Spring Cone Crusher Parts 127707316 | Bowl Liner & Mantle

Technical Specifications: Spring Cone Crusher Parts (127707316)

The 127707316 Bowl Liner and Mantle set is engineered for the rigorous demands of Spring Cone Crushers.
As leading crusher part suppliers, we recognize that spring cones generate significant vibration and shock loads.
Therefore, our parts are manufactured using premium High Manganese Steel to prevent brittle fracture while maximizing wear life.

Core Advantages: Metallurgy & Precision

Standard alloy steel cannot survive the “tramp iron” release action of a spring cone crusher.
Our Cone Crusher Liner technology focuses on three key pillars:

• Austenitic Manganese Steel: We utilize Mn18Cr2 (High Manganese) instead of medium alloy steel.
  This material has a unique “self-healing” property—the more it is impacted by rock, the harder the surface becomes (Work Hardening), while the core remains ductile to absorb shock.
• Water Toughening Treatment: Castings are heated to 1050°C and water-quenched.
  This ensures the carbides are fully dissolved, preventing the liner from cracking when the springs compress to pass uncrushable material.
• Precision Machined Interfaces: The zinc alloy pouring groove and the hook/wedge seating surfaces are CNC machined.
  This ensures a perfect fit with the head center and adjustment ring, reducing installation time by 20%.

Performance Comparison: Mn13 vs. Mn18

Choosing the right material for your crusher spares is critical for cost control:

Field Diagnosis: When to Replace Part 127707316?

To avoid damaging the costly mainframe of your spring cone, monitor your Wear parts for:

• Spring Bouncing (Ring Jump): If the adjustment ring starts jumping excessively during normal operation, the liner profile may be worn out (loss of parallel zone), causing upward pressure.
• Localized Gouging: Deep pits in the mantle surface indicate that the feed material contains too much tramp iron or the manganese grade is too soft for the rock hardness.
• Zinc/Backing Failure: If the liner rotates (spins) on the head, the backing material has failed.
  This requires immediate replacement to save the Head Center.

Expert Tip: Installation & Run-in

Engineer Advice: For Spring Cone Crushers, the “Bedding-in” process is non-negotiable.
When installing the 127707316 set, ensure you use a high-grade zinc alloy or epoxy backing.
Critical: After the first 4 hours of operation, you must stop and re-tighten the U-bolts or Wedges.
Manganese steel flows under pressure, and the liner will become loose if not re-torqued, leading to catastrophic failure of the threads.

Frequently Asked Questions (FAQ)

Q1: Why is the hardness listed as ~220HB and not 50HRC?
A1: High Manganese steel is supplied in a ductile state (~220HB) so it doesn’t crack during shipping or installation.
It only reaches 50-55 HRC (~550HB) on the surface after it starts crushing rock.
If a liner is 50 HRC out of the box, it is brittle alloy steel and unsafe for spring cones.

Q2: Is part 127707316 compatible with Short Head (SH) or Standard (Std) machines?
A2: It depends on the specific casting shape.
Standard liners are flatter for coarse feed; Short Head liners are steeper for fine crushing.
Please verify your cavity type with our engineering team before ordering Spare parts.

Q3: Can I use this liner for recycling concrete?
A3: Yes.
However, for recycling (which often contains rebar), we recommend our **Mn18Cr2** grade as it resists the cutting action of steel contaminants better than standard Mn13.

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