox – Comer LF-205J Replacement

Heavy-duty replacement for Comer LF-205J. Increased torque and heat dissipation.

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Flail Mower PTO Gearbox Comer L-25J Replacement
Flail Mower

Flail Mower PTO Gearbox – Comer L-25J Replacement

Aftermarket replacement for Comer L-25J. Drop-in compatible bolt pattern and shaft.

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PTO Gearbox Structure & Working Principle

Understanding the core engineering behind every power take-off gearbox we manufacture

PTO gearbox internal structure diagram

A PTO gearbox (Power Take-Off gearbox) is a precision mechanical transmission device that transfers rotational power from a prime mover β€” such as a tractor engine, truck transmission, or stationary motor β€” to auxiliary equipment through a standardized splined shaft. It performs speed conversion, directional change (typically 90Β°), and torque multiplication.

Every gearbox uses precision gear trains β€” spur, helical, spiral bevel, worm, and planetary β€” selected per load, speed, and environment. Our PTO inputs comply with ISO 500: Type 1 (540 RPM, 6-spline, Ø35mm) and Type 2/3 (1000 RPM, 21-spline).

Key Components of Our PTO Gearbox Design

PTO gearbox exploded component view

Input Shaft

Material: 20CrMnTi Β· Hardness: HRC 58-62 Β· Spline: 6/21-spline Β· Standard: ISO 500

Gear Train

Types: Spur/Helical/Bevel/Worm/Planetary Β· Process: CNC+carburizing+grinding Β· Precision: DIN 6-7

Output Shaft

Connection: SAE/Spline/Keyed Β· Speed: 540~3,000 RPM Β· Torque: Up to 5,000 NΒ·m

Housing

Material: Cast/Ductile iron/Aluminum Β· Protection: IP54~IP65 Β· Finish: Powder coated

Bearings

Types: Ball/Tapered roller Β· Life: 20,000+ hours Β· Lubrication: Grease/oil bath

Seals & Safety

Seals: NBR/FKM Β· Temp: -30~+120Β°C Β· Safety: Shear bolt/Slip clutch

PTO Gearbox Technical Specifications

ParameterRangeNotes
Input Speed540 / 1000 RPMISO 500
Output Speed540~3,000 RPMApplication-dependent
Power10~200 HPContinuous duty
Torque50~5,000 NΒ·mAt rated input
Ratio1:1~1:100Custom available
Gear TypeSpur/Helical/Bevel/Worm/PlanetaryPer application
HousingCast Iron / Ductile / AluminumPer load
Input Shaft6-spline Ø35 / 21-splineISO 500
SealingIP54~IP65NBR/FKM
MountingSAE/2-Bolt/4-Bolt/CustomOEM configs

Need custom specs? Contact our engineering team β†’

PTO Gearbox Applications Across Industries

Our power take-off gearboxes serve diverse sectors worldwide

PTO gearbox for Agriculture Farming

Agriculture & Farming

Rotary tillers, cutters, post hole diggers, fertilizer spreaders, feed mixers, hay rakes, manure pumps. 540/1000 RPM, 15-80 HP.

PTO gearbox for Construction Infrastructure

Construction & Infrastructure

Concrete pumps, dewatering, compaction, hydraulic cranes. Up to 5,000 NΒ·m torque, IP65 protection.

PTO gearbox for Forestry Wood Processing

Forestry & Wood Processing

Wood chippers, stump grinders, pruners, log splitters. Up to 3,000 RPM with overload protection.

PTO gearbox for Truck Commercial Vehicles

Truck & Commercial Vehicles

Split shaft, sandwich, side-mount PTOs. Fire trucks, garbage compactors, vacuum trucks, aerial platforms.

PTO gearbox for Marine Offshore

Marine & Offshore

Vessel fire pumps, deck cranes, anchor winches, generators. Stainless hardware, FKM seals, anti-corrosion.

PTO gearbox for Mining Oil Gas

Mining & Oil/Gas

Rock crushers, mud pumps, conveyors, pump jacks. Max torque, ductile iron. -30Β°C to +120Β°C, 24/7.

Why Choose Korea PTO Gearbox

Korea PTO Gearbox Co., Ltd β€” professional manufacturer in Ansan-si, South Korea. 15+ years, 12,000 mΒ² factory, ISO 9001 certified. 500+ OEM partners across 50+ countries.

PTO gearbox factory CNC workshop
PTO gearbox quality inspection
PTO gearbox assembly line
PTO gearbox CNC machines
PTO gearbox testing lab
PTO gearbox packaging shipping
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In-House Manufacturing

60+ CNC machines, carburizing furnaces, gear grinding. Complete vertical integration.

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Rigorous Quality Control

ISO 9001:2015. CMM, noise, load, seal testing. Defect rate <0.3%.

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OEM/ODM Custom

25+ engineers. Custom ratios, shafts, housings, branding. Prototype: 15 days.

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Global Logistics

Near Incheon/Busan ports. Full export docs. Lead time: 15-30 days.

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Competitive Pricing

Factory-direct. 20-35% savings vs. European. Same quality standards.

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After-Sales Support

EN/KR support. CAD files, manuals. 12-month warranty.

PTO Gearbox Selection Guide

Four steps to the right PTO gearbox β€” or contact our engineers

1

Application

Agriculture / Truck / Industrial / Marine

2

Input Speed

540 or 1000 RPM

3

Power Range

10-50 / 50-100 / 100-200 HP

4

Gearbox Type

Increaser / Reducer / Right-Angle

Get Custom Recommendation β†’

What Our Global Clients Say

β˜…β˜…β˜…β˜…β˜…

"Switched to Korea PTO Gearbox for our tiller production. Gear quality outstanding β€” field failure rate dropped 60%. Optimized ratio for Korean rice paddy conditions."

Mr. Park Joon-ho
Procurement Director, DaeHan Agricultural πŸ‡°πŸ‡·
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"Excellent quality, competitive pricing. Truck PTO units for fire trucks 3 years. Delivery on schedule. Highly recommended for Japanese OEM standards."

Mr. Tanaka Kenji
Chief Engineer, Osaka Fire Equipment πŸ‡―πŸ‡΅
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"Custom 1:4.2 ratio speed increaser for palm oil equipment. Prototypes in 20 days, production in 45 days. 18 months running flawlessly in tropical conditions."

Mr. Nguyen Van Minh
Managing Director, Mekong Agri-Tech πŸ‡»πŸ‡³

Frequently Asked Questions

Expert answers about PTO gearbox selection, specs, and ordering

What is a PTO gearbox?

A mechanical transmission that transfers power from engine to equipment via splined shaft. Performs speed conversion, 90Β° direction change, and torque multiplication. Input: 6-spline (540 RPM) or 21-spline (1000 RPM) per ISO 500.

540 vs 1000 RPM PTO?

540 RPM (Type 1): 6-spline 35mm for light-medium duty. 1000 RPM (Type 2/3): 21-spline for high power. Economy modes (540E/1000E) save fuel at lower engine RPM.

How to select the right PTO gearbox?

Match: (1) Input speed, (2) Output speed/torque β†’ ratio, (3) Power with safety factor, (4) Mounting dimensions. Free selection help β†’

Custom OEM PTO gearboxes?

Yes β€” MOQ 50 units. Custom ratios (1:1~1:100), shafts, housings, branding. 2D/3D drawings accepted. 15 days prototype, 30-45 days first batch.

Lead time?

In-stock: 3-5 days. Standard: 15-20 days. Custom: 30-45 days. Repeat: 15-25 days. Expedited: 10 days (+15%).

ISO 500 compliant?

Yes. Type 1: 6-spline Ø35mm (540 RPM). Type 2/3: 21-spline (1000 RPM). ISO 9001, CE, SGS certified.

Latest News & Technical Articles

Industry insights from our PTO gearbox experts

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