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NEWS & TOPICS
April 15, 2026
Tradeshow information
We will exhibit at the China International Machine Tool Show (CIMT2025).
Pioneering technology to shape the future of gear measurement
Since its founding in 1951, TPR Osaka Seimitsu Kikai Co., Ltd., has specialized exclusively in the development, manufacture, sale, and maintenance of gear measuring machines, responding to diverse needs and earning the trust and satisfaction of its customers.
As a pioneer in gear measuring machines, we continue to pursue world-class quality through the fusion of advanced technology and traditional craftsmanship and by establishing Japan’s first private calibration organization for gears and gear measuring machines.
Pioneering technology to shape the future of gear measurement
Since its founding in 1951, TPR Osaka Seimitsu Kikai Co., Ltd., has specialized exclusively in the development, manufacture, sale, and maintenance of gear measuring machines, responding to diverse needs and earning the trust and satisfaction of its customers.
As a pioneer in gear measuring machines, we continue to pursue world-class quality through the fusion of advanced technology and traditional craftsmanship and by establishing Japan’s first private calibration organization for gears and gear measuring machines.
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Gear measuring machines engineered to maximize gear performance
We were the first in the world to successfully develop a gear measuring machine that uses electronically generated profiles, and our measurement technologies, which advance precision machining and quality control, are now applied to the precision measurement of various types of gears.
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Helping you achieve the highest quality is our mission
As a gear calibration organization accredited under ISO/IEC 17025 through JCSS, we provide highly reliable calibration services.
We also guarantee quality by using measurement equipment traceable to national standards so customers can use our measuring machines with confidence and security.
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Rapid response from experienced staff
We provide maintenance support for older-generation measuring machines to the greatest extent possible. For overseas customers, we’ve established a support system in partnership with local affiliates in which both locally trained staff work with our own service engineers to provide assistance.
Boost productivity with precision gear measurement
We offer a broad product line to meet customers’ specific needs and provide measuring machines for all types of gears.
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CLP Series- Tooth profile, helix, and pitch measuring machine
Long-selling series delivered
more than 2,000 units
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GTR Series- Double - flank gear rollling tester and Gear runout tester
Extensive options
for rolling tests for every type of gear
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AG Series- Automatic gear sorting machine
Custom-designed for production lines to meet automation needs
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- New technologies
Applying gear measurement technology to non-gear measurements
NEWS & TOPICS
- April 15, 2026Tradeshow information
- We will exhibit at the China International Machine Tool Show (CIMT2025).
- April 15, 2026Tradeshow information
- JIMTOF2024 exhibition information