List of Spring products

Reduce the workload from handling heavy objects! Here are five case studies that solved customer challenges! We are also accepting free consultations and tests tailored to your work!

• Other conveying machines

No more need to lift heavy one-gallon cans! Enjoy comfortable liquid transfer in the central kitchen.

• Other Pumps

[Reproduction of Private Spring Preparatory School Lecture 41] Low-temperature annealing is commonly referred to as bluing! The blue color is the color of the iron oxide film formed on the surface of ...

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[Reproduction of Private Spring Preparatory School Lecture 44] Shot peening is a surface treatment! Explanation of the final process setting as well.

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[Reproduction of Private Spring Preparatory School Lecture 45] The usable temperatures of various steel wires and JIS related to wire springs are also included in the table!

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[Reprint Private Spring Preparatory School Lecture 48] Introducing a short poem consisting of three lines of 5-7-5 syllables, primarily focusing on humor and satire!

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[Reproduction of Private Spring Preparatory School Lecture 49] Fishing rods are similar to springs in that they utilize the elasticity of bamboo, that is, the force of rebound!

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[Reproduction of Private Spring Preparatory School Lecture 50] Studying metal materials for springs! I will explain the types of steel most commonly used for springs.

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[Reproduction of Private Spring Preparatory School Lecture 51] There are two main methods to give spring strength! Explanation of JIS spring steel.

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[Reprint Private Spring Preparatory School Lecture 16] What is a fatigue test? An explanation of its purposes and how it is conducted.

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[Reproduction of Private Spring Preparatory School Lecture 17] Metals also change when they are fatigued! An explanation of how the results of fatigue tests are organized and utilized in design.

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[Reproduction of Private Spring Preparatory School Lecture 21] Yielding and fatigue destruction are related not only to the maximum surface stress but also to the stress at a certain depth from the su...

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[Reproduction of Private Spring Preparatory School Lecture 23] Explanation of methods to prevent the decline of fatigue strength and surface treatments aimed at corrosion protection!

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[Reproduction of Private Spring Preparatory School Lecture 24] An explanation of the miracle cure for improving fatigue resistance, shot peening, and other important considerations!

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[Reproduction of Private Spring Preparatory School Lecture 25] The relationship between the transition of cultures such as stone tools, bronze tools, and iron tools and spring materials!

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[Reproduction Private Spring Preparatory School Lecture 26] As the amount of carbon increases, both tensile strength and yield point increase!

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[Reprint Private Spring Preparatory School Lecture 27] Explanation of the load and elongation diagram in the tensile test of steel!

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[Reproduction Private Spring Preparatory School Lecture 28] We are explaining using a diagram that shows the carbon content and the proportion of organizational components in steel!

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[Reproduction of Private Spring Preparatory School Lecture 29] Pure iron at room temperature undergoes a sudden transformation into gamma iron when the temperature rises to 910 degrees!

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[Reproduction of Private Spring Preparatory School Lecture 30] Explaining what happens when the cooling speed from high temperatures is changed!

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[Reprint Private Spring Preparatory School Lecture 33] What you need to be careful about is overheating! An introduction to defects that are likely to occur during heat treatment.

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[Reproduction of Private Spring Preparatory School Lecture 35] Introduction to the JIS numbers, symbols, and chemical components (only carbon and manganese content) of three types of wire materials!

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[Reprint Private Spring Preparatory School Lecture 36] An explanation of the differences between the brothers of spring steel wire and their growth processes!

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[Reproduction of Private Spring Preparatory School Lecture 42] Thin wire springs, thick wire springs! An explanation of the issues of end face grinding and shot peening for both.

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[Reproduction of Private Spring Preparatory School Lecture 43] Fine matte texture on airplane parts! Explanation of shot peening.

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[Reproduction of Private Spring Preparatory School Lecture 46] Introducing songs about mainsprings, songs that encourage quality control, and songs related to painting and spring surfaces!

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[Reproduction of Private Spring Preparatory School Lecture 47] The inseparable relationship between bamboo and springs! An explanation of how it utilizes elasticity.

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[Reproduction of Private Spring Preparatory School Lecture 52] Exploring specific examples of spring stiffness! We will also explain the limitations of using a spring scale.

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[Reproduction of Private Spring Preparatory School Lecture 53] Study of heat treatment that creates spring hardness! Explanation of carbon that strengthens steel.

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[Reproduction of Private Spring Preparatory School Lecture 54] Changes When Hardening is Done! Explanation of Carbon Content and Hardness from Hardening.

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[Reprint Private Spring Preparatory School Lecture 57] Burn marks can occur due to uneven quenching temperatures, uneven cooling, and the presence of scale!

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[Reproduction of Private Spring Preparatory School Lecture 58] As the grain size increases, the resistance to impact decreases, and the fatigue strength also diminishes!

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Reproduction of Private Spring Preparatory School Lecture 60: Sometimes the spring surface may soften due to grinding heat, leading to breakage!

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[Reprint Private Spring Preparatory School Lecture 63] An explanation of changes in mechanical properties due to re-burning and the effects of time!

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[Reproduction of Private Spring Preparatory School Lecture 55] The harder the quenching, the greater the hardness! It also explains that there are differences in hardenability depending on the type of...

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[Reproduction Private Spring Preparatory School Lecture 56] There are also restrictions on the components of special elements! The composition of JIS spring steel is also determined by this.

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[Reproduction of Private Spring Preparatory School Lecture 59] Explanation of reversion! Also explaining martensite structure and changes in structure.

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[Reproduction of Private Spring Preparatory School Lecture 61] Explanation of quenching distortion! A method of quenching with less distortion is also explained.

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[Reproduction of Private Spring Preparatory School Lecture 62] By using the press hardening method, it is possible to suppress the amount of distortion!

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Providing high-quality springs for railway maintenance parts with over 90 years of technological expertise.

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This is a round-shaped, hole-type spring post.

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Insert nut

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With the electroforming method, precise control of plate thickness is possible! Miniature size and flexible bellows!

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It is suitable for those who are struggling with the supply of long-length bonded springs and coils with a small spring index!

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