Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Feb 04, 2026～Mar 03, 2026
This ranking is based on the number of page views on our site.
1～30 item / All 82 items
Stainless steel wire for water-resistant hydrogen embrittlement springs
It has hydrogen embrittlement resistance characteristics under conditions of 70 MPa and -45°C, such as in hydrogen stations.
To improve workability, the stainless steel wire for springs is coated with nickel.
Most of the "spring stainless steel wire" has a nickel plating on its surface. The purpose of the nickel plating is to improve the sliding of the material and enhance the workability of spring processing (especially coiling processing). In fact, when coiling is done using "bare wire" without nickel plating, the material tends to stick to the mold, making the process unsuccessful. However, since "bare wire" has better corrosion resistance, there may be cases where its use is essential depending on the customer's application. The spring (part of it shown in the photo) was coiled using SUS304-WPB, and then the plating was removed. This allows for both workability (cost) and corrosion resistance to be satisfied. By performing barrel polishing as a finishing touch, a gloss like that in the photo can also be achieved. If you have any issues with springs or wire forming, please feel free to consult us. Our technical staff will respond carefully. Tsurugaoka Spring Co., Ltd. Contact: Ujiie Phone: 0235-22-0407 FAX: 0235-22-0546 Email: web@tohj.com We also support web meetings.
We are a group of experts with the technology to process wire materials (metal wires).
Our company utilizes the wire drawing technology cultivated over a long history to manufacture a variety of products, primarily focusing on stainless steel wire. We can produce not only straight wires in square or round shapes but also specialty wires with grooves and those with regular twists. Our technology is also utilized in everyday automotive parts and fiber optic cables. Please feel free to contact us if you have any inquiries. 【Products Offered】 ■ Stainless steel wire ■ Special stainless steel wire ■ Stainless steel specialty wire ■ Titanium wire ■ Aluminum specialty wire *For more details, please download the PDF or contact us.
Introducing the features of the new wire drawing machine's winding equipment in a four-panel comic!
We would like to introduce the fourth installment of the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakae. The new winding equipment for the stretching machine is equipped with various functions, making it difficult to produce defective products. With automatic control features such as "auto traverse function" and "automatic bobbin edge detection function," it becomes possible for the first time to wind fine wires (up to ultra-fine wires) onto "internal taper type bobbins (open reels)." You can view the continuation of the four-panel manga on our company website. 【Functions】 ■ Auto traverse function ■ Automatic bobbin edge detection function ■ R correction function for bobbin corners *For more details, please refer to the related links or feel free to contact us.
Introducing "Rust Formation" due to salt content in a four-panel comic!
We would like to introduce the fourth-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 6>. When salt absorbs moisture, it behaves as a solution, and when chlorine ions react with the passive film on the stainless steel surface, it destroys the passive film. If "self-recovery" cannot keep up during this process, rust occurs. By adding about 2-3% Mo (molybdenum) to SUS304, which is a representative type of austenitic stainless steel, the "corrosion resistance" improves, providing a measure to prevent "rust formation" due to salt. You can view the continuation of the four-panel manga on our company website. [Overview] - Salt has the property of absorbing surrounding moisture and turning into a solution (hygroscopicity), so if left attached, it will absorb moisture from the surroundings and become a "cause of rust." - Selecting the appropriate type of stainless steel is very important for its use. *For more details, please refer to the related links or feel free to contact us.
Introducing important product labels for materials in a four-panel comic!
We would like to introduce the fourth installment of the four-panel manga "Go for it!! Bobin-kun" by Nobuaki Sakai. Our products always come with a product label attached. Products without a label are treated as "label-less products" and cannot be handled as normal compliant products; essentially, they are treated as "scrap (waste)." You can view the continuation of the four-panel manga on our company website. 【Label Items (Example)】 ■ Steel Type/Finish (Heat Treatment Code) ■ Nominal Wire Diameter ■ Actual Weight (Net Weight) ■ Steel Number (HEAT No.) ■ Length of Bar (Set Value) ■ Product Lot No. + Product Serial No. *For more details, please refer to the related links or feel free to contact us.
Introducing our product lineup in a four-panel comic!
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakae, <Episode 11>. Our company primarily specializes in the drawing of stainless steel fine wire, but our product lineup includes various types of metals such as titanium, pure nickel, nickel high alloys, nichrome wire for heating (type 1), iron-chromium wire for heating (types 1 and 2), Inconel wire, and more. You can view the continuation of the four-panel manga on our company website. 【Metals We Handle】 ■ Titanium ■ Pure Nickel ■ Nickel High Alloys ■ Nichrome Wire for Heating (Type 1) ■ Iron-Chromium Wire for Heating (Types 1 and 2) ■ Inconel Wire, etc. *For more details, please refer to the related links or feel free to contact us.
Even if the shape changes, the mass (weight) remains the same! Introducing stretching wire in a four-panel manga.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Seki, <Episode 14>. Drawing wire refers to the process of elongating a wire. For example, in the case of stainless steel wire SUS304 (specific gravity: 7.93), the mass of φ0.80mm × 1m is 0.00399kg (approximately 4g), and the mass of φ0.080mm × 100m is also 0.00399kg (approximately 4g). Although the shape changes, the mass (weight) remains the same. This is the result of the wire drawing process. You can view the continuation of the four-panel manga on our company website. [Overview] ■ Wire drawing is a type of plastic processing, where the shape changes due to processing (external force). * For more details, please refer to the related links or feel free to contact us.
Use for predictions and calculations! Introducing the base material wire diameter in a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 16>. The wire diameter of the base material will be determined according to the final finished wire diameter. In the case of annealed (heat-treated) finishing, annealing (heat treatment) will be applied at the end, so as long as it is normally possible to draw the wire, the selection of the base material wire diameter can be either φ0.80mm or φ1.00mm. You can view the continuation of the four-panel manga on our company website. [Overview] ■ "Soft (finished) wire" is finished with annealing (heat treatment) applied at the end of processing. ■ "Hard (finished) wire" has annealing (heat treatment) applied before the finishing drawing. *For more details, please refer to the related links or feel free to contact us.
Continuous contact with the diamond part! Introducing the wire drawing process in a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakae, <Episode 19>. The die is the key to wire drawing, truly the "lifeblood." The processing occurs when the wire material being drawn continuously contacts the diamond portion embedded within the die, and this is referred to as "drawing processing" or "wire drawing processing." You can view the continuation of the four-panel manga on our company website. 【Die, Pass, Schedule (Partial)】 ■ Pass No. 1 ・Schedule: Φ0.740mm ・Reduction Rate: 14.4% ・Cumulative Reduction Rate: 14.4% *For more details, please refer to the related links or feel free to contact us.
Introducing the product label that is always attached to our products in a four-panel comic!
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobuaki Sakai, <Episode 21>. Products by Nobuaki Sakai always have a product label attached. Products without a product label cannot have their manufacturing history traced, which means we cannot guarantee exactly what that product is. You can view the continuation of the four-panel manga on our company website. [Example of Product Label (Excerpt)] ■ Steel Type / Finish (Heat Treatment Code) ■ Nominal Wire Diameter ■ Measured Weight per Unit Length ■ Steel Plate ■ Length of Bar (Set Value) *For more details, please refer to the related links or feel free to contact us.
If the opening area ratio is small, it becomes a tightly woven wire mesh! Introducing plain woven wire mesh in a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 25>. Plain weave wire mesh has vertical and horizontal wires that maintain a consistent spacing and interweave one by one. When the open area ratio is small, the mesh becomes tightly woven. For example, if the wire diameter increases, even with the same mesh, the openings become tighter, resulting in a smaller open area ratio. You can view the continuation of the four-panel manga on our company website. 【Plain weave wire mesh with φ0.23mm ✕ 40 mesh】 ■ Wire diameter: φ0.23mm ■ Mesh (Meshes per Linear Inch): Number of openings on one side per inch: 40 mesh ■ Open area ratio: 40.7% ■ Aperture size: 405µm ■ Weight per square meter: 1.078kg (for SUS304) / 1.085kg (for SUS316/316L) *For more details, please refer to the related links or feel free to contact us.
A loom of the appropriate size is needed for that width! Introducing plain woven wire mesh in a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 26>. Mesh refers to "the number of mesh openings on one side, measured from the center of the wire material to the center, over a distance of 25.4mm (1 inch)." It is generally produced in a width of 1,000mm, but depending on the application, if that width is insufficient, various widths of wire mesh such as 1,210mm, 1,524mm, and 1,800mm will be manufactured. You can view the continuation of the four-panel manga on our company website. 【Business Activities】 ■ Wire drawing processing of metal wire, including heat treatment ■ Manufacturing and sales of fine to ultra-fine wire *For more details, please refer to the related links or feel free to contact us.
A comparison chart of titanium's corrosion resistance is also included! An explanation of the properties of metals through a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 28>. Metals each have their own characteristics, with some being "strong" and others "weak." The type of metal and steel should be correctly selected according to their intended use and the environment in which they will be used. You can view the continuation of the four-panel manga on our company website. 【Business Activities】 ■ Wire drawing processing of metal wires, including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please refer to the related links or feel free to contact us.
The steel type should be correctly selected according to the intended use and the environment in which it will be used!
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 29>. Metals each have their own characteristics, with some being "strong" and others "weak." Stainless steel is "Stain(less) Steel," meaning it is resistant to rust, but it is not "rust-proof steel." Therefore, it is important to understand and use it as such, and selecting the appropriate steel type is crucial when using it. You can view the continuation of the four-panel manga on our company website. 【Major Categories of Stainless Steel】 ■300 Series: Austenitic ■400 Series: Ferritic/Ferritic-Austenitic/Martensitic ■600 Series: Precipitation Hardening *For more details, please refer to the related links or feel free to contact us.
Introducing processing and applications suitable for the properties of rigid wires in a four-panel comic!
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" <Episode 31> by Nobu Sakai. Hard drawn wire is characterized by high tensile strength (breaking strength), low elongation, and elastic (spring-like) properties. It is used in processing and applications that are suitable for these characteristics. In the case of wire materials, the typical applications are "springs" and "twisted wire (ropes)." "Springs" are used as single wires (one piece), while "twisted wire (ropes)" are made by twisting multiple wire materials together. You can view the continuation of the four-panel manga on our company website. 【Business Content】 ■ Wire drawing processing of metal wires, including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please refer to the related links or feel free to contact us.
Generally, it explains that "7-strand wire" is the "basic form" of twisted wire!
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 32>. "Twisted wire (rope)" is made by twisting together multiple wire materials. It is a collection of single wires (one strand). The more wire materials that make up the rope, the thinner each individual wire will be if the finished rope diameter remains the same. You can continue reading the four-panel manga on our company website. 【Business Activities】 ■ Drawing processing of metal wires, including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please refer to the related links or feel free to contact us.
Introducing stainless steel wire for springs! Bobbin-wound WPB wire made according to JIS G 4314 standards.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakae, <Episode 36>. Specifications for stainless steel hard wire = JIS G 4314 Stainless steel wires for springs There are regulations regarding tensile strength, torsional properties, and straightness. You can view the continuation of the four-panel manga on our company website. 【Business Activities】 ■ Wire drawing processing of metal wires including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please refer to the related links or feel free to contact us.
What is the difference between ropes and springs made according to the same standards? Introducing it with a four-panel comic!
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 37>. The allowable tolerances for wire diameter and eccentricity are specified, and within this range of standard values, we will adjust the target values in manufacturing (drawing) according to the application to produce each product appropriately. You can view the continuation of the four-panel manga on our company website. 【Standards for Stainless Steel Hard Wire】 ■JIS G 4314 Stainless Steel Wire for Springs (excerpt) *For more details, please refer to the related links or feel free to contact us.
Various quality controls are required for spring wire materials! Introducing the technology, effort, and cost through a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" <Episode 39> by Nobu Sakai. To ensure the production of high-quality spring products, or to minimize the defect rate when customers manufacture spring products, various quality controls are required for spring wire materials. You can view the continuation of the four-panel manga on our company website. [Examples of Required Quality] ■ Coil Diameter FCD (Free Coil Diameter) ■ Jump Up JU (Jump Up) ■ Free Jump Up FJU (Free Jump Up) ■ Waviness *For more details, please refer to the related links or feel free to contact us.
In reality, the "product delivery specifications" and "product unit price (@ yen/kg)" are equal!
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 42>. It is true that we often exchange "Product Delivery Specifications" with our customers later on, but in reality, I believe that "Product Delivery Specifications" and "Product Unit Price (@ yen/kg)" are equivalent. This is because the manufacturing cost (and delivery time, by the way) for producing and delivering that product varies depending on the product specifications and quality. You can view the continuation of the four-panel manga on our company website. 【Business Activities】 ■ Wire drawing processing of metal wires, including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please refer to the related links or feel free to contact us.
Introducing products that have been judged as "non-conforming" by the Quality Assurance Department through a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 44>. Unfortunately, products that have been deemed "non-conforming" by our Quality Assurance Department will not be shipped from the factory. If issues such as "forgotten labels" or "labels peeling off" are discovered during the shipping inspection, it is difficult to treat them as conforming products. You can view the continuation of the four-panel manga on our company website. 【Business Activities】 ■ Wire drawing processing of metal wires, including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please check the related links or feel free to contact us.
Introducing the specific gravity of stainless steel and pure titanium (Type TW270) in a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 49>. The specific gravity of aluminum is 2.70. The specific gravity of the representative stainless steel type SUS304 is 7.93. The specific gravity of Bobin-kun's steel type SUS316L (SUS316) is 7.98. The specific gravity of pure titanium (Grade TW270) is 4.51. The specific gravity of iron is 7.87. Each element that makes up metals has its own unique specific gravity. You can view the continuation of the four-panel manga on our company website. 【Business Content】 ■ Wire drawing processing of metal wires including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please refer to the related links or feel free to contact us.
Features a large spool capacity and a tapered shape! Introducing the tapered bobbin through a four-panel comic.
We would like to introduce the four-panel manga "Go!! Bobin-kun" by Nobu Sakai, <Episode 55>. We present the PT-25 plastic (ABS resin) bobbin, characterized by its large winding capacity and tapered shape, along with the PT-25 plastic bobbin winding wire. The tapered shape refers to a design where the diameter slopes towards the tip. You can view the continuation of the four-panel manga on our company website. 【Business Content】 ■ Drawing processing of metal wires, including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please refer to the related links or feel free to contact us.
Regulations are in place for the placement! Introducing tapered bottles in a four-panel comic.
We would like to introduce the four-panel manga "Go!! Bobin-kun" by Nobu Sakai, <Episode 56>. The parallel bobbin inserts onto a shaft and rotates to draw out wire material, while the tapered bobbin is used by lifting the wire material upwards without rotating the bobbin itself, keeping it on the floor. You can view the continuation of the four-panel manga on our company website. 【Business Activities】 ■ Wire drawing processing of metal wires, including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please refer to the related links or feel free to contact us.
Using a line lifting jig (flyer) is also effective! Introducing tapered bottles in a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 57>. The tapered bobbin is a bobbin used for floor placement. The tapered bobbin allows you to pull the wire upwards without rotating the bobbin itself, keeping it on the floor. In the case of floor placement, since the wire is pulled upwards, it is easily affected by wire memory. If the diameter of the wire memory is small, it can easily create points on the wire that resemble knots (kinks). Therefore, when pulling the wire, we apply resistance using whiskers to prevent this from happening. You can view the continuation of the four-panel manga on our company website. 【Business Content】 ■ Wire drawing processing of metal wires, including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please refer to the related links or feel free to contact us.
Once you start annealing, it won't stop for a long time! Introducing annealing in a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobuaki Sakai, <Episode 58>. As stated in the job information, the Annealing (Heat Treatment) Department of Nobuaki Sakai operates under the following factory operation patterns and manufactures on a 24-hour basis. Manufacturing Department (Factory Work) ■ Annealing Section (Day and Night Shift) - Full-time Employees Working Hours: Day Early Shift: 6:15 AM - 4:00 PM / Day Late Shift: 12:15 PM - 10:00 PM Working Hours: Night Early Shift: 6:15 PM - 4:00 AM / Night Late Shift: 12:15 AM - 10:00 AM (Operations are based on a work calendar, with a cycle of 4 days of work followed by 2 days off, organized in rotation) You can view the continuation of the four-panel manga on our company website. 【Business Description】 ■ Wire drawing processing including heat treatment ■ Manufacturing and sales of fine to ultra-fine wire *For more details, please refer to the related links or feel free to contact us.
Perform wire drawing with a 25kg coil on a steel bobbin, and then proceed to the next process of annealing (heat treatment)! Introduced in a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" <Episode 59> by Sakai Shin-sen. The process involves drawing wire using a steel bobbin with a 25kg coil, followed by annealing (heat treatment) in the next step, and then winding onto a PT-25 plastic bobbin. You can view the continuation of the four-panel manga on our company website. 【Business Content】 ■ Wire drawing processing including heat treatment ■ Manufacturing and sales of fine to ultra-fine wire *For more details, please refer to the related links or feel free to contact us.
From the start of rolling to the end, it takes 1,382 minutes! Introducing with a four-panel manga.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakai, <Episode 61>. It runs continuously for 24 hours, with a parameter check (manually) every 4 hours. Unfortunately, at this time, there are no hours of unmanned operation within the 24-hour period. You can view the continuation of the four-panel manga on our company website. 【Business Activities】 ■ Wire drawing processing of metal wires, including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please refer to the related links or feel free to contact us.
There are tasks that are easy to automate and tasks that are difficult to automate! Introducing automation and labor-saving through a four-panel comic.
We would like to introduce the four-panel manga "Go for it!! Bobin-kun" by Nobu Sakae, <Episode 62>. While automation can be implemented for tasks like the automatic attachment and detachment of bobbins, as well as rewinding and splitting, I believe it is very difficult to achieve full automation and unmanned operation for all processes. To automate and operate without human intervention, robots would need to perform these tasks. However, depending on the nature of the work, some processes may require a very high capital investment if done by humans. You can view the continuation of the four-panel manga on our company website. 【Business Activities】 ■ Wire drawing processing of metal wires, including heat treatment ■ Manufacturing and sales of fine to ultra-fine wires *For more details, please refer to the related links or feel free to contact us.
