he STIHL SGA 85 is the industry’s first high-performance cordless backpack sprayer designed to eliminate the physical toll of manual pumping while delivering surgical precision. While standard sprayers struggle with fluctuating pressure, the SGA 85 features a sophisticated diaphragm pump paired with an electronic rotary control, allowing you to maintain a rock-steady pressure between 1 and 6 bar. This isn’t just about comfort; it’s about chemical efficiency. By locking in the exact pressure required for your specific nozzle, you virtually eliminate “over-spray” and chemical waste—saving money on expensive herbicides and pesticides from the very first fill. For the Irish professional managing greenhouses, orchards, or large-scale landscaping, the SGA 85 offers a silent, emission-free, and high-torque spraying solution that makes “pump-fatigue” a thing of the past. 1,000-Minute “Marathon” Runtime: When paired with an AP 200 battery, the SGA 85 can operate for up to 16.5 hours on a single charge. In a professional context, this means you can spray thousands of litres across multiple days without ever needing to visit a charger. Viton® Leak-Proof Seals: Engineered for industrial longevity, the internal pump system utilizes genuine Viton® gaskets. These are highly resistant to the aggressive chemicals and solvents found in modern fungicides and fertilizers that typically degrade standard rubber seals. Active-Flow Diaphragm Pump: Unlike piston pumps that can “pulsate,” the SGA 85 diaphragm pump provides a perfectly smooth, continuous flow. This ensures a uniform droplet size and consistent coverage, which is vital for effective weed control and plant health. Side-Mounted “Blind-Touch” Controls: The on/off switch and pressure dial are ergonomically positioned on the side of the unit, allowing you to adjust your spray pattern entirely by feel without having to remove the 17-litre backpack. Integrated Trigger Pressure Gauge: Stay in total command. The spray lance features a built-in pressure gauge right at the handle, allowing you to monitor the real-time output at the nozzle tip—a feature usually only found on expensive commercial tractor rigs. Greenhouse-Safe Zero Emissions: Because it is battery-powered, the SGA 85 produces zero exhaust fumes, making it the only high-capacity choice for indoor nurseries, polytunnels, and enclosed botanical gardens where petrol mistblowers are prohibited. Tapered 17L “Slosh-Reduction” Tank: The tank’s geometry and internal baffles are designed to minimize the shifting weight of liquid as you move. Combined with the BR 800-inspired harness, it feels significantly lighter on the back than its 17-litre capacity suggests.
