At a glance
| Booth | Q5352 |
| Country | TW |
| Website | www.posa-spindle.com |
Company profile
POSA MACHINERY CO., LTD. is a professional spindle manufacturer established in 1994, and the company describes its product range as covering lathe spindles, machining-center spindles, grinder spindles, and boring-machine spindles. POSA also describes itself as having Taiwan's most complete professional spindle product line. The company markets its products globally to more than twenty countries, including Mainland China, the United States, Germany, Japan, India, Indonesia, Brazil, Turkey, Singapore, and Malaysia. In 2000, POSA developed what it describes as Taiwan's first intelligent spindle test laboratory. The company also cooperated with Feng Chia University and National Chinyi University of Technology to build spindle simulation laboratories used for intelligent-spindle design, testing, development, and inspection. To provide total solutions, POSA states that R&D personnel account for 10% of its total employees and that customer engagement begins with understanding actual application requirements before proposing professional solutions. Its stated development direction includes further research and development of high-end precision spindles, with Japan, Korea, Europe, and the United States identified as target markets. Development of the POSA aerostatic precision spindle is described as an important milestone that moved beyond conventional spindle design by using gas with viscosity only 1/1000 that of ordinary lubricating oil. For that aerostatic design, the R&D team analyzes and optimizes the internal pneumatic flow-channel structure so that a load-bearing air film forms between rotating and stationary parts instead of relying on conventional steel-ball-bearing support. The aerostatic spindle is presented with oil-free environmental operation, zero-wear running, and high precision, and is intended to support localization needs for components used in semiconductor-wafer, LED, and related machining processes.
Exhibits
For semiconductor-wafer and LED machining, POSA's aerostatic precision spindle uses an optimized internal air-pressure flow path to form a load-bearing air film between rotating and stationary parts, replacing traditional steel-ball-bearing support. That aerostatic spindle is presented as oil-free, zero-wear, and high-precision, directly linking POSA's spindle technology to semiconductor-wafer and LED processing requirements. For turning and milling centers, POSA supplies a Swivel Head Spindle equipped with rotary-table bearings, torque motors, and encoders to improve worktable precision. The Swivel Head Spindle uses finite-element analysis for part rigidity and structural performance, thermal-displacement analysis for structural stability and consistent quality, and a three-piece clutch gear system for precise and stable turning positioning. Its mounting interfaces, including hard rails and screws, can be customized to customer requirements, and an optional dual-support structure is offered for high-rigidity demands. The High Speed Built-in Spindle for turning and milling centers uses a recirculating oil-air lubrication system that continuously supplies and recovers lubricant to extend bearing life, reduce oil-air leakage risk, and limit oil-air dispersion. When that spindle is equipped with a permanent-magnet motor, POSA states that it can increase productivity by 30% and reduce carbon emissions by 55% while maintaining high rigidity and efficiency. Motor systems from domestic and international manufacturers can be selected according to customer requirements for the turning-and-milling spindle range. POSA describes its turning-and-milling-center spindles as supporting combined turning and milling in one CNC-controlled setup, with the objective of reducing production time and increasing productivity. The turning-and-milling spindle range is stated to handle aluminum, steel, titanium, and composites and to serve aerospace, automotive, medical-device, and precision-engineering applications, with customization available for specific needs. For CNC lathes, the Built-in Spindle uses an Intelligent Spindle Design Concept with integrated sensors that monitor temperature rise and vibration factors that can affect machining precision. IoT connectivity allows performance-related information to be sent back to POSA so spindle usage can be tracked, while the spindle can assist with self-diagnosis and capture service information. The listed CNC-lathe built-in spindle models are LMS-S20, LMS-A2-4, LMS-A2-5, and LMS-A2-6, and motor systems can be selected according to customer requirements. For machining centers, POSA also applies the Intelligent Spindle Design Concept with built-in temperature and vibration sensing, real-time monitoring, IoT feedback, usage tracking, self-diagnosis, and service-information capture. The Tapping Center Spindle provides quick tool change, runout within 0.005mm, dynamic balancing grade below G1, a patented waterproof labyrinth and air-curtain design, and customizable dimensions and functions. The Direct-drive Spindle uses low-backlash, high-rigidity couplings and direct motor drive to improve transmission efficiency, while also specifying runout within 0.005mm, dynamic balancing below G1, patented waterproof labyrinth and air-curtain protection, and customizable dimensions and functions. The Belt-drive Spindle is likewise specified with runout within 0.005mm, dynamic balancing below G1, the patented waterproof labyrinth and air curtain, and customizable dimensions and functions. The Box-Type Gear Spindle adds a quick-release tool-change system and a floating anti-pull mechanism intended to reduce axial displacement during tool release and extend bearing life, together with runout within 0.005mm and dynamic balancing below G1. For the Box-Type Gear Spindle, mounting dimensions, overhang structure, rail interfaces, and screw interfaces can be customized, and the same patented waterproof labyrinth and air-curtain protection is used. POSA states that its machining-center spindles use imported precision-grade bearings and advanced manufacturing and assembly methods, with nose runout controlled within 0.005mm for high-precision machining tasks. Flow-field analysis is used to optimize waterproof and dustproof protection at the spindle nose, while finite-element analysis optimizes part rigidity and structural integrity and thermal-displacement analysis supports stability during prolonged and high-thermal-load operation. The machining-center spindle range is stated to process aluminum, steel, titanium, and composites for aerospace, automotive, medical-device, and precision-engineering work, and POSA offers customization covering spindle speed, torque configuration, and specialized cooling systems. For boring and milling machines, POSA supplies a High Speed Spindle with a high-rigidity bearing design, reduced turning and milling tracks and vibration effects from the prolonged boring shaft, and calibration methods for precise spindle extension and rotation. Its extendable boring-and-milling spindle example uses a 130mm spindle diameter and a 700mm telescopic stroke while maintaining 0.01mm straightness at full extension compared with an international standard of 0.02mm. The same example keeps spindle runout within 0.02mm compared with an international standard of 0.03mm. Intelligent components on the boring-and-milling spindle allow users to monitor spindle status, track quality changes during production, adjust machine parameters, and analyze the relationship between tool wear and part quality to maintain machine performance.
Capabilities and products
- aerostatic precision spindle for semiconductor-wafer and LED machining
- Swivel Head Spindle
- High Speed Built-in Spindle
- Tapping Center Spindle
- Direct-drive Spindle
- Belt-drive Spindle
- Box-Type Gear Spindle
- Spindles for Boring & Milling Machine