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  1. Home
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  3. 庄司歯車エンジニアリング
  4. New product information: A new modular type of self-locking rack jack has been introduced, featuring a rack movement of 17 mm per one rotation of the input shaft.
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  • Sep 24, 2012
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Sep 24, 2012

New product information: A new modular type of self-locking rack jack has been introduced, featuring a rack movement of 17 mm per one rotation of the input shaft.

庄司歯車エンジニアリング 庄司歯車エンジニアリング
This is the second product that combines a modular type jack with a reducer equipped with a new self-locking mechanism that does not use the conventional self-locking function's worm gear at all. The input shaft torque is light at 1.01 kgm at 100K, and a fast advance of 17 mm per rotation has been achieved. We propose this to customers who want to lift quickly with a small force and aim for space-saving in various factory production lines. Additionally, it is also possible to attach a guide rod (twin shaft type).
SLB-100-17
SLB-100-17
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SLB-100-17.pdf[268805]

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We will provide a collection of case studies: How to use the new self-locking mechanism, Shoji Lock?

This is a reduction device with a new self-locking mechanism (Shoji Lock) that replaces worm gear reducers. It includes a lineup of reduction gears, rack jacks, and winches.

Compared to conventional worm gear reducers, our compact design and high efficiency have received positive feedback. However, we also hear many voices expressing resistance or anxiety towards new products, as well as those who prefer to stick with traditional options. We encourage both those who are hesitant and those who love new things to take a look at our case studies and consider them. Conversely, we welcome valuable suggestions on potential applications as well!

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SLM3000.JPG

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

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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Jack, rack type (without screws), manual with self-locking function, 50 kgf.

Faster and more efficient compared to screw jacks. It can be operated quickly and lightly by hand, has a compact design, and can hold loads without the need for a stopper, making it highly safe.

Unlike conventional screw jacks, this rack-type jack features an overwhelmingly fast rise and fall speed due to its high efficiency, making it easy to operate. It is equipped with a unique self-locking mechanism that allows it to hold loads without brakes or stoppers, making it a revolutionary jack. The rated thrust load is 50 kgf, and it can be operated easily by hand. It advances exactly 4 mm per rotation, allowing it to function as a round-number linear jack. With a significant advancement amount, it becomes a highly versatile rack jack and linear actuator. (For more details, please refer to catalog frame number SLM-050-4.0) *For more information, please visit our official website or feel free to contact us.

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Jack, rack type (without screws), manual self-locking function, 100 kgf.

Faster and more efficient compared to screw jacks. It can be operated quickly and lightly by hand, features a compact design, and can hold loads without the need for a stopper, ensuring excellent safety.

Unlike conventional screw jacks, this rack-type jack features an overwhelmingly fast ascent and descent speed due to its high efficiency, making it easy to operate. It also comes equipped with a unique self-locking mechanism that allows it to hold loads without brakes or stoppers, making it a revolutionary jack. With a rated thrust load of 100 kgf, it can be operated easily by hand, advancing 3.2 mm per rotation, making it a highly versatile rack jack and linear actuator. (For more details, please refer to catalog frame number SLM-100-3.2) *For more information, please visit our official website or feel free to contact us.*

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IMG_6887.JPG

Jack, rack type (without screws), manual self-locking function, 200 kgf.

Faster and more efficient compared to screw jacks. It can be operated quickly and lightly by hand, has a compact design, and can hold loads without the need for a stopper, ensuring excellent safety.

Unlike conventional screw jacks, this rack-type jack features an overwhelmingly fast ascent and descent speed due to its high efficiency, making it easy to operate. It also comes equipped with a unique self-locking mechanism that allows it to hold loads without brakes or stoppers, making it a revolutionary jack. With a rated thrust load of 200 kgf, it can be operated easily by hand, advancing exactly 3 mm per rotation, which allows it to function as a round-number linear jack. Its significant advancement makes it a highly versatile rack jack and linear actuator. (For more details, please refer to catalog frame number SLM-200-3.0.) *For more information, please visit our official website or feel free to contact us.*

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achivement_16.jpg

Jack, rack type / no screws used, self-locking electric/manual 100 kg.

Compared to screw jacks, this is a hybrid type that allows for high speed and high efficiency, can be operated with commercially available electric tools, and can also be operated manually by attaching a handle.

Unlike conventional screw jacks, this rack-type jack features an overwhelmingly fast rise and fall speed due to its high efficiency, making it easy to operate. Therefore, it can be operated quickly with general electric tools (drivers/drills). It also comes equipped with a unique self-locking mechanism, allowing it to hold loads without brakes or stoppers, making it a revolutionary jack. Moreover, it is designed to be lightweight and compact while excelling in strength and durability. Additionally, it employs an omnidirectional actuator that can accommodate upward, downward, and lateral movements. It is also suitable for rack-type electric cylinders. This model has a rated thrust load of 100 kgf. *For more details, please visit the official website or feel free to contact us.*

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IMG_0746.JPG

Jack, rack type / no screws used, self-locking electric/manual, 200 kg.

It is a hybrid type that can be operated with commercially available electric tools due to its high speed and high efficiency compared to screw jacks, and can also be operated manually by attaching a handle.

Unlike conventional screw jacks, this rack-type jack features an overwhelmingly fast rise and fall speed due to its high efficiency, making it easy to operate. As a result, it can be operated quickly with common electric tools (drivers/drills). Equipped with a unique self-locking mechanism, this revolutionary jack can hold loads without brakes or stoppers. It is not only strong and durable but also designed to be lightweight and compact. Additionally, it employs an omnidirectional actuator that can accommodate upward, downward, and lateral movements. It is also ideal for rack-type electric cylinders, with a rated thrust load of 200 kgf and a reduction ratio of 63. *For more details, please visit our official website or feel free to contact us.

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Related catalog(1)

Self-Lock Rack Jack Product Catalog

Self-Lock Rack Jack Product Catalog

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庄司歯車エンジニアリング
Building materials, supplies and fixtures manufacturers
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Case Study 003: Verbalizing the "somewhat inconvenient" issues faced by HR and General Affairs. A case of organizing challenges and proposals. Client in the home care industry with approximately 700 employees.

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"Somewhat inconvenient" can quickly transform into "cost" and "risk" due to an increase in the number of employees or an expansion of business scope. What we are introducing this time is the process of a home care industry company with around 700 employees verbalizing their frustrations regarding payroll operations and considering the optimal system configuration. When we verbalize "somewhat inconvenient"... 1) The support quality of the payroll system being used is poor, causing significant stress. 2) The number of employees has been on the rise in recent years, raising concerns about running costs due to the pay-per-use system. 3) Macros are being used for data integration with a separate system. 4) We want to make backend processes like payroll payment reports easier. Information from iBP What is important here is to decide how to handle the multiple issues that have arisen, which is the "prioritization of tasks." You can read more without needing to input personal information. Please visit the iBusiness Partners column page! https://ibp-column.sfsite.me/36302

Jul 23, 2026

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We have released the materials for the cloud management tool "Loglass"!

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We have released an introduction document for our cloud management system "Loglass." This document clearly presents the features and usage images of "Loglass," which streamlines management tasks such as budget formulation, performance management, forecast updates, and management accounting. Loglass centralizes data scattered across various systems and spreadsheets, reducing the effort required for collection, aggregation, and analysis, thereby supporting quicker and more accurate management decisions. Additionally, it helps address challenges such as the personalization of management tasks and increased workload through automation of data aggregation, history management, and real-time analysis functions. The document also includes actual implementation examples and the effects of implementation, showcasing results such as reduced workload, enhanced analysis capabilities, and improved decision-making speed. Companies considering promoting DX in management or reviewing operations centered around Excel and spreadsheets are encouraged to take a look.

Jul 22, 2026

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Hotron Group Case Page

[Case Study] Hotron pursues sensor technology and creates products that generate safe and comfortable living spaces. We would like to introduce Hotron products that support people's lives throughout the city.

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We will introduce the implementation results of the sensor technology developed by the Hotron Group, which has been cultivated over more than half a century, through customer case studies. In addition to automatic door sensors, we also offer a wide range of vehicle detection sensors and nursing/care sensors. We have many implementation examples available, so please take a look at the case study page.

Jul 22, 2026

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HK-2

Recommended for earthquake measures for automatic doors and equipment! Seismic device HK-2.

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Japan is one of the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of major earthquakes occurring. Regarding the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake countermeasures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" For more details, please download the materials or contact us.

Jul 22, 2026

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Breaking away from a single manufacturer option — Introducing agents to cut the "negative loop" in the back office.

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Caught up in daily data entry, approvals, and inquiries, I want to improve but can't find the time to consider it. Such voices from the field are not uncommon. Even though it's clear that systemization is necessary, the reality is that people often get stuck on where to start and which products to choose. Common frustrations include "I spent time requesting materials and demos, but I'm not sure if it fits my company," and "After implementation, the inquiry contacts are scattered among different manufacturers, making it hard to connect quickly when issues arise." This moves us further away from the original goals of efficiency and reducing dependency on individuals. This is where the option of "agent implementation" comes into focus. Agents that handle products from multiple manufacturers have the advantage of providing unbiased comparisons and neutral proposals without favoring specific products. Even within the same category of systems, they can present the pros and cons side by side for a balanced evaluation. There is also a common misconception regarding pricing; in most cases, there is little to no price difference between direct sales from manufacturers and agents. You can read more without needing to input personal information. Please visit the iBusiness Partners column page! https://ibp-column.sfsite.me/33869

Jul 21, 2026

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