- Series: high-frequency powder preheating machine
- Typical use: preheating melamine, urea, phenolic and thermosetting powder before compression molding
- Material scope: powder compounds for tableware and thermoset molding
- Power range: 3 kW, 5 kW, 7 kW, 10 kW and 25 kW classes
- Main advantages: high-frequency powder heating, batch-weight matching, timed heating control and press-line integration
- CE certification available for export projects
High Frequency Preheating Machine
The high-frequency preheating machine is upstream equipment for melamine, urea, phenolic and other thermosetting powders before compression molding. It prepares the powder before molding so the downstream HCB, HCE, HCM or other compression press can control surface, flow and curing conditions more effectively.
For preheater selection, customers should review powder type, batch weight, power class, heating time, transfer distance, loading method and the downstream press together. When the power class is matched correctly, powder condition before molding is more stable, making surface gloss, air-mark control, flow behavior and downstream molding easier to manage.
Key Machine Capabilities
- High-frequency heating improves powder condition before the material enters the compression mold.
- 3 kW to 25 kW power classes can be matched to powder batch weight and downstream press configuration.
- Timed heating control can be set by material behavior, transfer distance and loading method.
- The machine supports melamine, urea, phenolic and other thermosetting powder compression molding lines.
Machine Functions and Molding Control
The main purpose of high-frequency preheating is to give powder a better heating condition before it enters the mold. For melamine, urea or phenolic powder, batch weight, power, heating time and transfer method affect downstream surface gloss, air marks, flow behavior and curing result.
Powder is heated before entering the mold, giving the downstream press a better starting condition for surface quality and material flow.
Different products use different powder batch weights, so power should match material behavior, batch weight and downstream press capacity. Correct matching helps improve powder flow, surface gloss, air-mark control, curing result and stable output.
Heating time can be set by powder type, product thickness, transfer distance and loading method, helping the heated powder reach the mold at the right condition.
The preheater should be planned with HCB, HCE, HCM or other compression molding presses, including transfer distance, operator position and press opening time.
Model Range and Specification Selection
High-frequency preheating machines are available in 3 kW, 5 kW, 7 kW, 10 kW and 25 kW classes. Selection depends on powder type, batch weight, product thickness, heating time, transfer distance, voltage and downstream press capacity.
Han Chang reviews product type, powder weight, transfer method, downstream press model, operator position and factory layout so heated powder can connect smoothly with the compression molding press.
Suitable for smaller batch weights, trial work, lighter tableware or smaller thermosetting products.
Suitable for common melamine tableware powder preparation when batch weight, product thickness or transfer time requires stronger preheating.
Suitable for larger batch weights, higher output lines or stronger upstream powder preparation, matched with downstream press capacity.
Power, voltage, powder weight, transfer distance, operator position and downstream press should be matched together for stable preheating results.
| Performance / Model | 3 kW preheating model | 5 kW preheating model | 7 kW preheating model | 10 kW preheating model |
| Performance / Model | 25 kW preheating model |
High-Frequency Preheating and Press-Line Setup
Effective preheating depends on more than the power number. Powder batch weight, material type, heating time, transfer distance, loading method and downstream press capacity all affect the condition of preheated powder. Han Chang reviews the preheater and compression press as one production line.
Preheated powder enters the mold with better flow condition, helping improve surface gloss, air-mark control, filling behavior and curing result.
3 kW to 25 kW power classes are selected by material type, batch weight, product thickness and downstream press capacity. The goal is stable preheated powder, better flow, better gloss and easier downstream compression molding.
Heating time should match powder behavior, transfer distance and loading method so the powder reaches the mold in a usable condition.
The preheater can support HCB, HCE, HCM or other thermosetting compression presses, linking powder preparation with downstream pressing conditions.
- Powder type, batch weight, product type, downstream press model, voltage and factory layout.
- Expected heating time, powder condition after preheating, transfer distance, loading method and operator position.
- Trial comparison for gloss, air marks, flow condition, curing result and demolding behavior.
- Distance and operation method between preheater and compression press before finalizing production settings.
Service, Imported Components and Export Support
Han Chang supports the machine itself: equipment discussion, installation confirmation, operator guidance, online machine diagnosis, replacement-part coordination and maintenance discussion are supported by service teams in Taiwan and Mainland China.
Applicable configurations can use imported key components such as Mitsubishi PLC, Fuji Electric touch panel and Japanese-brand oil seals. These components help with control stability, fault diagnosis, maintenance planning and long-term machine use. CE certification is available by export project, machine configuration and documentation scope.
Related equipment: Review the complete Melamine Compression Molding Machine range and compare Automatic Melamine Cup Forming Machine and Dual-Color Melamine Tableware Molding Machine by machine structure and product fit.
Han Chang can review preheater power, timer setting, heating condition, electrical control, powder batch weight, transfer method and downstream press connection so preheating works with the compression molding press.
Customers can provide control-screen photos, alarm messages, hydraulic gauge readings, platen temperature status, mold movement videos and site photos. Han Chang reviews hydraulic, electrical, heating, PLC, sensor, powder, mold, preheating and compression conditions before coordinating parts or service, helping factories protect surface gloss, thickness, color boundary, demolding quality and stable output.
PLC, touch panel, oil seals and related control components can be specified with imported brands by configuration, giving the factory clearer parameter control, fault diagnosis and future replacement planning.
Service teams in Taiwan and Mainland China can support equipment discussion, operation guidance, online diagnosis and replacement-part coordination for cross-region customers.
For export projects, CE certification can be discussed according to destination, machine configuration and documentation scope before purchasing.
High Frequency Preheating Machine FAQ
What role does a high-frequency preheater play in the line?
It is upstream equipment before compression molding, used to heat melamine, urea, phenolic and other thermosetting powder before the material enters the mold.
When should a factory consider preheating?
Preheating is worth reviewing when powder batch weight increases, the product is thicker, surface gloss is important, air marks or flow condition need improvement, or the downstream press needs a more stable powder condition.
How is preheater power selected?
Power is selected by powder type, batch weight, product thickness, heating time, transfer distance, voltage and downstream press capacity. Common classes include 3 kW, 5 kW, 7 kW, 10 kW and 25 kW.
Which presses can the preheater work with?
It can be planned with HCB, HCE, HCM or other thermosetting compression molding presses when powder preheating is useful for the process.
How is the preheating result checked?
Trial checks compare powder flow, product gloss, air marks, curing result and demolding condition, then heating time and power class are adjusted by product thickness and press condition.
Is CE certification available?
CE certification is available by export project, preheater configuration and documentation scope.
