Custom-Made Precision Die Casting

Zhejiang aluminum die-casting manufacturers can ensure the customization quality of precision aluminum alloy die castings and moulds through full-process control. Taking Shaoxing Li'an Electric as an example, the company possesses full-process production capabilities ranging from mould design and die casting to CNC machining. In the mould design phase, to address common defects in aluminum alloy die casting such as flow marks, cold shuts, porosity, and shrinkage, the company effectively extends mould life and improves casting precision by optimizing the gating and overflow systems, and rationally designing cooling water channels and draft angles. In the production phase, relying on multiple cold chamber die casting machines of various tonnages and CNC processing equipment, the company strictly controls process parameters such as alloy melting, mould temperature, injection speed, and specific pressure, ensuring stable casting dimensions and excellent surface quality. The company supports make-to-drawing/OEM customization, with products widely applied in the automotive, elevator, medical device, photovoltaic, and reducer industries, providing purchasers with reliable supporting services for precision aluminum alloy die castings.

The precision aluminum alloy die castings produced by Shaoxing Li'an Electric are widely applied across various industrial and consumer manufacturing sectors. Currently, our products primarily serve industries such as reducers, automotive, elevators, medical devices, photovoltaics, power, lighting, strollers, and automation equipment. Specific product forms include various helical gear and worm gear reducer housings, matching flanges, pneumatic end caps, motor housings, cantilever assemblies, and a wide range of precision hardware housings. Leveraging our comprehensive manufacturing capabilities—from in-house mould development and die casting to CNC precision machining and surface treatment—we are able to provide customized aluminum alloy die casting solutions featuring high dimensional stability, excellent mechanical properties, and consistent batch quality, tailored to the specific operating conditions and assembly requirements of diverse industries.

To address the requirements for air tightness and high-precision fitting, our company relies on a comprehensive in-house closed-loop manufacturing system to provide specialized assurance. First, in the forming and machining stages, we possess complete in-house production capabilities ranging from mould design to die casting and then to CNC precision machining. Equipped with multiple CNC machining centers and CNC lathes, we effectively eliminate dimensional deviations caused by outsourcing, ensuring the machining precision and dimensional stability of complex structural components. Second, for products with strict leak-prevention requirements, such as reducer, automotive, and elevator parts, we provide professional impregnation post-treatment processes that effectively seal internal micro-pores in the castings, ensuring the air tightness of the products meets the required standards. Furthermore, integrated with the full-process inspection standards of the ISO9001 quality system and supported by surface treatments such as powder coating, we strictly control every procedure from the blank to the finished product, fully satisfying the purchasers' stringent requirements for high-performance, high-precision aluminum alloy die castings.

Yes, our company offers one-stop, in-house closed-loop production capabilities, covering everything from mould development to the shipment of finished products. We operate an independent mould production workshop, enabling us to design and manufacture high-precision die casting moulds based on customer drawings. Following the die casting process, all subsequent operations—including precision CNC machining, surface coating, and impregnation treatment—are independently completed using our own facility's equipment and dedicated team. This full-process, in-house closed-loop model effectively eliminates the risks associated with outsourcing sub-processes, such as inconsistent datums, tolerance accumulation, and miscommunication leading to rework. Coupled with our high-precision inspection equipment, such as coordinate measuring machines, this allows us to achieve end-to-end quality control—from mould iteration and blank forming to precision machining and finishing—ensuring exceptional dimensional stability and consistency for a wide range of complex aluminum alloy die castings used in reducers, automotive, elevator, and medical applications.

We are equipped with a CMM, air-leak tester and other inspection tools, with in-process self-checks to guarantee dimensional accuracy and consistency.

It depends on mould complexity — new mould development and sampling usually take a few weeks; mass-production lead time is quoted per order. Contact us to confirm.

We run 180–500T cold-chamber die-casting machines plus CNC machining centers and CNC lathes, covering small-to-medium precision aluminum castings and post-machining.

We mainly die-cast aluminum alloys such as ADC12; surface treatments include sandblasting, powder coating, anodizing, impregnation and e-coating as required.