STIHL WSA 40 Cordless Pressurised Water Container Set – 10L Battery Water Supply with AS 2 Battery & Charger

The STIHL WSA 40 Cordless Pressurised Water Container Set is a powerful and convenient battery-powered water supply system designed for use with cut-off machines during wet cutting applications. Ideal for professional tasks in construction, civil engineering, and landscaping, the WSA 40 automatically delivers a consistent water flow to cool the cutting wheel and reduce airborne dust — without the need for manual pumping.

Supplied as a complete set with an AS 2 battery and AL 1 charger, the WSA 40 is the perfect solution for job sites where a direct water connection is not available, allowing you to work efficiently and safely in remote locations.

Automatic Water Supply for Wet Cutting

The WSA 40 features a battery-powered pump head that maintains constant pressure throughout operation. This ensures a steady and reliable water flow when cutting concrete, stone, or masonry with a cut-off machine. By binding dust particles and cooling the cutting disc, it helps improve cutting performance while creating a cleaner and safer working environment.

High-Capacity 10L Tank with Easy Filling

The robust 10-litre transparent tank provides ample water capacity for extended cutting work. The funnel-shaped opening allows easy filling, while the integrated level indicator ensures you can monitor the water level and avoid overfilling.

A built-in filter helps prevent debris from entering the system, protecting the pump and maintaining reliable performance.

CONSTANT POWER Technology

Unlike many battery-powered tools that lose performance as the battery discharges, the WSA 40 benefits from STIHL CONSTANT POWER technology. Intelligent electronics ensure consistent pump pressure and water delivery throughout the entire battery charge, maintaining reliable performance from start to finish.

Adjustable Pressure Control for Precise Water Flow

The operating pressure can be variably adjusted using the control dial, allowing you to optimise water flow for the specific cutting task. This ensures efficient dust suppression and cooling while minimising unnecessary water usage.

Smart Battery Management

An integrated LED charge-level indicator allows you to check the remaining battery capacity at any time. This helps you plan work effectively and recharge the battery when needed.

The system also features an automatic sleep mode which activates when the container is empty or the machine is not in use, helping to conserve battery power.

Durable Construction with IPX4 Protection

Designed for demanding job site conditions, the WSA 40 features an IPX4 splashwater protection rating, meaning it is protected against water splashes from all sides. The battery compartment is sealed to protect against water, liquids, and dust, allowing reliable operation in wet or dusty environments.

Portable and Easy to Use

• Soft-grip carry handle for comfortable transport
• Pressure relief valve for safe operation
• 4-metre water hose with standard coupling for easy connection to cut-off machines
• Simple push-button start and adjustable pressure dial

Compatible with STIHL AS System Tools

The removable battery-powered pump head can also be used with other STIHL equipment, including:

• STIHL SG 31 sprayer
• STIHL TS pressurised water tank
• STIHL SGA 30 sprayer

Included in the Set

• 1 × STIHL WSA 40 Cordless Pressurised Water Container
• 1 × AS 2 Lithium-Ion Battery (28 Wh, 10.8 V)
• 1 × AL 1 Standard Charger
• 4 m water hose with coupling

Runtime with AS 2 Battery

• Up to 30 minutes of working time
• Equivalent to approximately 5 full tanks when used with WSA 40 or TS pressurised water tank
• 10–12 tanks when used with SGA 30 / SG 31 sprayers

Key Features

• Battery-powered pressurised water tank for cut-off machines
• 10L transparent tank with level indicator
• Automatic pump eliminates manual pumping
• CONSTANT POWER technology for consistent performance
• Adjustable pressure control for precise water delivery
• IPX4 splashwater protection for job site use
• 4 m hose with standard coupling
• Includes AS 2 battery and AL 1 charger
• Ideal for construction, masonry, and landscaping work

The STIHL WSA 40 Cordless Pressurised Water Container Set provides a reliable, portable water supply solution for wet cutting tasks, helping professionals achieve cleaner cuts, improved dust control, and greater flexibility when working away from fixed water sources.

Technical Specifications

¹⁾The indicated working times per battery charge are indicative and may vary depending on the application and operating mode²⁾The specified number of filled-up tanks per battery charge may vary depending on the application.

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