China Suppliers Factory Spin Finish Agent Steel Belt Granulator for Uniform, Dust-Free Pastilles Production
Product Video
Long Description
In operation, the molten spin finish agent—typically heated to 50–90°C depending on its wax or oil-based formulation—is pumped from a jacketed feed tank to a heated granulator head positioned above the moving steel belt. The head deposits precise droplets onto the belt’s surface, while a water circulation system continuously cools the underside of the belt. As the belt advances, the droplets solidify into hemispherical pastilles, which are then gently scraped off and discharged onto a packaging line or storage bin. The enclosed design and low-temperature operation minimize oxidation and fume release.
Spin finish agents present specific granulation difficulties: they often have narrow solidification windows, high viscosity at room temperature, and a tendency to smear or stick to surfaces if not rapidly quenched. Many formulations are tacky or semi-solid, causing conventional flaking or prilling methods to produce irregular chunks, fines, or bridging in storage. Moreover, uneven cooling can lead to surface oil bleed or incomplete crystallization, affecting the agent’s subsequent emulsification and application performance on fibers.
The equipment is designed to operate within a flexible production range of 100 to 2000 kg/h, accommodating both small-scale and large-scale manufacturing needs. It can be integrated into existing production lines, ensuring seamless operation with upstream blending systems and downstream handling or packaging units.
Key Advantages
Enables accurate batching, eliminates dust, and prevents caking during transport.
Adjustable belt speed and multi-zone cooling prevent smearing, adhesion, or oil separation.
Short contact time with heated surfaces and gentle discharge maintain the agent’s chemical integrity.
The smooth, non-porous belt and quick-release scraper allow fast cleaning between different spin finish grades.
Direct belt cooling uses less power than air-swept chillers, reducing operational costs.
Corrosion-resistant stainless steel construction and sealed bearings lower downtime in continuous production environments.
Engineering case
Frequently Asked Questions
The molten spin finish agent is typically heated to 50–90°C during operation, depending on whether it is a wax or oil-based formulation.
Spin finish agents often present difficulties such as narrow solidification windows, high room-temperature viscosity, and a tendency to smear or stick to surfaces if they are not rapidly quenched.
The equipment is designed to support a flexible production range of 100 to 2000 kg/h, making it suitable for both small-scale and large-scale manufacturing operations.
The system uses direct water cooling under the moving steel belt, allowing rapid, controlled solidification. This short contact time with heated surfaces prevents smearing, oil separation, and chemical degradation.
Yes. The smooth, non-porous stainless steel belt combined with a quick-release scraper allows for fast, efficient cleaning during product changeovers.