- Series: HCM dual-color melamine compression molding machine
- Typical products: two-color bowls, plates, cups, trays, patterned tableware, mahjong tiles and selected single-color products
- Material scope: melamine powder and thermosetting tableware compounds
- Model range: HCM-150 to HCM-400
- Main advantages: upper-mold shifting, left upper mold for the first color, right upper mold for single-color or second-color work, degassing and pressure holding
- CE certification available for export projects
Dual-Color Melamine Tableware Molding Machine
HCM uses an upper-mold shifting mechanism to carry left and right upper molds on one compression press. For a dual-color part, the left upper mold performs the first-color forming step. The mechanism then shifts to the right upper mold, which performs the second-color step. The right upper mold can also be used with a single-color mold for single-color production.
The color boundary of a dual-color part is designed into the mold; it is not drawn or controlled by the machine. HCM’s advantage is the orderly shifting, positioning and pressing of the two upper molds on a rigid hydraulic structure, followed by degassing, platen heat and holding pressure to cure the melamine compound and produce a consistent surface.
Advantages of HCM upper-mold shifting
- The upper shifting mechanism moves the left or right upper mold into the pressing position according to the production sequence.
- The left upper mold forms the first color, and the right upper mold forms the second color in a dual-color cycle.
- The right upper mold can also work with a suitable single-color mold, giving the press useful production flexibility.
- Mold design defines the boundary; the machine supplies repeatable shifting, hydraulic pressure, heat, degassing and holding conditions.
Machine Functions and Molding Control
The defining HCM mechanism is located above the pressing area. It carries two upper molds and shifts the selected mold over the lower mold before closing and compression. This arrangement gives the left upper mold, right upper mold and lower mold clear roles, so an operator can follow the first-color, second-color and single-color sequences without confusing mold function with color-boundary design.
The overhead mechanism moves the left or right upper mold into the pressing center according to the programmed sequence. Machine selection therefore checks available shifting space, mold dimensions and the weight of both upper molds.
The left upper mold performs the first-color forming step of a dual-color product. The mold defines that color’s shape and area, while HCM supplies the required closing movement and hydraulic force.
The right upper mold can run a suitable single-color product. During dual-color production, it follows the left mold and performs the second-color step, giving each upper mold a clear production task.
Hydraulic compression, degassing, platen temperature and holding time cure the compound and manage density, gloss, flash and release. These conditions support molding quality; the mold structure still determines the visible color boundary.
HCM-150 to HCM-400 model range
HCM-150, HCM-200, HCM-300 and HCM-400 are matched by part size, dimensions and weight of both upper molds, lower-mold size, platen area, daylight, cavity count and required daily output.
This class suits small to medium parts, lower cavity counts or new mold development. Han Chang still checks the shifting envelope, weight of both upper molds, lower-mold dimensions and the actual force required by both color-forming steps.
This is a practical class for common dual-color or single-color bowls, plates, cups and trays, balancing platen area, overhead mold-shifting space, hydraulic capacity and daily production rhythm.
The larger platen, daylight and frame space suit heavy molds, more cavities or larger products. Han Chang matches the final class to both upper-mold weights, shifting travel, pressing force and target output.
Spec / Type HCM-150
| Clamping force (Ton) | 150 |
|---|---|
| Plate size (m/m) | 660×620 |
| Cylinder diameter (m/m) | 300/315 |
| Stroke (m/m) | 480 |
| Daylight (m/m) | 700 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 7.5 |
| Heater capacity (Kw) | 10.6 |
| Oil reservoir capacity (gallon) | 100 |
| Machine size LxWxH (m/m) | 2030x1350x2370 |
| Net weight approx (kg) | 4800 |
Spec / Type HCM-200
| Clamping force (Ton) | 200 |
|---|---|
| Plate size (m/m) | 660×620
720×720 |
| Cylinder diameter (m/m) | 368 |
| Stroke (m/m) | 500 |
| Daylight (m/m) | 820 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 10 |
| Heater capacity (Kw) | 15.2 |
| Oil reservoir capacity (gallon) | 120 |
| Machine size LxWxH (m/m) | 2300x1350x2670 |
| Net weight approx (kg) | 5700
7500 |
Spec / Type HCM-300
| Clamping force (Ton) | 300 |
|---|---|
| Plate size (m/m) | 720×720
900×860 |
| Cylinder diameter (m/m) | 450 |
| Stroke (m/m) | 560 |
| Daylight (m/m) | 810 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 15 |
| Heater capacity (Kw) | 20 |
| Oil reservoir capacity (gallon) | 200 |
| Machine size LxWxH (m/m) | 2480x1490x2945 |
| Net weight approx (kg) | 8200
11000 |
Spec / Type HCM-400
| Clamping force (Ton) | 400 |
|---|---|
| Plate size (m/m) | 720×720
900×860 |
| Cylinder diameter (m/m) | 500 |
| Stroke (m/m) | 560 |
| Daylight (m/m) | 950 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 15 |
| Heater capacity (Kw) | 27 |
| Oil reservoir capacity (gallon) | 250 |
| Machine size LxWxH (m/m) | 2580x1500x3800 |
| Net weight approx (kg) | 9000
12000 |
How HCM uses the left and right upper molds
Han Chang starts with the part and mold drawings to understand the designed color boundary. The dimensions and weight of the left upper mold, right upper mold and lower mold, together with charge weights and output, then establish the upper shifting space, hydraulic force, platen capacity and operating sequence. This makes the responsibilities of mold and machine clear before a press is selected.
The left upper mold carries the first-color forming task. Its dimensions, weight, geometry and charge condition are used to check the shifting envelope and pressing configuration.
After the mechanism shifts from the left side, the right upper mold performs the second-color forming step. The shape where the two colors meet comes from the dual-color mold design.
The right upper mold can also run a suitable single-color mold. When the mold and program match, one HCM press can therefore support both dual-color and single-color orders.
Inner and outer colors, rim colors and local color blocks are defined by the mold structure and machining. HCM provides upper-mold shifting, positioning and stable compression conditions.
- Part and mold drawings showing both colors identify which mold feature creates the visible boundary.
- Dimensions, weights, cavity count and release method for the left upper mold, right upper mold and lower mold establish the required shifting and pressing space.
- First- and second-color charge weights, output, voltage and plant conditions establish the hydraulic, heating and operating configuration.
HCM delivery and maintenance support
Han Chang provides operation guidance, delivery records, parts identification and maintenance support according to the actual HCM specification. On-site personnel check the control display, alarms, pressure gauge and observed machine movement one stage at a time, giving each upper-mold shift and pressing action a clear physical reference.
On-site personnel can use the control display, alarms, pressure gauge and observed machine movement to check left/right upper-mold shifting, positioning, closing, degassing, holding, opening and release one stage at a time.
Delivery records identify the roles of both upper molds, main operating sequence, PLC settings and principal component specifications. They provide a consistent machine reference for later mold changes, process adjustment and parts identification.
Applicable builds can use Mitsubishi PLC, Fuji Electric touch panel and Japanese-brand oil seals. Teams in Taiwan and Mainland China can assist with operation guidance, parts identification and maintenance from the ordered machine records.
CE certification is available according to the actual HCM specification and export project. Guarding, electrical control, safety circuits and documentation are based on the machine movement and configuration confirmed in the order.
Dual-Color Melamine Tableware Molding Machine FAQ
How does HCM produce a dual-color part?
HCM uses its upper-mold shifting mechanism to alternate between two upper molds. The left upper mold forms the first color, then the mechanism shifts to the right upper mold for the second color. Compression, degassing, platen heat and holding pressure complete the molding cycle.
Is the right upper mold only for the second color?
No. The right upper mold can be used with a single-color mold for single-color production. In a dual-color production cycle, the same right upper-mold position carries the mold responsible for the second color.
What determines the boundary between the two colors?
The color boundary is designed and machined into the mold structure; the machine does not create or control that line. HCM shifts the left and right upper molds in sequence and provides stable pressing conditions.
Which products suit HCM?
Bowls, plates, cups, trays, patterned tableware and mahjong tiles with inner/outer colors, rim colors or local color blocks can be evaluated from their molds. Suitable single-color products can also run from the right upper-mold position.
How does Han Chang configure HCM?
Part and mold drawings, dimensions and weights of both upper molds and the lower mold, cavity count, both charge weights, release method and output allow Han Chang to match upper shifting space, force, platen, daylight, heat and operating sequence.
For melamine tableware production, these references help the customer review molding defects, line layout, mold conditions, powder behavior, venting, holding pressure and daily output planning. Related equipment: Review the complete Melamine Compression Molding Machine range and compare High Frequency Preheating Machine and Melamine Tableware Molding Machine by machine structure and product fit.
Related Reading: Melamine Molding and Line Planning
