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  6. Jack 50KN manual/electric rack jack with self-locking function

Jack 50KN manual/electric rack jack with self-locking function

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SLM-5000-1.48

last updated:Jul 05, 2022

庄司歯車エンジニアリング
庄司歯車エンジニアリング
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A jack that can lift a load of 50 kN with a light manual operating force (input shaft torque of approximately 11 Nm). This is an application product of the new self-locking mechanism (Shoji Lock).

This is a jack developed for component maintenance. It is a manual jack with a high-efficiency self-locking mechanism utilizing 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. It has 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 for work in areas without power, as well as for disaster preparedness and energy-saving measures. It can also be used electrically.

    Gearbox
SLM3000.JPG

Jack 50KN manual/electric rack jack with self-locking function

SLM3000.JPG
SLM3000.JPG
  • Related Link - http://shoji-lock.jp/
  • Special site - Product/service details - https://pr.mono.ipros.com/shoji-lock/product/

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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) ○Robustness 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 mountainous areas, it can be easily manually lifted with a 3-ton jack even without a power source. Made of aluminum, it is relatively light (about 36 kg) and can be carried to the site on your back, among many other advantages.

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Brochure for Parts Procurement in Vietnam and Overseas

Brochure for Parts Procurement in Vietnam and Overseas

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News about this product(8)

Ginza certain brand showcase window

The second volume of the case studies for the new self-locking deceleration mechanism "shoji-lock" has been completed.

  • Catalog news

- Small winches have been adopted in shops and museums in Ginza. = They have received positive feedback for their design, being compact and unobtrusive in black. = They are also praised for being easy to operate by ourselves, among other things. Instead of a worm gear, we have developed a completely new inline reducer that self-locks when motion stops, as well as a small winch that maintains position when the handle is stopped in both forward and reverse rotation instead of using a ratchet. Due to the positive reception and increased achievements in various fields, we have created a second edition this time. Please download it and consider it!

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Inline reducer for ingot lifting device.

We will provide an explanatory booklet: Why does it stop? The secret of the new self-locking deceleration mechanism 'shoji-lock'

  • Catalog news

A completely new inline reducer that self-locks despite being a spur gear instead of a worm gear. Why does it self-lock? What is the internal structure like? We often get asked these questions. While showing a demo unit or a cut model can help people understand, such opportunities are rare. Therefore, we created a simple explanatory document. Please take a look at this, and if you're interested, feel free to check out our specific products and contact us.

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SWM050-12S Stainless Steel Type

The Ipros version of the S-Winch/S-Linear Actuator product catalog has been updated.

  • Catalog news

This is a completely new compact winch and rack jack that self-locks regardless of where it stops in forward or reverse rotation, not using a ratchet. It has received positive feedback from various sectors, and due to the increased lineup, we have renewed it this time. Please download it and consider it! Additionally, the comprehensive catalog featuring applied products such as those with motors is available for download from our company website. Please check it out as well.

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New Product Information: Introducing the guide-equipped self-locking rack jack with a rack movement of 20mm per one rotation of the input shaft.

  • Product news

This product combines a modular type jack with a gearbox that features a new self-locking mechanism without using the conventional self-locking worm gear at all. There are types with rated thrust loads of 50 kg and 100 kg, both achieving a travel distance of 20 mm per rotation, which is significantly faster than traditional screws. We recommend this for customers who want to lift quickly with minimal force and aim for space-saving solutions in various factory manufacturing lines. Additionally, by attaching guide rods, the strength against buckling is increased, resulting in smooth movement. It is also possible to change the gearbox to achieve a rotation of 9.5 mm. The most notable feature is that it can hold the stopping position continuously under load, with self-locking occurring when the movement is halted.

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庄司歯車エンジニアリング

庄司歯車エンジニアリング

Machine elements and parts

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The load-holding function equipped reduction mechanism (shoji-lock) has been developed for application 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, our design features them in a straight line (inline), allowing for a compact design and space-saving, which has received high praise and resulted 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 overseas parts procurement business, beginning with Vietnam. Currently, a majority of our parts are procured overseas, and leveraging our achievements and network, we aim to assist companies struggling with cost reduction in parts procurement.

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