Notice of Summer Vacation

We develop cranes for the construction of transmission towers that incorporate customer feedback, ensuring safety and ease of use, contributing to the stable supply of electricity nationwide.

- By adopting a 2m top mast, safe assembly work such as support installation can be achieved while the mast is in place. - Smooth operation is possible with hoisting, elevation, and rotation inverter control. - Compact wireless operation. - Ground-mounted control panel makes maintenance easy. 【Jib Length】18.75m Working Radius: 1.65m to 18.0m Lifting Capacity: 16.61kN at 18.0m, 27.45kN at 13.5m 【Jib Length】20.915m Working Radius: 1.77m to 20.0m Lifting Capacity: 17.65kN at 20.0m, 27.45kN at 13.5m 【Ground Lift Height】Standard 117m, 147m, Maximum 165m 【Total Mast Length】Standard 100m, 130m, Maximum 150m 【Total Weight】32.0t (Crane body at 102m)

• crane

Incorporating customer feedback, we have developed a safe and user-friendly crane for the construction of transmission towers, contributing to the stable supply of electricity nationwide.

- By adopting a 2m top mast, safe assembly work such as support installation can be achieved while the mast is in place. - Smooth operation is possible with hoisting, elevation, and rotation inverter control. - Compact wireless operation. - Ground-mounted control panel for easy maintenance. 【Jib Length】12.9m Working Radius: 1.22m to 13.0m Lifting Capacity: 19.61kN at 10.58m, 15.39kN at 13.0m 【Jib Length】16m Working Radius: 1.38m to 16.0m Lifting Capacity: 19.61kN at 10.5m, 12.25kN at 16.0m 【Ground Lift Height】Standard 95m, Maximum 125m 【Total Mast Length】Standard 80m, Maximum 110m 【Total Weight】21.7t (Crane body at 80m)

• crane

We develop cranes for the construction of transmission towers that incorporate customer feedback, ensuring safety and ease of use, contributing to the stable supply of electricity nationwide.

■ Smooth operation of lifting, turning, and winching using hydraulic power ■ Can be set up on slopes of 15° by rearranging the outriggers

• crane

Utilizing air, the friction between the transported items and the floor is reduced to one-thousandth of three. A one-ton weight can be moved with a force of 3 kg. *Manual available.

The "Air Caster" is a transport system that uses air for the transportation and positioning of heavy objects. It can move the weight of the transported items in any direction with a thrust of 0.3%, and positioning and direction changes can be easily performed. It is easy for anyone to operate, and requires little maintenance. If you are having trouble with transportation methods, please feel free to consult us. *Koshihara is a company that has a technical partnership with Aerogo as a machinery manufacturer. 【Features of the Air Caster】 ■ Can move heavy objects with light force ■ Direction is not fixed ■ Minimal damage to the floor surface ■ Easy to use and operable by anyone ■ Requires little maintenance ■ Generates little noise and dust, making it suitable for use in clean rooms ■ Suitable for transporting heavy objects across various fields, including construction, civil engineering, and industrial equipment *For more details, please refer to the PDF materials or feel free to contact us.

• Trolley
• palette
• Other conveying machines

We develop cranes for the construction of transmission towers that incorporate customer feedback, ensuring safety and ease of use, contributing to the stable supply of electricity nationwide.

■Significantly reduced jib length change time Thanks to the adoption of a moment limiter, sudden jib length changes on site are easy. ■Achieves the largest working radius in this class at 28m ■Can lift 2 tons at a working radius of 24m Furthermore, smooth operation with inverter control ■Easy operation with the adoption of a joystick-type wireless control system.

• crane

Compact design, suitable for installation in small spaces.

-PROTO MAX- By combining advanced water jet software with a pump pressure of 30,000 psi, the most efficient water jet cutting tool in its size has been realized. Compact size of 1004mm x 1054mm It can be installed in a space-saving manner, eliminating the hassle of securing installation space. Easy operation with dedicated software Just load CAD data and input the cutting pattern, and then leave the rest to the machine. Cutting space of 304mm x 304mm Can cut almost all materials up to a thickness of 25mm.

• Other machine tools
• Other processing machines
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Easy to maneuver and lightweight! Air casters that can be handled like a cart!

The "Aero Palette" is designed to move loads of up to 40 tons. For unlimited operability, the Aero Palette is particularly popular in situations such as manufacturing and assembly of parts. The Aero Palette can work alongside forklifts, cranes, and conveyors at a low cost, or serve as an alternative means of transportation. Optional handles, throttle controls, and wheels for use when unloaded are available. It is much easier to maneuver compared to hand pallets and can be moved lightly. Only one air hose is required, making hose management easy. 【Features】 ■ Can be handled like a cart ■ Very easy to maneuver ■ Can be moved lightly ■ Size can be specified ■ Easy hose management *For more details, please refer to the PDF document or feel free to contact us.

• Trolley
• palette
• Other conveying machines

Capable of transporting heavy loads of up to approximately 200 tons! Can accommodate various sizes of transported items!

The "Air Caster Load Module" provides a new means of transport for moving packages of various sizes, shapes, and weights. Also known as machine skates, air skates, or air dollies, this versatile heavy-load transport product can be placed under items of various load shapes. It consists of four air caster load modules, one console box (air distributor), and four connecting air hoses. One load module can transport weights of up to approximately 50 tons. The load modules come in fixed mount and slide mount types, and various combinations of materials can be selected, including standard neoprene and highly durable urethane types. We will make suggestions considering your usage environment and the items to be transported, so please feel free to contact us. 【Features】 ■ Capable of transporting weights of up to approximately 200 tons (when using four modules) ■ Can be set according to the size of the transported items ■ Compatible with various sizes of transported items ■ Various types can be selected according to the usage environment *For more details, please refer to the PDF materials or feel free to contact us.

• Trolley
• palette
• Other conveying machines

A new type of long-span construction elevator from Koshihara has arrived!

The new low-landing type "KRD-980LF" rotor deck is an elevator for long-span construction work. In narrow job sites such as urban areas, it eliminates the landing stage, allowing installation within the space of the elevator body (stage guard is required), and achieves shared use of guide rails with the conventional KRD series. From this time, the inclination detection device has been completely renewed to a gyro type, enhancing accuracy and safety. This product comes with a standard specification of a plated finish, reducing painting costs during maintenance. 【Features】 ■ Achieves shared use of guide rails with the KRD series ■ Realizes a landing height of 300mm ■ Low vibration and low noise ■ An elevator with a high demand for a load capacity of 980kg ■ Effective width of the carrier is 983mm, making board loading easy ■ The outer width of the carrier is 1080mm, allowing installation on 900mm scaffolding *For more details, please refer to the PDF document or feel free to contact us.

• Other conveying machines

[To the owners of parking lots and parking lot construction companies] "I'm worried about the possibility of colliding with pedestrians when exiting the parking lot..." Among vehicle entrances to parking lots, stores, residences, and factories, those facing sidewalks or roadways are particularly prone to dangerous incidents such as collisions with pedestrians or between vehicles. To alleviate such concerns, Hotron proposes a [Vehicle Exit Warning Sensor] that detects vehicle departures at various sites and alerts the surroundings with LED lights and buzzers. The system consists of a simple configuration of "Sensor" + "Controller" + "Switching Power Supply (24V)" + "LED Rotating Light." *When using the exit warning system, we kindly ask customers to arrange for the switching power supply (24V), LED rotating light, control panel, circuit breaker, etc. Since it can be retrofitted, it can also be used for existing parking lot entrances. [Contents Included] ○ Vehicle Exit Warning System Configuration ○ Comparison Table of Exit Warning Sensors ○ Four Modes ○ Wide Range of Applications ○ Customer Feedback ○ Appearance Diagram / Specifications ◎ For more details, please contact us or download the catalog.

Automate pressure control and use it as a pressure/back pressure regulator! The Auto Pressure Controller "SLA/SLAMf Series" is equipped with a wealth of options and features. By combining the SLA/SLAMf Series with mass flow controllers and meters, you can achieve consistency in control (process) with the advantages of a single platform. The SLA/SLAMf Series uses a primary flow calibration system that is traceable to international standards, characterized by high precision, long-term stability of the zero point, and excellent reproducibility based on our superior measurement systems and methods. Applications: ■ Thin film processes ■ Catalyst research and pilot processes in chemical and petrochemical industries ■ Laboratory and analytical systems ■ Fuel cell technology ■ Life sciences bioreactors

In recent times, there has been a growing interest in infection control measures and facility hygiene management. Our company offers non-contact sensor products that are recommended for commercial facilities, food factories, and nursing and caregiving facilities. 【Sensors for Automatic Doors】 ● Light Touch Sensor HA-T401 … When you wave your hand in front of the automatic door, the sensor detects the movement and opens or closes the door. It is recommended for making doors that use touch switches non-contact. ● Hand Wave Sensor PF-R5, PF-U2, DHS-1 … Opens and closes the automatic door by waving your hand in front of the sensor. ● Foot Switch PF-01S/01D/03S/05 … Opens and closes the automatic door by placing your foot in the opening. 【Access Control System】 ● Face Recognition + Unmanned Temperature Measurement DS Series … Capable of detecting mask-wearing and measuring body temperature simultaneously with face recognition. ● Automatic Disinfectant Spray Dispenser PHW-03B … Automatically sprays disinfectant when you wave your hand in front of the sensor. 【Nursing and Care Sensors】 ● Infrared Bed Exit Sensor "Just Place It Pole-kun" … This bed exit sensor is installed next to the bed and alerts via nurse call when the subject enters the detection range. ◎ For more details, please download the catalog or contact us.

A world where miniaturization and high performance are advancing daily. Mobile phones now have features that were unimaginable just a few years ago. The realization of such high performance is thanks to thin film technology, which is utilized in a wide range of applications as follows: 【Applications of Thin Film Technology】 - Microelectronics - Anti-reflective coatings for glass - Antibacterial metal coatings for medical devices - Flexible solar cells Thin film technology is defined as "the process of creating, coating, and processing thin film materials on a substrate surface." We are currently publishing basic knowledge materials on glass coatings for the glass industry! ⚫ Glass Coatings ⚫ What is Low-E Glass? ⚫ Laminating and Materials of Low-E Coatings ⚫ Application Requirements ⚫ What is Low-E Coating Technology? ⚫ Glass Coating Market Please take a moment to read it. https://mono.ipros.com/news/detail/129167/

Thank you very much for your continued support. At STJ Group (Santec Telecom Japan Co., Ltd. and STJ Rentech Co., Ltd.), we regret to inform you that our year-end and New Year holiday schedule will be as follows. We apologize for any inconvenience this may cause and appreciate your understanding. ■ Year-End and New Year Holiday Schedule From Tuesday, December 30, 2025, to Sunday, January 4, 2026 * Last acceptance date for the year: Thursday, December 25 * Last shipping date for the year: Friday, December 26 * Monday, December 29, is the last business day of the year. Inquiries and consultations will be accepted. ■ Business Resumption Date Starting Monday, January 5, 2026 During this period, we anticipate significant delays in sales and other responses due to manufacturer holidays. We apologize for any inconvenience and appreciate your understanding. Regarding inquiries made via the web, we will respond after Monday, January 5, 2026. Thank you for your understanding in advance. Our website will still be available for use during the holiday period. We look forward to your continued patronage next year.