- Series: HCAV / HCAVE series
- Typical products: rubber seals, O-rings, oil seals, silicone gaskets, automotive rubber parts and industrial sealing products
- Material scope: rubber, silicone, Bakelite, glass fiber, carbon fiber and thermoset composite materials
- Material configuration: rubber, silicone, Bakelite, glass fiber, carbon fiber and thermoset composite materials can be reviewed by mold, heating and demolding conditions.
- CE certification available for export projects
Vacuum Compression Molding Machine | Rubber Seals
The HCAV / HCAVE vacuum compression molding machine gives rubber and silicone sealing products a controlled hot press platform for vacuum venting, curing and pressure holding.
For O-rings, oil seals and gaskets, Han Chang focuses on vacuum removal, platen parallelism, heating stability and demolding method so the machine can support repeatable sealing-surface quality.
Key machine advantages
- Vacuum venting reduces trapped air in sealing grooves and parting lines.
- Hydraulic pressure repeatability helps control flash and sealing edge consistency.
- Heating plate stability supports rubber vulcanization and silicone curing.
- Ejection or demolding support can be reviewed for deeper or softer seal shapes.
Machine Functions and Molding Control
Rubber seals need stable pressure, heat and venting control. HCAV / HCAVE machines combine vacuum, platen heating and oil-hydraulic holding pressure so seals, O-rings and silicone gaskets can cure with fewer air marks and more consistent edges.
Vacuum helps pull trapped air away from grooves, lips and parting lines before the material fully cures.
Stable platen movement and pressure holding support sealing-edge consistency and controlled flash.
Heating plate control lets the operator match rubber hardness, mold thickness and cure time. For rubber or solid-silicone parts, Han Chang matches material hardness, mold venting, platen temperature, holding time, vacuum, sliding-table or ejection needs and demolding method, giving the customer clearer control of sealing surface, flash, air marks and part removal.
For soft, deep or tight-tolerance seals, demolding and ejection options can reduce product damage.
Model range and configuration
Selected for O-rings, gaskets and smaller sealing molds.
Selected when mold weight, platen size, cavity count or output is higher.
Recommended when seal geometry benefits from assisted release.
Review mold size, rubber/silicone hardness, vacuum requirement, heating capacity and demolding path.
Continue machine selection: rubber and silicone compression family · sliding-table press with ejection · precision silicone vacuum compression machine
Spec / Type HCAV-80D
| Clamping force (Ton) | 80 |
|---|---|
| Plate size (m/m) | 439×419 |
| Cylinder diameter (m/m) | 236 |
| Stroke (m/m) | 320 |
| Daylight (m/m) | 500 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 5×2 |
| Heater capacity (Kw) | 7.6×2 |
| Oil reservoir capacity (gallon) | 150 |
| Machine size LxWxH (m/m) | 3140x1528x2185 |
| Net weight approx (kg) | 5400 |
Spec / Type HCAV-100D
| Clamping force (Ton) | 100 |
|---|---|
| Plate size (m/m) | 355×355
439×419 555×505 |
| Cylinder diameter (m/m) | 265 |
| Stroke (m/m) | 320 |
| Daylight (m/m) | 500 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 5×2 |
| Heater capacity (Kw) | 10.6×2 |
| Oil reservoir capacity (gallon) | 150 |
| Machine size LxWxH (m/m) | 3380x1793x2370 |
| Net weight approx (kg) | 7600 |
Spec / Type HCAV-150D
| Clamping force (Ton) | 150 |
|---|---|
| Plate size (m/m) | 439×419
555×505 614×574 |
| Cylinder diameter (m/m) | 300/315 |
| Stroke (m/m) | 320 |
| Daylight (m/m) | 500 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 7.5×2 |
| Heater capacity (Kw) | 10.6×2 |
| Oil reservoir capacity (gallon) | 150 |
| Machine size LxWxH (m/m) | 3750x1880x2370 |
| Net weight approx (kg) | 9000 |
Spec / Type HCAV-200D
| Clamping force (Ton) | 200 |
|---|---|
| Plate size (m/m) | 555×505
614×574 674×674 |
| Cylinder diameter (m/m) | 368 |
| Stroke (m/m) | 320 |
| Daylight (m/m) | 500 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 7.5×2 |
| Heater capacity (Kw) | 16.6×2 |
| Oil reservoir capacity (gallon) | 170 |
| Machine size LxWxH (m/m) | 3750x1860x2760 |
| Net weight approx (kg) | 12000 |
Spec / Type HCAV-250D
| Clamping force (Ton) | 250 |
|---|---|
| Plate size (m/m) | 614×574
674×674 785×710 |
| Cylinder diameter (m/m) | 400 |
| Stroke (m/m) | 320 |
| Daylight (m/m) | 500 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 7.5×2 |
| Heater capacity (Kw) | 16.6×2 |
| Oil reservoir capacity (gallon) | 170 |
| Machine size LxWxH (m/m) | 3750x1860x2760 |
| Net weight approx (kg) | 12500 |
Spec / Type HCAV-300D
| Clamping force (Ton) | 300 |
|---|---|
| Plate size (m/m) | 614×574
630×650 674×674 |
| Cylinder diameter (m/m) | 450 |
| Stroke (m/m) | 320 |
| Daylight (m/m) | 500 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 7.5×2 |
| Heater capacity (Kw) | 16.6×2 |
| Oil reservoir capacity (gallon) | 170 |
| Machine size LxWxH (m/m) | 3750x1965x2760 |
| Net weight approx (kg) | 13000 |
Spec / Type HCAV-350D
| Clamping force (Ton) | 350 |
|---|---|
| Plate size (m/m) | 700×700 |
| Cylinder diameter (m/m) | 460 |
| Stroke (m/m) | 320 |
| Daylight (m/m) | 500 |
| Pump pressure (kg/cm2) | 210 |
| Motor (HP) | 10×2 |
| Heater capacity (Kw) | 16.6×2 |
| Oil reservoir capacity (gallon) | 170 |
| Machine size LxWxH (m/m) | 3760x1965x2960 |
| Net weight approx (kg) | 14500 |
How to choose this hot press compression machine
Choose this page’s configuration when the production target is a rubber or silicone sealing product where air traps, flash, lip deformation and demolding marks affect the final seal.
Check parting line, sealing lip, cavity count and surface tolerance before selecting platen size and pressure.
Match vacuum timing with mold vent design so trapped air can leave before final pressure holding.
Rubber vulcanization or silicone curing must match material hardness, mold mass and cycle target.
For oil seals, O-rings or deep gaskets, confirm whether operator removal or ejection support is better.
- Seal drawing, sealing surface, tolerance and expected flash standard.
- Rubber or silicone compound, Shore hardness, cure behavior and material weight.
- Mold size, mold weight, cavity count, vent path, daylight and demolding method.
- Target output, voltage, factory layout and export/service requirements.
Machine service, imported components and export support
Han Chang supports the machine as production equipment, not as a catalog-only item. Service support covers model selection, installation discussion, operating guidance, online machine diagnosis and replacement-part coordination.
Applicable configurations can use imported key components such as Mitsubishi PLC, Fuji Electric touch panel and Japanese-brand oil seals, helping customers maintain stable control, easier maintenance judgment and clearer export planning.
Han Chang reviews hydraulic system, heating control, vacuum/sliding/ejection movement, PLC settings and on-site operation videos to help confirm the machine condition.
Mitsubishi PLC, Fuji Electric touch panel and Japanese-brand oil seals can be used in applicable configurations.
When pressure, heating, vacuum, sliding movement, ejection or machine alarm issues occur, Han Chang can review settings, photos and videos before arranging parts or service.
CE certification is available for export projects when required by the selected configuration and documentation scope.
Vacuum Compression Molding Machine | Rubber Seals FAQ
Can HCAV produce both rubber seals and silicone gaskets?
Yes. The same HCAV / HCAVE machine series can be configured for rubber seals or silicone gaskets according to compound, mold, vacuum and curing needs.
Why use vacuum for rubber seals?
Vacuum helps reduce trapped air, bubbles and air marks around grooves, sealing lips and parting lines.
When is an ejection configuration useful?
Ejection is useful when the seal is soft, deep, difficult to remove, or easily damaged by manual demolding.
What data helps confirm the model?
Prepare seal drawing, compound, hardness, mold size, cavity count, vacuum requirement, curing time and target output.
Does Han Chang support export projects?
CE certification available for export projects. For rubber or solid-silicone parts, Han Chang matches material hardness, mold venting, platen temperature, holding time, vacuum, sliding-table or ejection needs and demolding method, giving the customer clearer control of sealing surface, flash, air marks and part removal.
