Solid Silicone Injection Molding Machine
Han Chang’s solid silicone injection molding machine produces keypads, sleeves, sealing plugs and grips. Operators supply solid silicone strips; a screw feeds and preplasticizes the compound, and an overhead hydraulic plunger injects it into a closed mold. After heat curing, the mold opens for manual part removal.
Machine advantages
For factories working with solid silicone compounds, this machine provides a strip-fed injection route with staged pressure and flow control and mold venting. Select the equipment around your material, part geometry and tool—not clamping force alone—to align shot capacity, mold fit and operator access.
An injection route for solid compound
A screw prepares the silicone strip before the hydraulic plunger delivers compound into the mold. This gives solid-silicone processors a clear injection equipment choice built around their material format and tooling.
Control filling and mold movement
Three pressure stages and four flow stages apply to both injection and the overall hydraulic cycle. Adjust these conditions to suit compound flow, runners and differences in part wall thickness.
Venting alongside the mold design
Mold-opening and closing venting provides an additional way to address trapped gas. For multi-cavity keypads and thin sleeves, plan this action together with tool vents and gate locations.
Match curing with practical part removal
Silicone cures in the heated mold before the operator removes the parts. Compound cure conditions, wall thickness and release direction guide tool and machine selection, including working space for flexible sleeves and keypads.
Solid silicone injection and curing process
Load solid silicone strip
The operator supplies solid silicone strips at the feed position. Choose the compound grade, hardness and color for the finished part, with the feed dimensions suited to the selected machine.
Feed and preplasticize
The screw conveys and preplasticizes the compound in preparation for plunger injection. Shot demand includes every cavity and the runners, rather than the weight of one part alone.
Inject into the closed mold
The overhead hydraulic plunger injects silicone into the already closed mold. Staged pressure and flow control support injection and hydraulic movements; mold-opening and closing venting is also available.
Heat cure and remove parts
The silicone cures in the mold, which then opens for manual removal. Mold opening and release direction must provide workable access for the part geometry; trimming or inspection follows as required.
Materials and solid silicone part applications
Keypads and electronic components
Use this machine for silicone keypads, protective sleeves and sealing plugs. Keypad thickness changes, sealing surfaces, cavity layout and gates inform the shot-volume, filling and venting requirements.
Sleeves, grips and ear plugs
Solid silicone can form soft protective, contact and gripping components. Match hardness, wall thickness, visible surfaces and release direction to the tool and machine, rather than solving every tooling need with more tonnage.
Compound grade and end-use requirements
This equipment processes solid silicone. Share the grade, Shore hardness and color standard to define the molding requirements. Food-contact, infant-care or medical parts additionally require suitable materials, process controls and finished-product validation; the machine itself does not establish product certification.
Specifications and machine selection
Compare the five model tables for clamping force, platen dimensions, stroke, maximum shot volume and strip dimensions. Start with tool fit and total shot demand, then match the machine footprint, electrical supply and working space to your factory.
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 |
Shot capacity in C.C. is a volume, not the same number of grams. Include all cavities and runners and use the compound density when relating shot weight to volume. Mold thickness, mounting dimensions, opening travel and the removal method also affect the equipment choice.
Tooling and equipment quotations
Send a silicone part drawing or photo with the compound grade and hardness. If a mold already exists, add its dimensions, cavity count and total shot demand so Han Chang can compare suitable injection capacity, clamp force and platens.
Equipment price depends on the model and supply configuration. Tool mounting, feed and removal arrangements, factory power and installation space help define that scope. If the tool is still in development, begin with part dimensions and planned output.
Buyer questions
Is this a solid silicone machine or an LSR machine?
This is a solid silicone injection molding machine using manually supplied strip, screw feeding and preplasticizing, and hydraulic plunger injection. Liquid silicone rubber (LSR) typically uses A/B component metering and mixing. Identify the actual material format before choosing the equipment.
Which silicone parts can it produce?
Applications include silicone keypads, sleeves, sealing plugs, grips and ear plugs. Match the mold and machine to the part drawing, compound hardness, wall thickness, cavity count and release method. Specialized end uses also require appropriate material and product validation.
What pressure, flow and venting controls are provided?
Both injection and the overall hydraulic cycle have three pressure stages and four flow stages. The machine also has mold-opening and closing venting. These controls are matched to the compound, runners, cavities and part geometry to adjust filling and mold movement.
How should I compare shot capacity and clamping force?
Calculate the total material for all cavities and runners, then relate weight to volume using compound density. Clamping force also depends on projected tool area and molding pressure. Check platen dimensions, mold thickness, stroke and removal space rather than selecting tonnage by cavity count alone.
How does solid silicone injection differ from compression molding?
This machine preplasticizes the compound and uses a plunger to inject it into an already closed mold. Direct compression molding places the compound in the mold before closing and pressing. The feed method, runners, tooling and operator tasks differ, so compare them against your material, parts and existing tools.
What information is needed for a machine quotation?
Start with part photos or drawings, silicone grade and hardness, part weight and planned output. If available, include mold dimensions, cavity count, runner material and removal method, plus the local supply voltage. Han Chang can then outline an appropriate model and supply configuration.
Choose equipment for your solid silicone parts
Send Han Chang a part drawing or photo to begin. Compound grade, hardness, cavity count and shot demand—where available—help us recommend a suitable solid silicone injection molding configuration and prepare your quotation.
