Knapsack Style Engine Sprayer
/ Power Sprayer

Knapsack Style Engine Sprayer
There are two types of pumps ; piston type and cascade type.
The piston type comes with a horizontally-opposed uniflow pump duplex developed by our company with a 3.5Mpa high-pressure pump, and mainly exported to Asia and South America. Our horizontally-opposed uniflow pump is MARUYAMA's best seller and supported by our customers for over 20 years.
The cascade type pump is a simple structure and is the best pump for herbicide application and exported to Japan. Engines for Japan are equipped with "Magical Starter," which has a light pulling force on the recoil starter, making it easy to start the engine.

The chemical tank is produced by our own blow molding machine. The polyethylene tank has improved durability and is made with materials giving anti-deterioration measures from UV rays and anti-static electricity.

Power Sprayer
Our power sprayer comes with a compact direct-coupled engine well known as MARUYAMA's own. The pump excels in durability and maintenance with the traditional uniflow system. Set together with the engine, it serves as a lightweight power sprayer loved by many of our customers.
There are two types of pump with water absorption amounts of 20L/min. and 30L/min. It has high pressure performance of 5.0Mpa.

Production Process

MARUYAMA is proud of manufacturing the key parts internally in order to maintain the quality of our products. A strict quality standard is applied to our assembly process, and our engineers produce each one of our products with extreme care. In the blow molding process, product quality is ensured by control of the work environment, and the work place layout is set to provide enough room for our workers to carry out their jobs easily.

1. Pump Production Line

Assembly of the pump.

Pump operation test.

2. Assembly / SUB-ASSY (Assembly of semi-finished products)

SUB -ASSY + Assembly (engine, chemical tank, wiring harness).

Operation inspection of a knapsack style engine sprayer (power testing, spray testing).

3. Finished product + Packing

Operation inspection is conducted on all products, and only those passing our strict tests are passed to the line where they are labeled and packed in boxes.