How to choose PVC injection molding machine manufacturers, this issue needs to be considered from several aspects:
- Inspect the manufacturer’s qualification and industry reputation
- The basic requirements for injection molding machines
- General Criteria for machine manufacturers
- Comprehensive Selection Recommendations
To select a PVC injection molding machine manufacturer, consider factors like machine reliability, precision, technological advancements, customer support, cost-effectiveness.
And customization options. Evaluate the manufacturer’s reputation, review customer feedback, and assess their responsiveness to inquiries.
Inspect the manufacturer’s qualification and industry reputation
- Qualification certification
- Market feedback Customer case
- Industry ranking
Qualification certification
International certification
CE certification (Guangdong Jiaming, Zhejiang Shenda), ISO9001 (HUARONG, Tederic).
Patents and technology
Shandong Dongxin has 20 national patents, and Zhejiang Shenda FJ series has won the “Zhejiang Manufacturing Boutique”.
Market feedback Customer case
Shandong Dongxin provided equipment for the rural sewage project in Yanggu County and cooperated with Xinfa Group.
Jiangmen Huilong’s customers include Huangshan Yongxin and India’s U-FLEX.
POWERJET’S PET PREFORM MACHINE ENTERS THE GLOBAL SUPPLY CHAIN OF THE FOOD AND BEVERAGE INDUSTRY.
Industry ranking
Tederic and POWERJET are among the top 10 in China’s injection molding machine exports.
Guangdong Garmin was awarded the “Guangdong Famous Brand Product”, and HUARONG has a leading market share in Taiwan’s plastic machine.
The basic requirements for PVC injection molding machines
- Screw and barrel design
- Temperature control
- Mechanical Properties
- Special features
- Material Handling
Screw and barrel design
The screw and barrel should be of PVC-specific grade to ensure the stability and heat resistance of the material.
Then,the length-diameter ratio of the screw is best 20:1, and the compression ratio is between 1:1.6~1:2.5.
In reality,the screw and nozzle should be made exclusively of PVC with chrome plated to prevent corrosion.
Temperature control
Injection pressure, velocity, back pressure, and temperature require multi-stage control to accommodate PVC materials’ sensitivity to temperature.
Besides,the mold temperature should have a cooling water control device to ensure that the mold temperature is controllable between 30°C~60°C.
Mechanical Properties
The machine must ensure the safe production of PVC pipe fittings.
Install a strict temperature control system on the injection molding machine.
Then,install a safety gate device on top of the injection molding screw and hopper.
Use non-welded tubing flaring joints to effectively prevent oil leakage.
Special features
Equipped with two sets of core pulls, more groups can be selected, the hydraulic oil circuit can be configured on demand.
The mechanical mold opening brake is stable, the high and low pressure switching is stable.
The impact force is low, the machine hinge is more durable, and the repeatability of mold opening is 0.1mm.
Equipped with servo energy-saving motor, high return on investment.
Material Handling
PVC material needs special treatment, such as drying treatment, the temperature is controlled at 75-90°C, and the time is 1.5-2.5 hours.
While,the injection pressure is 80MPa~160MPa, and the holding pressure is not more than 30MPa.
General Criteria for PVC injection molding machines manufacturers
- After-sales service
- After-sales service response speed
- Technical support
- Spare parts supply
After-sales service
Choose a manufacturer that offers good after-sales service.
Such as Dekumar, which provides after-sales service support worldwide.
After-sales service response speed
HUARONG and POWERJET provide global service teams; Guangdong Garmin has branches nationwide.
Technical support
Shandong Dongxin provides mold development – process control integration services.
Zhejiang Shenda is equipped with CNAS certified laboratory.
Spare parts supply
Tederic and HUARONG promise 24-hour spare parts support.
Comprehensive Selection Recommendations
- Define requirements
- On-site inspection
- Costing
- Solution
Define requirements
Engineers select models based on product size (e.g., clamping force range), output (e.g., equipment capacity).
And material characteristics (e.g., whether the application requires recycled material compatibility)
On-site inspection
Focus on verifying the manufacturer’s equipment parameters (such as temperature control accuracy), production workshop scale and quality inspection process.
Costing
Compare equipment prices, energy consumption (e.g., servo energy-saving models can reduce long-term costs) and maintenance costs.
Solution
Suppliers with continuous technology upgrading capabilities (e.g. all-electric injection molding technology) and flexible service solutions are preferred.
Haichen PVC Injection molding machine
To choose an injection molding machine manufacturer for PVC, consider factors like the manufacturer’s expertise with PVC.
Their quality control systems, their capacity to meet your production needs, and their communication practices.
Ensure they have the necessary technology and equipment to handle your specific project requirements.
You can contact haichen at any time to get the information you want to know.
We are more than happy to help you.
