Sandvik Jaw Crusher Parts

Sandvik Jaw Crusher Parts are key wear-resistant components in the crusher, primarily protecting the crushing chamber from direct impact and abrasion while optimizing crushing efficiency. The following are relevant technical highlights and supply chain information:

I. Liner Types and Functions

1. The movable cone liner (crushing wall) and the fixed cone liner (mortar wall) together form the crushing chamber, crushing the material through compression and impact. The movable cone liner is typically made of high-manganese steel (Mn18Cr2), whose work-hardening properties increase wear resistance to HRC40 and above.
2. Special Design
   Sandvik's "S" liner can handle feed sizes 90% larger than standard liners and features a CSS hydraulic real-time adjustment mechanism for optimized discharge opening control.

II. Correspondence between Models and Liners

1. CH Series

   • CH420: Moving cone liner diameter approximately 1400mm, fixed cone liner thickness 30-50mm, suitable for feed size ≤29mm
   • CH660: Moving cone liner weight up to 1.2 tons, discharge opening adjustment range 13-51mm
   • CH870: Moving cone liner made of high-chromium cast iron, hardness HRC 58-62, discharge opening 10-70mm

2. HP Series

   • HP300: Mantle and concave liners are made of Mn18Cr2Mo alloy, 40-60mm thick, with a discharge opening of 4-35mm.

III. Service Life and Replacement Standards

• Normal Service Life: Typically 6 months, but may be shortened to 2-3 months depending on material hardness, humidity, and feeding method.
• Replacement Timing: Replace the liner when it is worn to 2/3 of its original thickness, cracks appear, or the discharge opening cannot be adjusted.
• Measures to extend life:
  • Control material moisture (e.g., pre-drying) and stone dust content (screening pre-treatment)
  • Use epoxy resin filler (e.g., LD-2788AB) to fill the gap between the liner and the base to enhance cushioning performance.

IV. Installation and Maintenance

1. Installation Steps
   • Clean the cone surface from oil and dirt. Use asbestos liner (8-10mm thick) to isolate the base.
   • Install the liner symmetrically. Apply sealant to the bolts to prevent loosening.
2. ‌Precautions‌
   • Avoid unilateral force and use a material level sensor to control uniform feeding‌;
   • Regularly inspect the contact surface of the spherical bearing seat to prevent uneven wear of the movable cone‌;

V. Procurement and Supply Chain

• ‌Accessory Suppliers‌:
  • Ma'anshan Linglan Machinery Technology offers liners for models such as HP300 and CS440, starting at approximately ¥1,000‌;
  • High-manganese steel movable cone liners can be purchased on the 1688 platform, with prices ranging from ¥150,000 to ¥1.28 million‌.
• Drawing Resources: European production drawings for models such as the CH870/CH890 are available through professional channels.

VI. Technical Optimization Suggestions

• Material Selection: Modified high-manganese steel containing 1.5-2% Cr and 0.3-0.5% Mo is preferred, which can reduce overall costs by 35-50%.
• Cavity Matching: The EC cavity is suitable for large particle sizes (>250mm), while the F cavity can increase the proportion of fine particles to 85%.

If you require specific liner specifications or installation instructions, please provide your equipment model for precise matching.