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Product Introduction:
The semi-automatic pneumatic spot welding machine is mainly equipped with a dual head intermediate frequency welding system, mainly serving the "one large and two small" three-layer combination welding of 2+2+2mm carbon steel saw blades. There are two spot welding heads on the top and bottom, and the electrode spacing of the machine head can be adjusted left and right to meet the welding positioning of different blade diameters; The design of the rotary worktable enables the workpiece to automatically rotate 90 ° after the first welding, and the lifting and pressing actions of the machine head are closely linked. One click start can complete all welding points. The whole machine emphasizes simplicity and practicality, with a compact internal structure layout, a smooth and innovative external design, and a clear and intuitive operation panel; The core electrical and pneumatic components are configured with high reliability to ensure performance does not degrade under long-term heavy load conditions, while the safety light curtain and emergency stop device ensure the safety of personnel and equipment. In terms of energy conservation, the medium frequency power supply has high conversion efficiency, low heat loss, and a strategy of cooperating with workpiece rotation instead of welding machine movement, greatly reducing mechanical wear and energy waste. It is an efficient welding tool in the context of green manufacturing.
Features:
① The distance between the electrodes can be adjusted within a wide range, suitable for various combinations of saw blades with different outer diameters, and can also be used for other circular sheet-like workpieces.
② Not only suitable for carbon steel, but also for welding materials such as stainless steel, galvanized sheet, copper alloy, etc., simply switch the corresponding parameters.
③ The welding thickness combination is not limited to 2+2+2, and supports the free combination of single-layer thicknesses of 1.5-4mm, flexibly responding to different processes.
④ Automatic loading and unloading devices can be optionally selected or connected to the assembly line to achieve fully automated production without the need to replace the host.
⑤ 100 pieces of continuous welding in the same batch, with a maximum difference of 5% in the tensile strength of the welding points, meeting the consistency requirements of automotive component levels.
Detailed Images:

Symmetrical double heads: By using symmetrically arranged upper and lower welding heads to simultaneously press down, two points can be welded at once, thereby eliminating offset and virtual welding caused by unilateral force application, and the spacing can be adjusted; Then, by rotating and welding at a 90 ° angle, the four welding points are evenly spaced, and with the continuous stability of pressure and current, an efficient and reliable welding effect is ultimately achieved.

Workpiece rotation platform: Due to the rotating platform carrying the workpiece and automatically rotating 90 ° according to the program, the welding points during secondary welding can accurately correspond to the initial position, ensuring that the four welding points are evenly spaced; The accuracy of simultaneous indexing and positioning, as well as the smoothness of the action, have jointly promoted a significant improvement in welding consistency.

Dual cylinders: The upper and lower heads are independently driven by dual cylinders, with adjustable pressure settings to accommodate varying thickness combinations. The downward pressing is smooth and buffered to prevent impact damage to the workpiece, while the pneumatic response is sensitive, ensuring a compact and efficient welding cycle.

Waterway components: All waterway components undergo surface treatment to prevent rusting, and waterway drainage is independently discharged to the water tank. Based on the outflow situation, blockages in the waterway can be observed and eliminated.
Welding Test:


Welding Workpiece: The spot welder is also widely applied in various fields such as automotive components (e.g., nuts, housings, stud welding, and spot welding), home appliance manufacturing (compressor housings, electrical accessories), hardware sheet metal (iron wire products, galvanized plate assemblies), and aerospace precision parts, serving as a versatile, cost-effective industrial platform suitable for thin sheet stacking and multi-point symmetrical welding of various carbon steels, stainless steels, and galvanized plates.
General Structures:


Technical Parameters:
| Items Models | DN(B)-100 | DN(B)-160 | DN(B)-200 | DN(B)-250 |
| Rated power (KVA) | 100 | 160 | 200 | 250 |
| Power input(V) | 3φAC 380V | 3φAC 380V | 3φAC 380V | 3φAC 380V |
| Max. short circuit current (KA) | 30 | 35 | 40 | 45 |
| Duty cycle(%) | 50 | 50 | 50 | 50 |
| Max. force(N) | 6000 | 6000 | 10000 | 15000 |
| Electrode length( MM) | 450 | 450 | 450 | 500 |
| Working stroke( MM) | 80 | 80 | 80 | 80 |
| Cooling consumption(L/min) | 20 | 20 | 20 | 20 |
| Max. welding capacity(MM) | 3.0+3.0 | 4.0+4.0 | 5.0+5.0 | 6.0+6.0 |
Scene Images:


Related Products:
Rocker Arm Spot Welding Machine
Adopting a single arm multi joint rocker arm structure and a horizontal platform type lower electrode combination, specially designed for thin plate welding, the front of the workpiece has no indentation, the back is smooth and deformation free, and there is no need to polish after welding; Its flexible rocker arm can easily penetrate into the interior of the box, coupled with pneumatic pressurization and microcomputer control, ensuring that the welding points are firm and stable. It is widely used in the processing of metal products with high surface requirements such as cabinets, elevator door panels, kitchenware, and automotive sheet metal.
Fireproof Door Spot Welding Machine
Elevator Door Panels Double Heads Spot Welding Machine
It innovatively features dual electrode heads on the basis of a fixed spot welding machine, completing two welding points in one action. With the help of X/Y-axis moving fixtures and exchange racks, it achieves automated batch welding of elevator door panels. After manual loading and unloading, automatic displacement, pneumatic pressurization, thyristor controlled welding, and cyclic operation are carried out until completion. The whole machine has a compact structure, with a welding capacity of 0.5~1.5mm and an external size of 5250 × 3775 × 2067mm. It runs stably, efficiently and energy-saving, making it an ideal equipment for door panel manufacturing.
Galvanized Sheet Door Multi Head Welding Machine
This is an 11 head multi head welding machine designed specifically for welding galvanized sheet doors, using projection welding technology. The equipment supports manual loading and unloading of materials and automatic completion of welding operations. 11 welding heads can work synchronously, greatly improving production efficiency, ensuring firm and beautiful welding points, and effectively maintaining the anti-corrosion performance of the galvanized layer. It is an ideal choice for mass production in the door industry.
FAQ:
1. When can you arrange shippment?
The shippment is 15 days after getting deopsit, but customized machines should be more than 25 days.

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