NS-20A

Product Overview

The “A” in its name highlights its core advantage: Auto-Pressure Regulation—a feature that eliminates the need for constant manual pumping, addressing the fatigue issue common in traditional large-capacity sprayers. As part of Farmate’s “smart agriculture” lineup, this sprayer balances 20L large capacity with user-friendly automation, ensuring consistent performance for tasks like fertilizing vegetable fields or treating orchard pests. Supplied as 1 unit, it requires minimal assembly (only the wand and shoulder strap need attaching) and includes a clear user guide for quick setup. Whether you’re covering a 600-square-meter vegetable farm, a 150-tree peach orchard, or a communal green space, the NS-20A delivers steady, efficient spray without the hassle of frequent pressure checks, making it a reliable workhorse for busy agricultural users.

Product Features

Auto-Pressure Regulation System

At the heart of the NS-20A is its built-in auto-pressure regulator, which maintains a steady 0.9MPa pressure without manual intervention. Unlike manual sprayers that require pumping every 2-3 minutes (disrupting workflow), this system automatically adjusts pressure as you spray—ensuring uniform mist across large areas. The regulator includes a digital pressure display (visible on the tank’s side) that lets you monitor pressure in real time, so you never face unexpected drops in performance. For users who spray for hours at a time (e.g., orchard managers treating 100+ trees), this feature cuts down on physical strain and keeps tasks flowing smoothly. The system also has a pressure safety valve that releases excess air if levels exceed 1.1MPa, protecting the tank and wand from damage.

20L Corrosion-Resistant HDPE Tank

The sprayer’s 20L tank is crafted from food-grade high-density polyethylene (HDPE) with an added anti-corrosion coating—making it safe for both organic solutions (neem oil, compost tea) and harsh chemicals (glyphosate, fungicides). The tank’s large capacity reduces refills: it covers up to 450 square meters per fill (depending on solution dilution), so you can treat an entire medium-sized vegetable field without stopping. A 13cm wide-mouth opening allows easy refilling (no funnel needed) and simplifies cleaning—you can reach inside with a sponge to wipe away residue. The tank also features a translucent side panel with volume markings, letting you track solution levels at a glance and avoid running out mid-task.

Ergonomic Padded Backrest & Straps

Designed for extended use, the NS-20A includes a curved, padded backrest and adjustable shoulder straps. The backrest is made from breathable mesh fabric that reduces sweat buildup during hot summer spraying sessions, while the straps (padded with 1.5cm thick foam) distribute the 22kg full-tank weight evenly across your shoulders and back. Unlike flat straps that dig into skin, these contoured straps stay in place even when moving through uneven orchard terrain. The sprayer also has a waist belt that clips around your torso, further reducing strain on your lower back. For users who work 2-3 hours straight, this ergonomic design turns a tiring task into a more comfortable experience.

Applications

Medium-Scale Vegetable Farming

Farmers with 500-800 square-meter vegetable plots (growing tomatoes, cucumbers, or carrots) will benefit from the NS-20A’s auto-pressure and large capacity. The steady mist from the auto-regulator ensures even coverage of liquid fertilizers or insecticides, preventing patchy growth or pest outbreaks. The 20L tank covers the entire plot in 1-2 fills, and the ergonomic straps let you move between rows without fatigue. For organic farmers, the corrosion-resistant tank safely holds natural solutions like neem oil, eliminating the risk of chemical reactions or tank damage.

Mid-Size Orchard Care

Orchard managers with 100-200 fruit trees (apple, pear, or citrus) will rely on the NS-20A’s reach and consistency. The sprayer’s 50cm stainless steel wand (included) reaches the upper branches of 3-meter-tall trees, and the auto-pressure system ensures mist penetrates dense foliage to target hidden pests (like codling moths). The 20L tank covers 150 small trees per fill, reducing trips back to the water source. The breathable backrest is a bonus for orchard work, as it keeps you cool during long sessions under the sun.

Community Garden Coordination

Community gardens serving 15+ families (with shared plots for vegetables, herbs, or flowers) need tools that are easy to use and efficient—and the NS-20A fits this need. Its auto-pressure system means even new gardeners can operate it without learning manual pumping techniques, and the large tank lets groups spray shared plots (e.g., a 300-square-meter communal lettuce bed) in one go. The ergonomic design makes it accessible for users of all ages and strengths, from teens to senior gardeners. For coordinators, the sprayer’s low maintenance (easy to clean, no complex parts) reduces upkeep hassle.

FAQ

How does the auto-pressure regulation system work?

The system uses a small, battery-powered sensor (included, rechargeable via USB) to monitor tank pressure. When pressure drops below 0.8MPa, it automatically activates a mini pump to boost pressure back to 0.9MPa. The digital display shows real-time pressure, and the system shuts off if pressure exceeds 1.1MPa (via the safety valve). A full battery charge powers the sensor for 8 hours of continuous use—enough for a full day of spraying.

How much does the NS-20A weigh when the 20L tank is full?

When filled with water (≈1kg per liter), the sprayer weighs approximately 22kg (tank + wand + straps). The ergonomic backrest and padded straps distribute this weight evenly, so most users can carry it for 20-30 minutes at a time. The waist belt also helps support the weight, reducing strain on your back.

Is the tank compatible with acidic solutions like iron chelate fertilizers?

Yes, the HDPE tank’s anti-corrosion coating resists both acidic and alkaline solutions—including iron chelates, sulfuric acid-based fertilizers, and lime sulfur (a common orchard fungicide). After using acidic products, rinse the tank with clean water to remove residue—this prevents buildup that could affect future spray performance.

What maintenance is required for the auto-pressure system?

The system is low-maintenance: every 2 months, wipe the pressure sensor with a dry cloth to remove dust (it’s water-resistant but not waterproof). Recharge the sensor battery after each use (charging takes 1.5 hours). The mini pump is sealed and requires no oiling or part replacement. If the digital display stops working, check the battery connection—loose connections are the most common issue.