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The website has been renewed.
A completely new self-locking deceleration mechanism "shoji-lock" that allows you to hold the load at the desired position without the need for brakes. We have separated the lineup of deceleration dev…
31~53 item / All 53 items
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A new motorized self-locking compact winch has arrived. The winch itself locks automatically, so no motor brake is needed!
We have newly added a motor-mounted version of the self-locking compact winch developed by our company, which has received many requests. Even if the motor brake fails, the winch will self-lock, ensuring safety → achieving a double safety structure. It eliminates the need for brakes when combined with inexpensive motors that do not have a brake function, as the winch's self-locking feature holds the position when movement stops. Additionally, the overall compact design makes it easy to integrate into existing factory equipment. The selection of winches, motors, etc., will vary depending on various conditions (maximum load, frequency of use, etc.). Cleanroom specifications and heat-resistant specifications are also available; please feel free to contact us.
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A new motorized self-locking compact winch has been introduced. The winch itself locks automatically, so it can hold the load even without a motor brake. Moreover, its compact design makes it ideal for factory equipment and similar applications!
We have newly added a motor-mounted version of the self-locking compact winch developed by our company, which has received many requests. Even if the motor brake fails, the winch will self-lock, ensuring safety → achieving a double safety structure. It eliminates the need for brakes when combined with inexpensive motors that do not have brake functions, as the winch's self-locking feature holds the position when movement stops. Additionally, its overall compact design makes it easy to integrate into existing factory equipment. The selection of winches, motors, etc., will vary based on various conditions (maximum load, frequency of use, etc.). Cleanroom and heat-resistant specifications are also available; please feel free to contact us.
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Ideal for construction jigs and disaster response! We have prepared a demo unit of the "5-ton manual rack jack." It can move a load of 5 tons with light manual effort and will stop when you release your hand. It works in both forward and reverse rotation. This is a revolutionary rack jack. (Developed as a jig for replacing the belly materials of transmission line towers.)
【Product Features】 ◎ Easily jack up 5 tons manually → Input torque of about 11 Nm and excellent operability ◎ Stops immediately when the handle operation is halted, even under load → Self-locking mechanism Moreover, it works in both clockwise and counterclockwise directions ◎ Significantly more efficient compared to screw jacks → Approximately 4 times more advantageous in both power and speed ◎ More compact and less cumbersome compared to hydraulic jacks → No natural descent associated with hydraulics ◎ Requires no power source, making it widely usable in mountainous areas and disaster sites Also effective as an energy-saving measure This is a revolutionary rack jack with such features. This time, we have prepared a demonstration unit, as seeing is believing! Since there are no other examples, we thought it best for you to see it in person. Please feel free to contact us. Note that quantities are limited, so if you are interested, please act quickly! 【Possible Applications】 ・Various jigs for construction (temporary holding during welding, temporary support during work, etc.) ・Restoration of building tilt (debris processing during liquefaction and other disasters) ・Jigs for large equipment ・Opening and closing agricultural sluices ・Work in areas without power in mountainous regions, etc.
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We have prepared a demo unit of the "5-ton manual rack jack." It can move a load of 5 tons with light manual effort and will stop when you release your hand. It can rotate in both forward and reverse directions. This is a revolutionary rack jack.
【Product Features】 ◎ Easily jack up 5 tons manually → Input torque of approximately 11 Nm and excellent operability ◎ Stops immediately when the handle operation is halted, even under load → Self-locking Moreover, it works in both clockwise and counterclockwise directions ◎ Significantly more efficient compared to screw jacks → About four times more advantageous in terms of force and speed ◎ More compact and less cumbersome compared to hydraulic jacks → No natural descent associated with hydraulics ◎ Does not require any power source, making it widely usable in mountainous areas and disaster sites Also effective as an energy-saving measure This is a groundbreaking rack jack with such features. This time, we have prepared a demo unit, as seeing is believing! Since there are no other examples, we thought it best for you to see it in person. Please feel free to contact us. Note that quantities are limited, so if you are interested, please act quickly! 【Possible Applications】 ・Various jigs for construction (temporary holding during welding, temporary support during work, etc.) ・Restoration of building tilt (debris processing during liquefaction and other disasters) ・Jigs for large equipment ・Opening and closing of agricultural sluices ・Work in areas without power in mountainous regions, etc.
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We have prepared a demo unit of the "5-ton manual rack jack." It can move a load of 5 tons with light manual effort and will stop when you release your hand. It works in both forward and reverse rotation. It is a revolutionary rack jack.
【Product Features】 ◎ Easily jack up 5 tons manually → Input torque of about 11 Nm and excellent operability ◎ Stops immediately when the handle operation is halted, even under load → Self-locking Moreover, it can be rotated in either direction, forward or reverse ◎ Significantly more efficient compared to screw jacks → Approximately four times more advantageous in both power and speed ◎ Unlike hydraulic jacks, it is compact and space-saving → No natural descent associated with hydraulics ◎ Does not require any power source, making it widely usable in mountainous areas or disaster sites → Also effective as an energy-saving measure This is a revolutionary rack jack with such features. This time, we have prepared a demonstration unit, as seeing is believing! We thought it would be best for you to see it in person since there are no other examples. Please feel free to contact us. Note that quantities are limited, so if you are interested, please act quickly! 【Possible Applications】 ・Various jigs for construction (temporary holding during welding, temporary support during work, etc.) ・Restoration of building tilts (debris processing during liquefaction disasters, etc.) ・Jigs for large equipment ・Opening and closing agricultural sluices ・Work in areas without power in mountainous regions, etc.
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We have prepared a demo unit of the "5-ton manual rack jack." It can move a load of 5 tons with light manual effort and will stop when you let go. It works in both forward and reverse rotation. It is a revolutionary rack jack.
【Product Features】 ◎ Easily jack up 5 tons manually → Input torque of about 11 Nm and excellent operability ◎ Stops immediately when the handle operation is halted, even under load → Self-locking Moreover, it can be turned in either clockwise or counterclockwise direction ◎ Significantly more efficient compared to screw jacks → Approximately 4 times more advantageous in both power and speed ◎ More compact and less cumbersome compared to hydraulic jacks → No natural descent associated with hydraulics ◎ Requires no power source, making it widely usable in mountainous areas and disaster sites → Also effective as an energy-saving measure This is a groundbreaking rack jack with such features. This time, we have prepared a demo unit, as seeing is believing. Since there are no other examples, we thought it best for you to see it in person! Please feel free to contact us. Note that quantities are limited, so if you are interested, please act quickly! 【Possible Applications】 ・Various jigs for construction (temporary holding during welding, temporary support during work, etc.) ・Restoration of building tilt (debris removal during liquefaction and other disasters) ・Jigs for large equipment ・Opening and closing of agricultural sluice gates ・Work in areas without power in mountainous regions, etc.
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The homepage has been updated. The catalog that can be downloaded only from the HP has been renewed.
The PDF catalog for the completely new self-locking mechanism "shoji-lock" has been updated. It eliminates the 'slippage' found in traditional worm gear reducers, offers higher efficiency compared to worms, and allows for a lightweight and compact design, making it increasingly adopted in various fields. With an expanded lineup, we have categorized each product into "gear reducers," "linear actuators (rack jacks)," and "winches." You can download it from the top screen of our website (http://www.shoji-lock.jp/) under the news section. We encourage you to take a look and consider it. Thank you very much.
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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.
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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New product information: A new modular type of self-locking rack jack has been introduced, featuring a rack movement of 17 mm with one rotation of the input shaft.
This is the second product that combines a modular jack with a gearbox featuring a new self-locking mechanism that does not use the conventional self-locking worm gear at all. The input shaft torque is light at 1.01 kgm at 100K, and a fast advancement of 17 mm per rotation has been achieved. We propose this to customers who want to lift quickly with minimal force and aim for space-saving in various factory production lines. Additionally, it is possible to attach guide rods (twin shaft type).
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New Product Information: Manual Small Winch - New Pulley Drum Type Now Available in the Self-Locking Winch Series
The new compact and lightweight winch "S-Winch" series, which incorporates the already well-received new self-locking mechanism (Shoji-Lock), now features an internal pulley model that has been highly requested. Originally designed to be compact, lightweight, and with a sleek appearance, the addition of the internal pulley further enhances space-saving capabilities. It supports a maximum load torque of 5 kgm, achieving a light handle operation force (approximately 6 kg with a handle diameter of 120 mm). It can rotate in both forward and reverse directions and locks in place when stopped. It can be widely used in locations without power, as well as for disaster preparedness and energy-saving measures. Additionally, since it is not a ratchet, it operates very quietly, making it suitable for nighttime work and environments such as hospitals and stage equipment. As an application, a chain sprocket drum type is also possible.
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New product information: Manual small winch - New 300 kgf compatible product in the self-locking winch series.
The new compact and lightweight winch "S-Winch" series, equipped with the already well-received new self-locking mechanism (Shoji-Lock), has now been released with a maximum rope pulling force of 300 kgf, which has been highly requested. It achieves a compact and lightweight design with a neat appearance, allowing for space-saving. It can rotate in both forward and reverse directions and locks in place when stopped. It can be widely used in places without power, as well as for disaster preparedness and energy-saving measures. Additionally, since it is not a ratchet, it operates very quietly, making it suitable for nighttime work and environments such as hospitals and stage equipment. Furthermore, with a capacity of 300 kg, it can be used with confidence in caregiving and welfare-related applications.
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New Product Information: Manual Small Winch - New 300 kgf Compatible Product in the Self-Locking Winch Series.
The compact and lightweight winch "S-Winch" series, which incorporates the already well-received new self-locking mechanism (Shoji-Lock), now features a maximum rope pulling force of 300 kgf, as requested by many. It achieves a compact and lightweight design with a sleek appearance, allowing for space-saving. It can rotate in both forward and reverse directions and locks in place when stopped. It can be widely used in areas without power, as well as for disaster response and energy-saving measures. Additionally, since it is not a ratchet, it operates very quietly, making it suitable for nighttime work and environments such as hospitals and stage equipment. Furthermore, with a capacity of 300 kg, it can be safely used in caregiving and welfare applications.
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New Product Information: Manual Small Winch - New Pulley Drum Type in the Self-Locking Winch Series Now Available
The new compact and lightweight winch "S-Winch" series, which incorporates the already popular new self-locking mechanism (Shoji-Lock), now features an internal pulley model that has been highly requested. Originally designed to be compact, lightweight, and with a sleek appearance, the integration of the pulley further enhances space-saving capabilities. It supports a maximum load torque of 5 kgm, achieving light handle operation (approximately 6 kg when the handle diameter is 120 mm). It rotates in both forward and reverse directions and locks in place when stopped. It can be widely used in areas without power, as well as for disaster preparedness and energy-saving measures. Additionally, since it is not a ratchet, it operates very quietly, making it suitable for nighttime work and environments such as hospitals and stage equipment. As an application, a chain sprocket drum type is also possible.
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New Product Information: Manual Small Winch - New 100 kgf Compatible Product in the Self-Locking Winch Series.
The new compact and lightweight winch "S-Winch" series, which incorporates the already well-received new self-locking mechanism (Shoji-Lock), now features a maximum rope pulling force of 100 kgf, as requested by many. It has the same appearance as the conventional 50 kgf model, but with double the maximum rope pulling force. It achieves a compact and lightweight design with a sleek appearance, allowing for space-saving. It can rotate in both forward and reverse directions and locks in place when stopped. It can be widely used in areas without power, as well as for disaster preparedness and energy-saving measures. Additionally, since it is not a ratchet, it operates very quietly, making it suitable for nighttime work and environments such as hospitals and stage equipment.
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The website has been updated. You can watch video explanations of the "50KN Rack Jack" and "Rack Jack with Guide Table Lifter" on YouTube.
We explain product features that are difficult to understand through images and captions in a video. In particular, it's a must-see to watch a 50 kg person actually riding the table lifter and easily operating the handle. Even when the handle is released, it maintains its position and does not budge under a load of 50 kg. You can find it on the homepage (http://www.shoji-lock.jp/) on the top screen under the latest information. Please take a look.
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We have prepared CAD drawings for products equipped with the new self-locking mechanism "shoji-lock."
We are Shoji Gear Engineering, developing, manufacturing, and selling inline reducers, winches, and jacks equipped with the new self-locking mechanism "shoji-lock," which allows for a more efficient, lightweight, and compact design than worm reducers. We have received numerous inquiries such as, "How compact is it really?" and "What do you mean by lightweight?" Therefore, we have attached CAD drawings (2D) for all products listed on Ipros. Please feel free to use them during your design process or consideration. Additionally, do not hesitate to contact us for any other inquiries.
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Iprosu Limited "New Self-Locking Reduction Gear and Others" Demo Machine Rental Campaign Implementation
This is a range of products equipped with a completely new self-locking mechanism (Shoji Lock) that replaces the worm gear. They have received positive feedback for being compact and having light handle operation. We are conducting a demo machine rental campaign so that you can experience them firsthand. We have prepared the following products from our application range, so please feel free to contact us. <Inline Reducers> ○ Load 5 kgm, Reduction Ratio 23 (SRM-005-23) ○ Load 5 kgm, Reduction Ratio 36 (SRM-005-36) ○ Load 10 kgm, Reduction Ratio 38 (SRM-010-38) <Small Winch> ○ Manual Type Load 30 kg (SWM-030-08) <Rack Jack> ○ Manual Type Load 100 kgf (SLM-100-16) *Please feel free to consult us about other products as well.
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Iprosu Limited "New Self-Locking Reducer and Other" Demo Machine Rental Campaign Ongoing
This is a range of products equipped with a completely new self-locking mechanism (Shoji Lock) that replaces the worm gear. They have received positive feedback for being compact and having light handle operation. We are currently conducting a demo machine rental campaign so that you can experience them firsthand. We have prepared the following products from our application lineup, so please feel free to contact us. <Inline Reducers> ○ Load 5 kgm, Reduction Ratio 23 (SRM-005-23) ○ Load 5 kgm, Reduction Ratio 36 (SRM-005-36) ○ Load 10 kgm, Reduction Ratio 38 (SRM-010-38) <Small Winch> ○ Manual Type Load 30 kg (SWM-030-08) <Rack Jack> ○ Manual Type Load 100 kgf (SLM-100-16) *Please feel free to consult us about other products as well.
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Iprosu Limited "New Self-Locking Reducer and Others" Demo Machine Rental Campaign Now Underway
This is a range of products equipped with a completely new self-locking mechanism (Shoji Lock) that replaces the worm gear. They have received positive feedback for being compact and having light handle operation. This time, we are conducting a demo machine rental campaign so that you can experience them firsthand. We have prepared the following products from our application lineup, so please feel free to contact us. <Inline Reducers> ○ Load 5 kgm, Reduction Ratio 23 (SRM-005-23) ○ Load 5 kgm, Reduction Ratio 36 (SRM-005-36) ○ Load 10 kgm, Reduction Ratio 38 (SRM-010-38) <Small Winch> ○ Manual Type Load 30 kg (SWM-030-08) <Rack Jack> ○ Manual Type Load 100 kgf (SLM-100-16) *Please feel free to consult us about other products as well.
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Iprosu Exclusive "New Self-Locking Mechanism Equipped" Compact Manual Winch Stainless Steel Type Demo Unit Rental Starts
This is a product that applies a completely new self-locking mechanism (Shoji Lock) as a replacement for the worm gear. It can maintain its position regardless of the direction of rotation when the handle is stopped, and it has been well received for being compact and having light handle operation. Since it is made of stainless steel, it is suitable for clean rooms (up to a load of 50 kg). We have prepared a demo unit of this product, which has received many inquiries. There is a limited quantity available, so please consult with us as soon as possible. Additionally, we have various demo units for other products, so feel free to reach out to us.
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New Product Information: 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). This jack was developed for component maintenance as an application product of the new self-locking mechanism (Shoji Lock). The body weight is 36 kg and it is made of aluminum. It is 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 a load is present simply by changing the insertion of the handle. It can be widely used for work in locations without power, as well as for disaster preparedness and energy-saving measures. It can also be used electrically.
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We have changed our organization to a corporation.
As of May 22, 2012, our company has changed its organization from a "limited liability company" to a "joint-stock company." We will strive to achieve further growth and expansion of our business with this opportunity. We sincerely ask for your continued support and patronage.
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New Product Information: Rack Jack with Guide and Self-Lock Function
The "S-Linear Actuator" series, which has already received great acclaim, has now introduced a new model with a guide. By equipping it with a guide parallel to the rack, the strength against buckling and other issues has increased, further expanding its range of applications. It achieves a rated thrust load of 600 kgf while allowing for a compact design. Additionally, it can be operated with common electric tools (drill drivers), making it suitable for work in locations without power.