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The reciprocating sliding valve vacuum pump, VS/VSW series, has sufficient mechanical strength based on years of experience and is designed with a focus on durability and maintainability. The main crank groove is supported by four conical roller bearings, and the eccentric crank mechanism for valve drive is also supported by ball bearings, allowing for easy adjustment and replacement. Adequate wall thickness (machining allowance) is set to consider the regrinding of the cylinder and valve surfaces. The inner surface of the cylinder has sufficient wall thickness machining allowance to allow for several borings and can accommodate special uses such as thermal spraying of wear-resistant alloys and press-fitting of sleeves. Similarly, the sliding surface of the valve also has sufficient re-cutting allowance, allowing for the application of wear-resistant and corrosion-resistant alloy coatings. The valve structure, combined with a unique automatic centering mechanism, maintains high performance over a long period. For more details, please contact us or refer to the catalog.
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basic information
【Features】 - Adopts a valve system for easy and quick maintenance and repairs, with sufficient cylinder thickness prepared for boring. - The crankshaft uses four special conical roller bearings, and the valve drive eccentric mechanism employs ball bearings, ensuring reduced friction and excellent corrosion resistance. - The crankshaft and connecting rods are made from forged materials, achieving durability and weight reduction. - Lubrication for the crankshaft and crosshead is done using a splash method, maintaining optimal conditions at all times. - The cylinder, crosshead, and crankshaft are finished with ultra-precision grinding to reduce friction loss. - The unit is designed to be compact, occupying two-thirds of the floor space of conventional models. - The two-stage type uses a common bed system, making foundation work and installation easy. ● For more details, please contact us or refer to the catalog.
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Delivery Time
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Applications/Examples of results
【Applications】 ○ Reduced pressure distillation, drying, concentration ○ Degassing (deairing, replacement) ○ Impregnation, filtration ○ Vacuum transport ○ Various other reduced pressure operations ● For more details, please contact us or refer to the catalog.
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Company information
Hiyoshi Products Co., Ltd. has been committed to customer satisfaction since its founding in the eighth year of the Taisho era, and has continuously practiced the creation of higher quality products. We have also strived to create a workplace where each employee can lead a vibrant professional life, making unceasing efforts towards a rich life and self-realization. Furthermore, we have boldly challenged new technologies and have been diligently working to develop into a company full of dreams. Hiyoshi Products Co., Ltd. has grown through communication with our users. In other words, in order for us employees to fulfill our dreams and achieve self-realization, improving quality and enhancing customer satisfaction are absolutely essential. This "customer-first principle" is the first step towards becoming a company full of dreams.
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