Automotive Accessories
 Automotive Accessories

Motorcycle Cylinder

As the heart and skeleton of a motorcycle's powertrain, this aluminum alloy die-cast motorcycle cylinder block utilizes integrated precision craftsmanship to reshape the stability of the powertrain. Integrating complex oil and air paths and support structures, it provides the triple guarantee of "lightweight, strong, and precise adaptation" to the engine under extreme operating conditions such as high speeds (≤12,000 rpm) and high vibration (≤5g acceleration). Suitable for a wide range of motorcycles, from street bikes to racing bikes and off-road vehicles, it helps push the boundaries of motorcycle power, ensuring every roar comes from industrial-grade, reliable support.

Product Features:

 

1. Aviation-Grade Aluminum-Based Materials: A Balanced Approach to Power and Weight Reduction
Material: Utilizing ADC12 high-strength aluminum alloy with a density of only 2.7g/cm³, it reduces weight by 55% compared to cast iron cylinder blocks, effectively reducing unsprung mass and improving handling flexibility. With a tensile strength of 330MPa and a yield strength of 280MPa, it can withstand motorcycle torque shocks of 150-300N·m.
Lightweight Design: Through topological optimization, the cylinder block wall thickness in key stress-bearing areas is reduced to 3mm, while the non-stress-bearing areas are thinned to 1.6mm. This achieves a further 15% weight reduction while maintaining strength, contributing to an 8% improvement in motorcycle acceleration performance.


2. Die-casting Breakthrough: Complex Structures Molded in One Shot
Precision Integration: Complex features such as the oil circuit (Ø3mm diameter), air channel (12mm depth), and cooling fins (1.8mm spacing) are die-cast in an integrated fashion, eliminating gaps and stress concentrations associated with traditional splicing processes. This improves cylinder block assembly precision by 40%, with power transmission deviation ≤0.02mm.
Technical Breakthrough: Overcoming the challenges of deep-cavity die-casting (mold draft angle ≤0.8°) and multiple undercuts (six complex structures). The internal porosity is ≤0.8%, and leak-free after 300 hours of airtightness testing, equivalent to 80,000 kilometers of reliable operation on a motorcycle.


3. Structural Design: Mechanical Optimization "Customized" for the Engine
Reinforced Cooling Fins: 16 longitudinal fins + 8 transverse fins form a "honeycomb cooling grid," increasing the cylinder block's heat dissipation area by 50%. Combined with the oil cooling system, this reduces engine operating temperature by 18°C and extends the oil expiration period by 30%. Precision Fit Interface: The cylinder block mounting holes achieve a ≥99.5% fit with the crankshaft and piston assembly, ensuring zero power transmission lag. Compatible with a variety of engine architectures, including single- and twin-cylinder models, with a compatibility rate exceeding 95%.
Impact Resistance: Triangular reinforcement ribs at the bottom of the cylinder block effectively protect against high-frequency vibrations (≤5g acceleration) experienced in off-road conditions, reducing engine NVH (noise, vibration, and harshness) by 10dB and improving riding comfort by 22%.


4. Advanced Performance: Confidence in Extreme Conditions
Wear Protection: The surface is hard-anodized, creating a 10-15μm thick oxide film that improves wear resistance by 60%, protecting against friction damage to components like piston rings and valves, and extending engine overhaul intervals by 40%.
Fatigue Resistance: Passed 800,000 alternating stress cycles, the test results show a 45% reduction in fatigue fracture probability. Suitable for extreme conditions such as racing and off-roading, it meets the high-load, long-life motorcycle requirements.

 

5. Customized Ecosystem: Full-chain Support from R&D to Mass Production
Multi-Model Adaptation: Supports customized cylinder blocks for motorcycles ranging from 150cc to 1000cc, covering diverse application scenarios such as street, racing, and off-road. With a mold development cycle of 28 days or less, the system rapidly responds to market demand.
Digital Collaboration: Providing 3D digital models and MBD (Model-Based Definition) data, it helps motorcycle OEMs digitize the entire process from "virtual assembly - simulation verification - mass production," improving development efficiency by 45%.


6. Green Manufacturing: Sustainable "Hidden Value"
Material Recycling: Aluminum alloy is 100% recyclable, and the production process reduces carbon emissions by 65% compared to cast iron parts, aligning with the "dual carbon" goals and helping OEMs create "green power" products.
Energy Efficiency Optimization: Compared to traditional machining, the die-casting process reduces production energy consumption by 42%, reducing the environmental impact of the manufacturing process and providing dual value for "cost reduction and emission reduction" in the motorcycle industry.