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Product Introduction:
The semi-automatic pneumatic spot welding machine is designed specifically for the three-layer "sandwich" structure of 2+2+2mm carbon steel saw blades. The large saw blade in the middle and the two small saw blades on the upper and lower sides are symmetrically spot welded through four welding heads (two on each side). The distance between the machine head electrodes on the left and right sides can be adjusted to ensure accurate fitting of the welding point position; The equipment comes with a rotating worktable. After manual loading and start-up, the welding machine head automatically presses down for welding. After completion, it rises and the rotating worktable rotates 90 °. The machine head presses down again to complete the remaining welding points, forming a complete cycle. The whole machine adheres to the concept of compact design, occupies small space, has a beautiful appearance and conforms to ergonomics. It has fast aerodynamic response during operation, stable intermediate frequency output, less welding spatter, firm fusion core, and multiple safety interlocks to ensure the safety of operators. At the same time, it achieves high output welding effect with low power consumption. Its welding machine fixing and workpiece rotating working mode greatly simplifies fixture design, making it a practical choice for small and medium-sized saw blade manufacturing enterprises.
Features:
① Equipped with a color touch screen, welding parameters (current, time, pressure, rotation angle) can be digitally set and stored in multiple sets of formulas, making it easy to call.
② The workpiece positioning fixture adopts a contour card slot, which automatically aligns when placed, without the need for repeated calibration, and beginners can quickly get started.
③ The start button adopts a double key linkage design, requiring both hands to press it simultaneously to start, which not only prevents accidental contact but also ensures safety.
④ The rotation speed of the rotary platform is adjustable, the action is smooth without impact, and the operating noise is below 65dB, creating a comfortable operating environment.
⑤ Built in fault self diagnosis system, when an abnormality occurs, the screen directly displays the fault code and solution guide, and maintenance personnel can quickly troubleshoot.
Detailed Images:

Symmetrical double heads: Innovative symmetrical dual welding head architecture, synchronized pressing of upper and lower linkage, single double point forming, completely eliminating the troubles of biased welding and false welding, and adjusting the spacing as desired; The 90 ° rotation welding function ensures a flawless distribution of four points, and under constant voltage and current drive, efficient production and reliable quality are achieved simultaneously.

Workpiece rotation platform: Efficient rotary platform, the workpiece automatically rotates 90 ° with the platform, and the welding alignment is completed in one step, with a perfect and balanced distribution of four points; The combination of precise division and smooth movement enables a qualitative leap 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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