- Series: HCR rubber injection molding machine
- Typical products: O-rings, oil seals, gaskets, dust boots, damping parts and rubber sealing components
- Material scope: natural rubber, synthetic rubber, NBR, EPDM, FKM, oil-resistant rubber and heat-resistant rubber compounds
- Model range: HCR-500 to HCR-4000 for different shot C.C., mold size, clamping demand, platen/daylight and output requirements
- Selection data: part drawing, compound hardness, shot weight, runner layout, mold cavities, mold weight, target output and demolding method
- CE certification available for export projects
HCR Rubber Injection Molding Machine for O-Rings, Oil Seals and Gaskets
For factories producing O-rings, oil seals, gaskets, dust boots or industrial rubber sealing parts, the HCR machine is the rubber injection press to review when controlled filling, low flash and repeatable daily production matter.
HCR integrates direct-pressure injection, three-stage pressure, four-stage flow, material heating, clamping, venting and demolding in one machine, so O-rings, oil seals and gaskets can be produced with steadier filling and sealing-surface control. Customer value comes from turning trial-mold settings into approved production recipes that operators can run again on the next batch.
Key HCR production advantages
- Direct-pressure injection gives rubber compound a firm filling path from barrel to cavity, which is important for sealing surfaces and cavity-weight consistency.
- Three-stage pressure and four-stage flow control let operators tune filling, venting, packing and holding for different NBR, EPDM, FKM and natural-rubber compounds.
- The HCR frame, platen, clamping system and heating control are selected together with mold size, shot C.C., cavity count and demolding method, giving the customer a clearer machine configuration for production planning.
- PLC operation helps factories keep pressure, flow, temperature, curing time and demolding action as repeatable machine settings for daily production.
Machine Functions and Molding Control
The value of HCR is the machine system behind the molded result. Direct-pressure injection, staged pressure and flow, clamping, vent grooves, heating, curing time and demolding work together so rubber parts leave the mold with controlled filling, controlled flash and clean sealing surfaces.
The HCR injection unit pushes rubber compound into the mold with a direct filling force, helping O-rings, oil seals and gaskets avoid weak far-cavity filling. 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.
Operators can set different pressure and flow stages for filling, venting, packing and holding, instead of forcing every compound through one fixed injection action.
Clamping force, mold parting surface and vent-groove layout are matched with shot C.C. to control flash, trapped air and sealing-edge defects.
Heating time, curing time and demolding action are built into the machine settings, helping rubber parts keep elasticity, shape and sealing-surface quality.
HCR model range for shot volume, mold size and clamping demand
Best for smaller shot C.C., trial molds, lower cavity count and precision rubber parts where machine response and setup control matter.
A practical range for common sealing parts, medium molds, higher cavity counts and stronger clamping demand.
Used when the mold is heavier, the shot volume is larger, or the product requires more cavity capacity for industrial rubber production.
Han Chang checks shot C.C., platen size, daylight, mold weight, clamping force, venting and demolding before recommending the HCR model.
Continue machine selection: rubber and solid-silicone injection family · HCR solid silicone injection machine
Spec/Type HCR-500
| Clamping force (Ton) | 150 |
|---|---|
| Plate size (m/m) | 360×460 |
| Cylinder diameter (m/m) | 300/315 |
| Stroke (m/m) | 410 |
| Motor (HP) | 10 |
| Heater capacitor (Kw) | 7.7 |
| Max shot volum (C.C) | 500/1000 |
| Screw (m/m) | 45 |
| Screw speed (RPM) | 0-120 |
| Material size(Txw) (m/m) | 10×46 |
| Kerosene pump (HP) | 1/2 |
| Oil reservoir capacity (gallon) | 100 |
| Machine size LXWXH (m/m) | 2430x1990x3330 |
| Net weight approx (kg) | 5500 |
Spec/Type HCR-1000
| Clamping force (Ton) | 200 |
|---|---|
| Plate size (m/m) | 520×520 |
| Cylinder diameter (m/m) | 368 |
| Stroke (m/m) | 500 |
| Motor (HP) | 15 |
| Heater capacitor (Kw) | 13 |
| Max shot volum (C.C) | 1000/1500 |
| Screw (m/m) | 45 |
| Screw speed (RPM) | 0-120 |
| Material size(Txw) (m/m) | 10×46 |
| Kerosene pump (HP) | 1/2 |
| Oil reservoir capacity (gallon) | 150 |
| Machine size LXWXH (m/m) | 2790x2080x3700 |
| Net weight approx (kg) | 6800 |
Spec/Type HCR-1500
| Clamping force (Ton) | 200 |
|---|---|
| Plate size (m/m) | 520×520
520×580 |
| Cylinder diameter (m/m) | 368 |
| Stroke (m/m) | 500 |
| Motor (HP) | 15 |
| Heater capacitor (Kw) | 13 |
| Max shot volum (C.C) | 1500/2000 |
| Screw (m/m) | 45 |
| Screw speed (RPM) | 0-120 |
| Material size(Txw) (m/m) | 10×46 |
| Kerosene pump (HP) | 1/2 |
| Oil reservoir capacity (gallon) | 150 |
| Machine size LXWXH (m/m) | 2790x2080x3700 |
| Net weight approx (kg) | 7000 |
Spec/Type HCR-2000
| Clamping force (Ton) | 300 |
|---|---|
| Plate size (m/m) | 570×585
620×650 |
| Cylinder diameter (m/m) | 450 |
| Stroke (m/m) | 600 |
| Motor (HP) | 20 |
| Heater capacitor (Kw) | 16.5 |
| Max shot volum (C.C) | 2000/2500 |
| Screw (m/m) | 45 |
| Screw speed (RPM) | 0-120 |
| Material size(Txw) (m/m) | 10×46 |
| Kerosene pump (HP) | 1/2 |
| Oil reservoir capacity (gallon) | 165 |
| Machine size LXWXH (m/m) | 2860x2280x4050 |
| Net weight approx (kg) | 9000 |
Spec/Type HCR-4000
| Clamping force (Ton) | 500 |
|---|---|
| Plate size (m/m) | 700×720 |
| Cylinder diameter (m/m) | 560 |
| Stroke (m/m) | 700 |
| Motor (HP) | 25 |
| Heater capacitor (Kw) | 18.5 |
| Max shot volum (C.C) | 3000/4000 |
| Screw (m/m) | 50 |
| Screw speed (RPM) | 0-120 |
| Material size(Txw) (m/m) | 10×46 |
| Kerosene pump (HP) | 1/2 |
| Oil reservoir capacity (gallon) | 200 |
| Machine size LXWXH (m/m) | 2900x2350x4000 |
| Net weight approx (kg) | 13000 |
How Han Chang matches the HCR machine to rubber production
When Han Chang recommends an HCR rubber injection machine, the discussion starts from the actual production target: part weight, runner weight, mold cavities, compound hardness, clamping demand, vent groove design, curing time and how the part leaves the mold. These items decide whether the customer needs a compact machine, a mid-range production machine or a larger HCR model.
The injection unit must match part weight, runner weight and cavity count, so each cavity fills fully without creating unnecessary flash.
Mold size, mold weight, platen area, daylight and stroke decide whether clamping and demolding will be smooth enough for daily production.
NBR, EPDM, FKM and natural rubber have different flow and curing behavior; pressure, flow, temperature and curing time should be set for the real compound.
Feeding, mold movement, demolding and inspection are arranged around the HCR machine action. After mold trial, the recorded shot volume, pressure, flow, curing time and demolding settings give the production team a repeatable operating recipe for regular orders.
- Part drawing with sealing surface, parting line, tolerance, part weight and runner-weight estimate.
- Rubber compound such as NBR, EPDM, FKM or natural rubber, plus Shore hardness and curing behavior.
- Mold size, mold weight, cavity count, vent-groove layout, runner balance, daylight requirement and demolding method.
- Trial record with shot C.C., material temperature, three-stage pressure, four-stage flow, curing time, demolding action and machine alarms if any.
After-sales service, imported components and export support
Han Chang supports HCR customers through the full machine service cycle. Service support covers model selection, installation discussion, operating guidance, machine-status review, online technical diagnosis and replacement-part coordination.
Taiwan and Mainland China service teams can support customers by case. Applicable configurations can use imported key components such as Mitsubishi PLC, Fuji Electric touch panel and Japanese-brand oil seals, giving customers stronger confidence in control stability, maintenance judgment and long-term machine operation.
Han Chang can review hydraulic pressure, injection unit movement, clamping action, heating control, PLC parameters, sensors, valves, oil seals and operation videos online, then guide machine adjustment or replacement-part coordination.
Mitsubishi PLC, Fuji Electric touch panel and Japanese-brand oil seals can be used in applicable configurations so operators have clearer parameter control and maintenance teams have a more stable replacement-part path.
When the machine has abnormal pressure, unstable injection, heating deviation, PLC alarm, clamping movement, oil-hydraulic action or sensor issues, Han Chang can review settings, photos and operation videos online before arranging parts or further service.
CE certification is available for export projects when required. Han Chang can coordinate the selected machine configuration, electrical specification and documentation scope so customers prepare export machine files more efficiently.
HCR Rubber Injection Molding Machine for O-Rings, Oil Seals and Gaskets FAQ
What products is the HCR rubber injection molding machine suitable for?
HCR is suitable for O-rings, oil seals, gaskets, dust boots, damping parts and industrial rubber sealing components that need controlled filling, low flash, clean sealing surfaces and dependable daily production.
How do I choose between HCR-500, HCR-1000, HCR-1500, HCR-2000 and HCR-4000?
Choose by shot C.C., part weight, runner weight, mold size, mold weight, cavity count, clamping force, daylight, curing time and demolding method.
What is the value of three-stage pressure and four-stage flow?
They let the operator tune filling, venting, packing and holding separately for different compound hardness, part thickness, runner layouts and cavity balance.
What information should I send before quotation?
Send drawings, compound type, Shore hardness, part weight, runner layout, mold size, cavity count, target output and machine-service requirements such as voltage or export documentation.
Can HCR process silicone compound?
HCR can be configured for rubber and selected solid-silicone elastomer projects, but silicone production should be reviewed by material grade, mold temperature, cleanliness and demolding requirements.
Why choose Han Chang HCR equipment?
Han Chang provides HCR model selection, machine configuration review, Taiwan and Mainland China service teams, online machine diagnosis, imported key components such as Mitsubishi PLC, Fuji Electric touch panel and Japanese-brand oil seals, and CE certification availability for export projects.
