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42V Masport Lawn mower ST S18 (578744)

$699.00 (AUD$ Including GST)

No Local Stock Available

Ex display machine available for in store pick up only

Includes battery and charger

The Energy Flex® Mower employs the M-Tech power management system to provide power to an advanced brushless induction motor.


Sorry, the manufacturer has discontinued this product.

We do however still stock spare parts for this model.

This Masport 42V Lawnmower from the Energy Flex® family combines the advantages and performance of a classic petrol mower with the clean, quiet, exhaust-free operation of a cordless electric motor. The Energy Flex® Mower employs the M-Tech power management system to provide power to an advanced brushless induction motor.

Featuring load sensing technology, the motor adapts to the cutting conditions, sensing grass thickness and optimizes power requirements for the best quality of cut, balancing power and maximizing runtimes through intelligent and efficient energy use. The Energy Flex® Mower delivers freedom and convenience at the push of a button.

  • Cut, Catch & Side Discharge
  • Powered by Energy Flex 42V Lithium-ion battery
  • Push the button and pull the bail to start mowing
  • 1 x 42V Energy Flex Lithium-ion battery
  • Battery run time – 42V 4Ah Up to 40 mins*
  • Battery charger included – output: 42V, 3A
  • 4 stage LED battery charge level indicator – simply push the button for battery charge status
  • 460mm (18″) steel chassis
  • Solid steel 7/8″ motor drive shaft, no plastic fan required
  • Masport 2 Blade Disc System
  • Front 200mm (8″) and Rear 200mm (8″) adjustable mono bearing wheels
  • Comfortable upturned upper handle with soft grip
  • Reinforced lower handle for added strength
  • Camlocks for quick release handle fold down
  • HDPE Plastic Catcher
  • Smartchute® for side discharge
  • 4 Year Motor Warranty
  • 3 Year Battery and Battery Charger Warranty
  • *Run times are based on no load

Masport Lawnmower Technical Specifications:

    • Mower Owners Manual
    • Powerhead Owners Manual
    • Warranty Card
    • Batteries Included  
    • Charger Included  
    • LED Battery Charge Status Display  
    • Cordless  
    • Smartchute®  
    • M-Tech Power  
    • Adjustable Wheel Bearings 
    • HDPE Plastic Catcher  
    • Motor: Battery
    • Motor Make: Masport M-TECH®
    • Motor Model: 42 Volt 0.75 kilowatt with load sensing technology
    • Battery Type Required:  Energy Flex Lithium-ion 42V 4Ah
    • Battery Voltage (volts): 42V
    • Battery Run Time: Up to 40 mins*
    • Charge Time (mins):  42V 4Ah – 90 minutes
    • Cutting Width:  460mm (18″)
    • Cutting Height Range:  11mm – 75mm
    • Cutting Methods:  Cut, Catch, Side Discharge
    • Number of Blades:  2
    • Cutting System:  Masport 2 Blade Disc System
    • Cutting Height Steps:  10
    • Cutting Height Adjustment:  Single Point
    • Drive System:  Push
    • Chassis Material:  Steel
    • Upper Handlebar Type:  Upturned with soft grip
    • Handlebar Retainer:  Camlocks
    • Lower Handlebar Type:  Reinforced
    • Catcher Type:  HDPE Plastic
    • Catcher Volume:  46.5L
    • Wheel Bearing Type:  Adjustable Mono Ball
    • Wheel Type & Size:  Front 200mm (8″) and Rear 200mm (8″)
    • Weight:  24.8kg
    • Product Dimensions (W x H x L):  535mm x 980mm x 1385mm

*Run times are based on no load

Why Masport ?

Masport products are feature-rich, innovative, and truly high-performance. Learn more by visiting Why Masport 

Additional information

Lawn Mowers


Product Grading




Motor Type


Motor Power


Load Sensing Technology


Battery System


Running Time per Charge

Up to 40 minutes

Battery Status Indicator


Cutting Width

46cm (18")

Cutting Blades

Masport 2 Blade Disc System

Cutting Height

11mm – 75mm

Cutting Height Increments


Mulch Plug


Side Discharge Capable


Full Catcher Indicator



46.5L HDPE Plastic




3 year battery warranty
4 year product warranty

Weights and Dimensions
Box Dimensions

54.4cm x 52.3 cm x 88.6cm

Box Gross Weight


Product Only Dimensions

138.5cm x 98cm x 53.5cm

Product only Weight



28.74 kg


54.4 × 52.3 × 88.6 cm

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