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  6. Digital Scale KA300 (HK300) Standard 1μm/5μm

Digital Scale KA300 (HK300) Standard 1μm/5μm

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last updated:Jun 08, 2026

Ushiyama Electric Co., Ltd.
Ushiyama Electric Co., Ltd.
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Achieving micron precision with a high resolution of 1μm! The KA300 glass digital scale (formerly HK300) is ideal for machine tools.

The KA300 series is a standard type glass digital scale for machine tools, handled by Ushiyama Electric after inheriting the business from Hakkou Densou. By adopting a glass scale, it achieves high precision and durability. The resolution can be selected from two types: high-resolution type (1μm) and standard type (5μm), allowing for differentiation based on application and required precision. ◆ Before placing an order! ◆ The table movement amount specified in the machine manufacturer's specifications may differ from the actual machine. Be sure to confirm the movement amount on the actual machine and order a model that fits the machine. Of course, the scale length must be longer than the table movement amount. If a scale shorter than the movement amount is installed and the table is moved to the endpoint, it will be instantly destroyed and will be excluded from warranty coverage, so please be careful. The measurement lengths range from 70mm to 1020mm in 50mm increments, accommodating various machine tools such as lathes, milling machines, and grinding machines. Mounting attachments are included as standard accessories, making installation smooth. By combining it with a digital counter (display), it significantly improves positioning accuracy during machining, contributing to enhanced work efficiency and quality.

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Digital Scale KA300 (HK300) Standard 1μm/5μm

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basic information

【Model Number】KA300 Series 【Type】Standard Type (Glass Digital Scale) 【Measuring Length】70mm to 1020mm (in 50mm increments, over 20 models available) 【Resolution】1μm (High Resolution Type) / 5μm (Standard Type) 【Accessories】Mounting Attachment (Standard Included) 【Output】TTL Signal Compatible ◆ Before Ordering! ◆ The table movement specifications in the machine manufacturer's documentation may differ from the actual machine. Always verify the movement amount with the actual machine and order a model that fits the machine. Of course, the scale length must be longer than the movement amount. Installing a scale shorter than the movement amount and moving the table to the endpoint can result in instant destruction and will void the warranty, so please be careful.

Price information

Please feel free to contact us. Ushiyama Electric Co., Ltd. Phone: 03-5355-6231 Email: web@ushiyama.co.jp

Delivery Time

Please contact us for details

Applications/Examples of results

【Main Uses】 - Lathes (position measurement for X and Z axes) - Vertical and horizontal milling machines (installation on X, Y, and Z axes) - Surface grinders and internal grinders (precise control of feed amount) - Large machine tools such as gantry planomillers 【Examples of Achievements】 By combining with digital counters (such as the SDS3/SDS6 series), we have digitized older machine tools that were operated solely with analog handles. This has been utilized to improve the efficiency of positioning tasks and reduce human errors. We have installation achievements on machine tools from major domestic manufacturers such as Kasuga Seisakusho milling machines, Makino milling machines, and Mori Seiki machines. Our products are widely adopted across various sectors, primarily among electronic and electrical manufacturers, as well as machinery and equipment manufacturers, ranging from small to large enterprises. In 2007, our company was entrusted by Hakkou Densou Co., Ltd. in Shizuoka Prefecture to act as an import agent for digital scales, and we have continued to assist with the sale of some products. As of May 2020, when Hakkou Densou Co., Ltd. ceased the sale of digital scales, our company took over the import and sales entirely, leading to the continuation of this business.

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Model number overview
KA300-70 / 1μm Old part number: HK300-70-1
KA300-120 / 1μm Old part number: HK300-120-1
KA300-170 / 1μm Old part number: HK300-170-1
KA300-220 / 1μm Old part number: HK300-220-1
KA300-270 / 1μm Old part number: HK300-270-1
KA300-320 / 1μm Old part number: HK300-320-1
KA300-370 / 1μm Old part number: HK300-370-1
KA300-420 / 1μm Old part number: HK300-420-1
KA300-470 / 1μm Old part number: HK300-470-1
KA300-520 / 1μm Old part number: HK300-520-1
KA300-570 / 1μm Old part number: HK300-570-1
KA300-620 / 1μm Old part number: HK300-620-1
KA300-670 / 1μm Old part number: HK300-670-1
KA300-720 / 1μm -
KA300-770 / 1μm -
KA300-820 / 1μm -
KA300-870 / 1μm -
KA300-920 / 1μm -
KA300-970 / 1μm -
KA300-1020 / 1μm -
KA300-70 / 5μm Old part number: HK300-70-5
KA300-120 / 5μm Old part number: HK300-120-5
KA300-170 / 5μm Old part number: HK300-170-5
KA300-220 / 5μm Old part number: HK300-220-5
KA300-270 / 5μm Old part number: HK300-270-5
KA300-320 / 5μm Old part number: HK300-320-5
KA300-370 / 5μm Old part number: HK300-370-5
KA300-420 / 5μm Old part number: HK300-420-5
KA300-470 / 5μm Old part number: HK300-470-5
KA300-520 / 5μm Old part number: HK300-520-5
KA300-570 / 5μm Old part number: HK300-570-5
KA300-620 / 5μm Old part number: HK300-620-5
KA300-670 / 5μm Old part number: HK300-670-5
KA300-720 / 5μm Old part number: HK300-720-5
KA300-770 / 5μm Old part number: HK300-770-5
KA300-820 / 5μm Old part number: HK300-820-5
KA300-870 / 5μm Old part number: HK300-870-5
KA300-920 / 5μm Old part number: HK300-920-5
KA300-970 / 5μm Old part number: HK300-970-5
KA300-1020 / 5μm Old part number: HK300-1020-5

Company information

Ushiyama

Ushiyama Electric Co., Ltd.

Industrial Machinery

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We are a company that sells and maintains wire harness processing machines. <Handled Wire Processing Equipment> Wire stripping machines, wire cutting machines, terminal crimping machines, tube cutting machines, cable cutting machines, fully automatic terminal crimping machines, fully automatic soldering machines. <Handled Wire Processing Equipment Manufacturers> KODERA (Kodera Electronic Manufacturing) , Union Machinery, Hakkou Electric, Trusoltech, Nippon Continuous Terminal, KOMAX, Schleuniger. <Sold Materials> Crimp terminals, electric wires, multi-core cables, flat cables, tubes, connectors, housings. <Material Handling Manufacturers> Yazaki, Sumitomo Electric, Tokai Rika, Furukawa Electric, Mitsubishi Electric Wire, Ryosei Electric, Nippon Terminal, TYCO, JST, Hirose Electric, JAE, Misawa Electric Wire, Sumitomo Electric Industries, Klabe.

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