Preparing an injection molding shop for the cold winter months requires both practical and strategic measures to ensure the machines and processes run efficiently despite the drop in temperature. Here are suggestions of actions you can take now.
1. Temperature Control
Inspect doors, windows, and walls for drafts and seal any gaps to retain heat. Ensure your heating system is serviced and functioning properly to maintain a consistent temperature in the shop. Consider installing space heaters or localized heating systems to keep machines at optimal operating temperatures. Follow all safety precautions when using space heaters.
2. Equipment Preparation
Switch to cold-weather lubricants for machines, as standard lubricants can thicken in colder temperatures, causing equipment to run less efficiently. Give machines extra warm-up time before starting production, especially on colder days. Cold temperatures can cause hydraulic fluids to become more viscous. Inspect hydraulic systems for leaks and service them to ensure they are ready for colder conditions.
3. Material Handling & Storage
Store raw materials in climate-controlled areas to prevent moisture absorption and changes in physical properties. Resins absorb moisture during colder months, so ensure proper drying before molding to avoid defects in the final product. Materials should be at a consistent temperature when fed into the machines. Cold materials can affect molding quality and cycle times.
4. Air System Maintenance
Air compressors should be checked for any signs of moisture accumulation, as cold air increases the chances of condensation, which can lead to freezing and damage. Ensure air dryers and filters are functioning properly to remove moisture from compressed air systems. If the relative humidity is low, have products on had to detect and neutralize static electricity.
5. Cooling Systems
Review coolant systems for proper antifreeze levels, especially if the system uses water-based coolants. Insulate coolant lines and pipes that are exposed to cold air to prevent freezing and bursting. Ensure that mold heating systems are working efficiently, as cooling the molds too quickly due to cold temperatures can lead to part defects.
6. Energy Efficiency
Consider insulating machines to retain heat, and use programmable thermostats to manage shop heating and cooling efficiently. Close doors quickly after deliveries and use barriers or air curtains to minimize heat loss. Contain and conserve barrel heat with IMS Exclusive UniVest® Barrel Insulation System. Barrel bands promote faster machine start-up and stop barrel heat fluctuations
7. Employee Safety & Comfort
Ensure employees have access to warm clothing and personal protective equipment suited for cold conditions. With snow and ice outside, ensure walkways are cleared and non-slip mats are installed at entry points to prevent accidents.
8. Planning for Delays
Anticipate delays in deliveries due to winter weather and stock up on essential materials and spare parts to minimize downtime. By taking these steps, you can help ensure that your injection molding shop operates smoothly and efficiently during the cold winter months.
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