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Seam Welder

Seam welding operates under the principle of coalescence, uniting two metal sheets or workpieces through a series of overlapping spot welds.

The welding process in which two similar or dissimilar materials are joined at the seam by the application of heat generated from electrical resistance. The seam welding is a types of resistance welding, in which weld is produced by roller electrodes instead of tipped electrodes.

Most seam welding processes produce a continuous or intermittent seam weld near the edge of two overlapped metals by using two machine driven roller electrodes. As in the seam welding process, the roller electrodes move over the metal workpieces, the workpieces are under pressure and the current passing through them heats the two workpieces of the metal to the melting point. Thus, this process, sometimes, also called the seam spot welding.

The resistance seam welding is broadly classified into two types,

Intermittent Seam Welding – In case of intermittent welding, the weld occurs at specific spots rather than as a continuous line. This type of seam welding is useful for welding thick metals where a continuous weld is not possible.

Continuous Seam Welding – In continuous seam welding, an uninterrupted current flows through the electrodes and the metals to be joined are passed through the electrodes at a constant speed. As the workpieces remain under constant pressure, thus, it produces a uniform overlapping weld. Continuous seams are long, uninterrupted welds ideal for liquid-tight joints. Intermittent or stitch welding leaves gaps and is commonly used in applications that don’t require a hermetic seal.

The choice often hinges on the project’s requisite integrity level for the joined materials.

Seam welder features abd advantages

1. Seam welder can be automated using robotic machines.
2. No need of any flux and filler materials.
3. High welding speeds, a high degree of automation, making it ideal for high-volume production runs.
4. Excellent weld consistency and quality due to seam welder produces minimal distortion of the materials being joined.
5. Compared to other welding techniques, seam welder produces less heat input, resulting in less distortion, warping, and residual stress in the materials being joined..

Weldable metals

Iron, carbon steel, stainless steel, galvanized steel, copper, brass, aluminium, nickel, tin, alloy, etc

Industries

Automotive, Aerospace, Architecture and Construction, Food and Beverage Packaging, Kitchenware, Hardware, etc.
Manufacturing and Repairing

Welded products

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Specification and parameters

AC Seam Welder

	Items \ Model	unit	FN-100H	FN-160H	FN-200H
1	Rated capacity	KVA	100	160	200
2	Power supply	V/Ø/Hz	380V±10% / 3 phases / 50Hz
3	Rated duty cycle	%	50%	50%	50%
4	Secondary voltage no load	V	5.94 - 7.6	5.94 - 9.04	9.04 - 10
5	Welding thickness	mm	1.2+1.2	1.8+1.8	2+2
6	Electrode force Max.	KN	7	8	10
7	Cylinder stroke	mm	100	130	105
8	Cooling water consumption	L/h	1200	1500	2050
9	Working environment		temperature: 1～45℃ humidity: 35～90％

DC Seam Welder

	Items \ Model	unit	FN-100HB	FN-160HB	FN-200HB
1	Rated capacity	KVA	100	160	200
2	Power supply	V/Ø/Hz	380V±10% / 3 phases / 50Hz
3	Rated duty cycle	%	50%	50%	50%
4	Secondary voltage no load	V	3.52 - 7.04	4.52 - 9.05	10.6 - 12.67
5	Welding thickness	mm	1.2+1.2 steel	1.8+1.8 steel	2+2 steel
6	Electrode force Max.	KN	10	10	10
7	Cylinder stroke	mm	100	100	100
8	Cooling water consumption	L/h	1440	1800	2460
9	Working environment		temperature: 1～45℃ humidity: 35～90％

Key words：

Seam Welder