Seiki – LSR and Runner less Rubber Moulding System
Runner less Rubber Moulding Machine
Being at the forefront of thermoplastics runner less system maker, Seiki makes full use of their accumulated technology and developed the rubber injection molding system. Something which had never been accomplished before.
Operating cycle
Structural drawing
Features:
- A perfect runner less molding system avoids any runner waste. Material cost, scrap fee, secondary man-hour can be greatly reduced. This ecological environment-conscious system will greatly lighten your responsibility for the industrial waste.
- It is available for all kinds of rubber material.
- It features simple construction. This maintenance-free system can be applied not only to new molds but also for the existing molds as an easy retrofit.
- Its pneumatic drive system cost very low to run the system.
- It is possible to do nozzle-touch molding. It avoids drooling at the nozzle and avoids scorching trouble at the nozzle-touch.
- Gate position and gate size can be selected at will. By its active gate-shut-off mechanism, gate size can be selected at will to realize the minimum pressure loss.
- The touch panel controller realizes high operational performance. It features a real indication of each action which enables easy process observation.
Seiki – Hot Half
Hot Half
This Hot half package includes all hot runner parts (clamping plate, spacer block, back plate, connector box), excluding cavity plate. Specified to suit the user’s individual needs.
Perfect for helping lighten the company’s workload with a speedy delivery.
Features
- A design inclusively for both the mould and hot runner in a speedy and reliable manner.
- An optimized hot runner design specifically for the molded part in full consideration of rigidity, flow balancing, temperature uniformity.
- The Hot half comes ready to bolt directly onto the cavity plate for sampling.
Capabilities and services
-
- Hot runner
- Manifold, probes, heaters, etc.
-
- Mold plates
- Clamping plate, spacer block, back plate,
-
- Connector box
- Connector box, wiring diagram
-
- Miscellaneous
- Maintenance work for Hot runner
Seiki – Manifold
Our manifold features
- Superb energy savings with its weight minimized but without compromising the main functions.
- Temperature uniformity
- No dead spot in the flow path.
Seiki – Controller
Controller
Outline of controller
It features user-friendly hot runner operation and a high degree of accuracy. S2000 controller can be monitored/controlled through a Windows PC by adapting optional elements such as the signal tower, switch box, big-screen entry unit, PC connection module. Moreover, it is possible to centrally control more than one controller through one PC. it is also possible to put temperature and output current on record (CSV format) by means of its logging function.
Controller line-up
-
- Series S2000
- User-friendly Windows, like a drop-down menu with a large display.
- In compliance with CE Standard, it is designed to resist disturbance noise while it doesn’t emit radiated noise.
- Current Closed Loop Control and Voltage Compensation Circuit contribute to stable molding regardless of the power condition.
- Detailed pdf Information
-
- Series VMC
- User-friendly LCD touch panel
- In compliance with EMS/EMI (European Norm), it is designed to resist disturbance noise while it doesn’t emit radiated noise. It is advantageous to operation with an electric molding machine.
- Soft Pulse Output Control is featured. It enables steady molding operation while protecting heaters from surges.
- Detailed pdf Information
-
- Series AHC
- AHC compact controller is specifically for small-cavity-number molding (up to 4 point gate)
- Features reinforced functions, an increased endurance of harsh operation environment.
- Detailed pdf Information
-
- Series ACS8 II
- The LCD touch panel makes checking and the modification of settings easy. It enables to get a grasp on the operation conditions readily available.
- O/C on the PLC direct drives the Solenoid valves. This system uses no relay, therefore, it enables to prevent the Solenoid valves from a malfunction caused by contact fault.
- Bigger air supply hose. Pneumatic circuit configuration stabilizes the open/close operation of the valves.
- Detailed pdf Information
Seiki – Spear System
Spear System
The spear has a double heater structure consisting of a tip heater and a body heater.
The spear tip has been modified to directly heat itself.
There are a large variety of spears available to accommodate different resin types and applications.
Principle and Features of Spear System
Spear probe has long service life because of its thermal valve principle having no sliding part.
The resin at the sprue and runner is kept molten to maintain constant fluidity. Depending on the temperature of the gate land and a die, a very small amount of the resin solidifies along with the resin inside of the cavity.
After the molded product is removed, the spear tip is heated up to instantly melt the solidified resin at the gate land just before the next injection.
Overall structure of Spear System
Spear System consists of a spear (embedded into the die), a manifold, and a controller for output (temperature) control.
Spear System lineup
-
- Series G
- External heating system contributes to a high injection rate.
- Suitable for multi-colored products.
- Suitable for Super engineering plastics.
- Detailed pdf Information
-
- Series D
- Suitable for a wide range of the molding operations from small products to large products.
- Suitable for multiple cavity moldings.
- Suitable for general engineering plastic.
- Detailed pdf Information
-
- Series SPT
- The newly-developed external heating topless probe is equipped with a tip heater.
- It is best suited for molding high-function plastics for extremely small mechanical parts.
- It can be used for multiple cavity moulds as well, taking advantage of its compactness of minimum 7mm pitch.
- Unlike a conventional block method, gate layout can be arranged flexibly.
- Applicable to small parts molding, as small as using a 15t machine.
- Product being updated. Pdf information to be announced.
-
- SeriesESN
- Minimum resin content and first-in-first-out flow path prevent the resins from deterioration and contamination.
- Tip replacement between several types is available to suit to the resin.
- Product being updated. Pdf information to be announced.
-
- Series ESXL
- Specifically for side gating.
- Best suited to medical parts.
- Product being updated. Pdf information to be announced.
-
- Series SI
- Multiple tip style; a cluster of 8, 12, or 16 tips on one block body.
- Close pitch (15 mm) can be processed.
- Multiple cavity molding can be easily processed.
- Detailed pdf Information
Seiki – Valve Gate System
About the Valve Gate System
Mechanical Valve Gate System incorporates a valve pin activated by pneumatic drive. We have full-line of valve gate including options, with the length up to 400mm, gate size of 0.8 – 8.0mm. Various kinds of valve gate in accuracy and function are available. Depends on application, valve gate with tip heater is available, too.
Principle and Features of Valve Gate System
With its topless structure, the gate is machined directly into the cavity, which is advantageous to cooling effectiveness and transcription of pin diameter. In case of valve equipped with separate tip heater located at its front-end, the tip heater can heat synchronously with the molding cycle to employ intermittent heating. This unique function facilitates the molding of the crystalline resins.
Overall structure of Valve Gate System
The system consists of valve gates, manifold (assembled inside the mold), temperature controller, air controller and air source in the factory to activate the valve pins.
Valve Gate System lineup
-
-
- Series SVP(F)
- Suitable for a wide range of molding process using commodity resin to super engineering plastic.
- Addition of the Tip heater system (optional) makes this valve to be very effective for molding reinforced resins and crystallized resins (PET pre-form).
- Detailed pdf Information
-
- Series SV32F
- Available to minimum 32 mm gate pitch.
- A unique guiding mechanism is equipped to guide valve pin.
- Best suited to mold commodity resin and commodity engineering plastic (POM, PC, ABS, PA, etc.)
- Detailed pdf Information
-
- Series SV25F
- Suitable for a wide range of molding process using commodity resin to commodity engineering plastic.
- It accommodates multi cavity with small pitch molding 25mm – the smallest pitch among SV series.
- It works for reinforced resins, too.
- The combination of its air drive system and guiding mechanism prevents the gate and the pin from wear and tear or damage.
- Air drive system provides easy handling and maintenance.
- Detailed pdf Information
-
- Series SVPL
- This modified SVP type is exclusively for direct center gating application (single cavity molding). With using a manifold, it works for multi molding as well.
- Product being updated. Pdf information to be announced.
-
- Series SVY / Simple-flow
- No splitting flow occurs inside the valve because the pin does not hinder the melt flow.
- Minimized pin deformation keeps the pin accurately in line with the gate.
- Detailed pdf Information
-
-
- Series CVN
- Features high cost performance.
- Specifically for molding commodity resin.
- Features simple structure.
- Product being updated. Pdf information to be announced.
-
- Series SMV
- This new compact valve gate system realizes thin stationary side height of 120mm, being applicable to 15t―50t of machine’s clamping force capacity.
- Applicable to super engineering plastic molding.
- It is equipped with a tip heater as its standard function, which facilitates the optimum molding condition for molding such as filler-contained plastics.
- The combination of its air drive system and guiding mechanism prevents the gate and the pin from wear and tear or damage.
- Air drive system provides easy handling and maintenance.
- Detailed pdf Information
-
- Series SVPR
- Slim size of 9mm in front-portion diameter.
- Gate size available from 0.8 to 1.2mm.
- Product being updated. Pdf information to be announced.
D5 Creation