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No. 538, Xingfu Road, Ind. East Zone, Chengdu, Sichuan, China
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86-28-8420-8558
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Product Introduction:
The semi-automatic pneumatic spot welding machine uses intermediate frequency double head spot welding technology to accurately handle the welding task of 2+2+2mm carbon steel saw blades with three layers (middle large piece, upper and lower small pieces). There are two welding heads on each side, and the electrode spacing of the machine head can be adjusted left and right to adapt to a variety of workpieces; The rotary platform automatically rotates the workpiece 90 ° after welding, and with the help of the machine head lifting action, completes two symmetrical welding processes, with only one start-up required for the entire process. The overall structure is compact, the layout is reasonable, the appearance combines industrial and modern aesthetics, the motion control is precise, the matching between air pressure and current is optimized, and the solder joints are full without virtual soldering; The system is equipped with multiple security protections, ensuring stable operation and easy maintenance. Energy saving and high efficiency are its outstanding advantages. The medium frequency inverter reduces the impact on the power grid and adopts an innovative mode of "welding machine fixing and workpiece rotation", which reduces the inertia loss of moving parts and significantly reduces energy consumption compared to traditional models. At the same time, it improves the controllability of welding rhythm, making it very suitable for the medium to high frequency and high-precision welding needs in the field of saw blade manufacturing.
Features:
① 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.
② The electricity cost savings brought by energy conservation, calculated on a two shift basis, can recover 8% to 10% of the total equipment price annually.
③ The high welding yield rate (above 99.5%) significantly reduces waste losses, and the rework cost is almost zero.
④ The whole machine occupies a small area and saves space compared to gantry welding machines, resulting in higher output per unit area.
⑤ The structure is sturdy and durable, with a design life of over 10 years and low annual amortization cost. The core components (transformers, cylinders) can be independently repaired, extending the overall service life of the machine. The investment payback period usually does not exceed 18 months.
Detailed Images:

Symmetrical double heads: The upper and lower welding heads are symmetrically pressed downwards at the same time, and two points can be welded in one go without any deviation or virtual connection. The distance between the two points can be adjusted freely; Rotate 90 ° for welding again, and the four points will be neat and the pressure and current will be stable from start to finish, making the work fast and reliable.

Workpiece rotation platform: Compared to manual or rough rotation, this rotary platform adopts program controlled 90 ° automatic rotation, which provides more accurate welding alignment and higher uniformity of the four points; And the division positioning is accurate, the action is stable, and the welding consistency is substantially improved as a result.

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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