Explore our premium range of CE-certified electric vehicles, engineered for smart transit, heavy utility delivery, and daily urban commuting.
Understanding the role of automotive-grade crankshaft components in hybrid, range-extended (REEV), and complete new energy powertrains.
As the global automotive landscape pivots towards complete electrification, the engineering definition of the "crankshaft" is undergoing a sophisticated transformation. While pure Battery Electric Vehicles (BEVs) utilize high-torque electric motors that bypass traditional piston-based drivetrains, Hybrid Electric Vehicles (HEVs), Plug-in Hybrids (PHEVs), and Range Extended Electric Vehicles (REEVs) rely heavily on ultra-efficient, compact combustion engines to generate auxiliary electricity. The engine crankshaft in these systems must operate under severe high-RPM cycles, intense thermal stress, and rapid start-stop sequences.
As a leading supplier certified to European standards (CE mark), our manufacturing facility produces crankshafts and high-end drivetrain sub-assemblies designed to meet these exacting specifications. Operating out of our advanced digital factory, we bridge the gap between high-precision metallurgical components and structural vehicle assemblies. Our integrated production capabilities ensure that from the micro-balancing of a hybrid range-extender crankshaft to the robust frame design of custom commuting e-bikes and cargo trikes, every single unit matches global standards of reliability, mechanical strength, and environmental safety.
Through severe testing processes—including finite element analysis (FEA), non-destructive testing (NDT), and high-frequency induction hardening—our crankshafts offer optimal fatigue limit profiles and extreme structural resilience. These technical advantages directly minimize torsional vibration and lower NVH (Noise, Vibration, and Harshness) metrics, paving the way for silent, reliable hybrid electric mobility.
A decade of leadership in engineering, precision assembly, and green mobility solutions.
Founded in 2015, Aurora Electric Vehicle Shandong Co., Ltd. is a professional electric vehicle and precision mechanical components manufacturer located in Linyi City, Shandong Province. Linyi is a core transportation hub connecting the Yangtze River Delta and the Bohai Economic Circle, providing us with prominent geographical advantages, smooth logistics, and access to first-rate industrial supply chains.
As a manufacturer deeply rooted in the electric mobility sector for over 10 years, we have grown from a local assembly workshop into a comprehensive enterprise integrating scientific R&D, high-end production, global sales, and complete after-sales support. We have actively participated in the high-quality development of China's electric vehicle sector, aligning all operations to comply with local and global regulatory changes.
Our commitment to engineering excellence allows us to deliver diverse solutions: from lightweight commuter e-bikes to advanced drivetrain elements like electric vehicle crankshafts intended for secondary power generation modules. By merging mechanical engineering expertise with robust assembly practices, we ensure our global partners receive highly reliable, certified products.
How we scaled from custom engineering to international compliance and smart manufacturing.
Established our manufacturing facility in Linyi, Shandong, focusing on structural frames, drivetrain assemblies, and lightweight electric utility chassis layouts.
Invested heavily in modern CNC machinery and chemical-metallurgy labs to produce high-durability mechanical parts, including shafts and power couplers.
Upgraded our production lines in response to global environmental and safety standards. Optimized all components to comply with fire retardant, anti-tampering, and speed-limit directives.
Acquired full CE, CCC, and FCC certifications for our entire vehicle catalog and key drivetrain assemblies, unlocking deep supply channels into Europe and the Americas.
Adopted intelligent digital manufacturing, real-time quality control scanning, and automated metallurgy analysis to meet the rigorous demands of range-extended electric vehicles globally.
How cutting-edge materials and manufacturing processes are redefining the efficiency limits of next-generation NEV powertrains.
Standard carbon steel cannot withstand the continuous thermal cycles of hybrid electric systems. We utilize high-grade micro-alloyed steel (such as 42CrMo4 and 38MnVS6) that features vanadium and titanium additions. This results in ultra-fine grain structures, elevating overall fatigue limit and tensile strength without adding unnecessary weight.
By employing sophisticated deep-hole drilling and internal bore-finishing technologies, we construct lightweight, hollow-center crankshafts. This design reduces rotational inertia by up to 18%, allowing range-extending generators to spin up instantly, reducing fuel burn and optimizing charging performance.
To eliminate friction losses and prevent premature bearing wear, our crankshaft pins undergo induction hardening up to 58-62 HRC, followed by super-finishing. This process achieves a surface roughness (Ra) of less than 0.1 microns, enabling the use of ultra-low viscosity oils (0W-16 or 0W-8) for maximum system efficiency.
Over the next decade, the integration of advanced drivetrains into electric vehicles will demand extreme optimization. We are actively developing smart sensor integration within crankshaft journals to monitor torque variations and bearing wear in real time. This predictive diagnostic system will feedback directly into the vehicle's central ECU, ensuring safer operations, zero downtime, and long-lasting vehicle reliability.
Our human capital is our primary competitive advantage, driving engineering innovation and customer satisfaction.
Our R&D team consists of senior engineers with more than 10 years of experience in the electric vehicle and mechanical component industries. They are committed to technological innovation, focusing on battery management, drivetrain balance, and structural reliability. They have secured numerous patents for electric motors and crankshaft balancing systems.
Composed of highly skilled technicians who undergo continuous, rigorous training. Our workers manage advanced processes from metal forging inspections to final micrometric balancing. They adhere to tight tolerances and implement QA checks at every production stage to guarantee zero-defect shipments.
Customer-centric experts providing efficient communication and one-stop customized OEM/ODM services to international partners. They resolve complex queries concerning technical modifications, logistics, import regulations, and after-sales support, helping global buyers choose the right setup for their local markets.
Demonstrated quality, electrical safety, and mechanical compliance verified by leading international bodies.
Blending the cultural heritage of Linyi with cutting-edge engineering and low-carbon solutions.
Corporate culture is the soul of our enterprise, integrating the spirit of Linyi, a famous historical and cultural city, with the concept of green travel. Our core values are "integrity, pragmatism, innovation and win-win", which run through every link of enterprise operation.
We advocate the corporate mission of "making green travel easier and safer for everyone", adhering to the development concept of environmental protection and energy conservation, and committing to producing high-quality, energy-saving and environmentally friendly electric bicycles that meet the needs of modern people's short-distance travel, contributing to the construction of a low-carbon society.
We pursue excellence in product quality, regard product safety as the lifeline of the enterprise, invest a lot of funds to build a professional testing laboratory, and conduct strict tests on every product in terms of load-bearing, waterproof, fire resistance and battery safety, ensuring that our products are safe, reliable and durable.
Looking forward to the future, we will continue to focus on technological innovation and product upgrading, optimize team management and service quality, and strive to become a leading enterprise in the electric vehicle manufacturing industry. We sincerely welcome customers from all over the world to visit our factory, discuss cooperation and create a better future of green travel together.
Combining high-speed automation with strict quality controls to secure your manufacturing pipeline.
Our Shandong manufacturing campus acts as an industrial benchmark for Factory 4.0 design, combining physical production with digital control loops. By using automated CNC milling systems, robotic welding arms, and centralized production dashboards, we maintain strict control over processing parameters. This ensures that every engine crankshaft, structural frame, and suspension fork we produce matches our master engineering diagrams perfectly.
Furthermore, our geographic position in Linyi provides a strong logistics safeguard. As a key transit hub in China, Linyi offers direct connections to domestic steel mills and ports, minimizing transport delays for raw materials. This allows us to source certified structural steels and alloys quickly, insulating our production schedules from global supply fluctuations. Our partners benefit from stable lead times, predictable unit costs, and rapid scalability for high-volume orders.
Enabling custom transit, global regulatory compliance, and cross-border engineering services.
Navigating varying regional regulations is a key step for international market access. We support global importers by delivering products with verified certifications—including European CE (Machinery & EMC directives), US FCC, and Chinese CCC. We provide all necessary documentation (declaration of conformity, test reports, and material safety data sheets) to guarantee smooth customs clearance.
We tailor our manufacturing outputs to your precise operational guidelines. Whether you require custom frame geometry, specialized paint options, customized battery management systems (BMS), or crankshaft journals machined to specific tolerances, our engineers can adapt designs to your technical requirements.
Long-distance ocean freight demands durable packaging solutions. We use heavy, 5-layer imported kraft paper cartons reinforced with custom-cut polystyrene inserts to secure finished vehicles and components. This structure isolates shipments from external vibrations and moisture, ensuring goods arrive in factory-fresh condition.
Real-world integration of our electric vehicles in modern logistics, passenger transit, and smart urban mobility projects.
Ergonomic and lightweight, perfect for daily commuting and short-distance travel. Stable power, energy-saving and durable, designed to ease congestion in dense residential zones.
Featuring a streamlined modern aesthetic, powerful hub motor outputs, and stable ride control. Ideal for quick local trips, last-mile delivery services, and commercial fleet deployment.
How we streamline international sourcing workflows for commercial volume buyers and automotive OEMs.
Global procurement teams prioritize three main areas: consistent quality, clear regulatory compliance, and supply chain reliability. For buyers sourcing electric vehicle components like crankshafts, raw material consistency is key. We resolve this by performing chemical analysis on incoming steel billets and providing certified chemical and mechanical test sheets with every order.
Additionally, we understand the complexities of cross-border customs handling. We provide comprehensive paperwork packages, including certificate of origin documents, custom tariff classification codes, and detailed packing manifests to minimize customs holds. Whether you are an e-mobility fleet operator or an automotive tier-1 supplier, our customer support teams keep you updated from initial contract signing through to final delivery.
For complete electric vehicle shipments, we offer container optimization services. Our assembly lines can pack units semi-knocked-down (SKD) or completely knocked-down (CKD), maximizing container space and reducing your ocean freight costs per unit.
Get answers to common technical, manufacturing, and compliance questions from our engineering team.
We primarily use micro-alloyed medium-carbon steels like 42CrMo4 and 38MnVS6, or high-tensile ductile iron. These alloys provide the required tensile strength and fatigue limit to handle the frequent load transitions common in hybrid powertrains.
Our complete electric vehicles and key mechanical components undergo testing by accredited laboratories to verify compliance with European Machinery Directive 2006/42/EC and Electromagnetic Compatibility (EMC) Directive 2014/30/EU. CE labels and official declaration of conformity certificates are provided with shipments.
We maintain a grinding tolerance of within 0.005mm (5 microns) for journal diameters and roundness. This precision level helps reduce friction losses, minimizes noise, and prevents bearing wear under high-speed operation.
Yes, we offer complete ODM/OEM services. Our engineering team can review your CAD or STEP design files, complete manufacturing feasibility studies, and produce custom tooling to manufacture crankshafts to your exact design requirements.
We use high-frequency induction hardening on journal surfaces to achieve 55-62 HRC, followed by micro-polishing. For demanding hybrid layouts, we also offer gas nitriding or diamond-like carbon (DLC) coatings to reduce frictional wear.
For raw iron and steel components, we apply a thin layer of rust-preventative oil, wrap the parts in volatile corrosion inhibitor (VCI) film, and pack them in sealed cartons. Complete vehicles are shipped in moisture-barrier bags inside reinforced packaging.
For custom component manufacturing, MOQ typically ranges from 100 to 500 units depending on the size and tooling requirements. For standard electric vehicle orders, we can accommodate smaller initial sample runs to help you verify product fit.
Our facility is equipped with optical emission spectrometers for chemical analysis, coordinate measuring machines (CMM) for dimensional verification, digital hardness testers, and magnetic particle machines to detect surface cracks.
Browse our additional line of utility transit solutions, off-road e-scooters, and high-capacity commuting bikes.
