Perlite, a naturally occurring volcanic glass, is widely used in the metallurgical industry as a fluxing agent. Its unique property of expanding when heated (up to 20 times its original volume) makes it an ideal additive for slag conditioning, deoxidation, and improving metal recovery in steelmaking and non-ferrous metal smelting. In Vietnam, where the metallurgy sector is growing rapidly due to industrialization and infrastructure development, the demand for high-quality perlite flux has increased significantly. To meet this demand, efficient and reliable grinding equipment is essential to process raw perlite into the desired fineness (typically 80–200 mesh or 0.18–0.075 mm) for flux applications.
Shanghai Zenith Machinery Co., Ltd., a leading manufacturer of ore grinding equipment in China, offers a range of advanced mills specifically designed for processing perlite. With a target capacity of 1–3 tons per hour (tph) for metallurgy flux in Vietnam, we have identified two outstanding solutions: the YGM8314 Raymond Mill and the XZM221 Ultrafine Grinding Mill. Both models deliver exceptional performance, energy efficiency, and product consistency, making them ideal for mid-scale perlite grinding operations.
Raw perlite has a hardness of 5.5–6 on the Mohs scale and a moisture content usually below 6%. For metallurgy flux, the ground perlite must have a uniform particle size distribution and minimal fines to ensure proper slag fluidity and reaction kinetics. The grinding process also needs to be dust-free and energy-efficient to comply with Vietnam’s increasingly stringent environmental regulations. 1–3 tph is a common production scale for small to medium-sized flux factories, where reliability and low operating costs are paramount.
Zenith’s grinding mills are engineered to handle materials like perlite with ease. The YGM8314 Raymond Mill, for instance, features a blower, analyzer, and grinding roller system that continuously recirculates oversized particles, ensuring uniform output. The XZM221 Ultrafine Mill, on the other hand, uses high-speed rotation and multiple grinding rings to achieve ultra-fine powders down to 2500 mesh, but can be adjusted to produce the coarser flux grade as well. Both machines are built with wear-resistant materials and centralized lubrication to minimize downtime.
Based on extensive testing and field applications in Vietnam, we recommend the following two Zenith models for perlite flux grinding at 1–3 tph:
The Raymond Mill is a time-proven design for medium-fine grinding. The YGM8314 model is equipped with three grinding rollers, a feed size up to 20 mm, and a discharge fineness adjustable from 1.6–0.045 mm (10–325 mesh). Its capacity ranges from 1.2 to 4.6 t/h, perfectly covering the 1–3 tph requirement. The mill’s sealed gearbox and dustproof system ensure a clean working environment, while its low vibration and noise make it suitable for suburban installations.
Key advantages for perlite flux:
For applications requiring a finer grind or higher flexibility, the XZM221 Ultrafine Mill is an excellent choice. With a working diameter of Φ800 mm and a maximum feed size of 20 mm, it can produce powder from 325 to 2500 mesh. When set to a coarser output (e.g., 200 mesh), its capacity reaches up to 4.5 t/h, easily covering the 1–3 tph range. This mill is particularly favored when the flux requires a higher specific surface area for faster reaction in the furnace.
Key advantages for perlite flux:
| Parameter | YGM8314 Raymond Mill | XZM221 Ultrafine Grinding Mill |
|---|---|---|
| Model | YGM8314 | XZM221 |
| Roller Quantity (pcs) | 3 | – (Ring & roller design) |
| Max Feed Size (mm) | 20 | ≤20 |
| Discharging Size | 1.6–0.045 mm (10–325 mesh) | 325–2500 mesh (adjustable to coarser) |
| Capacity (t/h) | 1.2–4.6 | 0.5–4.5 (adjustable to 1–3 tph for flux grade) |
| Main Motor Power (kW) | 30 | 75 |
| Overall Dimensions (L×W×H, m) | 5.1×2.8×5.8 | 7.6×5.3×7.2 |
| Weight (t) | 7.2 | 12.5 |
A recent installation in the Ba Ria–Vung Tau province of Vietnam demonstrated the effectiveness of the YGM8314 Raymond Mill for processing perlite flux. The operation runs 16 hours/day, producing 2.5 tph of 150-mesh perlite powder. The mill has been operating for over 8 months with no major breakdown, and the customer reported a 15% reduction in energy costs compared to the previous ball mill setup. Similarly, a flux producer in the Hanoi area switched to the XZM221 Ultrafine Mill to achieve a finer 325-mesh product for specialty steel grades, achieving 2.8 tph while maintaining product consistency.
Vietnam’s metallurgy industry requires reliable and efficient perlite grinding solutions that can deliver consistent flux quality at 1–3 tph. Shanghai Zenith Machinery Co., Ltd. offers proven equipment that combines advanced technology with rugged construction. The YGM8314 Raymond Mill is the ideal choice for standard flux applications, while the XZM221 Ultrafine Grinding Mill provides extra flexibility for finer grades. Both mills are supported by Zenith’s global service network and spare parts availability in Vietnam. Contact us today to discuss your specific requirements and receive a tailored proposal.
