1447011251/1447011261 End Bits Blades Komatsu Bulldozers

1. Super wear-resistant and damage-resistant structure: 1447011251/1447011261 End Bits adopts carbon-boron alloy steel substrate, which is strengthened by multi-stage vacuum heat treatment and deep cold process to achieve HRC 58-62 surface hardness and toughness balance.

• Grain refinement technology: Internal stress concentration is eliminated through temperature-controlled forging, and the ability to resist microcrack extension under dynamic load is increased by 40%
• Composite strengthening layer: Surface high-frequency induction quenching + boronizing treatment forms a 0.8-1.2mm dense hardened layer, and the wear resistance index reaches ASTM G65 standard Level 3
• Actual combat verification: Under the condition of continuous crushing of basalt, the service life is extended by 2.3 times compared with conventional alloy parts

2. Precise adaptation to Komatsu engineering system: 1447011251/1447011261 End Bits is based on Komatsu Tier4 Final model hydraulic dynamics parameter optimization design, through finite element topology analysis to achieve structural stress peak dispersion:

• Three-dimensional contour matching: ±0.05mm tolerance control, to ensure zero gap with D61/D65/D85 series bulldozer blade U-shaped slot
• Multi-axis load transmission: patented 45° composite groove design, vertical pressure is decomposed into axial/tangential dual vector load, reducing the risk of 35% fatigue damage to the pin connection point
• Intelligent anti-deviation system: built-in self-calibration guide edge, under 20° side tilt condition, still maintain cutting track straightness error <3mm/10m

3. Efficient operation performance optimization

• Hypercurvature leading edge (R18/R36 composite surface) breaks through the limitations of traditional single bevel and realizes progressive crushing of hard layer
• 12° negative rake angle tool tip with 3mm reinforced chamfer, ISO In the 13333 standard test, the unit energy consumption was reduced by 22%, and the cutting resistance was optimized to 1.8kN/cm²
• Efficiency gain: During granite peeling operations, the single-cycle footage increased by 28%, and with the intelligent control system, a 30% comprehensive energy efficiency improvement can be achieved

4. Modular rapid maintenance system

• Industry 4.0 compatible design:Pre-processed DIN 6921 standard flange hole (Ø22H7), supporting 10-second rapid disassembly and assembly of hydraulic impact wrench
• Laser etched wear scale (0.5mm scale accuracy) to achieve visual management and preventive replacement decisions
• Multi-directional positioning tenon (JIS B 0951 Class2) ensures that the assembly error of novice operators is less than 0.3°, and the maintenance hours are compressed to 1/5 of the traditional structure
• Severe working conditions verification scenario
• In the surface stripping operation of open-pit coal mines, the tooth blade system successfully achieved: Continuous 36 hours of high-intensity mining (material compressive strength 120-180MPa). The average daily processing volume exceeded 8500m³, and the tool replacement frequency was extended from 6 shifts to 15 shifts. With Komatsu VHP (Variable Horsepower) intelligent hydraulic system, fuel efficiency is optimized by 17%

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