PE PP ABS PS Eco Friendly Air Cooling Waste Film Recycling Machine

An air-cooled granulator is a molding device that achieves melting, extrusion, and granulation of materials through forced air cooling. It is widely used in industries such as plastics, rubber, chemicals, and food processing—for example, in recycled plastic pellet production, modified plastic manufacturing, and food additive granulation.

Core Advantages (Ranked by Practicality Priority)

1. High Efficiency, Energy Saving and Low Operating Costs

• High cooling efficiency: Forced air cooling is synchronized with granulation, eliminating the need for water circulation systems (water tanks, pumps, cooling towers, etc.) required by water-cooled granulators. The cooling process is direct and fast, with particle forming time typically 1–3 seconds. Production efficiency is 10%–20% higher than that of water-cooled models.

• Lower energy consumption: It only requires blowers to supply cold air, without the energy consumption of water circulation systems. The power consumption per unit output is 30%–50% lower than water-cooled granulators. (For plastic granulation as an example, air-cooled models consume about 15–25 kW per hour, while water-cooled ones consume 25–40 kW per hour.)

• Low maintenance costs: There is no risk of water pipe blockage or scale buildup. The only wearing parts are cutters and die heads, which require minimal maintenance frequency. Annual maintenance costs can be reduced by 20%–40%.

2. Superior Particle Quality and Wide Application Range

• Excellent particle uniformity: Cold air wraps the extruded materials evenly from all sides, ensuring consistent cooling speed. This avoids particle deformation, adhesion, and surface moisture caused by uneven cooling in water-cooled granulators. The particle size deviation is ≤±0.1 mm, with smooth, burr-free surfaces.

• No secondary contamination risk: The air-cooling process does not involve water contact, eliminating the need for post-drying treatment (water-cooled pellets require drying to remove surface moisture, otherwise they tend to clump or mold). It is especially suitable for moisture-sensitive materials such as modified plastics, food additives, and pharmaceutical intermediates, preventing material deterioration due to moisture absorption.

• Versatile material compatibility: It can process various materials with melting points ranging from 80℃ to 300℃, including general-purpose plastics (PE, PP, PVC, ABS), engineering plastics (PA, PC, PBT), as well as rubber, hot melt adhesives, feed, and fertilizers. It has better adaptability than water-cooled granulators, which are less suitable for high-temperature and water-absorbent materials.

3. Compact Structure and Flexible Installation

• Small footprint: No additional water circulation pipelines are needed, resulting in a compact overall structure (usually 2–3 m in length, 1–1.5 m in width, 1.5–2 m in height). It saves over 50% of floor space compared with water-cooled granulators of the same capacity, making it ideal for workshops with limited space.

• Easy installation: No complex pipeline laying or foundation construction is required. It can be placed on flat ground and put into production quickly after being connected to power. The installation cycle is 60%–80% shorter than that of water-cooled models (water-cooled granulators need 1–2 weeks for installation and commissioning, while air-cooled ones only need 1–2 days).

• High mobility: Small air-cooled granulators can be equipped with casters, allowing flexible adjustment of placement according to production needs and adaptation to multi-production line switching.

4. Environmental Friendliness, Safety and Simple Operation

• Environmentally friendly and pollution-free: No cooling water discharge is required (water-cooled granulators need regular wastewater discharge, which may cause pollution due to material residues). Only a small amount of dust is generated, which can be treated with supporting dust collectors. It meets environmental discharge standards and reduces the environmental pressure on enterprises.

• Safe operation: The cooling process does not involve contact with high-temperature water, avoiding risks such as pipeline leakage and personnel scalding that may occur with water-cooled models. The equipment is equipped with safety devices such as overload protection, temperature monitoring, and emergency stop buttons. It has a low operation threshold, and ordinary workers can take up the job after simple training.

• High automation level: It can be equipped with auxiliary equipment such as automatic feeders, sieving machines, and silos to realize the fully automated process of "feeding–extrusion–granulation–cooling–sieving–discharging", reducing manual intervention and labor costs.