In the realm of industrial measurement and precision engineering, API Company stands as a global leader in developing cutting-edge laser tracker technology and high-performance sensors. Founded in 1987 by Dr. Kam Lau in Rockville, Maryland, USA, the company has built its reputation on innovative solutions that push the boundaries of measurement accuracy and reliability. As a premier laser tracker manufacturer, API serves clients across various industries, including aerospace, automotive, energy, and manufacturing, providing state-of-the-art equipment and expertise that enable businesses to achieve unprecedented levels of precision in their operations.
The Evolution of API’s Laser Tracker Technology
API Company’s journey began with a vision to revolutionize industrial measurement through laser tracker technology. Dr. Lau’s proprietary innovations laid the foundation for what would become the industry standard in precision measurement. Over three decades, API has continuously refined its laser tracker systems, incorporating advanced features like absolute distance measurement, wireless connectivity, and intuitive software interfaces that make high-precision measurement accessible to operators of all skill levels.
The company’s flagship laser tracker products combine portability with exceptional accuracy, enabling measurements in environments where traditional coordinate measuring machines (CMMs) would be impractical. This versatility has made API laser trackers indispensable tools in applications ranging from aircraft assembly alignment to large-scale infrastructure projects. The technology’s ability to measure points at distances exceeding 80 meters with micron-level precision has set new benchmarks in the industry.

Core Competencies: Precision Measurement Instruments & Sensors
API Company’s expertise extends beyond laser trackers to encompass a comprehensive range of precision measurement instruments and high-performance sensors. Their product portfolio includes:
- Laser Trackers: The cornerstone of API’s offerings, these systems provide unmatched accuracy for 3D measurement tasks in large volumes.
- Machine Tool Calibration: Specialized equipment for verifying and optimizing the performance of CNC machines and other manufacturing equipment.
- Sensor Technology: Advanced sensors for measuring vibration, temperature, and other critical parameters in industrial processes.
- Measurement Software: Powerful yet user-friendly applications that transform raw measurement data into actionable insights.
- Custom Solutions: Tailored measurement systems designed to meet specific client requirements across diverse industries.
Each product reflects API’s commitment to quality, incorporating rigorous testing protocols and utilizing premium materials to ensure reliability in the most demanding industrial environments. The company’s vertical integration approach allows them to maintain strict control over every aspect of production, from initial design to final calibration.
Technical Specifications of API Laser Trackers
API’s current generation of laser trackers represents the pinnacle of measurement technology. Key specifications include:
| Feature | Specification |
|---|---|
| Measurement Range | Up to 160 meters (525 feet) |
| Accuracy | ±0.005 mm (0.0002 inches) at 1.5 meters |
| Volumetric Accuracy | ±0.025 mm + 0.003 mm/m (0.001 inches + 0.00002 inches/foot) |
| Weight | Approximately 14 kg (31 lbs) |
| Environmental Rating | IP52 (dust and water resistant) |
Global Applications of API’s Measurement Solutions
API’s technology finds application across virtually every industry requiring precise measurement. Some notable examples include:
Aerospace: Laser trackers play critical roles in aircraft assembly, ensuring components align perfectly during manufacturing. They’re also used for quality control inspection of large structures like wings and fuselages.
Automotive: In vehicle production, API’s systems verify the dimensional accuracy of body panels, chassis components, and powertrain assemblies. They’re also essential for robot calibration in automated assembly lines.
Energy: From wind turbine blade manufacturing to nuclear power plant construction, API’s measurement solutions ensure components meet exacting specifications for safety and performance.
Shipbuilding: The ability to measure large volumes accurately makes laser trackers invaluable for aligning ship sections during assembly and verifying hull shapes during construction.
Construction: In civil engineering projects, API’s technology assists with structural monitoring, bridge alignment, and the precise positioning of architectural elements in large buildings.

The API Advantage: Why Choose API as Your Measurement Partner
Several factors distinguish API Company in the competitive landscape of precision measurement:
Technological Leadership: With decades of experience in laser tracker development, API consistently introduces innovations that set industry standards. Their R&D team works continuously to improve measurement accuracy, speed, and ease of use.
Global Support Network: API maintains service centers and distribution partners worldwide, ensuring prompt technical support and calibration services wherever clients operate. This global presence also facilitates rapid delivery of spare parts and consumables.
Customization Capabilities: Recognizing that one size doesn’t fit all, API excels at developing tailored measurement solutions for unique client requirements. Their engineering team collaborates closely with customers to design systems that address specific challenges.
Training Programs: API offers comprehensive training courses that equip operators with the skills needed to maximize the value of their measurement equipment. These programs cover both theoretical principles and practical application techniques.
Industry Partnerships: As an active participant in numerous industry standards organizations, API helps shape the future of measurement technology. Their involvement ensures their products remain compatible with emerging industry requirements.
FAQ
What makes API’s laser trackers different from other manufacturers?
API laser trackers incorporate proprietary technologies like absolute distance measurement (ADM) and advanced environmental compensation algorithms that provide superior accuracy in real-world conditions. Their systems are also known for exceptional reliability and ease of use, with intuitive software interfaces that reduce training requirements.
How often should a laser tracker be calibrated?
API recommends annual calibration for most applications to maintain optimal measurement accuracy. However, units used in harsh environments or for critical measurements may benefit from more frequent calibration. API’s global service network provides convenient calibration services with quick turnaround times.
Can API laser trackers measure reflective surfaces directly?
Yes, API laser trackers can measure directly on most reflective surfaces without the need for special targets or coatings. This capability significantly speeds up measurement processes in applications like automotive body panel inspection or aerospace component alignment.
What software comes with API laser trackers?
API provides powerful measurement software with every laser tracker system. This includes their proprietary Radian software for basic measurement tasks and the more advanced API Metrology Suite for complex analysis and reporting. Both offer intuitive interfaces and support for various industry-standard file formats.
Summary
API Company has established itself as the premier choice for businesses seeking the most advanced laser tracker technology and precision measurement solutions. With a rich history of innovation spanning over three decades, API continues to push the boundaries of what’s possible in industrial measurement. Their comprehensive product range, global support infrastructure, and commitment to continuous improvement make them the ideal partner for companies across all industries that demand the highest levels of measurement accuracy and reliability. Whether you require off-the-shelf equipment or custom-engineered solutions, API’s team of experts stands ready to help you achieve your measurement objectives with confidence.