Sandvik CJ612 Jaw Crusher

• What is a jaw crusher?

  Aug 08, 2025

  When it comes to crushers, many people immediately think of the jaw crusher. It's a vital piece of machinery in industries like mining, construction, and building materials. Its simple structure and high durability have made it a firm favorite in the crushing equipment market. So, what exactly is a jaw crusher? The core operating principle of a jaw crusher is simple: the relative motion of its two jaws compresses, bends, and splits the material, breaking it into smaller pieces. Its main components include the Pitman assembly, bearing housing, and main frame. Metso Sandvik C63,C80,C95,C96,C100,C110,C120 ,C130,C125,C140,C145,C150,C160,C200 CJ408,CJ409,CJ411,CJ412,CJ612,CJ613,CJ615,CJ815, JM806,JM907,JM1108,JM¹206,JM1208,JM1211,JM1312,JM1511,JM1513 The pitman assembly is constructed of high-quality steel castings and is driven by two large cast steel or cast iron flywheels. Furthermore, a forged heavy-duty eccentric shaft and four large, identically sized spherical roller bearings give the C Series jaw crusher exceptional reliability. Labyrinth seals protect the bearing grease from contamination. The integral cast steel bearing housing ensures a seamless fit with the crusher frame and avoids unnecessary loads on the bearing frame, which are unavoidable with a two-piece bearing housing. The C Series jaw crusher can meet the demands of continuous operation around the clock throughout its service life, but it will eventually require some maintenance. Because it uses cast steel components, the crusher can be economically repaired or restored even after years of operation. This same repair would be costly, or even impossible, for crushers with other constructions.   Because the jaw crusher is good at coarse crushing (crushing large pieces of materials of tens of centimeters or even more than one meter into tens of millimeters), the jaw crusher is almost the "first process" of all crushing production lines, so we also have very strict control over the quality of the accessories production. Produce Test  

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• What is daily maintenance for a jaw crusher?

  Sep 05, 2025

  The jaw crusher is a core piece of crushing equipment in industries like mining and construction. Its stable operation directly impacts production efficiency. Routine maintenance not only reduces downtime due to failures but also significantly extends the equipment's service life.   Pre-Startup Inspection Check the tension of the V-belt, jaw plate, and the tightness of all bolts. Inspect the equipment casing and frame for cracks and loose bolts.  Check the oil level in the hydraulic tank to ensure it is between the oil gauge lines. Check the hydraulic quality and verify that the hydraulic pump is operating properly and that there are no leaks in the oil pipes.  Clear any remaining material from the feed inlet to avoid stalling during startup. Check the discharge opening clearance to ensure it meets production requirements to prevent substandard crushing or equipment overload.   Inspection During Operation Bearing temperature is within the normal range. The tie rod spring is normal.     Regular Maintenance After Shutdown Lubricate every 40 operating hours. Lubricate the discharge opening adjustment device and inspect the rubber cover (for mechanical adjustment of the discharge opening). Inspect the cheek plates for wear and replace if necessary. Check the toggle plate for alignment, straightness, and cracks. Inspect the toggle plate seat and rubber seal, and clean the toggle plate seat surface if necessary. Check the tightness of the frame mounting bolts. Inspect the flywheel. Inspect the rubber shock absorber pads for wear.  

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