Tips for Feeding a Jaw Crusher Evenly to Boost Capacity
For jaw crusher operators in Kenya and Ghana, uneven feeding is one of the main reasons for low throughput, premature wear, and unexpected downtime. Knowing tips for feeding a jaw crusher evenly to boost capacity helps you increase production by 10‑20% without changing the crusher. The Type J jaw crusher performs best when the crushing chamber is full and material is spread across the entire width of the jaw plates. Below we share practical feeding techniques based on OCP Mechanical Company’s 40 years of experience.
Use a Vibrating Grizzly Feeder
The most effective of all tips for feeding a jaw crusher evenly to boost capacity is to install a vibrating grizzly feeder (Type F). A feeder with a variable speed drive allows you to control the material flow and distribute it evenly across the jaw opening. The grizzly bars also remove fines below the closed side setting (CSS), reducing unnecessary wear and increasing net capacity. Set the feeder speed so that the material depth in the jaw is about 60‑80% of the opening height. This creates a choke‑fed condition that forces even wear on the jaw plates.
Note: Product data are constantly updated; for the latest specifications of Type F feeders, please contact our online customer service.
Many quarries in Nairobi and Accra have increased jaw crusher throughput by 15‑25% after switching from manual loading to a properly adjusted vibrating feeder.
Maintain a Choke‑Fed Condition
Another key among tips for feeding a jaw crusher evenly to boost capacity is keeping the crushing chamber full at all times. A choke‑fed crusher forces material to distribute side‑to‑side, preventing “horsing” – uneven wear where material falls to one side. Signs of a starved crusher include low power draw (below 50% of rated), coarser product, and uneven wear patterns. To correct, increase the feeder speed or reduce the crusher speed (if variable). A simple level sensor above the jaw can automatically adjust the feeder, maintaining choke feed without operator intervention.
OCP’s Type J jaw crusher can be equipped with a power monitor that alerts operators when load drops below the optimal range. Many mines in the Ashanti region have reduced jaw plate consumption by 20‑30% simply by maintaining choke‑fed conditions.
The above values are for illustration only. OCP continuously improves its products. Contact our online team for the most current data sheet.
Avoid Segregated and Blocky Feed
A third set of tips for feeding a jaw crusher evenly to boost capacity relates to feed size distribution. A feed that contains a high proportion of large, blocky rocks (over 80% of the feed opening width) tends to segregate, with large rocks rolling to one side. To prevent this:
Blend smaller material with larger feed – A well‑graded mix of fines, middling, and coarse flows more evenly.
Use a dump hopper with a rock box – A central discharge point helps spread feed.
Install a level sensor – Automatically adjusts feeder speed to compensate for variable feed size.
Operators in Kenya’s Rift Valley have reported smoother operation and fewer jams after changing their loader dumping pattern and adding a simple rock box.
As a direct‑selling manufacturer, OCP provides factory pricing on feeders, level sensors, and jaw crushers, with local spare parts stock in Nairobi and Accra.
Why OCP Is Your Partner for Efficient Jaw Crushing
Applying these tips for feeding a jaw crusher evenly to boost capacity will immediately improve your plant’s performance. OCP Mechanical Company has over 40 years of history in crushing equipment. We offer:
Free pre‑sale feeder sizing and plant layout advice.
Automation packages for choke‑feeding control.
24/7 online technical support for feeding optimization.
For a no‑obligation consultation and personalized tips for feeding a jaw crusher evenly to boost capacity for your operation, simply click the live chat icon on this page. Our online customer service team is available 24 hours a day, 7 days a week, to answer your technical questions, provide free recommendations, and help you get the most tons per hour from your jaw crusher.
