The Wieländer+Schill WS 90 air flow reducer valve is a precision device specifically designed to set the optimal operating speed of pneumatic tools, especially mills. Achieving the correct rotational speed is crucial for maximizing the service life of cutting tools and for efficient work execution. This compact valve, made of brass, ensures precise regulation of the air flow, thus contributing to maintaining the quality of automotive repair and metalworking processes.
This accessory is part of the VarioDrill WS 90 product line and is an essential component for any workshop aiming for the precise and durable use of pneumatic mills.
The main function of the WS 90 valve is to reduce the amount of inlet air, which directly influences the speed of the driven tool (e.g., the mill).
Increased Service Life: Excessively high rotational speed significantly reduces the service life of the mill. The WS 90 valve allows setting the ideal speed specified by the manufacturer, minimizing premature wear of the tools.
Precision Regulation: The brass construction and precise thread usage guarantee the stable maintenance of the set air volume within the specified operating pressure limits.
Compact Design: Due to its small dimensions (43 x 25 x 13 mm), it can be easily integrated into existing pneumatic systems without taking up significant space.
Robust Material Usage: Thanks to its brass material, it resists the mechanical stress and corrosion typical of a workshop environment.
The table below details all important technical parameters of the WS 90 air flow reducer valve.
| Property | Value | Note |
|---|---|---|
| Part number | 604105 | Product Identifier |
| Application | Air Flow Reducer Valve | For Speed Adjustment |
| Material | Brass | Excellent durability |
| Internal Diameter (Ø) | 11.5 mm | The air flow cross-section |
| Total Length | 43 mm | The length of the valve |
| Dimensions (Length x Width x Height) | 43 x 25 x 13 mm | External physical dimensions |
| Maximum Operating Pressure | 10 bar | The safe operating limit of the valve |
| Connection Thread | 1/4″ | Standard pneumatic connection |
| Weight | 0.069 kg | Light weight |
The WS 90 valve is the ideal accessory for the VarioDrill WS 90 systems offered by Wieländer+Schill and other pneumatic mills with a 1/4″ connection. It is primarily recommended for automotive repair operations where precise material removal is required, and where optimizing the service life of the milling head is economically important. Using the valve avoids overworking, which would lead to overheating and rapid failure of the tools.
This product is part of the broader product range from Wieländer+Schill, which includes XSeries riveting technology, welding technology, panel separation tools, and dent removal systems, providing the complete toolkit necessary for professional auto body repair.
Wieländer+Schill is committed to the highest quality standards. Manufacturing processes are overseen by strict quality management systems, validated by the following certificates:
ISO 9001: Quality Management System Certificate.
ISO 14001: Environmental Management System Certificate.
These certificates guarantee that the WS 90 air flow reducer valve is a reliable, consistently high-quality product that meets international expectations.
Purchasing the WS 90 valve is not just buying a component, but an investment in tool longevity and workflow efficiency. Installation is simple and fast thanks to the standard 1/4″ connection.
