When should the crusher liner be replaced?
2025-04-07
When Replace the crusher liner This is extremely important, as to prevent damage to the crusher bowl, mantle, and liner seat surfaces of the crushing wall, the crusher liners must be replaced before they wear out. In some cases, even when using high-quality wear parts, liner replacement due to wear can still result in the loss of approximately 50% of the liner's original weight. Therefore, it’s crucial to keep accurate records of liner wear, enabling you to assess the extent of liner deterioration—otherwise, you may sometimes need to shut down the crusher entirely, which could significantly reduce your profits.
Check the following types:
● On the new crusher liner, mark the position where the pinion gear teeth on the adjustment cover drive ring come into contact with the drive ring teeth.
● Record the number of teeth used to compensate for the wear of crusher liners.
● Before moving the bowl, record the total number of teeth moved by the drive ring, and apply a horizontal bushing to the side of the dust-proof housing as a baseline for determining the wear level of the next set of bushings.
● After installing the new bushing set, record the number of teeth moved by the drive ring, and compare this figure with the total count from the initial bushing set.
● Replace the crusher liner When determining the wear condition of the liner plates, please follow the instructions in the relevant crusher manual.
Typically, distortion of the wear profile leads to a reduction in capacity. Other symptoms of severely worn bushings include high power consumption and ring bounce. Additionally, the service life is shortened because wear often concentrates in a small area rather than spreading evenly across the entire cavity—meaning the cavity may need to be replaced before it’s completely worn out. This results in lower utilization rates and higher operational costs associated with increased wear.
For other details, such as technical services and related manuals for the crushing wall and liner plates of the gyratory crusher, please let us know if you need them. Replace the crusher liner Please contact us—Duma Machinery will provide you with excellent service, helping you solve your problems and boost your profits.
Duma Machinery's main products include: mantle and concave liners, crushing walls, and distribution plates for cone crushers; jaw plates, side guards, and pressure bars for jaw crushers; lining plates for ball mills, autogenous mills, and other equipment; impact crusher hammers and impact plates; as well as hammer heads, screen bars, liner blocks, and other wear-resistant alloy steel components for metal shredders.