Neo-tec NH8120 120cc 28 36 42in Gas Chainsaw for Heavy-Duty Use

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  • 120cc 2-stroke pro engine: 8.0HP (6.0kW) cuts 42-inch hardwood effortlessly.
  • 24-42 inch guide bar compatibility: Versatile for thick trunks, heavy felling & milling.
  • High torque output (7.7N·m): No stalling on wet, knotted or frozen hardwood.
  • Automatic oiler: Extends chain life & ensures steady flow.
  • Multi-group anti-vibration dampeners: 50% less arm fatigue during all-day work.
  • Power Source: Gas Powered
  • Cylinder displacement: 118.8cm3
  • Max Power: 6.0kW/ 8HP
  • Fuel Ratio: FB 25:1,FD40:1
  • Spark Plug :L7T
  • Sprocket type:7Tx 3/8
  • Recommended Chainsaw Bar & Chain: 24in 28in 36in 42in
Products: NH8120 Power Head
Price:
Sale price$539.99 Regular price$629.99
Shipping Promise
Shipped from multiple US warehouses for local delivery.

Orders for chainsaws with 24/25 inch+ guide bar and chain sets will be shipped separately in two packages

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Expert Support Within 2 Business Days
7-Day Easy Returns / 30-Day Unused
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Key Features

118.8cc 8HP Heavy Duty Chainsaw for Heavy Logging

118.8cc 8HP Heavy Duty Chainsaw for Heavy Logging

Safety Assurance

Safety Assurance

50Inch/125cm Max Cut Professional Logging

50Inch/125cm Max Cut Professional Logging

Quick-release Air Filter

Enables fast cleaning and replacement in the field, reducing maintenance downtime.

Adjustable Oil Flow Prolong Chain Lifespan

Manual oil adjustment lever to extend chain service life and increase lubrication volume by up to 30%.

Professional Anti-vibration System

Greatly reduces handle vibration during use, helping to minimize operator fatigue and improve overall comfort during extended work.

Switchable Sprocket Options Available

3/8 Sprocket: agile and versatile for daily logging and firewood tasks.
.404 Sprocket: stable and high-torque for heavy-duty cutting and timber milling.

Product Comparison

Discover More Difference
Neo-tec NS8105 105cc 36in 42 inch Gas Chainsaw for Milling
Neo-tec NS8105 105cc 36in 42 inch Gas Chainsaw for Milling
$369.99 USD $419.99 USD
FARMMAC F070W 105cc Gas Chainsaw fit 36 inch 42 inch Chainsaw Bar
FARMMAC F070W 105cc Gas Chainsaw fit 36 inch 42 inch Chainsaw Bar
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Neo-tec NH8120 120cc  28  36 42in Gas Chainsaw for Heavy-Duty Use
Neo-tec NH8120 120cc 28 36 42in Gas Chainsaw for Heavy-Duty Use
$539.99 USD $629.99 USD
NS8105FM
SKU
F070WUS
SKU
NH8120US
SKU
2-Stroke
Engine Type
2-Stroke
Engine Type
2-Stroke
Engine Type
105cc
Displacement
105cc
Displacement
118.8cc
Displacement
4.6kW/ 6.1HP
Max Power
4.6kW/ 6.1HP
Max Power
6.0kW/ 8HP
Max Power
8500rpm
Maximum Engine Speed
with Cutting Attachment
8500rpm
Maximum Engine Speed
with Cutting Attachment
10000rpm
Maximum Engine Speed
with Cutting Attachment
2800rpm
Maximum Engine Speed
at Idle Speed
2800rpm
Maximum Engine Speed
at Idle Speed
2800rpm
Maximum Engine Speed
at Idle Speed
Pull Start
Start Type
Pull Start
Start Type
Pull Start
Start Type
FB 25:1 Fuel-Oil Mix Ratio,FD 40:1 Fuel-Oil Mix Ratio
Fuel to Oil Mix
FB 25:1 Fuel-Oil Mix Ratio,FD 40:1 Fuel-Oil Mix Ratio
Fuel to Oil Mix
FB 25:1 Fuel-Oil Mix Ratio,FD 40:1 Fuel-Oil Mix Ratio
Fuel to Oil Mix
🪵Heavy-Duty + Chainsaw Milling
Application
🪵Heavy-Duty + Chainsaw Milling
Application
🪵Heavy-Duty + Chainsaw Milling
Application
15 mins
Full-Load Running Time (Lab-Tested Reference)
15 mins
Full-Load Running Time (Lab-Tested Reference)
18 mins
Full-Load Running Time (Lab-Tested Reference)
Magnesium alloy
Crankcase Materials
Magnesium alloy
Crankcase Materials
Magnesium alloy
Crankcase Materials
Rubber Buffer
Shock Absorption System
Rubber Buffer
Shock Absorption System
Spring Buffer
Shock Absorption System
Aluminum Rubber Non-Slip Grip
Handle Bar
Aluminum Rubber Non-Slip Grip
Handle Bar
Aluminum Rubber Non-Slip Grip
Handle Bar
Speed-Sensing Automatic Oil Pump + Manually Adjustable Oil Pump
Oil Pump
Speed-Sensing Automatic Oil Pump + Manually Adjustable Oil Pump
Oil Pump
Speed-Sensing Automatic Oil Pump + Manually Adjustable Oil Pump
Oil Pump
7Tx 0.404
Sprocket type
7Tx 0.404
Sprocket type
7Tx 3/8
Sprocket type
45”/115cm
Max Cutting Diameter
45”/115cm
Max Cutting Diameter
50”/125cm
Max Cutting Diameter
36”,42”
Recommended Guide Bar Size
36”,42”
Recommended Guide Bar Size
28”,36”,42”
Recommended Guide Bar Size
12 Month Consumer / 3 Month Commercial
Warranty
12 Month Consumer / 3 Month Commercial
Warranty
12 Month Consumer / 3 Month Commercial
Warranty

FAQS

Cold Start
  1. Add fuel (fuel mixing ratio: 25:1).
  2. Close the choke. If the machine is equipped with a primer bulb, press it 3–5 times until the bulb is filled with fuel.
  3. Pull the starter rope 3–5 times.
  4. After hearing two “coughing” sounds,
  5. Open the choke.
  6. Pull the starter rope to start the machine.
Hot Start
  1. Open the choke.
  2. Pull the starter rope to start the machine.

The issue may be caused by an incorrect fuel mixture, spark plug problems, or a clogged carburetor.

  1. Check whether the fuel mixing ratio is 25:1. If not, adjust the fuel mixture to 25:1.
  2. Check whether the fuel line is bent or blocked.
  3. Check whether the spark plug is sparking properly.
  4. Check whether the engine is flooded.
  5. Check whether there is a carburetor malfunction.
  1. Confirm whether the spark plug is producing a spark: Remove the spark plug, connect it to the ignition coil, and place the spark plug electrode in contact with a metal part of the machine. Pull the starter rope and observe whether the spark plug produces a spark during starting.
  2. Check the electrode gap. The correct gap is 0.5–0.7 mm (approximately the thickness of a credit card).
  3. Clean oil residue and debris from the surface of the spark plug.
  4. If the engine still does not start after completing the above steps, replace the spark plug with a new one.
  5. Check whether the high-voltage wire (ignition coil lead) is damaged.
  1. Remove the spark plug.
  2. Turn the machine upside down.
  3. Pull the starter rope.
  4. Drain the excess fuel from the cylinder.
  1. Remove the air filter.
  2. Use an air blower to remove dust or debris from the air filter.
  3. If it cannot be cleaned or has been used for a long time, replace the air filter.

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