ジュピターコーポレーション List of Products and Services

When developing electric vehicle (EV) systems, designers or OEM manufacturers must decide whether to "design and manufacture the necessary components in-house or purchase them directly from external suppliers." To make the appropriate selection of each component within the system, various factors must be considered beyond the initial purchase price, including total installation costs, design capabilities, manufacturing capabilities, supply chain constraints, and quality standards. This article examines the pros and cons of in-house production versus purchased components and provides insights to help you make the most suitable decision for your EV needs. Table of Contents Factor 1: Total Installation Costs Factor 2: Design Capabilities Factor 3: Manufacturing Capabilities Factor 4: Supply Chain Constraints Factor 5: Quality Standards How Can The Lee Company Help? You can find more detailed information at the following link: "Should You Make or Buy Your EV Components?"

The American precision fluid control equipment manufacturer "The Lee Company" proposes a completely new solution for air contamination (air entrainment) in hydraulic equipment. The compact size, excellent performance, and ease of installation of the new vent valve make it ideal for large-scale applications in automotive, off-road vehicles, and other industrial hydraulic systems. The insert mounting method, which Lee proudly offers, allows for easy and reliable fixation and sealing without the need for machining or O-rings. For more details, please download the catalog or feel free to contact us.

The Lee Company, a precision fluid control equipment manufacturer in the United States, accurately removes air from oil using its unique technology. <Benefits of Implementation> - Improved response and realization of smooth shifting - Reduced losses due to volumetric expansion of the oil line - Cost-effective air removal made possible by unique calibrated orifice technology For more details, please download the catalog or contact us.

This is a high-precision orifice produced using Lee's unique manufacturing method. Since the tolerance management is defined by the actual flow rate rather than the hole diameter, we supply accurate flow values that meet your required flow rate and within strict tolerances. It is a compact, lightweight, and easy-to-install orifice with high reliability. - Since flow management is conducted in one direction only, we offer a forward type where the flow direction and installation direction are the same, and a reverse type where they are opposite. - The all-stainless steel construction ensures robustness and high durability. - We can also provide very small orifices, such as 0.5mm, making them suitable for purposes like air bleeding.

It is optimal for spring-operated, hydraulic release brake mechanisms and load sensing control. Its compact size makes it easy to integrate into load sensing compensators. Each valve is designed for reliable operation and undergoes 100% flow and leakage testing to maintain consistent performance over the long term. The shuttle valve does not require special designs such as threaded machining of the manifold or the use of O-rings for sealing. The valve is inserted into a hole drilled in the manifold block, and by driving the expansion pin pre-inserted into the valve into the valve body, it is sealed and adheres to the manifold. This mounting method has a proven track record in aircraft and automobiles. It is made entirely of stainless steel, featuring low leakage and a maximum operating pressure of 28 MPa.

The plastic-mounted safety screen is a "last chance filter (safety screen)" designed to protect critical equipment from fluid contamination. It is assembled by welding stainless steel mesh to the main body through a unique manufacturing process that provides high performance and long life. The screen features a unique bellows shape designed for easy installation onto resin (plastic) through press-fitting, ensuring secure retention. High strength is achieved through unique welding processing technology. Screw processing allows for simple installation without the need for additional components. Available in various sizes, it can flexibly accommodate your design needs. The IMH screen is a so-called "last chance" filter that prevents foreign substances from entering critical fluid control equipment.

The "LEE Beta Plug (Seal Plug)" is a sealing plug that allows for liquid sealing without the need for threaded plugs or sealing agents. It enables reliable automatic or manual insertion, making it less likely to cause cracks in brittle base materials. It is suitable for those who are troubled by issues such as burrs from threading, contamination from wrapping sealing tape, or damage due to improper insertion of plugs. 【Features】 ■ No additional processing such as threading required ■ Elimination of human error due to no torque management needed during plug insertion ■ Reduced risk of burr formation in processed holes ■ Elimination of contamination risks *For more details, please refer to the PDF document or feel free to contact us.

The "LEE Company Beta Plug (Seal Plug)" is an ultra-lightweight sealing plug made of aluminum that allows for liquid sealing without the need for threaded plugs or sealants. It offers reliable automatic or manual insertion, making it less likely to cause cracks in brittle base materials. Utilizing 70 years of expertise used in aviation, it can be applied to automotive parts, hydraulic control components (pumps), machine tools, and more. 【Features】 ■ Capable of mass production ■ Stress is applied to the surface of the counterpart base material, allowing for insertion without distortion ■ Visual management of insertion state through monitoring of the amount of driving and pressure input simplifies the work process ■ Easy installation without the need for threading or other processing ■ Available in various sizes from 5mm to 20mm *For more details, please refer to the PDF document or feel free to contact us.

This product is developed based on aerospace equipment from Lee Company, which has high reliability and a proven track record in aircraft and similar applications. It combines an industrial check valve with a high-precision orifice produced using Lee's unique manufacturing method, featuring a function that arranges the check valve and orifice in "series." In addition to managing what was previously handled by two components with a single unit, installation is also simplified to a single step, reducing installation labor. 【Features】 - Simplification of the manifold by combining hydraulic control components - Improved consistency in system performance due to the ability to achieve accurate flow with this product - 100% inspection of all products before shipment, eliminating the need for re-inspection at your facility.

Compact and lightweight insert-type check valve Maximum operating pressure 40 MPa (400 bar) All stainless steel construction 100% inspection of all products before shipment, etc.

To maintain reliable and consistent performance over the long term, each valve undergoes 100% operational testing. The Lee flow control valve does not require special designs such as threaded machining of the insertion manifold or sealing materials like O-rings for installation. The valve is inserted into a hole drilled in the manifold block, and by driving the expansion pin pre-inserted in the valve into the valve body, it is securely fixed and sealed against the manifold insertion hole. This installation method has a proven track record in aircraft and automobiles. With its compact, lightweight, and easy installation, and 100% inspection before shipment, stable performance and supply are ensured. Made entirely of stainless steel, it has a maximum continuous operating pressure of 28 MPa in the reverse direction. 【Features】 ■ Integrated orifice and check valve ■ Over 17 million units sold since 2008 ■ 80-90% pulsation reduction ■ Excellent durability due to all-stainless steel construction ■ Direct installation onto hoses is possible *For more details, please refer to the PDF document or feel free to contact us.

【Function Lineup】 Check Valve (Non-return Valve) · Relief Valve (Safety Valve) · Orifice (Precision Restriction) · Screen (Strainer/Filter) · Solenoid Valve · Other Special Valves 【Product Points】 As long as the hole requirements are met, it can be easily installed anywhere! It can be used in various parts depending on your ideas, including metal and plastic manifolds, urethane tubes, fittings, lure fittings, housing walls, sheet materials, and inside bolts. *We will explain the case studies of the introduction effects! *A dedicated sales engineer will guide you.