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This section provides an overview for piano wire as well as their applications and principles. Also, please take a look at the list of 7 piano wire manufacturers and their company rankings. Here are the top-ranked piano wire companies as of December, 2024: 1.HIRANO STEEL CO., LTD., 2.STERLER Technology., Ltd., 3.Thai Special Wire Co., Ltd..
Table of Contents
Piano Wire is a type of high-tensile steel wire.
It is used in a wide range of applications, including wire and various spring materials in the automotive and electronics fields, cables used in suspension bridges, bed springs, and prestressed concrete.
Wires for opening and closing rear hatch of automobiles, voice coils of speakers, etc.
Springs for automobile suspensions and seats, springs for industrial machinery, etc.
Piano wire is sometimes used as springs for industrial machinery in the following places:
Arm springs of hydraulic excavators
Arm springs of hydraulic excavators are used to support the arms of hydraulic excavators. Piano wire is used to produce arm springs that have high strength and durability and are not easily deformed even after long use.
Tension Adjustment Springs for Rolling Mills
Tension adjustment springs are required in rolling mills when processing thin metal sheets. By using piano wire, we can manufacture springs with high strength and accurate tension adjustment.
Heddle springs for looms
In a loom, heddle springs are essential parts for loom operation. By using piano wire, springs can be manufactured that have high strength and durability, and that do not deform even after long periods of use.
The heddle spring of a loom is the part that opens and closes the threads of the yarn. In a loom, warp and weft yarns cross each other to make fabric, which requires the warp yarns to move up and down at regular intervals. The heddle spring controls this movement and is essential for the accurate operation of the loom.
Printer pick-up roller spring
The pick-up roller spring of a printer is a part for capturing paper. Piano wire is used to produce springs that have high strength and can withstand the load of the rollers rotating at high speed.
Examples include cables used in suspension bridges, highway safety fences, and prestressed concrete.
Prestressed concrete is a type of reinforced concrete in which high-tensile steel wires and cables pre-tensioned to the structure and precompressed to minimize deformation due to subsequent loading and stress. By applying compressive forces in advance, the concrete exhibits higher strength, making structures such as large-span bridges and skyscrapers safer and lighter.
Examples include bed springs and bicycle brake wires.
Reinforcing material for power line wires, etc.
The reason for the high tensile strength of piano wire lies in the manufacturing process. Piano wire is made from high-quality steel material and manufactured through the drawing and quenching processes.
Drawing is a process by which metal wire is stretched to produce a thin, uniform wire rod. By drawing metal wire through a metal mold, the wire can be made uniformly thin. It is the process of drawing steel wire out of a die to produce uniformly thin wire with a fine diameter. Wires produced by drawing have a uniform structure and are characterized by high strength.
Quenching heats iron wire in a high-temperature environment and then quenches it, giving the wire elasticity and strength. The heat expands the iron wire, and the rapid cooling causes it to contract, resulting in a stronger wire.
Piano wire is highly durable, and quenching at high temperatures further improves its durability.
Piano wire is made of high quality steel material, and drawing and quenching during the manufacturing process allows piano wire to withstand very high tensile forces. They have excellent corrosion resistance and are resistant to rust, so they do not deteriorate easily even after long-term use.
Quenching is the process of heating piano wire in a high-temperature environment and then cooling it rapidly to give the wire elasticity and strength. Quenching at high temperatures improves the crystal structure of piano wire and forms a stronger structure. This improves the durability of piano wire and allows it to withstand use for a longer period of time. Quenching also hardens the surface of the piano wire and makes it more resistant to wear and tear, so it is less likely to deteriorate even if worn during use.
*Including some distributors, etc.
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STERLER Technology., Ltd., established in 1995 and located in Kaohsiung City, Taiwan, is a manufacturer of steel wire products. The company’s diverse range of products includes shaped wires, oil-tempered wire, piano wires, hard-drawn wire, and cold-formed steel. These products cater to industries, including automotive, construction, manufacturing, music, agriculture, and electronics. The company’s products are used in applications ranging from automotive suspension systems and construction reinforcement to musical instrument manufacturing and electronic component production.
Toho International Inc., established in 1988 and headquartered in Tokyo, Japan, is a manufacturer that deals with special alloys and non-ferrous materials for springs or other materials. The company's product includes Wire Drawing Dies, Cold Pressure Welders, and Precision Die Tools. It is also a manufacturer of different wire ropes, such as Steel Wire Rope and Core Wire for Catheter Tube. Its wire drawing dies are made from materials that are designed to withstand high pressures and temperatures. It has achieved ISO 9001 and ISO 14001 certification. The company delivers its products in the Wire and Cable industry.
Thai Special Wire Co., Ltd., established in 1974 and located in Lat Lum Keao, Pathumthani, is a manufacturer of specialty steel. The company offers a range of products that include piano wires, hard-drawn steel wires, oil-tempered wires, and low-carbon steel wires. These products are used in musical instrument manufacturing, the construction of nails, manufacturing of durable springs and suspension springs, and the manufacturing of household items. The company’s products cater to industries such as musical instruments, construction, automotive, manufacturing, and general manufacturing. The company has also been certified with the ISO 9001:2015 Quality Management Standard and ISO 14001:2015 Environmental Management System.
HIRANO STEEL CO., LTD. established in March 1939 and headquartered in Koto-ku, Tokyo, Japan, is a manufacturer and supplier of various metal materials. The company's product range includes Wire, Bar, Plate/Strip, spring materials for electronic components, and metal components for agricultural machinery. These products serve manufacturing processes, electronic device production, infrastructure projects, and agricultural applications. Industries primarily served include manufacturing, electronics, agriculture, and road construction. Additionally, it offers road construction-related materials, sales of spring processing equipment, and related components.
Nippon Steel SG Wire Co., Ltd. is a manufacturer of steel wire products, established in 1938, and headquartered in Chiyoda-ku, Tokyo, Japan. Its diverse product range includes oil tempered wire, piano wire for valve springs, hard drawn steel wire, shaped wire, and plated wire. These products find application in various industries, including automobiles, home appliances, precision equipment, and civil engineering construction The company acquires public certifications such as JIS and ISO. The company also actively promotes quality assurance activities across the entire supply chain, encompassing raw material procurement, manufacturing, shipping, and distribution.
J-Witex Corporation, headquartered in Kaizuka-Shi, Osaka, Japan, and established in 2007, is a manufacturer of galvanized wires and strands used for supporting power and telecommunication cables. It produces various kinds of wire ropes precisely meeting the needs of social industries, such as loading bulky cargo like containers, elevators, and construction machinery. Its galvanized wires are also utilized for control cables and precision springs in automobile and major industrial machinery. The company has been ISO9001 and ISO14001 certified since 2007, and was formed through the merger of three companies: Kokoku Steel Wire Ltd., Kanto Wire Products Corporation, and Metax Corporation.
Glass Tools Accessories Ltd was founded in 1992 and is headquartered in Auckland, New Zealand, as a supplier of all specialized accessories, tools, and consumables to the glass, allied trades, and auto glass industries. GTA serves as a representative for globally celebrated and known businesses. The corporation also possesses products that are created using its proprietary tooling. The company consistently evaluates its product portfolio and seeks novel offerings to address the expanding demands within the sector.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | HIRANO STEEL CO., LTD. |
28.3%
|
| 2 | STERLER Technology., Ltd. |
17.4%
|
| 3 | Thai Special Wire Co., Ltd. |
13.0%
|
| 4 | NIPPON STEEL SG WIRE CO.,LTD. |
13.0%
|
| 5 | Toho International Inc. |
13.0%
|
| 6 | Glass Tools Accessories Ltd |
8.7%
|
| 7 | J-WITEX CORPORATION |
6.5%
|
Derivation Method
The ranking is calculated based on the click share within the piano wire page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
4 | 57.1% |
|
Taiwan
|
1 | 14.3% |
|
Thailand
|
1 | 14.3% |
|
New Zealand
|
1 | 14.3% |
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