Product Parameters
| Items Model |
unit |
HFTR-45000 |
| Capacitor volume |
uf |
90000 |
| Power supply |
KVA/V/Hz |
100/380/50 |
| Rated duty cycle |
% |
50% |
| Primary current Max. |
A |
120 |
| Primary cable |
mm2 |
3*35+2*10 |
| Short-circuit current Max. |
KA |
120 |
| Secondary voltage |
V |
22-25 |
| Air pressure cylinder |
Ø*L |
Ø320*150 |
| Working pressure Max. (0.5/10.5MPa) |
KN |
40 |
| Working environment |
|
temperature: 1～45℃ humidity: 35～90％ |
Product Introduction
The HFTR-45000 Automotive Nut Welding Machine is designed for high-current, high-energy metal spot welding and projection welding applications. It is especially suitable for automotive components, high-strength steel, hot-formed steel, galvanized sheets, copper, silver, nickel, and alloy materials. Using capacitor discharge technology, the machine releases concentrated welding energy within a very short time, helping customers solve common issues such as rapid heat dissipation, insufficient weld strength, surface burn marks, and unstable welding quality in batch production.
With a maximum short-circuit current of 210KA, a rated duty cycle of 50%, a secondary voltage of 22–25V, and a rated capacitance of 90000UF, the HFTR-45000 is suitable for welding conditions that require higher energy output, stronger welding penetration, and stable performance during continuous production.
Product Features and Advantages
Higher Stored Energy Capacity for Thick Materials and High-Strength Joining
The HFTR-45000 is equipped with a rated capacitance of 90000UF. Compared with lower-capacity capacitor discharge welding machines, it provides a stronger energy reserve for demanding welding tasks. For workpieces with greater thickness, higher material strength, or larger welding areas, the machine provides a more stable discharge foundation and helps form stronger welded joints.
210KA Short-Circuit Current for Fast Welding of Highly Conductive Materials
The HFTR-45000 reaches a maximum short-circuit current of 210KA, making it suitable for applications that require instant high-current output. For copper parts, silver contacts, nickel strips, conductive terminals, and alloy connecting components, the machine delivers concentrated heat input in a short time and reduces welding instability caused by rapid heat diffusion.
Better Suited for Automotive Projection Welding
In automotive manufacturing, welding nuts, bolts, high-strength steel sheets, hot-formed steel, and galvanized sheets requires high weld strength, accurate positioning, and stable batch consistency. The HFTR-45000 is suitable for these demanding production scenarios, including automotive structural parts, brackets, connecting parts, and nut or bolt projection welding processes.
Short-Time Concentrated Discharge to Reduce Heat-Affected Areas
One of the key advantages of capacitor discharge welding is short discharge time and concentrated heat input. Compared with welding methods that require longer heating time, the HFTR-45000 helps reduce overall heat exposure on the workpiece and minimizes sheet deformation, coating damage, surface blackening, and surrounding heat impact.
Typical Application Scenarios
Welding of Automotive High-Strength Steel and Hot-Formed Steel
Automotive lightweight design and structural safety place higher requirements on welding quality. The HFTR-45000 is suitable for joining high-strength steel and hot-formed steel components, helping customers improve weld strength and consistency while reducing rework caused by unstable welding.
Spot Welding and Projection Welding of Galvanized Sheets
Galvanized sheet welding often faces problems such as spatter, coating burn-off, and insufficient weld strength. Through short-time high-energy discharge, the HFTR-45000 concentrates heat in the welding area and is suitable for welding galvanized sheet structures, brackets, and automotive-related sheet metal parts.
Nut and Bolt Projection Welding
Nut and bolt projection welding requires stable torque, accurate positioning, and consistent weld strength. The HFTR-45000 can be used for projection welding in automotive components, hardware structures, and assembly parts, helping customers reduce missed welds, offset welds, and weak welds.
Welding of Copper, Silver, Nickel, and Alloy Materials
For materials with high conductivity and fast heat dissipation, the HFTR-45000 provides higher instant current output. It is suitable for copper alloy parts, silver contacts, nickel strips, conductive terminals, electrical connectors, and related welding applications.
FAQ
Q1:What high-load welding conditions is the HFTR-45000 better suited for?
A:The HFTR-45000 is better suited for applications with larger weld areas, higher material strength, or stable projection collapse requirements, such as automotive nut projection welding, high-strength steel joining, galvanized structural parts, and conductive non-ferrous metal components.
Q2:Can the HFTR-45000 help improve unstable torque in nut projection welding?
A:Yes. Unstable torque in nut projection welding is often related to insufficient energy, inconsistent projection collapse, electrode force, or positioning. The HFTR-45000 provides higher stored energy output, but proper fixtures, electrodes, and parameter testing are still required.
Q3:Why do high-strength steel or hot-formed steel require a higher-energy capacitor discharge welder?
A:These materials have higher strength and are more difficult to join. Welding requires enough concentrated energy to form a reliable joint. The HFTR-45000 is suitable for high-strength material joining where weld strength, torque, and batch consistency are critical.
