Description
Professional 18-Litre Manual Backpack Sprayer
The STIHL SG 71 is a robust 18-litre manual backpack sprayer developed for professional plant care, weed-control and pest-control applications across larger areas.
Unlike a battery or petrol sprayer, the SG 71 is operated using a manual pump lever, so there is no engine to service, battery to charge or fuel to store. The lever can be mounted on either the left or right-hand side and adjusted in length to help the operator find a comfortable working position.
With a maximum working pressure of 6 bar and a maximum flow rate of 1.4 litres per minute, the SG 71 provides controlled treatment application for demanding garden, horticultural, landscaping and grounds-maintenance work.
Key Features of the STIHL SG 71
- 18-litre tank capacity: Suitable for treating larger areas with fewer interruptions for refilling.
- Manual pump operation: Does not require fuel, a battery or an external power supply.
- Left or right-hand pump lever: The lever can be fitted on either side of the sprayer and adjusted in length.
- Maximum pressure of 6 bar: Provides controlled delivery for approved plant-protection treatments.
- Pressure gauge: The ergonomic shut-off valve incorporates a pressure gauge so the operator can monitor working pressure.
- Protected internal pump: The pump is positioned inside the tank assembly to help protect it from external damage.
- Comfortable carrying system: Adjustable straps and a moulded back panel help distribute the load during extended use.
- Integrated spray-lance holder: Provides practical storage when transporting or filling the sprayer.
- Integrated measuring cups: Measuring points of 10 ml, 20 ml and 50 ml assist with accurate treatment preparation.
- Central hose outlet: Allows the hose to be routed conveniently for left or right-handed operation.
STIHL SG 71 Technical Specifications
| Sprayer type | Manual backpack sprayer |
|---|---|
| Tank capacity | 18 litres |
| Maximum working pressure | 6 bar |
| Maximum flow rate | 1.4 litres per minute |
| Dry weight | 4.8 kg |
| Hose length | 1,500 mm |
| Maximum tool length | 510 mm |
| Product width | 398 mm |
| Maximum permitted solution temperature | 40°C |
| Manufacturer part number | 42550194970 |
Who Is the STIHL SG 71 Suitable For?
The SG 71 is particularly well suited to customers who need to cover more ground than would be practical with a small hand-held pressure sprayer. Typical users include:
- Professional gardeners and landscapers
- Grounds-maintenance teams
- Nurseries and horticultural businesses
- Smallholders and estate managers
- Fruit and vegetable growers
- Customers managing larger lawns, planted areas or boundaries
Only use plant-protection products that are specifically approved for use in sprayers, and always follow the treatment manufacturer’s instructions, dilution rates and personal-protective-equipment requirements.
Why Masseys Recommends the STIHL SG 71
At Masseys, we recommend the STIHL SG 71 to customers who want the capacity of a professional backpack sprayer without the additional cost and maintenance of a powered machine.
Its main advantage is the balance between capacity and empty machine weight. The SG 71 holds 18 litres, compared with 12 litres in the smaller SG 51, while the dry sprayer itself is only approximately 0.3 kg heavier before treatment solution is added. This makes the SG 71 a particularly practical choice when reducing the number of refilling stops is more important than keeping the filled operating weight as low as possible.
The adjustable left or right-hand pump lever, integrated pressure gauge and protected internal pump also make it a more refined choice than a basic backpack sprayer.
Explore our complete range of STIHL sprayers, view all garden sprayers, or browse more equipment from our STIHL machinery range.
Choosing Between the STIHL SG 51, SG 71 and SGA 60
Choose the STIHL SG 51 when:
- A 12-litre tank is sufficient.
- You normally treat smaller areas.
- Reducing the filled carrying weight is the main priority.
View the STIHL SG 51 backpack sprayer.
Choose the STIHL SG 71 when:
- You want a larger 18-litre tank.
- You regularly treat wider areas.
- You want professional controls without needing a battery.
- You are comfortable operating a manual pump lever.
Choose the STIHL SGA 60 when:
- You prefer battery-powered pressure rather than manual pumping.
- You already use compatible STIHL battery equipment.
- You regularly undertake longer or more frequent spraying work.
View the STIHL SGA 60 cordless sprayer.
Safe Use and Treatment Compatibility
Read the STIHL instruction manual before first use. Only apply substances specifically approved for use with plant-protection sprayers, and follow the chemical manufacturer’s mixing, application and protective-equipment instructions.
Do not use the SG 71 with flammable, highly corrosive, caustic, sticky or excessively viscous liquids. Do not fill it with liquids above 40°C. Application should take place outdoors or in a well-ventilated area and should be avoided in windy conditions where spray could drift.
Frequently Asked Questions
Is the STIHL SG 71 battery powered?
No. The STIHL SG 71 is a manual backpack sprayer. Pressure is generated using the pump lever, so it does not require a battery, petrol engine or mains power.
What is the capacity of the STIHL SG 71?
The SG 71 has an 18-litre solution tank.
How much does the STIHL SG 71 weigh?
The dry weight is 4.8 kg before water or treatment solution is added.
What is the maximum pressure?
The SG 71 has a maximum working pressure of 6 bar.
Can the pump lever be used on either side?
Yes. The pump lever can be fitted on the left or right-hand side and adjusted in length to suit the operator.
What is the difference between the STIHL SG 51 and SG 71?
The principal difference is capacity. The SG 51 holds 12 litres, while the SG 71 holds 18 litres. The SG 71 is therefore better suited to larger areas and work where fewer refilling stops are desirable.
Can I use weed killer in the STIHL SG 71?
The sprayer may only be used with treatments that are specifically approved for application through plant-protection sprayers. Always check the treatment label, observe the stated dilution rate and wear the required protective equipment.
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