
I. Definition and Structure
Vertical C-Type Injection Molding Machine (C-type for short): Vertical clamping + horizontal injection. The clamping area has no guide pillars, and the frame is C-shaped, open on three sides.
• Clamping: Vertical direct pressure, no guide pillars, C-shaped steel structure integrally molded, good rigidity, and minimal deformation.
• Injection: Horizontal injection, dual-cylinder injection system, high injection speed and high pressure.
• Operating Space: Open on three sides, no pillar obstruction, extremely convenient for loading and unloading, and placement of inserts.
II. Core Features
1. Open Design without Guide Pillars: Large C-shaped opening, suitable for long molds, parts with wiring harness plugs, and large parts overmolding; convenient insertion/removal of inserts, suitable for automated production lines.
2. Stable Structure and High Precision: High-strength C-shaped frame, small bending moment deformation under high pressure; direct pressure clamping, dual-cylinder injection, injection error ≤0.5%, suitable for precision parts.
3. Small footprint and flexible layout: Saves space compared to horizontal machines; the control panel can be switched between left and right, adapting to workshop IE planning.
4. High efficiency and energy saving: Equipped with a servo system, energy savings can reach 50%; optional dual slide plates (1 upper mold and 2 lower molds), increasing production capacity by 30%+.
5. Wide adaptability: Clamping force 50–200 tons, wide injection volume range; can process PVC, TPE, EPDM, LSR, and engineering plastics.
III. Typical Applications
• Power plugs: Safety standard plugs for various countries (French, American, British), plugs with tail wires coated.
• Precision electronics: Connectors, terminals, metal inserts injection molding, mobile phone accessories.
• Automotive parts: Seals, connectors, small structural parts, wire harness coating.
• Others: Small household appliances, medical accessories, daily necessities, large metal coating.
IV. Common Specifications (Reference)
• Clamping Force: 50T, 85T, 120T, 160T, 200T
• Injection Volume: 50–500g (Customizable)
• Configuration: Servo energy saving, dual proportional hydraulic circuit, Chinese/English electronic control, adjustable injection unit height.
V. Comparison with Traditional Models
• vs. Vertical Guide Pillar Machine: No guide pillars, larger space, easier insert operation, suitable for long molds/wire harness parts.
• vs. Horizontal Machine: Smaller footprint, stable vertical clamping and inserting, easy part removal, more cost-effective for small precision parts.
VI. Key Selection Points
1. Clamping Force and Injection Volume: Select specifications based on product size, wall thickness, and material.
2. Insert Requirements: For frequent insert placement, choose C-type + double slide plate for improved efficiency and cost reduction.
3. Precision Requirements: For precision parts, choose servo + precision injection system with temperature control accuracy ±1℃. 4. Automation Adaptation: Interfaces are provided for robotic arms and conveyor belts to connect with production lines.






