Donghua Machinery Leverages Technical Expertise to Meet Complex Automotive Parts Manufacturing Demands
Donghua Machinery, backed by profound technical expertise, has established a comprehensive portfolio of injection molding equipment covering the entire automotive parts manufacturing process chain. Extensive production line validation has demonstrated the exceptional processing adaptability of multiple Donghua machine models in addressing increasingly demanding molding challenges.JSeIII Series Large Two-Platen Machines, JHB Series Two-Platen Electric Machines, and D Series Electric Injection Molding MachinesStand out in the market.
JSeIII Series Large Two-Plate Machine
Ultra largeAutomotive structural components
In the production of large-sized structural components such as automotive bumpers and door panels, these parts often have a large projected area and commonly use modified materials, making them highly prone to defects like sink marks or flash.The equipment must be capable of strong impact resistance and mold locking rigidity to cope with the risk of deformation caused by large molds, and to ensure uniform melt plasticization.
Machine Characteristics
Six evenly distributed hydraulic cylinders with direct-clamping structure. High-pressure hydraulic cylinders are arranged in a circular pattern and directly act on the mold mounting surface, effectively reducing mold deformation, better protecting the mold, and thereby improving the quality of molded parts.
The equipment is equipped with a precise and impact-free link-type brake nut structure, with a short operation cycle and low operating noise.
In the injection unit, a new structure with dual cylinder injection and barrel support is adopted, ensuring accurate metering and minimal deformation of the injection unit.
JseIII Series Large Two-Platen Injection Molding Machine
In the super large machine industry, Donghua possesses strong delivery and customization capabilities. Last year, we successfully produced and delivered a 4,500-ton super large injection molding machine overseas, which was recognized by the customer in actual production. Currently, Donghua is capable of designing 6,000-8,000-ton super large machines, and is well-prepared to meet the industry trend of integrated molding.
JHB Two-Plate Motor
The production main force that combines space and efficiency
For large components such as car seat backs, door panels, and interior trim panels, each part has a relatively high weight and strict assembly dimensional requirements. In actual mass production, companies not only face challenges in achieving uniform plasticization of heavy materials, but also urgently need to break through production capacity bottlenecks for large components within limited workshop space.Achieve efficient, high-precision mass production.。
Machine Features
High rigidity heavy-duty clamping, the design without toggle saves space and reduces operating costs. The 1000-4500T models adopt a super large circular evenly distributed direct pressure mechanism, while the 450-900T models are equipped with high-strength box-type platen, comprehensively ensuring uniform force on large molds and accuracy of product dimensions.
Efficient multi-axis synchronized cycling: The equipment supports synchronized multi-axis motion, significantly enhancing production line efficiency. Models up to 1200T achieve an ultra-fast 6-second empty cycle, providing robust support for high-volume, high-efficiency delivery of large automotive components.
Dual-layer electric injection unit with precise control: equipped with two servo motors and ball screws to drive the dual-layer injection unit, ensuring abundant injection pressure and stable motion transmission. The product repeatability accuracy is strictly controlled to ≤0.3%, fully meeting the high-precision and high-efficiency molding requirements for large injection-molded components.
JHB Two-plate Electric Motor
D Series Electric Injection Molding Machine:
Precision Optics and New Energy Components
Peripheral connectors for new energy vehicle “three-electric” systems and automotive lighting optical lenses impose stringent requirements on molding processes; otherwise, defects such as sink marks, voids, depressions, bubbles, and short shots easily occur—these characteristics necessitate that injection molding equipment must possess...Excellent shooting accuracy, running stability and clean production environment
Machine Features
Equipped with a large, high-stiffness electric precision injection unit, the injection position accuracy is controlled within ≤±0.03mm, and the product weight deviation is ≤0.1%, effectively ensuring the stable output of high-precision products.
High rigidity clamping structure has been optimized by CAE software, effectively reducing the deformation transferred from the mold base to the mold. This ensures precise production and helps extend the service life of the mold. Additionally, the moving mold plate is equipped with heavy-duty roller linear guides, which offer excellent guidance accuracy, strong support, and ensure smooth and low-resistance operation.
Compared to traditional hydraulic presses, the D series not only significantly reduces energy consumption but also uses high-quality grease lubrication for all critical actuators, greatly reducing the use of hydraulic oil. This low-noise, low-emission operation mode perfectly meets the high cleanliness standards of the production environment for optical and electronic components.
1100HD Motor
360HD Motor
In the face of continuously evolving manufacturing standards in the automotive parts industry, robust equipment capabilities are key to breaking through. Leveraging profound technical expertise and a rigorous engineering framework, Donghua Machinery consistently transforms its deep understanding of advanced molding processes into exceptional equipment productivity. We remain committed to delivering reliable, efficient, and integrated molding solutions to help enterprises build a solid quality moat.
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