Focus on the sealing surfaces

On a rotary vibrating screen, a seal that is damaged, contaminated or incorrectly seated can create an unintended path around the screen assembly. Product changeover provides an opportunity to inspect these surfaces before the next batch. The required seal material depends on the process and cleaning method.

Open the assembly under the approved procedure

Stop and isolate the equipment before releasing clamps or removing a screen frame. Support components as described in the manual. Keep removed parts on a clean surface and maintain their identification so different seal profiles are not mixed during reassembly.

Check condition before reusing a seal

Remove residue with an approved method. Inspect the seal for cuts, cracks, deformation, swelling and embedded particles, including the contact surfaces around the frame. A seal that looks clean may still be damaged. Compare it with the specified profile and replace it if its condition does not meet the equipment or site acceptance criteria.

Check the fit without improvising

Clean the mating surfaces and seat the seal evenly. Confirm orientation and clamp engagement using the manufacturer instructions. Do not compensate for a damaged seal by applying extra tightening force, adding packing or using an unapproved sealant. Such changes can affect the fit of the assembly.

Document the changeover

Record the seal inspection, replacement details and product change. Complete the required cleaning verification before releasing the line. After restart, check for leakage from a safe position and confirm separation using the site sampling method. When requesting rotary vibrating screen seal support from Tianteng, provide the machine identification, seal dimensions and process cleaning conditions.