
1. Adopts layered crushing principle to achieve high efficiency and low over-crushing during primary crushing, with uniform finished product particle size, meeting the needs of various working conditions. 2. The whole machine adopts high-strength materials and mature structural design, combined with hydraulic protection, thin oil lubrication and high-efficiency dust-proof system, ensuring long-term stable operation of the equipment. 3. Compact structure, convenient installation and commissioning, low maintenance cost, widely applicable to various crushing scenarios such as mining, construction and metallurgy. Product Performance

1.High Wear Resistance: Copper bushings are made of wear-resistant alloy materials, combined with lubricating oil film protection, with a service life increased by more than 30% compared to ordinary components, suitable for long-term operation under complex working conditions. 2.Easy Maintenance: Modular design allows for quick replacement of wearing parts such as copper bushings without overall disassembly of the main engine. Combined with the equipment's overall maintenance channel design, it reduces downtime for maintenance. 3.Strong Stability: The transmission gear adopts high-precision meshing design, featuring low operating noise (≤85dB) and small vibration amplitude, ensuring the equipment stably produces products with uniform particle size for a long time. 4.High Versatility: Suitable for all models of the HPL Series, with standardized core dimensions. Spare parts can be used across models, reducing customer inventory costs.

The cone crusher step plate (main shaft step plate) is a key load-bearing and structural component, primarily responsible for axial load transmission (handling several tons in medium-sized crushers), positioning/guiding the main shaft and moving cone, and providing mechanical support to reduce vibration. Structurally, it is a disc-shaped part made of high-strength alloy steel (40CrNiMoA/35CrMo) with a 30–80 mm thickness. It features a central hole (±0.05 mm tolerance) for main shaft fit, step features (10–30 mm height, 20–50 mm width) interacting with thrust bearings, and 8–24 mounting holes for high-strength bolts (grade 8.8+). Manufacturing involves: Casting: Alloy steel melting (1500–1550°C), sand mold casting, followed by normalization (850–900°C) and quenching-tempering (820–860°C quenching, 500–600°C tempering). Machining: Rough turning (2–3 mm allowance), precision grinding (Ra0.8–1.6 μm surface finish, ±0.02 mm dimensional tolerance), and drilling/tapping (±0.1 mm positional tolerance for holes). Surface treatment: Shot-blasting and anti-rust coating (80–120 μm). Quality control includes material testing (chemical composition, tensile strength ≥980 MPa for 40CrNiMoA), dimensional inspection (CMM and gauges), NDT (ultrasonic/magnetic particle testing for defects), and assembly/performance validation to ensure fit and stability

The cone crusher counterweight guard, a protective and structural component surrounding the counterweight and eccentric bushing, functions as a safety barrier against rotating parts (500–1500 rpm), blocks contaminants, reinforces stability, and reduces noise. Structurally, it consists of a 4–8 mm thick annular body (Q235/Q355B steel or HT250 cast iron), mounting flanges with bolt holes, 1–2 access doors, reinforcement ribs, ventilation slots, lifting lugs, and an 80–120 μm corrosion-resistant coating. Manufactured via steel plate welding (plasma cutting, rolling, MIG welding) or sand casting (1380–1420°C pouring) with annealing, it undergoes CNC machining for flange flatness (≤0.5 mm/m) and surface finishing. Quality control includes material testing, weld inspection (DPT), impact testing, dust tightness checks (0.1 MPa pressure), and safety validation (ISO 13857 compliance). This ensures reliable protection and durability in mining/aggregate operations

The cone crusher head ball, a critical pivot component atop the moving cone, supports axial crushing loads (tens of thousands of kN), guides eccentric rotation (5–20 mm amplitude), reduces wear, and maintains alignment between the moving cone and concave. Structurally, it features a hemispherical/spherical head (radius 50–300 mm) of GCr15/42CrMo with a 2–5 mm hardened layer (HRC 58–62), a shaft neck, transition fillet (radius 10–30 mm), and lubrication groove. Manufactured via closed-die forging (1100–1200°C) or investment casting, it undergoes quenching/tempering (core HRC 25–35) and induction hardening. Precision machining (CNC grinding) achieves Ra0.1–0.4 μm surface roughness and ≤0.01 mm spherical tolerance. Quality control includes material spectrometry, hardness testing, UT/MPT for defects, and fatigue testing (10⁶ cycles). It ensures reliable performance in mining/aggregate processing with compressive strength ≥2000 MPa and minimal wear (≤0.1 mg loss/10⁴ cycles).

The cone crusher counter weight, a key dynamic balancing component mounted on the eccentric bushing, offsets centrifugal forces from eccentric rotation, reducing vibration, enhancing stability (500–1500 rpm), optimizing energy use, and balancing frame loads. Structurally, it comprises a high-density (7.0–7.8 g/cm³) body (HT350/QT600-3), 2–6 annular segments, bolt holes (class 8.8+), locating pins, balancing tabs, and reinforcement ribs, with a corrosion-resistant coating. Manufactured via sand casting (1350–1380°C pouring), it undergoes annealing (550–600°C) and precision machining (CNC turning/grinding) for dimensional accuracy. Quality control includes material testing (density ≥7.0 g/cm³), NDT (UT/MPT), dynamic balancing (≤5 g·mm/kg residual imbalance), and load testing (150% rated force). This ensures reliable operation in mining/aggregate processing by minimizing stress and extending component life.