Parts for Rotary Table Shot Blasting Machines

Product Overview

The core components of the machine are the slewing bearing and the rotary table drive system. In high-dust and high-humidity environments in some countries and regions, abrasive contamination entering the slewing bearing and grease emulsification can cause the turntable to rotate unevenly, produce abnormal noise, or even seize completely in severe cases. Once the turntable sealing ring deteriorates, steel shot may enter the lower bearing area, causing serious damage to the slewing bearing and drive gears. The sealing and lifting condition of the chamber door also directly affect operating efficiency.

Direct Shipping from the Nearest Warehouse: Turntables/rotary tables, slewing bearings, rotary table drive units, segment liners, sealing rings, and chamber door assemblies are stocked in our domestic and overseas forward warehouses. Standard models can be shipped directly from the nearest warehouse within 5–7 days. Large slewing bearings and non-standard diameter turntables can also be customized.

Material Selection & Wear Resistance: The turntable is fabricated from Q345 low-alloy steel plate with stress-relief annealing after welding to ensure good flatness. The slewing bearing is made from 50Mn or 42CrMo steel, with raceway hardness of HRC55–60 after quenching, providing excellent load-bearing capacity and wear resistance. Segment liners are made of high-chromium cast iron and precisely cut and assembled to match the curvature of the turntable. Sealing rings are made from polyurethane or oil-resistant fluororubber (FKM), offering better heat resistance and anti-aging performance than conventional rubber.

Key Tips for Energy Saving and Extended Service Life

• Clean any adhered molding sand, scale, and debris from the turntable surface before each shift to prevent unbalanced loading and one-sided wear of the slewing bearing.
• Slewing bearing lubrication is a key maintenance item. It is recommended to completely replace the high-temperature lithium-based grease every 3 months. During greasing, rotate the turntable slowly so that the grease can fully fill the raceway. If the old grease appears dark gray, black, or milky white, clean the bearing thoroughly before adding fresh grease.
• Check the turntable level with a spirit level every month. If sinking or tilting is detected, inspect the slewing bearing fastening bolts and foundation for looseness. A tilted turntable can alter the sealing clearance, making it easier for steel shot to enter the bearing area.
• Inspect the chamber door sealing strips every quarter for elasticity and replace them promptly if they have hardened. Clean and lubricate the door guide rails every month to prevent rust and sticking in high-humidity environments.