Mold Laser Welding Machine With Flexible Crane Arm And Universal Seat

In modern manufacturing, molds are the core tools that ensure product quality and production efficiency.

However, during long-term use, molds often suffer from wear, cracks, holes, or edge damage. Without timely repair, this may lead to production interruptions or increased scrapping costs.

The Mold Laser Welding Machine, with its precise and efficient welding capabilities, provides an ideal solution for mold maintenance and extending service life.

Our mold laser welding machine is especially suitable for large molds, small molds, and molds with complex internal structures. Its unique boom design combined with a sliding rail system and universal joint makes operation more flexible, allowing easy adjustment of welding positions. High-quality welding can be performed without frequent disassembly of the mold. This design not only improves repair efficiency but also ensures precision and consistency throughout the welding process, delivering significant production value to various manufacturing enterprises.

Core Advantages of Our Mold Repair Laser Welding Machine

Flexible Operation

Unlike traditional desktop welders, this equipment adopts a specially designed boom structure. The boom integrates a sliding rail system for smooth position adjustments, while the universal joint at the connection point allows the operator to freely change the welding angle. This design makes it easy to repair large molds and deep, complex internal structures that are typically difficult to handle with conventional equipment.

Precision Welding

Our system ensures micron-level accuracy while minimizing the heat-affected zone (HAZ). It effectively repairs micro-pores, fine cracks, worn edges, and fragile mold surfaces without causing deformation or compromising the mold’s original properties.

Higher Efficiency

With its ergonomic boom design, there is no need for frequent mold disassembly or heavy lifting during repairs. By enabling direct in-place welding, it significantly reduces downtime and accelerates repair speed, helping manufacturers keep production lines running smoothly.

Superior to Traditional Desktop Welders

Compared with standard desktop systems, our boom-equipped laser welder offers greater flexibility, convenience, and productivity. Traditional systems often struggle with bulky molds or complex geometries, while our solution provides faster, easier, and more reliable welding for a wide variety of mold repair tasks.

A detailed demonstration of the boom and universal joint of our mold laser welding machine can be seen in the video below.

Application Scenarios

Industrial Molds

Our mold repair laser welding machine is widely used in the mold manufacturing industry, including:

Injection molds – Precise repair of gate areas, worn edges, and fine cracks.

Die-casting molds – Efficient repair of high-strength alloy molds without deformation.

Stamping molds – Accurate repair of repeatedly worn edges and surfaces.

Rubber molds and copper alloy molds – Stable welding for materials that are traditionally difficult to process.

Casting Industry

During casting, defects such as porosity, shrinkage cavities, and cracks are common. Our laser welding machine can repair them quickly and precisely, while minimizing heat input to maintain the mold’s original strength and dimensional accuracy.

Other Complex Components

Beyond molds, the system is also suitable for repairing and modifying various mechanical parts:

Shafts – Accurate repair of worn bearing surfaces.

Gears – Repair of broken or worn teeth without affecting gear accuracy.

Precision small parts – Micro-welding of delicate components without deformation.

Material Compatibility

Our mold repair laser welding machine is designed to handle a wide range of metals and alloys, making it highly versatile across different industries.

Same-Material Welding

Steel – Strong and durable joints for industrial molds and mechanical parts.

Aluminum – Precision welding with minimal heat distortion.

Copper – Stable, high-quality repair for conductive components.

Stainless steel – Clean and reliable welds without compromising corrosion resistance.

Dissimilar-Material Welding

Copper-to-aluminum joints for electronic and automotive components.

Copper-to-steel combinations for specialized industrial parts.

This functionality ensures flexibility in handling complex repair tasks involving multi-metal structures.

High-Reflectivity and Heat-Sensitive Materials

With its advanced laser system, the machine is also suitable for materials that are traditionally difficult to weld, such as highly reflective alloys or heat-sensitive parts. This minimizes the risk of cracking, porosity, or deformation, ensuring both strength and accuracy.

Usage Tips & Safety Operation

To ensure efficient and safe mold repair, the following operational recommendations will help you maximize the performance of this equipment:

Adjusting the Boom and Universal Joint

Before welding, smoothly move the boom along the sliding rail to the target position and flexibly adjust the angle via the universal joint. This allows quick targeting of weld points and solves the operational challenges of large or complex molds.

Material Preparation Before Welding

Ensure the workpiece surface is clean, free of oil, and free of impurities. Light grinding can be performed if necessary. This reduces the risk of pores or cracks during welding and improves both strength and aesthetics of the weld.

Gas Protection & Welding Sequence

Choose suitable shielding gases (such as argon) depending on the material to effectively prevent oxidation and improve welding quality. The recommended sequence is from outside to inside, and from shallow to deep, to avoid deformation caused by localized overheating.

Regular Maintenance & Care

Keep optical components clean, regularly check the cooling system and sliding rail operation, and replace consumables promptly. This not only extends the machine’s lifespan but also ensures consistent, stable welding performance.

Customizable Solutions

Our mold repair laser welding machine supports flexible customization options:

Size & Material Customization

Tailored welding solutions according to mold size, shape, and material (steel, aluminum, copper, stainless steel, etc.), ensuring both precision and efficiency.

Production Line Integration

We offer seamless integration designs that allow the equipment to directly fit into your existing production line, improving overall output while reducing handling and downtime.

Multi-Function Extensions

Optional multi-head welding systems, dual stations, and rotational assist devices enable simultaneous repair of multiple points and make it easy to weld circular or complex geometries.

Through these flexible extensions, the machine not only meets current repair needs but also adapts to future production upgrades.

Ready to Make Your Mold Repair More Efficient and Precise?

Contact our engineering team today to request a free welding test and customized solution.See how our Mold Repair Laser Welding Machine can extend mold lifespan, reduce maintenance costs, and boost production efficiency.