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Power Output: 4.1 kW / 5.6 HP at 10,000 RPM maximum power speed
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Engine Displacement: 72.6 cc 2-stroke with optimized ports for maximum torque
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Cylinder Dimensions: 50mm diameter × 37mm stroke for optimal combustion efficiency
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Cutting Capacity 50cm: Nominal bar length handles 50cm wood with plenty of power
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Exceptional Power-to-Weight Ratio: 1.60 kg/kW—class-leading efficiency
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Chain Specifications: Pitch 3/8″, gauge 1.5mm, 72 links—professional chain type 099/73LP
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Chain Speed: 28.1 m/s no load / 20.83 m/s working speed for aggressive cutting
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Low Vibration Design: 6.2 m/s² front handlebar / 4.1 m/s² rear handlebar—reduced operator fatigue
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Sound Levels: 105.1 dB(A) pressure / 115.3 dB(A) power—within professional standards
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Fuel Capacity: 0.75L tank for extended operating times between refueling
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Oil Capacity: 420ml automatic oiler capacity for continuous chain lubrication
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Net Weight: 6.6kg—remarkably light for a 72.6cc displacement class
Why Does 1.60 kg/kW Lead the Industry?
The Dolmar PS7310 Pro achieves a power-to-weight ratio of 1.60 kg/kW . Why does this matter? Efficiency. Competitors in the 72cc class weigh 7.5 kg+; the PS7310 delivers the same power, 1 kg less . That kilogram matters during the 8-hour felling session. Less weight, same muscle— Dolmar engineering excellence .
Why is 28.1 m/s the Speed of Short Chain Faster?
The Dolmar PS7310 Pro delivers a chain speed of 28.1 m/s —standard saws handle 20-22 m/s. Why does speed matter? Chip clearance. Faster chain speed ejects chips before they clog , maintaining cutting efficiency in wet wood. The PS7310 cuts through green oak where competitors struggle. Speed is productivity.
Why Does Low Vibration Extend Careers?
The Dolmar PS7310 Pro measures 6.2/4.1 m/s² vibration —competitors reach 8-10 m/s². Why does this matter? Hand-arm vibration syndrome (HAVS). Daily exposure to high vibration causes permanent nerve damage . The PS7310 ‘s 3-axis damping system reduces operator exposure by 35% , enabling careers of 10+ years instead of early retirement. Health is wealth.
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