Case Study: YOSO Custom Planetary Screws for an Italian Precision Machinery Manufacturer

Italy is a global hub for high-end precision manufacturing, celebrated for its strict quality benchmarks, innovative engineering, and adherence to European industrial standards. Recently, YOSO partnered with a leading Italian machinery firm based in Milan—specializing in automated assembly equipment for the automotive and aerospace sectors—to deliver fully customized planetary screw products. This collaboration addressed the client’s critical needs for high load capacity, ultra-precise positioning, and compact design, reinforcing YOSO’s reputation as a trusted supplier of precision transmission solutions for European markets. Let’s dive into the details of this successful project.

Our client boasts over 40 years of experience in designing high-precision automated assembly lines, serving top Italian and European automotive brands like Ferrari and Lamborghini, as well as aerospace component manufacturers. Their latest project required a transmission solution for a compact robotic arm used in engine component assembly—where traditional ball screws fell short of meeting their stringent requirements.

The client’s core pain points and customization demands included: 1. High Load Capacity with Compact Size: The robotic arm had limited installation space, requiring a transmission component with a small footprint but capable of bearing 800kg axial load. 2. Micron-Level Positioning Accuracy: Engine component assembly demanded ±0.005mm positioning accuracy to ensure seamless fitting of precision parts. 3. Low Noise & Longevity: The assembly line operates 24/7, so the planetary screws needed low noise (≤50dB) and extended service life to minimize downtime. 4. EU Compliance: All components must meet CE marking, ISO 9001:2015, and REACH regulations to integrate into their EU-certified production lines. After evaluating multiple suppliers, the client chose YOSO for our expertise in custom planetary screw design and deep understanding of European manufacturing standards.

YOSO’s engineering team collaborated closely with the client’s technical department via bilingual (English/Italian) meetings to refine the solution. Leveraging our decades of planetary screw R&D experience, we designed a tailored product that addressed every requirement:

We optimized the planetary screw’s thread profile and core structure, adopting high-strength Inconel alloy for the screw shaft (surface hardness HRC63+ via vacuum quenching). The 40mm nominal diameter screw achieved an 850kg axial load capacity—exceeding the client’s demand—while maintaining a compact length of 320mm, perfectly fitting the robotic arm’s limited space.

To achieve ±0.005mm positioning accuracy, YOSO used high-precision CNC grinding machines with laser interferometer real-time monitoring. We refined the thread pitch error to ≤0.002mm/m and integrated a preloaded planetary nut to eliminate backlash, ensuring stable precision even during high-frequency启停 (start-stop cycles).

A customized rolling contact system with wear-resistant steel balls reduced friction, lowering operational noise to 47dB. We added a double-layer sealed structure (food-grade fluororubber) and YOSO’s proprietary high-temperature lubricant, extending the service life to over 10,000 operating hours—meeting the client’s 24/7 production needs.

YOSO provided a complete compliance package, including CE certification, ISO 9001:2015 quality reports, REACH substance declarations, and material safety data sheets (MSDS). All components were tested to meet EU industrial safety and environmental standards, ensuring seamless integration into the client’s production lines.

YOSO streamlined the cross-border collaboration with a dedicated project manager, conducting weekly progress meetings and sharing 3D design iterations for client approval. The entire process—from design confirmation to mass production and delivery—was completed in 40 days, aligning with the client’s tight production timeline. Our technical team provided remote installation guidance and on-site commissioning support (via YOSO’s European service center in Germany), ensuring the planetary screws were fully operational within 24 hours of delivery.

Post-implementation testing confirmed the solution exceeded expectations: positioning accuracy stabilized at ±0.004mm, load capacity reached 850kg, and operational noise remained below 47dB. The client’s engine component assembly line saw a 30% reduction in fitting errors and a 22% increase in production efficiency.

Marco Rossi, the client’s Chief Engineer, stated: “YOSO’s custom planetary screws perfectly match our precision and space requirements. Their deep understanding of Italian manufacturing standards and responsive service made this collaboration seamless. The product’s performance has elevated our assembly line’s reliability, and we’ve already placed a repeat order for our next project.”

This project showcases YOSO’s ability to deliver tailored planetary screw solutions for Italian and European high-end manufacturing. Our key strengths include: - Bilingual technical support (English, Italian, German) for clear communication; - Expertise in EU compliance (CE, ISO, REACH) to eliminate regulatory risks; - Customizable designs for compact, high-load, and precision-critical scenarios; - Efficient cross-border logistics (40-day average lead time for custom products); - Localized post-sales support via European service centers to minimize downtime.

For Italian manufacturers seeking high-precision, compliant, and customized planetary screw solutions, YOSO combines advanced engineering, strict quality control, and localized service to drive operational excellence. Whether for automotive, aerospace, or industrial robotics applications, we tailor our products to meet your unique requirements.

Contact YOSO today to discuss your custom planetary screw needs. Our team will work with you to design a solution that aligns with your production goals, EU compliance standards, and precision demands.