[Tokai Spring industries, Inc. Specialized manufacturer of springs of various types and minute quantity made to order.
■Since our founding, we have been dedicated to springs
We take on jobs that other companies do not want to do. This is the unchanging core competence of Tokai Spring.
Dedicated spring craftsmen
High-quality springs made by nationally qualified craftsmen, completely made to order.
We have succeeded in mechanizing our craftsmen's skills.
Proactive acquisition of ISO and JIS certifications that guarantee quality
We work together with our customers from product development to after-sales support.
■Development and prototyping
Our commitment to our customers' product development and long-term research enables us to cooperate with them in all aspects from prototyping to data collection.
■Maintenance
We can deliver springs manufactured by other spring manufacturers from a single piece without drawings.
■Manufacture
We can immediately manufacture the same spring that was manufactured more than 10 years ago.
We can respond to a wide range of applications and needs.
Examples of Tokai Spring's springs in action
Oil and gas energy - We have many delivery records of important parts. We also ensure traceability of the manufacturing process.
We provide coil springs that do not bend during compression for large main steam control valves and coil springs with controlled lateral load for high-pressure safety valves.
2. high temperature environment
Based on many years of research, we have our own design standards and manufacturing technologies for springs in high temperature environments.
(3) Minimization of downtime
We always have a variety of spring materials of all special steels (nickel base alloys, tungsten steels, titanium alloys, copper alloys, stainless steels, etc.), and we can deliver springs on an express basis in case of emergency.
■Steelmaking facilities - reliably deliver the required performance even under extremely severe conditions, such as at temperatures of several hundred degrees Celsius.
We can reproduce and manufacture springs used in existing facilities for which drawings are not available, from the actual products.
(2) Solving all problems of springs
We have a wide range of heat-resistant, corrosion-resistant, and high-strength materials, and handle a wide range of products from high-load springs such as large coil springs and bamboo springs to small coil springs made of special steel.
3. semi-permanent reproducibility
We keep drawings and manufacturing data from decades ago, so we can provide you with future peace of mind.
Space Development - Thorough Quality Control, Thorough Reproduction
We can perform various types of reliability tests according to customers' requests.
2. quality control
We received JIS Q 9100 certification in 2013, and have accumulated a large number of product achievements in the aerospace industry.
3. highly reproducible prototyping
We actively accept requests for prototypes, and if no problems are found after the verification of the prototype, we can move on to full production using the same manufacturing process.
■Machine tools - Achievements in miniaturization and long life, accuracy of 1/2 of DIN standard and concentricity of 0.05 or less
We offer "i-MC SPRING", a disc spring with high load capacity, high speed rotation, and long life that is ideal for the spindle of machining centers. 2.
2. high-end model development
We have developed and own an endurance fatigue testing machine that simulates the spindle operation of actual machines, enabling us to conduct verification tests on prototypes prior to mass production.
3. design with maintenance in mind
We can estimate and evaluate the durability of combination disc springs according to the customer's requirements.
Types of custom-made springs
For more information, please visit ■Tokai Spring industries, Inc. website.
