STIHL SR 450 Petrol Mistblower – 2-in-1 Backpack Sprayer & Granule Spreader

The STIHL SR 450 Petrol Mistblower 42440112641 is a powerful 2-in-1 backpack mistblower designed for both liquid spraying and granule spreading, making it the ideal solution for professional users working across agriculture, landscaping, forestry, and large-scale property maintenance.

Built with a high-performance STIHL 2-MIX engine, the SR 450 delivers outstanding power with improved fuel efficiency and reduced emissions. With an impressive spraying range of up to 14.5 metres, it ensures fast, even, and precise coverage across large areas, helping you complete demanding jobs quickly and efficiently.

2-in-1 Spraying & Dusting Functionality

What sets the STIHL SR 450 apart is its quick conversion system, allowing you to switch seamlessly between:

• Liquid spraying (fertilisers, herbicides, pesticides, fungicides)
• Granule and powder application (fertiliser, seed, lawn treatments)

The tool-free conversion system makes switching modes fast and simple—just remove, rotate, and reinstall the tank.

Powerful Coverage with Precision Control

Designed for professional accuracy, the SR 450 features:

• Up to 14.5m spray distance for large-scale coverage
• Adjustable dosing system for precise application of liquids or granules
• Three interchangeable spray meshes (cone, deflection, double deflection) for controlling spray pattern and direction

This ensures maximum efficiency whether you’re targeting crops, lawns, or hard-to-reach areas.

Large 14-Litre Tank for Extended Use

The generous 14-litre tank capacity allows for longer working periods without constant refilling. A wide filler opening ensures:

• Fast and easy refilling
• Reduced spillage
• Simple cleaning and maintenance

Ergonomic Design for All-Day Comfort

The STIHL SR 450 mistblower is built for extended use with operator comfort in mind:

• Comfortable backpack harness system for balanced weight distribution
• Padded backrest for improved support
• Optimised weight distribution to reduce fatigue
• STIHL anti-vibration system to minimise strain during prolonged use

Easy One-Handed Operation

The multi-function control handle integrates all controls into one convenient location, allowing:

• Simple one-handed operation
• Suitable use for both left- and right-handed operators
• Greater control and efficiency while working

Key Features

• STIHL 2-MIX 63.3cc engine – powerful, efficient, and low emissions
• 2-in-1 function – liquid spraying and granule spreading
• Up to 14.5m spray range – ideal for large areas
• 14-litre tank – extended operation with fewer refills
• Quick tool-free conversion system
• Adjustable dosing lever for precise application
• Three spray meshes for custom spray patterns
• Anti-vibration system for reduced fatigue
• Ergonomic harness & padded backrest for comfort
• Multi-function handle for easy one-handed control

Ideal Applications

The STIHL SR 450 petrol mistblower is perfect for:

• Agriculture and crop spraying
• Lawn care and fertiliser spreading
• Pest and weed control
• Forestry and estate management
• Large gardens, parks, and commercial grounds

Why Choose the STIHL SR 450?

If you need a versatile, high-powered mistblower that can handle both liquid and granular applications, the STIHL SR 450 is one of the best options on the market. Its combination of power, range, flexibility, and operator comfort makes it a top choice for professionals who demand reliability and efficiency.