Precision CNC machining of door closer housings for stable mass production. Critical holes and functional surfaces are tightly controlled to ensure consistent quality and reliable performance.
Engineering-focused CNC solutions for stable precision, efficient mass production, and long-term reliability.
Our CNC equipment is designed around machining dynamics, structural rigidity, and motion accuracy.
Integrated mechanical and control systems ensure stable precision and repeatability under continuous mass production conditions.
Through optimized machine structure and process integration, our solutions deliver high repeatability and consistent accuracy.
Single-clamping machining minimizes cumulative positioning errors, ensuring reliable quality in large-volume production.
From equipment selection to installation, commissioning, and after-sales service, we provide continuous technical support throughout the equipment lifecycle.
Our solutions are built for durability, ease of operation, and future scalability.
The customer is a Germany professional manufacturer of door control hardware, specializing in the mass production of door closer housings.
Their products are widely used in commercial buildings and large-scale construction projects, where consistent performance and long-term reliability are critical.
In this application, machining accuracy, production consistency, and stable delivery directly impact product quality and brand reputation.
Before working with us, the customer used a dispersed machining setup, with different operations completed on multiple general-purpose machines. This approach gradually led to production bottlenecks and inconsistent quality.
The housing features a compact structure with limited machining space, requiring high rigidity and stable machining performance.
Multiple functional holes are densely arranged, increasing the difficulty of positioning accuracy and consistency during mass production.
Critical features require multi-directional machining with tight tolerances, placing high demands on machine accuracy and process integration.
Among all features, the machining quality of key functional holes—such as oil return holes and valve holes—is especially critical.
Their positional accuracy and aperture consistency directly affect speed control performance and the operational feel of the door closer, making them a key determinant of overall product quality.
The customer’s previous production setup relied on dispersed machining across multiple general-purpose machines, resulting in low efficiency and limited scalability.
Multiple machines and frequent part transfers increased handling time and setup complexity.
Long cycle times and repeated setups restricted output capacity and limited mass production scalability.
Manual positioning and adjustments made machining accuracy heavily reliant on operator experience.
Variations in setup and positioning led to noticeable quality differences between production batches.
Based on the component structure and critical machining requirements of door closer housings, we formed a dedicated engineering team to analyze the customer’s production bottlenecks and quality risks.
We then developed a customized CNC machining solution specifically for door closer housing production, integrating dedicated fixtures and optimized process flow to achieve stable, high-volume manufacturing.
One-time clamping for multi-face and multi-hole machining
All critical features are completed in a single setup, eliminating cumulative positioning errors caused by repeated clamping.
Synchronous machining of key functional holes
Oil return holes, valve holes, and related functional features are machined in a controlled sequence, ensuring stable positional relationships and functional consistency.
Equipment-level accuracy and consistency assurance
Precision and repeatability are built into the equipment and fixturing design, reducing dependency on operator skill and ensuring consistent quality across batches.
This solution fundamentally improves machining stability and provides a reliable foundation for long-term mass production.
Learn how our customized CNC equipment and production line solutions are applied to solve real manufacturing challenges across different components and industries.
After implementation, our custom CNC machining solution was successfully integrated into the customer’s production line, delivering measurable improvements in efficiency, accuracy, and quality consistency.
+220%
99.9%
95%
Our custom CNC equipment solution has been operating reliably over the long term, becoming a core machining system within the customer’s production line.
This customized CNC solution continues to deliver stable production performance and scalable manufacturing value, supporting the customer’s long-term growth.
Customized Intelligent CNC Production Line Overall Solution
Robotic Loading & Unloading Automation for CNC Production Lines
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