What are the functions of hybrid injection molding machine?

Hybrid injection molding machine is a plastic molding equipment that combines the dual technologies of hydraulic drive and electric drive. It optimizes the advantages of the two power systems, while ensuring high clamping force, improving energy efficiency and precision, and is widely used in the production of precision plastic products.

1. Core features of hybrid injection molding machine

(1) Hydraulic + electric hybrid drive Hydraulic part: responsible for actions with high pressure requirements (such as clamping, pressure holding), ensuring sufficient clamping force. Electric part: uses servo motor to control precision actions (such as injection, screw plasticization), improving response speed and repeatability.

• Energy saving and high efficiency Compared with traditional hydraulic presses, energy consumption is reduced by 30%~60% (the hydraulic system is only started when necessary). It is lower in cost than all-electric motors and is suitable for upgrading small and medium-sized enterprises.

• High precision and stability Electric control reduces hydraulic fluctuations, and the product size is more stable, suitable for precision injection molding (such as electronic connectors, medical components).

2. Hybrid injection molding machine vs. traditional injection molding machine

3. Features of hybrid injection molding machine

Improved Production Efficiency

Servo motors drive key movements (such as mold opening and closing, injection molding, etc.), resulting in faster response and shorter molding cycles than traditional hydraulic presses.

Optimized energy distribution reduces idle time and increases production output per unit time.

Energy Saving and Cost Reduction

The hydraulic system activates only when needed (such as during the pressure holding phase), avoiding the energy waste associated with the continuous oil supply of a full hydraulic press.

Compared to traditional hydraulic presses, energy savings can reach 30%-60%, significantly reducing electricity costs over long-term use.

Improved Product Precision and Stability

Electrically controlled components (such as injection molding and screw rotation) offer high precision, minimizing the impact of hydraulic fluctuations on the product.

Suitable for the production of demanding products such as precision electronic components and medical devices.

Reduced Operating Costs

Energy savings reduce electricity costs, while maintenance costs are lower than those of a full hydraulic press (hydraulic oil changes are less frequent).

The low failure rate reduces downtime losses.

Adaptable to Diverse Production Needs

Combining the high clamping force of a hydraulic press with the precise control of an electric motor, this press is suitable for complex processes such as thick-walled products, engineering plastics, and multi-color injection molding.

Parameter adjustment allows for flexible adaptation to different materials (such as PP, ABS, and PC).

Environmentally Friendly

Reduced hydraulic oil usage and leak risk reduce waste oil disposal costs.

Noise and heat emissions are lower than traditional hydraulic presses, improving the workshop environment.

4. Maintenance Guide for Hybrid Injection Molding Machine

Daily maintenance (every shift/day)

• Hydraulic system inspection

Hydraulic oil status: Observe whether the oil level is within the standard range and whether the oil is clean (no impurities, emulsification or discoloration).

Oil temperature control: Ensure that the oil temperature is between 30 and 50°C (too high will accelerate oil aging, and check whether the cooler is working properly).

Leakage check: Check whether the oil pipes, joints, and seals are leaking, and tighten or replace them in time.

• Electrical system inspection

Servo motor and drive: Check whether the cooling fan is normal and remove dust; observe whether there is any abnormal noise or overheating.

Cables and connectors: Ensure that there is no looseness, wear or aging (especially frequently moving parts).

• Lubrication and cleaning

Guide rails and slides: Add grease (such as lithium-based grease) daily to prevent dry friction.

Mold area: Clean residual plastic and oil to prevent impurities from affecting mold clamping accuracy.

Regular maintenance (weekly/monthly)

• Hydraulic system deep maintenance

Filter replacement: Check the hydraulic oil filter every month and replace it immediately if it is seriously clogged (it is recommended to replace it every 2000 hours or according to the manufacturer's requirements).

Oil testing: Take samples every six months to test the oil viscosity and acid value, and replace with new oil if necessary.

• Mechanical component inspection

Belts and couplings: Check the tightness to avoid slipping or breakage (electric drive part).

Screw and barrel: Clean the residual plastic and check the screw wear (if there is scratches or corrosion, repair it).

• Safety device testing

Emergency stop button: Regularly test whether the function is sensitive.

Safety door and interlock device: Ensure that the protection of the mold area is effective.

3. Long-term maintenance (quarterly/yearly)

• System calibration

Injection pressure and position: Use pressure sensor to calibrate to ensure the accuracy of parameters.

Mold parallelism: Check once a year to avoid deformation of the mold plate due to uneven loading.

• Replacement of key components

Seals: Replace the seals of hydraulic cylinders and valve blocks every 1-2 years (to prevent aging and leakage).

Servo motor encoder: Check signal stability and clean or replace if necessary.

• Cooling system maintenance

Water cooler/air cooler: Clean the heat sink to prevent clogging (water coolers require regular descaling).

4.Common faults and prevention