Troubleshooting Low Production from Jaw Crusher in Peru

For jaw crusher operators in Peru, Chile, and Ecuador, a sudden drop in production can significantly impact profitability. When troubleshooting low production from jaw crusher in Peru, the root cause often lies in feed issues, wear parts, or incorrect settings. OCP Mechanical Company’s Type J jaw crusher is built for hard andesite and copper ores, but even robust equipment needs regular checks. Below we outline a systematic approach to identify and fix common problems, helping you restore capacity quickly.

1. Check Feed Size and CSS Adjustment

A frequent reason for troubleshooting low production from jaw crusher in Peru is an improperly set closed side setting (CSS) or oversized feed. If the CSS is too tight (e.g., 80 mm instead of the recommended 120‑150 mm for secondary crushing), the crusher will choke and reduce throughput. Measure the CSS with lead balls or a laser tool. For a 200‑300 tph jaw crusher, a CSS of 100‑140 mm is typical for hard rock. Additionally, verify that the feed size does not exceed 80% of the feed opening (e.g., for a 600x900 mm jaw, maximum feed should be below 480 mm). Oversize feed causes packing and slows production. Note: Product data are constantly updated; for the latest CSS guidelines, please contact our online customer service.

Many mines in Arequipa have regained 15‑20% capacity simply by widening the CSS by 10‑15 mm.

2. Inspect Jaw Plates and Toggle Plate

Worn jaw plates directly affect production. When troubleshooting low production from jaw crusher in Peru, examine the fixed and moving jaw plates. If the tooth profile is worn down by more than 50‑60%, the crusher loses its ability to grip and crush effectively. Replace plates with Mn18%+Cr alloy for extended life in abrasive ore. Also, check the toggle plate – a cracked or deformed toggle plate reduces the crushing stroke. A broken toggle plate should be replaced immediately, as it can lead to pitman damage. All price information in this article is for reference only; contact our team for current estimates.

Operators in Chile’s copper region have reported a 25% production increase after changing worn jaw plates.

3. Evaluate Feed Distribution and Fines Content

Poor feeding practices are often overlooked when troubleshooting low production from jaw crusher in Peru. If the feeder dumps material to one side of the crusher, only half the jaw plates are used, reducing capacity by 40‑50%. Use a vibrating grizzly feeder with a spreader chute to ensure even distribution. Additionally, excessive fines (material already below CSS) in the feed cause packing and reduce throughput. Pre‑screen the feed using a grizzly or a separate screen to remove fines before they enter the jaw crusher. This step alone can increase net production by 15‑25%.

OCP’s technical team can help you analyze your feed profile and recommend feeder adjustments. For a no‑obligation consultation on troubleshooting low production from jaw crusher in Peru, 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 supply genuine replacement parts to get your crusher back to peak performance.