Medium Frequency Seam Welding Machine
Technical Specifications
| Parameter |
Unit |
FN-100H |
| Rated capacity |
KVA |
100 |
| Power supply |
V/Ø/Hz |
380V±10% / 3 phases / 50Hz |
| Rated duty cycle |
% |
50% |
| Secondary voltage no load |
V |
5.94 - 7.6 |
| Welding thickness |
mm |
1.2+1.2 |
| Electrode force Max. |
KN |
7 |
| Cylinder stroke |
mm |
100 |
| Cooling water consumption |
L/h |
1200 |
| Working environment |
/ |
temperature: 1～45℃ humidity: 35～90％ |
Product Overview
The HFFN-100H Medium Frequency Seam Welding Machine is engineered for continuous welding of metal sheets, supporting carbon steel, iron, stainless steel, copper, silver, nickel, and various alloy materials. This machine excels in applications demanding continuous weld seams, stable welding strength, and reliable sealing performance—ideal for automotive parts, metal containers, sheet metal components, shell structures, cylindrical parts, and thin sheet lap welding.
Unlike conventional spot welding, seam welding employs wheel electrodes to apply continuous pressure and welding current while the workpiece moves along the welding path. This creates controlled weld spots at precise intervals, forming continuous or near-continuous seams. The primary value lies in maintaining uniform weld quality, stable overlap, consistent appearance, and minimizing risks of missed welds, weak bonds, burn-through, or deformation across extended weld paths.
With a welding thickness capacity of 1.2 + 1.2 mm, the HFFN-100H is particularly suited for thin sheet lap welding and production processes where seam consistency and sealing quality are critical.
Why Choose Medium Frequency Seam Welding?
Many thin sheet or shell products require more than individual weld points. Manufacturers often need assurance that seams are continuous, parts pass air-tightness or water-tightness tests, deformation is controlled, and every unit maintains consistent quality in batch production.
Medium frequency seam welding addresses these continuous lap welding requirements. The wheel electrode rolls along the workpiece surface while applying pressure and welding current, forming consistent weld spots along the seam path. Compared to manual segmented spot welding, this approach reduces variations in weld spacing, incomplete seams, and operator-dependent quality differences.
For automotive parts, metal housings, sealed components, containers, and stainless steel thin sheet parts, seam welding provides superior performance when stable seams and repeatable production are essential.
Key Product Features
- Continuous Seam Formation for Sealed and Long-Weld Parts: Utilizes wheel electrodes for continuous pressing and welding, ideal for workpieces with long lap seams or continuous weld point arrangements. Reduces leakage risks from excessive weld spacing, missed welds, or inconsistent bonding in sealed metal parts.
- Stable Medium Frequency Output for Better Weld Consistency: Provides fast current response and precise heat input control. Minimizes burn-through, spatter, blackening, deep indentation, and inconsistent seam strength in thin sheets, stainless steel, galvanized sheets, and non-ferrous metals.
- Suitable for Thin Sheet Lap Welding: Optimized for 1.2 + 1.2 mm welding thickness. Carefully balanced welding current, wheel pressure, welding speed, and cooling conditions improve seam stability and reduce workpiece deformation in sensitive thin materials.
- Compatible with Multiple Metal Materials: Supports carbon steel, iron, stainless steel, copper, silver, nickel, and various alloys. Sample welding recommended for final equipment configuration based on specific material properties.
Typical Applications
- Automotive Component Welding: Automotive thin sheet parts, brackets, shell components, lap structures, high-strength steel parts, hot-formed steel parts, and galvanized sheet components requiring continuous seams and consistent appearance.
- Stainless Steel Thin Sheets and Metal Containers: Stainless steel water tanks, metal cylinders, container edges, sealing parts, and thin sheet lap joints where continuous welds reduce leakage risks.
- Home Appliance and Sheet Metal Structures: Appliance housings, air duct parts, filter housings, sheet metal frames, and metal cover parts with long seams and stable appearance requirements.
- Cylindrical and Circumferential Seam Welding: Cylindrical, tubular, or ring-shaped lap workpieces using rotary fixtures or guide mechanisms for stable circumferential seams and edge lap welding.
Product Advantages
- More Stable Quality for Long Weld Seams: Continuous rolling and welding create uniform seams, eliminating variations common in manual spot welding.
- Superior Performance for Products with Sealing Requirements: Continuous lap welding processes enhance sealing performance in containers, housings, and tubular parts, reducing leakage and rework risks.
- Reduced Thin Sheet Deformation: Coordinated medium frequency power control, wheel pressure, welding speed, and cooling conditions minimize overheating, burn-through, indentation, and deformation.
- Improved Batch Production Consistency: Standardizes welding current, pressure, speed, and seam path, reducing operator-dependent variations and establishing repeatable welding processes for long-term production.
Frequently Asked Questions
What products is the HFFN-100H suitable for?
The HFFN-100H is suitable for thin sheet lap welding, continuous seams, metal housings, container edges, cylindrical parts, automotive components, and various non-ferrous metal workpieces. Final suitability depends on material, thickness, and seam type requirements.
What is the difference between a medium frequency seam welder and a spot welder?
A spot welder forms individual weld spots for local joining, while a seam welder uses wheel electrodes for continuous welding, creating continuous or near-continuous seams. Seam welding is superior for sealed parts, housings, and long weld seams.
Is this machine suitable for products with sealing requirements?
Yes, it can be evaluated for such applications. Seam welding is particularly suitable for parts requiring continuous welds, such as metal containers, cylinders, and housings. Final sealing performance should be confirmed through seam design and appropriate testing.
Can it weld stainless steel or galvanized sheets?
Yes, the machine welds stainless steel, carbon steel, iron, and galvanized sheets. For galvanized materials, consider spatter, coating burn-off, and electrode wear—sample testing is recommended.
Can it perform circumferential seam welding or irregular seam welding?
Yes, circumferential seam welding typically requires rotary fixtures or guide mechanisms, while irregular seams need dedicated tooling based on the product path. Both can be evaluated according to workpiece structure.
What information is needed before quotation?
Please provide product drawings, sample photos, material and thickness specifications, seam length, welding path details, sealing or strength requirements, production capacity targets, and current welding challenges.
