Details

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1. Product Line Overview

Model	RK 80	RK 125	RK 155	Key Advantage
Power	8 HP	12.5 HP	15.5 HP	Scalable power options
Weight	86 kg	112 kg	123 kg	Lightest in class
Fuel Efficiency	184 g/PS.h	182 g/PS.h	183.8 g/PS.h	Industry-leading consumption
Dimensions	760×360×580 mm	760×370×600 mm	850×400×620 mm	Compact footprint

Shared Features:

• Direct injection combustion

• Water-cooled reliability

• Horizontal cylinder design

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2. Technical Deep Dive

A. Engine Performance

• RK 80: Ideal for light irrigation (0.465L displacement)

• RK 125: Perfect for construction machinery (0.666L displacement)

• RK 155: Heavy-duty power for industrial pumps (0.770L displacement)

B. Fuel Efficiency

• 3% more efficient than comparable Yanmar engines

• Low smoke emission meets Tier 2 standards

C. Durability Features

• Forged steel crankshaft

• Replaceable wet cylinder liners

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3. Application Guide

Application	Recommended Model	Why?
Farm Irrigation	RK 80	Lightweight + fuel efficient
Concrete Mixers	RK 125	Balanced power/weight
Industrial Pumps	RK 155	High torque for continuous operation

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4. Competitive Advantages

• vs Gasoline Engines: 30% lower fuel costs

• vs Competitors:

  • 15% lighter weight

  • Standard water-cooling (vs. air-cooled alternatives)