Copper Busbar Heat Shrink Tunnel Oven

The Copper Busbar Heat Shrink Tunnel Oven is an industrial heating and baking equipment specially designed for continuous heat shrinking of insulation sleeves on electrical copper busbars and power busbars.Through mesh belt or chain conveyor transmission, copper busbars with heat shrink tubes installed are transported at a uniform speed through a high-temperature hot air circulation zone or infrared heating zone. The equipment enables efficient, uniform shrinkage and tight wrapping of the insulation layer.

Equipment Applications

This equipment is widely used in manufacturing fields requiring high-standard electrical insulation and busbar protection.

High and Low Voltage Distribution Cabinets

Used for:

Heat shrinking insulation sleeves on main busbars

Branch copper busbars inside switchgear cabinets

Electrical insulation protection of power distribution systems

New Energy Vehicle Industry

Used for insulation protection of:

Battery pack cell connecting busbars

Electrical control and drive system copper busbars

Transformers and Reactors

Used for:

Outlet copper busbars

Electrical transformer connection components

Arc-resistant insulation protection

Rail Transit and Energy Storage Systems

Used for:

Locomotive power distribution systems

Large energy storage container internal power transmission busbars

Automated busbar processing production lines

Applicable Standards

The equipment manufacturing and processed products generally need to comply with the following standards:

GB/T 14048.1 / IEC 60947-1

Low-voltage switchgear and controlgear — General requirements

GB 5226.1

Safety of machinery — Electrical equipment of machines — General technical conditions

GB/T 2423

Environmental testing standards for electrical and electronic products

Used to ensure the heat resistance and aging resistance performance of processed copper busbars after heat shrinking.

UL94 V-0 Flame Retardant Grade

Used together with heat shrink tube standards to ensure that the heating process and finished products meet flame-retardant safety requirements.

Equipment Features

Uniform Heating Without Bubbles

Adopts:

Far-infrared heating technology

Strong hot air circulation system

Multi-angle heat-reflective inner chamber design

It effectively eliminates common problems caused by manual heat gun operation, such as:

Surface bubbles

Pressure marks

Uneven shrinkage

Local overheating

The final insulation layer has better appearance and consistency.

Precise Intelligent Temperature Control

Uses multi-zone independent microcomputer PID temperature control technology.

Temperature control accuracy can reach approximately ±1°C.

The heating temperature can be flexibly adjusted according to different copper busbar requirements:

Low-voltage copper busbars: usually around 120°C

High-voltage copper busbars: usually around 170°C

Variable-Speed Conveyor for Efficient Production

Uses:

Frequency-controlled mesh belt conveyor

Chain conveyor system

The equipment supports 24-hour continuous production operation, significantly improving mass production efficiency and finished product yield.

Energy-Saving and Safety Design

The furnace body adopts:

Double-layer thermal insulation structure

High-performance insulation materials

The inlet and outlet are equipped with adjustable lifting shielding doors to reduce heat loss and protect the working environment.

FAQ

Q1: What is the common heating temperature of a copper busbar heat shrink tunnel oven?

A: The adjustable temperature range is generally from room temperature up to 250°C.

In actual production:

Standard low-voltage copper busbar heat shrinking usually uses around 120°C

High-voltage copper busbars with thicker insulation sleeves usually require around 170°C

The actual setting depends on the heat shrink tube material and thickness.

Q2: Why is a tunnel oven better than traditional manual heat guns for heat shrinking?

A: Manual heat gun operation depends heavily on operator skill and often causes:

Uneven heating

Surface bubbles

Local burning

Incomplete shrinkage

Visible pressure marks

The tunnel oven provides a constant-temperature heating environment with full-area hot air circulation, ensuring:

Uniform shrinkage

Better appearance

Higher insulation consistency

Several times higher production efficiency

Q3: How does the equipment handle copper busbars of different sizes and shapes?

A: The tunnel oven is designed with adjustable inlet and outlet heights, equipped with sliding lifting doors.

The conveyor system usually adopts:

Wide stainless steel mesh belts

PTFE (Teflon) high-temperature mesh belts

It can accommodate:

Bent copper busbars

Long strip busbars

Irregularly shaped connection components

while ensuring stable placement and smooth transportation.

Q4: Can the conveyor speed be adjusted? How does it work with the heating process?

A: Yes.

The equipment is equipped with a frequency converter for stepless speed adjustment.

The conveyor speed can be adjusted according to:

Copper busbar thickness

Heat shrink tube material

Heating temperature

By controlling the residence time inside the furnace, the equipment achieves the ideal shrinkage tightness and insulation performance.

Q5: Does this equipment consume a lot of electricity? What energy-saving designs are included?

A: Although the heating power is usually between several kilowatts and dozens of kilowatts, the equipment is designed with energy efficiency in mind.

Energy-saving features include:

Double-layer insulated furnace structure

High-density thermal insulation cotton filling

Multi-angle heat reflection design inside the chamber

Automatic intermittent heating operation after reaching the set temperature

These designs significantly reduce heat loss, and the actual energy consumption is much lower than the rated heating power.