Lüdecke - Main Catalogue Page 204
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Top Quality for Safe Working High-Risk Potential Caused by Inferior Material Again and again, you will find cheap copies of claw couplings and their matching hose clamps on the market. They are mostly manufactured in the Far East. Lack of functionality However, using such products comes with a high-risk potential: On the one hand, many cast components have great tolerances. Often, the couplings can no longer be tightly connected and or lead to leakages. Moreover, due to the unproperly casted hose barbs and high tolerances of the clamps, a safe fitting of a hose cannot be guaranteed! High Potential of Fractures As these copies are often produced with low-quality and non-approved materials such as chilled cast iron (white iron), the products may easily fracture under high strain (i.e. when installed in strongly vibrating construction machines with compressed air). Using such unsuitable products poses a high liability risk! Fracture test - left: hose clamp (no crack/ fracture), right: hose clamp from the Far East (complete fracture) Safety with High-Quality and Standardised Components To avoid these great safety risks, pay attention to the following: • White iron and other inferior materials are hard and very brittle due to their high amount of cementite steel. As a result, they are inappropriate materials for high stress applications • The production of malleable cast iron is more timeconsuming and expensive as it undergoes an additional annealing treatment. However, this provides malleable cast iron with enhanced mechanical properties and makes it perfect for extreme conditions. • Only components should be sold and used which follow the current standards (DIN 3489, DIN 3238, DIN 20039) and show the obligatory manufacturer‘s branding. Original Claw Coupling according to DIN 3489 The products of the permanent use. 204 Counterfeit from the Far East (no manufacturer‘s branding, inferior material) construction range undergo continuous, strict quality tests. In this way, we always guarantee high reliability for
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