A jack that can lift a load of 50 kN with a light manual operating force (input shaft torque of approximately 11 Nm). It is an applied product of the new self-locking mechanism (Shoji Lock).
This is a jack developed for component maintenance. It is a manual jack equipped with a high-efficiency self-locking mechanism using spur gears, featuring the Shoji lock. The main body weighs 36 kg and is made of aluminum, designed with a focus on lightweight and manual operability. There are two input shafts (high/low), allowing for easy switching between quickly turning the handle when there is no load and applying force when there is a load, simply by changing the insertion of the handle. It can be widely used in places without power, as well as for disaster preparedness and energy-saving measures. It can also be used electrically.
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basic information
【Features】 ○Safety →Simple structure that is less prone to failure, preventing operational mistakes ○Simple and space-saving ○Quiet operation (no ratchet noise) ○Durability that sets it apart from others ●For more details, please contact us or download the catalog.
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Applications/Examples of results
It has been adopted as a tool for replacing transmission line tower components. Since the work is in a mountainous area, it can be easily operated manually to lift 3 tons without a power source. Made of aluminum, it is relatively lightweight (about 36 kg) and can be carried to the site on your back, among many other advantages.
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Company information
The load-holding function equipped reduction mechanism (shoji-lock) has been developing applied products such as winches and rack jacks since the early 2000s. Steady sales activities have borne fruit, and it has begun to be adopted for various applications. Unlike conventional worm reduction gears with self-locking functions where the input and output shafts are orthogonal, this mechanism has them aligned in a straight line (inline), allowing for a compact design and space-saving, which has received high praise, resulting in a diverse range of practical examples. (Patents have been obtained in Japan, the United States, the EU (Germany, France, the UK), China, South Korea, and Taiwan.) Furthermore, starting in April 2023, we launched a new business for overseas parts procurement, beginning with Vietnam. Currently, a majority of our parts are also procured overseas, and we hope to leverage our achievements and network to assist companies struggling with cost reduction in parts procurement.