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Powered by a four-cylinder water-cooled inline diesel engine, the 3WPZ-800D delivers consistent power for demanding tasks. Its mechanical drive system works in tandem with the four-wheel drive setup to ensure reliable performance. The steering system offers two modes—four-wheel and two-wheel—adapting to different terrain and crop spacing needs. The spray boom is crafted from lightweight, durable aluminum, with hydraulic lifting for easy height adjustment. The medicine tank is made from chemical-resistant materials, with jet and reflux stirring systems for uniform mixing. Drum brakes provide reliable stopping power, and the pneumatic rubber tires offer durability and traction on diverse soils. The eight-speed gearbox ensures smooth shifting, allowing operators to adjust speed based on crop density.
| Project name | Specification parameters | Item name | Specification parameters | ||
| Overall size | Overall dimensions (mm) | 5250*1960*3120 | Powertrain | Engine power (kw/r/min) | 36.8/2400 |
| Ground clearance (mm) | 1060 | Battery capacity | 24V, 2*45Ah, | ||
| Spray length (mm) | 12000/15000 | Engine type: | Four-cylinder water-cooled inline | ||
| Spray rod lift (mm) | 320/1720 | Walking system | Weight of the whole machine (Kg) | 2250 | |
| Axle track (mm) | 1500/1800 | Drive | Four-wheel drive | ||
| Wheelbase (mm) | 2200 | Steering | Four-wheel | ||
| Cab | Adjustable | Gearbox | Uniquely designed 8-speed gearbox very smooth. | ||
| Spray system | Spray rod position | Front | Brakes | Drum Brake | |
| Spray rod material | Aluminium | Tires | Pneumatic rubber | ||
| Number of spray bodies (each) | 24/32 | Tire diameter (mm) | 1080 | ||
| Spray rod type | Hydraulic lift | Tire width (mm) | 120 | ||
| Medicine cabinet Volume (L) | 800/1000 | Turning radius (mm) | 3050 | ||
| Working pressure (Mpa) | 0.2-0.5 | Drive mode | mechanical drive | ||
| Drug pump flow (L/min) | 36-81 | Walking speed (km/h) | Low :2.53/8.8/13.2/3.3; High:4.95/17.6/26.4/6.6 | ||
| Medicated liquid stirring | Jet +Reflux | Work benefit | Application efficiency | Arid land 2.5-3.5hec/h | |
| Medicine pump construction | 3-cylinder plunger pump | Topdressing efficiency | Arid land 3-4 hec/h | ||
| Medicine pump drive | Belt drive | Fuel consumption (L/h) | 4 L/h | ||
The 3WPZ-800D self-propelled sprayer is a specialized agricultural sprayer designed for crops with wide row spacing, large plant spacing, and greater height. As a high ground clearance sprayer, it features an enhanced ground clearance, widened wheelbase, and extended wheelbase, ensuring it navigates over tall crops without causing damage. This self-propelled boom sprayer is equipped with a rear re-spray device, addressing tire indentations during herbicide application for comprehensive coverage. With four-wheel drive and dual steering modes (four-wheel/two-wheel), it offers flexibility for diverse farming scenarios, from vegetable fields to Chinese herbal medicine plots. Its durable construction and efficient spray system make it a top choice for farms growing tall crops or crops with wide spacing.
The 3WPZ-800D’s standout feature is its high ground clearance sprayer design, allowing it to glide over tall crops without bending or damaging stems. This makes it ideal for corn, sorghum, and other tall crops during their early and mid-growth stages. The increased ground clearance also prevents the machine from disturbing soil or seedlings, preserving crop health and yield potential.
With a widened wheelbase and extended track length, this wide row spacing sprayer offers superior stability, even on uneven terrain. The balanced weight distribution reduces the risk of tipping, while the four-wheel drive system provides excellent traction on diverse soil types. The design ensures the sprayer can navigate between wide crop rows without compacting soil or damaging adjacent plants.
Equipped with a rear re-spray device, the sprayer addresses tire indentations left during herbicide application. This unique feature ensures no area is missed, as the rear nozzles re-spray the tracks, eliminating gaps in weed control. The rear re-spray sprayer function enhances the effectiveness of herbicides, ensuring uniform coverage across the entire field.
The spray system features aluminum spray booms with hydraulic lifting and folding mechanisms, allowing easy adjustment for different crop heights. The 24 stainless steel nozzles are corrosion-resistant and equipped with drip-proof filters, preventing leaks and ensuring precise application. The three-cylinder plunger pump delivers steady pressure, producing uniform atomization that adheres well to crop surfaces. All components are built to withstand the rigors of agricultural work, including exposure to chemicals and harsh weather.

Perfect for tall crop sprayer applications, the 3WPZ-800D protects corn, sorghum, and other tall crops during their early and mid-growth stages. Its high ground clearance and wide wheelbase prevent crop damage, while the uniform spray coverage controls pests and diseases effectively.
Designed for crops with wide row and plant spacing, such as vegetables, fruits, and Chinese herbal medicines, this sprayer navigates easily between rows without compacting soil. The targeted spray system ensures chemicals reach the base of plants, providing effective pest and weed control.
The sprayer is ideal for large-scale pre-sowing soil treatment, including weed prevention and soil disinfection. Its wide coverage and efficient liquid distribution prepare extensive plots for planting, ensuring optimal growing conditions for seeds.
Like other models in the series, the 3WPZ-800D is dual-purpose, capable of spraying pesticides at the front and spreading fertilizers at the back. The matching spray and spread widths reduce crop disturbance, making it a versatile tool for integrated crop management.
Refer to the steps marked on the label at the seat adjustment handle. These step-by-step instructions guide you through adjusting the four wheels to ensure they’re aligned correctly. Proper wheel alignment improves stability, reduces tire wear, and enhances maneuverability in wide crop rows.
Rotate the red handle of the water distribution valve counterclockwise to adjust the outlet pressure to the recommended level. This thickens the spray mist, reducing drift caused by wind. For best results, spray during calm weather conditions and adjust the spray boom height to match crop height.
Lift the engine guard to access the coolant tank’s insect-proof net. Clean the net thoroughly to remove accumulated insects, dust, and debris, which can block airflow and cause overheating. Ensure the net is free of obstructions to maintain proper cooling system function.
