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This section provides an overview for crack scales as well as their applications and principles. Also, please take a look at the list of 11 crack scale manufacturers and their company rankings. Here are the top-ranked crack scale companies as of January, 2025: 1.Shinwa Rules Co., Ltd., 2.STAREK Scientific Co., Ltd., 3.MTM Precision Sdn Bhd.
Table of Contents
A crack scale, as its name suggests, is a specialized ruler designed for measuring cracks in reinforced concrete (RC) structures, concrete walls, eaves, and similar structures. The guideline for repairs and seismic reinforcement in structures typically considers a crack width of 0.5 cm or more as significant, necessitating the use of a crack scale to assess repair needs.
Combined with devices like pen scales, ultrasonic diagnostic measuring instruments, and CT scans, crack scales help in verifying the degree of aging and allow for more detailed measurement and diagnosis.
Applications of crack scales include measuring shrinkage cracks caused by mortar shrinkage in painted walls, hairline cracks due to coating deterioration, and structural cracks resulting from uneven settlement of structures.
In large RC structures such as water storage tanks, the pH of concrete can deviate due to moisture and ionic gradients. Regular inspections using crack scales are vital for monitoring concrete aging and preventing potential collapses.
Crack scales are available in materials like plastic, stainless steel, and aluminum. They can be found at most DIY stores and are reasonably priced, starting at around three dollars.
These scales have distinctive measuring graduations, with line widths ranging from 0.05 to 2 mm printed in sequence. Commonly 4 to 6 inches long, they are small enough to fit in a work clothes pocket. Metal scales often feature a central watermark hole.
The standard measurement for crack width varies depending on the structure. For example, a 1 cm crack in mortar may not require immediate repair, but a 3 mm crack in a condominium or a 0.3 mm crack in a water tank may necessitate prompt attention. Crack scales are thus invaluable for frequent, on-the-spot measurements.
*Including some distributors, etc.
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Shinwa Rules Co. was founded in Niigata, Japan, in 1971. Shinwa Rules Co. develops a variety of measuring products including calipers, thermometers, hygrometers, laser optical apparatuses, and sheet heating elements. Above these, Shinwa develops metallic rulers and squares. Additionally, Shinwa operates as an OEM supplier for special calibrations and machine tools, special surface fabrication, and etching on metallic parts.
Globall Hardware & Machinery Sdn. Bhd., established in 1987 and based in Johor, Malaysia, is a supplier of hand tools, power tools, and machinery. The company delivers a wide range of tools to cater to various industries, including industrial, automotive, construction, garden tools, and water pump and air compressor solutions. The company product list includes abrasive products, cordless tools, generators, measuring tools, and more, ensuring that customers have access to a wide range of products for various applications.
AS ONE Corporation, established in 1962, is a Japanese supplier of laboratory instruments and consumables, headquartered in Nishi Ward, Osaka. Through their website, AXEL GLOBAL, the company offers a selection of 3 million products. These include physical and chemical science instruments such as universal and measuring instruments, as well as laboratory instruments for cultivation, separation, and analysis. They also provide research facility equipment such as storage equipment and laboratory chairs. AS ONE extends its offerings to include industrial instruments like dehumidifying storage and organization and conveyance equipment. Additionally, AS ONE serves the healthcare sector with products for hospitals and nursing homes.
Misumi Group Inc., established in 1963, is a distributor of mechanical and electrical products based in Tokyo, Japan. The company has other subsidiaries, namely Misumi Corporation, Suruga Production Platform Co. Ltd and Suruga Seiki Co. Ltd. Its catalog includes shafts, cables, punches, actuators and switches. These products are used in machinery and electricity industries. The company also has an online catalog which has sold over 30 million items. In addition, it has a global network of sales offices, logistics and manufacturing sites in Asia, the Americas and Europe.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Shinwa Rules Co., Ltd. |
19.0%
|
| 2 | STAREK Scientific Co., Ltd. |
14.3%
|
| 3 | MTM Precision Sdn Bhd |
14.3%
|
| 4 | Salamander Tools. |
9.5%
|
| 5 | Ichiban Precision Sdn Bhd. |
9.5%
|
| 6 | Promat HK Limited |
9.5%
|
| 7 | Global Hardware & Machinery sdn bhd |
4.8%
|
| 8 | Celtic Surveys Ltd. |
4.8%
|
| 9 | CONMAX RESOURCES SDN. BHD. |
4.8%
|
| 10 | MISUMI Group Inc. |
4.8%
|
Derivation Method
The ranking is calculated based on the click share within the crack scale page as of January 2025. 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
|
3 | 37.5% |
|
Malaysia
|
3 | 37.5% |
Ireland
|
1 | 12.5% |
China
|
1 | 12.5% |
24 products found
24 products
Myzox Co., Ltd.
80+ people viewing
Last viewed: 15 hours ago
Fast Response
Crack measurement tool for measuring the displacement of cracks that occur in walls, floors, etc. of structures ■Features ・Crack gauge: A gauge t...
2 models listed
Myzox Co., Ltd.
60+ people viewing
Last viewed: 4 hours ago
Fast Response
The scale of horizontal displacement can be accurately measured. ■Features ・Horizontal displacement scale ・Glue across the crack using commercia...
Myzox Co., Ltd.
70+ people viewing
Last viewed: 4 hours ago
Fast Response
A compact and convenient product that can measure the width and depth of cracks in foundations and buildings. ■Features With depth gauge and crack...
Myzox Co., Ltd.
90+ people viewing
Last viewed: 4 hours ago
Fast Response
A dedicated scale that easily and accurately measures concrete crack dimensions.
4 models listed
Kett Electric Laboratory Co. Ltd.
470+ people viewing
Last viewed: 2 hours ago
Fast Response
■ Characteristics ･ The TZ-1000 is a simple crack measurement gauge that measures the width of cracks and behaviors generated in the building. ･ By...
2 models listed
SANKO ELECTRONIC LABORATORY CO.,LTD
150+ people viewing
Standard Response
■ Features ・ Easy operation just by pressing the switch ・ Measurable in the range of 0.05mm to 2mm ■ Use The cracks such as concrete, metal, etc...
Hottinger Brüel & Kjær
240+ people viewing
Last viewed: 4 hours ago
Standard Response
5.0 Company Review
■Component crack length detection The RDS gauge series is a crack length detection gauge that determines the degree of crack propagation in compone...
4 models listed
