The power-to-weight ratio of the two-stroke push mower is 0.36 horsepower per kilogram. For instance, the Poulan Pro PR5020 model engine, having 3.7 horsepower, weighs only 10.2 kilograms, i.e., it is 28% lighter compared to a similar power four-stroke engine and reduces physical labor by 40% while transporting it. In fuel efficiency, the design of a 1:50 mixed oil ratio reduces the operating cost per hour to as low as $0.45. In comparison with the intermittent working mode of battery models charging every 20 minutes, the continuous working efficiency is increased by 2.8 times. A study by the United States Department of Agriculture in 2022 shows that when maintaining a 1-acre (approximately 4,047 square meters) lawn, the 2 stroke push mower has an average annual fuel usage of 18 liters, saving 22% in fuel expenses in comparison to the four-stroke version, and the oil change time is reduced by 50% (every 100 hours). For price-conscious consumers, the purchase price is only $199- $249, 28%-37% lower than that of the four-stroke variant ($279- $399), and the payback period falls to 2.3 years.
Terrain adaptability is the very spirit of competitiveness of this equipment. Test data from the German Bosch Group shows that if the 2-Stroke curved cutter head push mower is applied to the slope of 35 degrees, its cutting efficiency is 19% higher than the four-stroke mower, and it still maintains 87% of the torque output when the speed of the blade rotation is 3000rpm. The 2023 Southeast Asian market research indicates that in an environment of high temperature and high humidity (where the temperature is 35℃ and the humidity is 80%), this product’s carburetor failure rate is 14% lower than four-stroke products because of the reduced single-loop fuel system structure. For example, the lawn maintenance project at the University of Queensland in Australia. After a 200-hour continuous running on the Husqvarna 125B model, engine block temperature remained stable at 90-110℃, and overheating shutdown prevalent in four-stroke engines (incidence rate 12%) did not occur. On hard grass (thickness of grass stem > 4.5kN/m²), its twin-layer blade type increases cutting efficiency by 23%, with an outflow capacity for grass stubble of 0.8 m³/minute, while processing capacity is 2.5 times the electric machine capacity.
As far as convenience in maintenance is concerned, the 2-stroke push mower has 38% fewer mechanical structure parts compared to the four-stroke push mower, and the success rate for user self-maintenance has reached 65%. Consumer Reports of the United States statistics in 2021 show that spark plug replacement (model NGK BPMR7A) only takes 8 minutes, saving 15 minutes over the four-stroke model, and yearly maintenance cost is maintained at $35. Market examples show that the Brazilian agriculture cooperative adopted a bulk purchase strategy and purchased 300 pieces of 2-stroke push mowers at $189 per piece. The utilization rate of equipment was 92% after five years, 11 percentage points higher than that of the four-stroke units. Of notable mention is that its modular structure enables quick replacement of the knife set (5 minutes average). When cutting through different types of grass, customers can achieve a cutting accuracy of 92% by adjusting the cutting height (20-100mm), rendering it best used in precise cases such as the green section of a golf course (grass length of 4.8mm±0.5mm). Such technological features enable it to sustain a stable 15%-18% market share in the business horticulture machinery industry.