The internal joint suction arm consists of a parallelogram multi-joints framework supported by an internal spring, a hose with the glass fiber tube coated, high temperature resistant, corrosion resistant PVC and suction hood. The suction hood with adjustable valve of air volume can be rotated 360° to any position. The whole joint is as flexible as human arm, the suction hood is like palm. Operator can pull the hood handle to make it reach any direction and position the arm's length allows, and it can position by itself in the sky without anything to support. FEATURES
• Persistent tightness. • Multiple inlet diameter optional. • Arm keeps position due to self-supporting design. • Fast operation due to particularly flexible adjustment. • User-friendly due to particularly smooth movement of the hood with one hand. • Various options to connect the exhaust arms to fans, stationary devices or via duct work to central extraction and filtration systems
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Audited Supplier 
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