Cast Steel High Rigidity, Layer Crushing; Low Flakiness, High Wear Resistance
Cone Crusher Equipment Overview
The DLHPT series multi-cylinder cone crushers are specifically designed for fine crushing and tertiary crushing in mining applications. The cast steel body offers high rigidity, and the fixed main shaft can handle heavy loads, ensuring no deformation or runout even under heavy-duty, high-impact conditions. The layer crushing principle causes materials to compress against each other, resulting in low flakiness and excellent particle shape in the final product. Tin-bronze sliding bearings replace rolling bearings, offering high load capacity in high-dust, high-impact environments while reducing costs and minimizing downtime risks. The short-head configuration enables ultra-fine crushing with low wear part consumption, making it an efficient choice for fine crushing and shaping in large-scale mines and aggregate production lines.
Cone Crusher Equipment Highlights
High-Rigidity Cast Steel Housing: Advanced cast steel manufacturing ensures no deformation during long-term heavy-duty operation
Ultra-High Load Capacity of Fixed Spindle: Stable crushing force under high-impact, high-load conditions; compact design saves floor space
Laminar Crushing Reduces Needle- and Flake-Shaped Particles: Material is compressed against each other, resulting in a high proportion of fine particles and low needle- and flake-shaped content
Durable Tin-Bronze Bearings: Replaces rolling bearings; offers high load capacity in high-dust environments with low cost and minimal maintenance
Low Wear Part Consumption: Optimized design and material selection reduce both replacement frequency and maintenance costs
Short-Head Design for Ultra-Fine Crushing: Produces finer and more uniform final particle sizes, meeting the requirements for high-grade aggregates and fine ore crushing
Cone Crusher Application Scenarios
Second and Third Stage Fine Crushing in Mining: Fine crushing and third-stage crushing in metal mines such as iron, copper, and gold
Hard Rock Aggregate Shaping: Fine crushing and shaping of hard rocks like granite and basalt, with particle shape meeting standards to eliminate secondary shaping
Premium Aggregate in Quarries: Laminated crushing reduces needle- and flake-shaped particles, enhancing product premium potential
Customized process for hard rock aggregate fine crushing and shaping:
After primary coarse crushing, material (≤200 mm) is fed into the DLHPT multi-cylinder cone crusher. Within the crushing chamber, the material forms a bed for layer-by-layer crushing; mutual compression significantly increases the proportion of fine particles and markedly reduces the occurrence of needle- and flake-shaped particles. The fixed main shaft provides stable crushing force, and the discharge size is precisely controlled via the discharge opening gap. After crushing, the material is classified by a vibrating screen; qualified material is sent to storage or to the sand-making process, while oversized material undergoes closed-circuit re-crushing. The short-head model can control the final product size to ≤19mm. The cast steel body and tin-bronze bearings ensure long-term stable operation in high-dust environments, with an overall line availability rate exceeding 95%.
Service Offerings
Solution Design: Customize chamber configurations (standard/short-head) and discharge opening parameters based on material hardness, feed size, finished product specifications, and production capacity targets.
Equipment Manufacturing: Cast steel housing, fixed spindle assembly, liners, and tin-bronze bearings are all manufactured in-house; cast steel components undergo strict non-destructive testing and quality inspection.
Installation and Commissioning: Engineers travel to the site to complete installation, spindle precision verification, discharge opening calibration, and interlock system commissioning
Operations and Maintenance Management: Wear alerts for liner plates, regular inspections of tin-bronze bearings, pre-stocked spare parts supply, and rapid response to malfunctions
Cone Crusher Project Case Study
Project Location: Fine Crushing Project at the Atacama Copper Mine, Chile
With an ore compressive strength of approximately 260 MPa and a daily processing capacity exceeding 30,000 tons, the original cone crusher’s rolling bearings failed an average of twice per month due to high dust levels. The finished product contained 22% acicular and flaky particles, which impacted beneficiation efficiency. One DLHPT short-head model was selected, achieving a stable operating output of 680 tons per hour, with finished product size ≤19 mm and acicular and flaky particles below 10%. The tin-bronze bearings operated continuously for 10 months without any failures; the flake and needle content dropped from 22% to 9%, resulting in a subsequent increase in grinding efficiency of approximately 15%; the liner replacement cycle is 6 months, an extension of about 50% compared to the original equipment. Customer feedback: “The bearings finally stopped failing, the particle shape has improved significantly, and the mineral processing recovery rate has increased accordingly.”
Technical parameters:
Model
Feed opening size (mm)
Processing capacity (t/h)
DLHPT300
265
220-440
DLHPT500
370
425-790
DLHPT800
375
545-1200
Cone Crusher FAQ
Q: How does the laminar crushing of the DLHPT multi-cylinder cone crusher reduce the content of needle- and flake-shaped particles?
A: Traditional cone crushers, which rely on single-particle compression, tend to produce elongated particles; the DLHPT’s laminar crushing causes materials to compress against each other, resulting in cubical particle shapes, with needle- and flake-shaped particles controllable within 10%. Fixed spindle high load capacity cone crusher The laminar crushing effect of the cast steel cone crusher directly improves aggregate quality and the efficiency of subsequent processes.
Q: What are the advantages of tin-bronze bearing cone crushers over rolling bearing models in high-dust mining environments?
A: Rolling bearings are extremely sensitive to dust; seal failure leads to wear and seizure. Tin-bronze sliding bearings have high dust tolerance, offering strong load-bearing capacity and low failure rates under high-dust impact conditions. Compact structure fine crushing cone crusher Fixed-shaft cone crushers equipped with tin-bronze bearings have significantly lower maintenance costs and downtime risks.
Q: What is the steel consumption of wear parts in high-rigidity cast steel cone crushers used for fine crushing in large aggregate production lines?
A: The cast steel body provides high rigidity, ensuring uniform stress distribution within the chamber and preventing load imbalance, which results in even wear on the liners. Low steel consumption wearing parts cone crusher The layered crushing mechanism reduces the impact on individual particles, lowering the steel consumption of wear parts by approximately 30% compared to traditional cone crushers. Combined with customized liner alloy solutions, this further optimizes wear life and operational costs.
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