November 7, 2025
Precision Redefined: Exploring the Capabilities of 5-Axis Swiss Screw Machining
Multi-Spindle Swiss Screw Machining is one of the most reliable and precise methods for manufacturing small, intricate, and high-volume components.
Originally developed for producing screws, this process has evolved to support multiple industries, including the automotive and industrial equipment sectors.
It is a traditional machining method used for decades to produce high-precision parts.
The process involves a screw machine — a multi-spindle automatic lathe — that produces parts using precision cutting tools.
Bombay Metrics has advanced machining capacities, featuring 5-Axis and Multi-Spindle machines such as Tsugami and Citizen systems.
These machines are ideal for producing high volumes of small, simple parts that demand close tolerances.
The process is both fast and efficient, making it a highly cost-effective solution for large-scale production runs.
Simplified Working of 5-Axis Screw Machining
- Bar Stock Loading: The machine loads bar stock and clamps it on the rotary slide. The slide rotates the bar on one or more axes during the tooling process.
- Tooling: The workpiece moves along the rotary axis while tools such as drills, taps, and threaders operate simultaneously on multiple spindles. These tools mold the stock through thread grinding, rolling, milling, and deburring, ensuring exceptional precision and repeatability.
- Secondary Finishing: Depending on the application, secondary processes like coating, plating, lapping, and heat treatment are applied to enhance performance and longevity.
Right Process for Right Parts
| Machine Type | Precision | Volume | Application |
|---|---|---|---|
| Single-Spindle | High precision | Low to medium | Precision fasteners, connectors, and specialized fittings |
| Multi-Spindle | High precision and repeatability | High | Low-complexity, high-volume precision components |
| Swiss Screw | Extremely high precision | Low to medium | Small, intricate parts requiring extreme precision |
| CNC Screw | High precision | Medium to high (complex components) | Flexible machining for both simple and complex parts |
Technical Advantages of Screw Machining Processes
- Precision without the Guesswork: Screw machining enables production within extremely tight tolerances and high repeatability, ensuring reliability for critical industries.
- Handles Complex Geometries: The process allows for intricate shapes and complex designs without complicated setups, thanks to CNC-driven automation.
- High-Volume Efficiency: Systems are designed to monitor equipment and automatically replace worn tools, ensuring continuous operation and maximum uptime.
- Cost-Effective Consistency: Perfect for scaling operations, screw machining delivers consistent, high-quality parts in large batches with lower per-part costs.
Bombay Metrics Core Capabilities in Screw Machining
- Precision Engineering and Technology: Utilizing Swiss-type CNC screw machines and multi-axis machining centers, we produce screws, bolts, fasteners, and custom threaded components with tolerances as tight as ±0.001 inches.
- Full-Range Machining for Custom Solutions: We support all major screw geometries — metric, imperial, specialty heads, and micro-parts — across materials such as stainless steel, aluminum, brass, copper, and alloys.
- Engineering, Design, and Inspection: Our experts convert 2D drawings into optimized CAD or solid models, enhancing performance, manufacturability, and cost-effectiveness.
- End-to-End Manufacturing Integration: Fully integrated global operations allow flexible production volumes, reliable sourcing, and just-in-time delivery for clients worldwide.
Innovation and Future-Ready at Bombay Metrics
- Future-Ready Manufacturing: We embrace Industry 4.0 principles by integrating intelligent systems, data-driven monitoring, and predictive maintenance to enhance productivity and minimize downtime.
- Customization and Flexibility: Our customer-centric approach delivers scalable solutions tailored to diverse industry requirements.
- Sustainable Practices: By reducing waste, optimizing material usage, and implementing energy-efficient technologies, we align with sustainability goals while delivering high-value results.
“At Bombay Metrics, we go beyond traditional machining by combining advanced equipment, skilled expertise, and global quality practices.
With our focus on innovation, sustainable manufacturing, and customer-specific solutions, we deliver screw-machined components that meet the highest standards of performance.
Whatever the sector and the scale, Bombay Metrics stands as a trusted partner for reliable, world-class precision parts.”
