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KH-CT
Honemix
For cosmetic manufacturers producing lipsticks, lip balms, foundations, and other molded products, the Lipstick Cooling Tunnel is an essential piece of equipment that ensures rapid, uniform cooling of product-filled molds. Designed for continuous operation, this cooling tunnel significantly reduces cycle times, improves product quality, and enables high-volume production with consistent results.
After the hot liquid formulation is filled into lipstick molds, the product must be cooled quickly and evenly to achieve the desired structural integrity, surface finish, and demolding characteristics. Traditional static cooling methods—such as refrigeration rooms or standing racks—are slow, inconsistent, and labor-intensive. Our freezing tunnel automates this critical step, providing precise temperature control and steady product flow to maximize production efficiency.
Constructed with SUS304 stainless steel and high-efficiency insulation, the tunnel maintains stable internal temperatures while minimizing energy consumption. The continuous conveyor system transports molds through the cooling zone, ensuring each product receives identical cooling exposure for uniform quality across every batch.
1. Rapid & Uniform Cooling
The freezing tunnel utilizes a high-performance refrigeration system that delivers consistently low temperatures (typically -10°C to -20°C or adjustable based on product requirements). Strategically positioned airflow channels ensure that cold air circulates evenly around all molds, eliminating hot spots and ensuring uniform cooling.
2. Continuous Production Flow
Designed for integration into automated lipstick production lines, the tunnel features a stainless steel mesh or roller conveyor that continuously transports molds from the filling station through the cooling zone and onward to the demolding station. This continuous workflow eliminates bottlenecks and significantly increases throughput.
3. Precise Temperature Control
The system is equipped with a PLC and HMI touch screen for precise temperature monitoring and adjustment. Operators can set and maintain specific cooling temperatures based on product formulations, with real-time feedback ensuring consistent conditions throughout production runs.
4. Adjustable Conveyor Speed
The variable-speed conveyor allows manufacturers to optimize cooling time based on product formulation, mold size, and ambient conditions. Slower speeds for larger molds or higher-viscosity products, faster speeds for smaller or standard formulations—full flexibility to match your production needs.
5. Energy-Efficient Insulation
The tunnel body is constructed with high-density insulation panels that minimize thermal loss, reducing refrigeration load and energy costs. This design also prevents condensation and maintains a stable internal environment.
6. Sanitary & Easy-to-Clean Design
Constructed from food-grade SUS304 stainless steel, the tunnel features smooth surfaces, rounded corners, and easily removable panels for thorough cleaning. The interior is designed to prevent product accumulation and facilitate quick sanitation between batches.
7. Safety Features
The system includes safety interlocks, emergency stop buttons, and temperature alarms to protect both operators and equipment. The exterior remains cool to the touch, preventing accidental burns during operation.
Mold Loading: Filled lipstick molds are placed onto the tunnel’s conveyor system, either manually or via automatic transfer from the filling machine.
Cooling Zone Entry: Molds enter the insulated tunnel where high-efficiency evaporators and fans circulate chilled air uniformly across the product surfaces.
Controlled Cooling: As molds travel through the tunnel, the temperature is maintained at the set point, ensuring that the lipstick formulations solidify evenly without surface defects, cracking, or shrinkage.
Exit & Demolding: After the designated cooling period, molds exit the tunnel at the desired temperature for smooth demolding. The solidified lipsticks retain their shape, color consistency, and structural integrity.
| Parameter | Specification |
|---|---|
| Machine Type | Continuous Lipstick Cooling Tunnel |
| Cooling Method | Forced air circulation with refrigeration system |
| Temperature Range | -20°C to +10°C (adjustable; customizable for lower temperatures) |
| Temperature Accuracy | ≤±2°C |
| Conveyor Type | Stainless steel mesh belt or roller conveyor |
| Conveyor Width | 400mm – 1000mm (customizable) |
| Conveyor Speed | 0 – 5 m/min (variable frequency drive controlled) |
| Cooling Length | 3000mm – 8000mm (customizable based on production requirements) |
| Residence Time | Adjustable (typically 10 – 40 minutes depending on product and mold size) |
| Refrigeration Unit | Hermetic or semi-hermetic compressor (brand options: Bitzer, Copeland, or equivalent) |
| Refrigerant | R404A / R507 / R448A (environmentally friendly options available) |
| Cooling Capacity | 5 kW – 20 kW (depending on tunnel length and temperature requirements) |
| Power Supply | 380V / 220V, 50/60Hz, three phase |
| Power Consumption | 8 – 25 kW (depending on configuration) |
| Machine Material | SUS304 Stainless Steel (interior and exterior) |
| Insulation | High-density polyurethane foam (50mm – 100mm thickness) |
| Control System | PLC + HMI Touch Screen (with temperature monitoring, alarm logging, and recipe storage) |
| Dimensions (L×W×H) | Varies by configuration (standard: approx. 5000 × 1200 × 1500 mm) |
| Optional Features | – Dual-zone temperature control - Automatic mold loading/unloading - CIP (Clean-in-Place) system - Data logging & SCADA integration |
This freezing tunnel is specifically designed for the cosmetic industry but can also be adapted for other molded products:
Lipstick & Lip Balm: All lipstick formulations—matte, satin, gloss, liquid lipstick molds.
Foundation Sticks: Solid foundation sticks and concealer sticks.
Deodorant Sticks: Solid deodorant and antiperspirant formulations.
Cream & Gel Molds: Products requiring rapid solidification after hot filling.
Optimized for Lipstick Production
Unlike general-purpose cooling tunnels, this system is designed specifically for the unique requirements of lipstick manufacturing—accommodating various mold sizes, product formulations, and production speeds.
Factory Direct Manufacturing
As a direct manufacturer, we offer competitive pricing with strict quality control. Each tunnel undergoes rigorous testing before shipment, ensuring reliable performance in demanding production environments.
Seamless Production Line Integration
The tunnel can be easily integrated with automatic filling machines, mold handling systems, and demolding equipment for a fully automated lipstick production line.
Superior Product Quality
Rapid, uniform cooling prevents surface defects such as sweating, crystallization, or shrinkage, resulting in lipsticks with smooth finishes, consistent color, and extended shelf life.
Energy-Efficient Operation
High-quality insulation and efficient refrigeration components minimize operating costs while maintaining precise temperature control.
Global Support
We provide comprehensive after-sales support, including installation guidance, maintenance training, spare parts availability, and lifetime technical consultation.
Q: What cooling temperatures are typical for lipstick production?
A: Most lipstick formulations require cooling temperatures between -10°C and -20°C to achieve proper solidification and demolding characteristics. However, temperatures can be adjusted based on your specific formulation requirements.
Q: How long do molds need to remain in the cooling tunnel?
A: Residence time varies based on product formulation, mold size, and cooling temperature. Typical ranges are 15–30 minutes. The adjustable conveyor speed allows you to optimize cooling time for your specific products.
Q: Can this tunnel be used for other cosmetic products?
A: Yes. While designed for lipsticks, the tunnel is also suitable for cooling foundation sticks, deodorant sticks, and other molded products that require rapid solidification after hot filling.
Q: How is the tunnel cleaned between batches?
A: The tunnel features smooth stainless steel surfaces, removable access panels, and an open design that allows for thorough cleaning. Optional CIP systems are available for automated cleaning.
Q: What is the typical production capacity?
A: Capacity depends on mold size, cooling time, and conveyor speed. A standard tunnel can process several thousand lipsticks per hour. We can provide detailed capacity calculations based on your specific requirements.
Q: What is the warranty?
A: The machine comes with a 12-month warranty covering manufacturing defects, with lifetime technical support.
