Project Name: PM11 Pulper Gearbox Retrofit

Project Time: 2023

Selected Model: QVRL2 - CUN

Number of Units Delivered: 1

Design Advantages: Designed in Belgium, with a focus on retrofitting the liquid nitrogen cold - fitting. The assembly tolerance is strictly in accordance with the original standard, ensuring that the service life of the high - speed shaft and intermediate shaft is not less than 50,000 hours, and the service life of the low - speed shaft bearing is not less than 100,000 hours.

Retrofit Focus: The original OIL - LOCK sealing structure at the high - speed end of this gearbox did not actually take into account the dusty and humid environment during use. The contact surface between the sealing ring and the high - speed shaft is small, making oil leakage likely. The high - speed end flange has been redesigned and replaced with a double - lip multi - layer structure to achieve the best use effect.