Manual Download

The YJXB-3 model die and mold repair machine (cold welding machine) has been a top-selling cold welding machine model for the company over the past decade.

Especially suitable for quick repairs of various plastic mold flashings, with high precision, minimal stock, and easy post-repair finishing.

Also suitable for welding shims for precision metal molds.

Mechanical Repair Case

Yi Jing Cold Welding Machine, Tool and Mold Repair Machine, Casting Defect Repair Machine, High-Energy Precision Welding Machine.

Applicable to: Non-destructive repair of various mechanical components (shafts, crankshafts, gears, cylinder blocks, housing, casings, guides, screws, various rollers, fluted rollers and printing press rollers, cylinder heads, hubs, impellers, etc.).

Advantages: High precision, minimal tolerance, low thermal stress, does not affect the parent workpiece's precision, hardness, or dimensions. Enables on-site repair without disassembly.

Standard Random Tool Box

Copper Alloy Welding Tip

2. Plain Glasses

3. Steel Strip Shears

4. Power Cord

Foot Switch

6. Negative Pole Connection Wire

7. Positive Terminal Wires

8. Precision Welding Gun

9. Spare Parts

One, Advantages of Cold Welding Machines:

1. High welding strength: The repaired area can be machined, filed, etc.

2. High repair accuracy: Patched with thin materials, maintains the original datum plane without loss, and has minimal excess welding material, making it easy for post-shaping.

3. Wide Application Range: Suitable for repairing parts of various metal materials, excluding materials with extremely high resistivity like copper and aluminum.

4. Minimal base material damage: Small hotspot, will not cause base material to soften and deform.

5. Easy electrical connection: Equipped with a strong magnetic connector, electrical connections can be easily made for workpieces of any size.

Section II: Unique Advantages of the YJXB-3 Model:

The new repair machine offers greater power, a smaller size, and lighter weight compared to the older model (the main unit weighs only 8 Kg).

2. Microcomputer control for intelligent adaptation to different thicknesses of filler materials, various workpieces, and different weld head sizes.

Power distribution is more reasonable, with digital display for clearer and more convenient operation.

3. Switching power supply technology ensures stable high-power output even when voltage fluctuates within ±20% of 220V, guaranteeing welding quality.

4. Dedicated precision welding mode and precision welding nozzle for enhanced support of delicate operations

5. Suitable accessories can provide solutions for single-sided bipolar welding in the hardware industry.

III. Typical Applications:

Mold Industry: Repair services for various injection molds, extrusion molds, rubber molds, die casting molds, metal molds, etc.

2. Machinery Industry: Various machinery components, such as guides, shafts, crankshafts, hydraulic rods, etc., for repair

3. Casting Industry: Sand holes, gas pores, machining tolerances, etc., for various castings (cast steel, cast iron, stainless steel, etc.)

4. Printing & Textile Industry: roller repairs, including anilox rollers, mill rolls, mirror rolls, printing press cylinders, etc.

5. Hardware Industry: Pad Welding

Special Note: Please differentiate between the maximum single-layer thickness and the maximum single-point thickness, as well as the maximum welding thickness and the reliable welding thickness.

1. Single-layer vs. Single-point: The principle of cold-weld repair is similar to resistance welding. When there is only one welding point, as there's no power分流 around it, the output power is concentrated, allowing for thicker welding. However, for general repair work, it's necessary to repair a surface. When repairing a surface, each welding point (except for one) has other welding points that分流 the output power, thereby reducing the thickness that can be reliably welded. Generally, when judging the power of a repair machine, it's recommended to use the reliable welding thickness of a single layer as a standard. All the data on our company's manuals are based on the single-layer reliable welding thickness.

2. Maximum Welding Thickness & Reliable Welding Thickness Limit: Simply welding material on does not mean it is securely attached. As a repair machine, the welding material must be fully melted with the workpiece (i.e., reliable welding), otherwise, the patch material is prone to falling off during later processing and use. The data on our manual is for single-layer reliable welding.

Some materials (such as stainless steel) have special properties, and their maximum reliable welding thickness may exceed that of ordinary steel. Please conduct repeated tests for specific use or consult with our technical staff.