Thermoset Hydraulic Transfer Molding Machine — HCF Series
Han Chang Machinery manufactures the HCF Thermoset Hydraulic Transfer Molding Machine for pot-type molding of thermoset parts. An operator manually loads a measured charge into the upper transfer pot and positions any required metal inserts before mold closure. The mold closes before the upper hydraulic cylinder drives the plunger, pressing the compound through runners and gates into the cavities for heat curing. Inserts are optional; insert-free parts use the same closed-mold transfer process.
The standard series comprises HCF-50, HCF-70, HCF-80, HCF-100, HCF-150 and HCF-200. Transfer-grade phenolic (PF/Bakelite) and urea-formaldehyde (UF) molding compounds are the core material choices. Typical application examples include switch bodies, terminal blocks, plug and socket components, and heat-resistant electrical insulation parts. Compare standard models for clamping force and usable mold space; compare the large HCF press for large-mold or multicavity work, checking mold fit, charge requirements and handling access together.
HCF at a glance
Pot-type transfer
A manually loaded upper pot supplies the closed mold through a hydraulically driven plunger.
PF and UF compounds
Start with phenolic/Bakelite or UF grades intended for transfer molding, matched to the part and tooling.
Optional metal inserts
Position terminals, bushings or threaded inserts in the tooling before closing the mold.
Six standard models
Compare HCF-50 through HCF-200 by clamping force, platen dimensions, stroke and maximum opening.
How HCF pot-type transfer molding works
Why choose an HCF hydraulic transfer molding press?
Locate inserts before filling
Tooling positions the metal components before compound enters the cavity. This makes HCF a practical process choice for combining electrical contacts or threaded connections with a molded thermoset body. The tooling must retain inserts against flow forces.
Feed the cavities from one pot
The charge enters through a defined runner-and-gate system rather than being placed directly in each cavity. This supports transfer-tool designs with multiple cavities, with charge capacity, flow balance and venting matched to the layout.
Choose usable mold space
The standard model range lets buyers compare clamping force alongside platen size and opening. Selecting all three together accommodates the mold and the clearance needed for insert loading and part removal.
Compare standard and large HCF presses
Start with a standard HCF when the mold and operating requirements fit. For large-mold or multicavity work, compare the large HCF press by usable mold space, charge requirements and working access; the closed-mold transfer process remains the same.
HCF-50–HCF-200 specifications and model selection
Compare HCF-50, HCF-70, HCF-80, HCF-100, HCF-150 and HCF-200 against your mold footprint, closed height and removal clearance. Read clamping force, platen dimensions, stroke and maximum opening together. Clamping force holds the mold closed; transfer pressure moves compound through the tooling. One does not substitute for the other.
Continue machine selection: HCF thermoset transfer molding machines · large HCF thermoset transfer molding press
Spec / Type HCF-50
| Clamping force (Ton) | 50 |
|---|---|
| Plate size (m/m) | 380×380 |
| Cylinder diameter (m/m) | 190 |
| Stroke (m/m) | 300 |
| Daylight (m/m) | 580 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 3 |
| Heater capacity (Kw) | 5 |
| Oil reservoir capacity (gallon) | 50 |
| Machine size LxWxH (m/m) | 1600x1050x2350 |
| Net weight approx (kg) | 2000 |
Spec / Type HCF-70
| Clamping force (Ton) | 70 |
|---|---|
| Plate size (m/m) | 420×455 |
| Cylinder diameter (m/m) | 212 |
| Stroke (m/m) | 380 |
| Daylight (m/m) | 620 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 3 |
| Heater capacity (Kw) | 5.5 |
| Oil reservoir capacity (gallon) | 55 |
| Machine size LxWxH (m/m) | 1600x1150x2400 |
| Net weight approx (kg) | 2650 |
Spec / Type HCF-80
| Clamping force (Ton) | 80 |
|---|---|
| Plate size (m/m) | 485×465 |
| Cylinder diameter (m/m) | 236 |
| Stroke (m/m) | 410 |
| Daylight (m/m) | 630 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 5 |
| Heater capacity (Kw) | 6 |
| Oil reservoir capacity (gallon) | 70 |
| Machine size LxWxH (m/m) | 1720x1200x2605 |
| Net weight approx (kg) | 3150 |
Spec / Type HCF-100
| Clamping force (Ton) | 100 |
|---|---|
| Plate size (m/m) | 600×550 |
| Cylinder diameter (m/m) | 265 |
| Stroke (m/m) | 460 |
| Daylight (m/m) | 750 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 5 |
| Heater capacity (Kw) | 10.6 |
| Oil reservoir capacity (gallon) | 100 |
| Machine size LxWxH (m/m) | 1840x1250x2825 |
| Net weight approx (kg) | 4100 |
Spec / Type HCF-150
| Clamping force (Ton) | 150 |
|---|---|
| Plate size (m/m) | 660×620 |
| Cylinder diameter (m/m) | 300/315 |
| Stroke (m/m) | 480 |
| Daylight (m/m) | 780 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 7.5 |
| Heater capacity (Kw) | 10.6 |
| Oil reservoir capacity (gallon) | 100 |
| Machine size LxWxH (m/m) | 2025x1350x2825 |
| Net weight approx (kg) | 4910 |
Spec / Type HCF-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) | 2300x1350x3170 |
| Net weight approx (kg) | 7500 |
Materials for a thermoset transfer molding press
| Material | Selection role | What matters for molding |
|---|---|---|
| Phenolic / PF / Bakelite | Core choice for a Bakelite molding machine using the transfer process. | Choose a transfer-grade compound with flow and curing behavior suited to the runner system and part geometry. |
| Urea-formaldehyde / UF | Core thermoset material-selection direction. | Use a transfer grade and match its electrical, thermal and mechanical properties to the finished component. |
| BMC / DMC short-fiber compounds | Conditional, grade-specific configuration. | Material form, fiber content, pot and plunger sizing, gate restrictions, wear and venting require application-specific selection. |
Ordinary thermoplastics, conventional SMC sheets and continuous-fiber materials are not standard HCF transfer feedstocks. Rubber and silicone require a separately documented HCF-specific configuration.
Typical electrical-component applications
Typical process-selection examples include switch bodies, terminal blocks, fuse holders, plug and socket components, and heat-resistant electrical insulation parts. Insert-molded designs can combine a thermoset body with terminals, copper bushings, nuts or metal plates. These examples describe application directions, not delivered customer projects; the material grade and tooling determine suitability for each part.
Select the press around the mold and the work
Clamping requirement
Use projected cavity area, applicable molding pressure and tooling requirements to establish clamping force. Part dimensions alone are not enough to select press tonnage.
Mold fit and opening
Include mold footprint, closed height, mounting details and the space needed to remove the molded part. Insert-loading access matters as much as fitting the closed mold.
Charge and transfer capacity
Account for all cavities, runners and pot-cull material in each charge. Pot capacity, plunger dimensions and compound flow requirements are separate from clamping-force selection.
Standard or large HCF
Use a standard model when mold space and the transfer arrangement fit. For large-mold or multicavity work, compare the large HCF press against mold dimensions, total charge and insert-loading access rather than assuming size alone improves output.
Investment, operation and maintenance
Compare the complete production requirement, not press price alone: transfer tooling, insert fixtures, material preparation, utilities and operator handling all affect investment. Runner and pot-cull residue consume compound; cured thermoset residue cannot simply be remelted as fresh feed. Cavity count must be balanced against charge size, filling and curing requirements rather than treated as a guaranteed output increase.
Manual charging, insert placement, demolding and residue removal contribute to operating time alongside transfer and curing. Include access for mold cleaning, pot-and-plunger inspection, hydraulic checks and heating-system maintenance in the installation layout. Actual energy use and production rate depend on the selected equipment, tooling, compound and operating cycle.
Start your HCF quotation
Send a part drawing or photo, material grade and target output. Add mold dimensions, cavity count and insert details if available; you do not need to know the required tonnage to begin. Request standard HCF selection and pricing.
Selecting equipment for a large mold or multicavity phenolic parts? Explore the Large Thermoset Hydraulic Transfer Molding Press.
Choose HCF with Han Chang Machinery
Han Chang Machinery brings more than 40 years of machinery manufacturing experience to equipment selection. Presales discussion connects your part, material and mold with the HCF model range, covering clamping force, usable mold space, heating requirements and the transfer arrangement. Buyers can start with available product information rather than a completed machine specification.
Get an HCF machine recommendation and quotation
Send your product drawing, material and planned output. Include existing mold dimensions when available so the discussion starts with the equipment your product needs.
HCF Thermoset Transfer Molding FAQs
What type of machine is the HCF?
HCF is a pot-type Thermoset Hydraulic Transfer Molding Machine. The operator charges the upper pot, the mold closes, and the upper hydraulic cylinder drives a plunger to transfer compound through runners and gates into the cavities. The material cures under heat in the closed mold.
Can HCF mold parts without metal inserts?
Yes. Metal inserts are optional. Insert-free parts use the same pot-and-plunger transfer process. For parts with terminals, bushings or nuts, locate and retain the inserts in the tooling before closure so the compound can fill around them.
Which materials should I specify for a Bakelite molding machine?
Start with transfer-grade phenolic (PF/Bakelite) or UF molding compounds and supply the exact grade or data sheet. A resin-family name does not establish flow, curing or finished-part properties. BMC/DMC requires grade-specific transfer-unit and tooling selection rather than an assumption of standard compatibility.
How do I choose between HCF-50, HCF-70, HCF-80, HCF-100, HCF-150 and HCF-200?
Compare the mold clamping requirement, footprint, closed height and opening clearance with the specifications for each model. Then match charge volume and transfer requirements separately. A larger clamping-force rating does not automatically provide the right pot capacity, plunger pressure or working access.
Can I use my existing mold?
An existing transfer mold is a useful starting point. Send its dimensions, mounting details, cavity layout and pot or sprue interface information. A mold made for another process is not automatically interchangeable: the charge path, heating, venting and demolding arrangement must suit HCF transfer molding.
What determines the price of an HCF hydraulic transfer molding press?
Price follows the selected press size, transfer arrangement, heating requirements and specified equipment scope. Tooling, insert fixtures, handling and installation requirements also affect the overall project budget. Send product and mold information for a configuration-based quotation rather than comparing tonnage alone.
When should I compare a large HCF press with the standard series?
Start with standard HCF models when clamping, mold space, charge and operator access fit the job. For large-mold or multicavity work, compare the large HCF press using mold footprint, closed height, opening clearance and total charge. Check pot-and-plunger requirements separately from clamping force. A large press does not by itself establish higher output.
Is thermoset transfer moulding the same as thermoset transfer molding?
Yes. Moulding is a spelling variant of molding, not a different process. For HCF, both refer to pot-type hydraulic transfer of thermoset compound into an already closed mold, followed by heat curing. The process qualifier matters more than the spelling when comparing equipment.
