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Caterpillar 988B loader exhaust

The exhaust system of the Caterpillar 988B loader is engineered with industrial-grade materials capable of withstanding temperatures up to 950 degrees Celsius, ensuring stable performance under heavy-duty conditions. The assembly includes a dual exhaust manifold, reinforced mid-pipe, multi-stage silencer, and vertical outlet. The internal pipe diameter ranges from 90 to 110 millimeters with a wall thickness of approximately 2.2 millimeters. The silencer’s multi-layer ceramic fiber structure reduces noise levels by up to 42 decibels. MIG and TIG welding are used at all joints to prevent gas leakage and improve durability.

In the design of the Caterpillar 988B loader exhaust, the curvature of gas flow channels is optimized to limit pressure loss to less than 10 percent of engine power. The silicone-based surface coating resists oxidation at temperatures up to 920 degrees Celsius. The total system weight is between 25 and 30 kilograms, allowing for direct mounting on the main chassis. A multilayer thermal insulator in the central section prevents heat transfer to the fuel tank and hydraulic system, enhancing operational safety and reliability.
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