Process Cooling for Injection Molding | APT Group

Injection Molding Process Cooling

Engineering Process Applications | Precision. Stability. Efficiency.

In plastic injection molding, cooling accounts for 60% to 80% of the entire cycle time. APT Group specializes in thermodynamic engineering to provide a “Constant Temperature, Pressure, and Flow” environment, optimizing molecular chain behavior for superior product quality.

Industrial Injection Molding Workshop Cooling System

Industrial Insights & Challenges

Shrinkage Compensation

Materials like PP, PC, and ABS exhibit diverse shrinkage rates. APT ensures micron-level dimensional stability by compensating for thermal contraction through ultra-precise temperature regulation.

Heavy-Duty Reliability

Designed for 24/7 continuous operation, our chillers feature industrial-grade redundancy to eliminate unexpected downtime in high-volume production lines.

Hydraulic & Mold Synergy

Modern precision molds feature tortuous cooling channels. We optimize Head Pressure to ensure high-velocity coolant penetration for uniform thermal balance.

Technical Specifications

Core Configuration	APT Engineering Standards	Processing Advantages
Compressor	Premium Bitzer/Copeland Scroll or Screw types.	Optimized for eco-friendly refrigerants; 15% higher COP than industry standards.
Circulation Pump	Stainless steel multi-stage centrifugal pumps.	3.5Bar to 5.5Bar+ high head pressure for deep-cavity mold penetration.
Heat Exchanger	High-capacity Shell-and-Tube / Blue-fin designs.	20% larger surface area; anti-fouling and easy-to-clean in dusty industrial environments.
Control Interface	Intelligent PLC with Multi-channel Monitoring.	±0.1°C precision; supports dual-loop cooling for mold and hydraulic oil simultaneously.
Ambient Adaptation	T3-Rated High-Ambient Design.	Stress-tested for stable operation in extreme 50°C tropical factory conditions.

Application Scenarios

Portable Chillers

Flexible deployment for standalone machines (3HP – 15HP). Ideal for high-transparency optical lens molding requiring rapid stabilization.

Central Cooling Systems

Equipped with variable frequency technology (20HP – 90HP+) to adjust energy consumption based on real-time plant load.

Cleanroom Grade Solutions

Stainless steel piping and closed-loop systems designed for medical and food-grade packaging injection molding.

Proven Performance

+18%

Precision Electronics (PC/ABS)

A Tier-1 OEM reduced cycle time from 22s to 18s for smartphone chassis molding, significantly boosting daily throughput.

-4%

Automotive Components (Large Parts)

APT high-pressure cooling eliminated sink marks on 1.5m bumpers by ensuring uniform flow velocity across the mold face.