For agricultural professionals seeking powerful and efficient spraying solutions, a large capacity backpack sprayer is an indispensable tool. These units are designed to handle extensive coverage with minimal effort, making them ideal for large farms, orchards, and commercial landscaping. When looking for top-tier performance, you should consider a High-performance 4 Stroke Sprayer. This type of engine is renowned for its fuel efficiency and consistent power output, reducing operational costs over time. For demanding agricultural applications, an Agricultural 4 Stroke Sprayer provides the durability and reliability needed for daily use in tough conditions. The design of an Agricultural Backpack Sprayer prioritizes operator comfort with ergonomic harness systems, allowing for longer working hours without fatigue. The core of this efficiency lies in the 4 Stroke Powered Sprayer technology, which offers smoother operation and lower emissions compared to 2-stroke alternatives, making it an environmentally conscious choice for modern farming.


The ProSpray 4000 large capacity backpack sprayer is engineered for maximum productivity and user comfort. It features a robust 25-liter chemical tank constructed from high-density polyethylene, which is resistant to corrosion from a wide range of agricultural chemicals, fertilizers, and pesticides. The heart of the ProSpray 4000 is its powerful 4-stroke engine, ensuring reliable starts and consistent pressure for uniform liquid distribution. An adjustable pressure control valve allows operators to fine-tune the spray pattern and flow rate to suit specific crops and application requirements. The spray lance is equipped with an anti-drip valve and multiple nozzle tips for switching between a fine mist and a powerful jet stream. The padded, adjustable backpack harness is designed to distribute the weight evenly across the shoulders and back, significantly reducing operator strain during long-term use.

  • Tank Capacity: 25 Liters (6.6 Gallons)
  • Engine Type: 4-Stroke, Air-Cooled
  • Maximum Pressure: 450 PSI
  • Spray Lance Length: 1.2 Meters (Adjustable)
  • Nozzle Options: Cone, Flat Fan, and Jet Stream
  • Harness Type: Padded, Adjustable Backpack System
Feature Specification Benefit
Engine Displacement 52cc Provides ample power for high-pressure spraying over large areas.
Fuel Tank Capacity 1.2 Liters Enables extended operation time, reducing refueling stops.
Operating Weight (Full) Approx. 15 kg Heavy-duty yet manageable weight for a single operator.
Pump Type Diaphragm Pump Ensures long service life and consistent performance with abrasive mixtures.
Hose Length 2.0 Meters Allows for greater reach and maneuverability around plants and obstacles.

Hot Products

  • Dust Machine

    Dust Machine

    High quality dust machine is offered by China manufacturer Woerxing. The sprayer is loved by more and more farmers for its high efficiency, economy and environmental protection. Compared with traditional manual spraying, mechanical spraying has the advantages of high efficiency, saving, reducing the use of pesticides and protecting the environment, which has contributed a lot to the labor and health of farmers, the benefits of production and environmental protection.
  • Spray Machine

    Spray Machine

    Find a huge selection of spray machine from China at Woerxing. The use of agricultural machinery such as pesticide sprayers is very common. With the advancement of agricultural technology, pesticide sprayers have become an indispensable assistant in farmland.
  • Household Chainsaw

    Household Chainsaw

    Woerxing is a leading China household chainsaw manufacturer, supplier. When you need to process a large amount of wood, a chainsaw is an indispensable tool. Compared with traditional hand tools, chainsaws are more efficient and can greatly reduce labor and time costs.
  • Grass Trimmer

    Grass Trimmer

    Woerxing is a professional China Grass Trimmer manufacturer and supplier, if you are looking for the best Grass Trimmer with low price, consult us now! For those who need to deal with a lot of lawn, please allow me to recommend our backpack lawn mower to you. This grass trimmer perfectly balances portability and efficiency, providing an efficient and comfortable choice for your lawn mowing.
  • 4 Stroke Water Pump

    4 Stroke Water Pump

    Woerxing is China manufacturer & supplier who mainly produces 4 Stroke Water Pump with many years of experience. As a high-performance water pump, it can easily meet your water engineering needs. It can smoothly lift water from underground to the ground, and can also pump water from one container and transfer it to another container.
  • Self-Priming Water Pump

    Self-Priming Water Pump

    As the professional manufacturer, Woerxing would like to provide you self-priming water pump. The water pump is an indispensable device that plays an important role in many different application fields. It is a device that can transport liquids to different locations or different heights, mainly used for agricultural irrigation and industrial assembly line material transportation.

Send Inquiry

X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy