How To Replace The Lining Of Jaw Crusher?

Jaw crusher is popular and loved in sand and gravel plants for its advantages of simplicity, firmness, wear resistance and easy maintenance. However, because large stones are often crushed, wear-resistant parts are easily damaged during operation. Liners, thrust plates and eccentric shafts are the main wear-resistant parts. So today, let's learn in detail how to replace the liner and teach you how to extend the service life?

How To Replace The Liner Of A Jaw Crusher?

The liner is the main carrier of strong friction and impact during the crushing process. It undertakes the task of grinding and is a key component that restricts the processing capacity of the jaw crusher. It is particularly important to replace the liner of the jaw crusher in time.

1. Replacement method

When the liner is initially worn, the liner can be turned around or the upper and lower pieces can be turned around. The wear of the jaw plate is mainly in the middle and lower parts. When the tooth height is worn by 3/5, a new liner needs to be replaced. When the liner on both sides is worn by 2/5, a new one also needs to be replaced.

2. Precautions for lining installation

Since the surface of the lining is usually cast into a wavy or triangular shape, the tooth peaks and tooth valleys of the two linings are opposite to each other in a good concave and convex manner. Such linings not only produce an extrusion effect on the material, but also produce bending and splitting effects. Make the material easy to crush. The tooth peak angle of the lining is generally 90°2~1°. A wavy surface should be used for coarse crushing, and the angle should be larger.

How To Extend The Life Of The Lining?

1. Since the lining of the jaw crusher is unevenly worn, the lower part usually wears faster. Therefore, in order to extend its service life, the thickness of the fixed plate should be increased. The thickness of the fixed plate can be increased from 70 mm to 140 mm. The angle between the jaw crusher plate and the fixed plate behind the liner can be reduced by 2%, and the crushing efficiency can be increased by 12%.

2. Use a spring anti-loosening and vibration reduction device to solve the loosening of the liner during work, thereby extending the service life of the liner and improving work efficiency.

3. Assembly is also very important. The liner must be firmly attached to the jaw plate, and the two should be leveled. Soft metal (such as lead, zinc, etc.) should be used as a gasket between the liner and the jaw plate, and fastened with bolts.

Buy A Jaw Crusher From Shibang Group

The above is about the liner of the jaw crusher, which is also a common problem in production. In fact, it doesn't have to be so complicated. Buy a jaw crusher from Shibang Group. There is a professional after-sales technical team that can solve these problems for you at any time. Regular maintenance and care will double the service life of the jaw crusher. Free online consultation to a powerful large manufacturer for free inspection.