Aluminium Terminal

Aluminum terminals are electrical connection components made of aluminum. They are mainly used for electrical connection and signal transmission. They are widely used in industrial electronics, transportation, aerospace, medical equipment, automotive industry, telecommunications, network communications and other fields.

As a professional aluminum supplier, Mastar can provide various types of terminals such as crimped aluminum terminals, tubular aluminum terminals, fork aluminum terminals and copper-aluminum composite terminals. It also supports customization to meet your various personalized needs.

Crimp type aluminum terminal

Material: The terminal is made of aluminum alloy tube with a purity of not less than 99.5% (such as 1050, 1060 alloy) to ensure the balance of conductivity and mechanical properties.

Specification: DIN 48201

Surface treatment: Common oxidation treatment, tinning or silver plating to enhance contact performance and corrosion resistance, neutral grease is added to the hole to prevent aluminum oxidation.

Size range: According to application needs, it can be designed to adapt to different wire specifications.

Temperature resistance: Generally, it can be used for a long time in an environment of -50°C to 150°C.

Crimping force standard: It must meet specific crimping force requirements to ensure the stability of electrical connections.

Application: Transformer wiring, switch cabinet terminals

Insulation: Pre-coated insulation layer can be selected

Common types: ring, fork, needle

Bolt type aluminum terminal blocks

Material: The product is made of high-strength aluminum alloy. After forging and heat treatment, the tensile strength can reach 260MPa. It is resistant to high temperature and impact, not prone to high current heating or deformation, and safe and reliable.

Design: It has bolt holes for torque application to achieve precise and safe connection.

Application: It is suitable for a wide range of electrical applications, including power distribution, control panels and heavy machinery wiring. Applicable wires include: insulated wires, aluminum stranded wires, and aluminum alloy stranded wires.

Specifications: GB/T 2314-2008, GB/T 9327-2008, GB/T 2423.18-2012, IEC 61238-1-2003

Common Sizes

The following are common sizes for screw terminals:

Features

• Bolt holes for torque application: Allow controlled torque to be applied to ensure consistent and secure connections.
• High-strength structure: Can withstand high mechanical forces and is durable in harsh environments.
• Corrosion resistance: Usually plated or coated with materials such as tin or nickel to prevent corrosion and ensure long-term reliability.
• Good electrical performance, the product has been tested by a national-level testing agency and has passed rigorous tests such as 1,000 thermal cycles and 6 short-circuit tests.
• The surface plating layer of the product is more than 15 microns, anti-oxidation and anti-corrosion, and has passed the harsh level 2 salt spray test without any corrosion on the surface.
• Foolproof installation, no specific installation tools are required, just use a wrench or a sleeve wrench to break the torque bolt.
• The torque bolt is set with a specific shear torque. When the preset torque is reached, the hexagonal head of the bolt automatically breaks, so the crimping force of the bolt on the wire is constant and sufficient to firmly crimp the wire, which can ensure that the product does not damage the wire.
• Beautiful appearance and high dimensional accuracy, the product is processed by CNC machine tools, and has higher precision and more beautiful appearance than other mechanical processing types.
• Oil-blocking design, conductive paste is placed inside the connecting tube, which effectively reduces contact resistance, resists oxidation and corrosion, and prolongs service life.
• The spiked thread structure enables the wire clamp slot to pierce the oxide layer on the surface of the wire and ensures that the gripping force is >40 times the cross-sectional area of the wire.

Applicable environmental

• Operating Temperature Range: Able to operate in a wide temperature range of -40°C to +105°C, suitable for use in various climate conditions.
• UV and Weather Resistance: The lug material and protective coating ensure resistance to UV radiation and weather-related effects, suitable for outdoor use.
• Chemical Resistance: Resistant to common environmental chemicals, maintaining integrity in polluted or industrial areas.
• Moisture Resistance: Designed to perform well in high humidity conditions, ensuring reliable performance in wet environments.

Installation process

Wire Preparation: Strip the conductor insulation to the appropriate length.

Lug Insertion: Insert the conductor into the lug, making sure it is fully seated.

Bolt Tightening: Use a torque wrench to tighten the bolts to the torque value specified by the manufacturer.

Verification: Inspect the connection to confirm it is secure and the conductor is properly crimped into the lug.

Copper and aluminum terminal

Copper-aluminum brazing terminal block is an electrical connector that connects copper and aluminum conductors through the copper-aluminum brazing process. It has low resistance, high mechanical strength and excellent energy saving effect.

Common size

Feature

• Copper-aluminum brazing process: The copper-aluminum brazing process is used to ensure a copper-aluminum overlap transition structure and a stable and reliable connection.
• Large contact surface: The copper-aluminum contact surface is large, providing excellent electrical contact performance.
• Low resistance, small temperature rise: Tinned copper end surface effectively reduces contact resistance, reduces temperature rise, and has significant energy saving effect.
• High mechanical strength: It has high mechanical strength to avoid the risk of welding surface fracture and enhance durability.
• Ideal replacement product: an ideal substitute for traditional friction welding wire terminals.
• Scope of application: Suitable for electrical connections between cables and equipment plate connectors.
• Not applicable to columnar connectors: Not suitable for electrical connections between cables and device columnar connectors unless double-sided soldering is used (model changed to QS)

Other common copper and aluminum terminal types

Pre-insulated aluminum terminals

Pre-insulated aluminum terminals are connectors that have an insulation layer pre-added to the aluminum terminals to improve safety and prevent short circuits or electrical contact.

Application

Control cabinets, transformers, electrical appliances, and wiring harness manufacturing.

Features

High-quality copper and aluminum materials are used to ensure good conductivity.

The insulating sheath is usually made of high-strength, weather-resistant engineering plastics and fixed to the terminal by injection molding.

The narrow palm design is particularly suitable for equipment with narrow installation space, improving the convenience of installation.

The function of preventing wire bifurcation improves insulation safety and makes it easier to insert the wire into the terminal.

The insulating sheath is clearly marked with die specifications, crimping sequence and number of times, conductor cross-sectional area, and stripping length to ensure correct installation and use.

The conductor cross-sectional area can be identified by the color code of the elastomer rubber cap for easy identification and operation.

Common types of display

Why choose Mastar as your aluminum terminal supplier?

Free samples: Free samples are provided to allow customers to test before placing an order to ensure that the performance matches customer needs.

High-quality materials: Mastar's aluminum terminals are made of high-purity aluminum alloy materials, such as 1050, 1060/1070, 1350, etc., which have good conductivity and corrosion resistance, ensuring that the products are stable and reliable in various applications.

Customized services: Mastar provides customized services, adjusting the size, shape, surface treatment, etc. of aluminum terminals according to the specific needs of customers to meet the special requirements of different fields.

Strict quality control: Mastar strictly follows international quality standards, and its products undergo multiple tests and quality inspections to ensure that each aluminum terminal meets high standards and reduces the failure rate during customer use.

Safety assurance: Mastar's aluminum terminals pay special attention to safety, using pre-insulated aluminum terminals or other necessary protective measures to ensure that there is no short circuit or electrical accident during use.

Competitive price: As return customers and large-volume customers can enjoy discounts, Mastar can make your price competitive.

Wide range of applications: Mastar's aluminum terminals are widely used in multiple industries such as electricity, electronics, communications, automobiles, and energy, and can meet the connection needs in various environments and scenarios.

Sustainable development: Mastar pays attention to environmental protection. Its aluminum terminal products meet international environmental standards and use recyclable materials to help customers achieve sustainable development goals.