Henan Hongke Heavy Machinery Co., Ltd. is pleased to report the successful installation and commissioning of a rotary kiln for magnesium oxide (MgO) calcination at a customer site in Liaoning Province, China. This is a brand-new system—not a refurbishment, not an upgrade of existing equipment—delivered as a complete, engineered production line.
Project Background: Calcining Magnesium Oxide
Magnesium oxide is produced by calcining magnesium-bearing minerals—typically magnesite (MgCO₃) or dolomite—at high temperatures. The calcination process drives off carbon dioxide and produces MgO, which is used across refractories, agriculture, construction, and chemical industries.
Our customer in Liaoning operates in the refractory materials sector. The region is a major source of magnesite, and the customer wanted to expand their MgO production with a modern, reliable calcination system. Their existing equipment could not consistently deliver the required product quality or throughput.
They came to us with clear requirements:
Consistent product quality – stable reactivity and purity
Reliable continuous operation – 24/7 production
Precise temperature control – critical for MgO properties
Environmental compliance – dust emissions within regulations
Brand-new equipment – no used or refurbished machinery
Why This Customer Chose Henan Hongke Machinery
After evaluating several suppliers, the customer selected Henan Hongke Heavy Machinery for several reasons:
1. Experience with MgO Calcination
Magnesium oxide calcination requires specific temperature profiles and residence times. We demonstrated our understanding of the process and our ability to design a kiln that meets these requirements.
2. Custom-Engineered for Their Material
We don't sell generic kilns. Our engineering team designed the system around the customer's magnesite feed characteristics—particle size, moisture content, and target throughput.
3. Complete, Brand-New System
The customer wanted a purpose-built system, not a refurbished unit or a repurposed cement kiln. We delivered a complete production line, built from the ground up.
4. One-Stop Solution
We supplied the full scope—feed system, kiln, burner, dust collection, discharge, and controls. The customer didn't have to coordinate multiple suppliers.
5. Long-Term Support
The customer wanted a partner who would be there after commissioning. We provide spare parts, technical advice, and ongoing service.
What We Supplied
A complete MgO calcination line built around a rotary kiln engineered for the application.
| Key Specification | Value |
|---|---|
| Application | Magnesium oxide calcination |
| Kiln type | Rotary kiln with refractory lining |
| Operating temperature | Up to 1,200°C (adjustable by zone) |
| Drive system | Heavy-duty gear drive with auxiliary motor |
| Sealing system | Labyrinth seals with air purge |
| Control | PLC-based with temperature monitoring |
The system includes:
Controlled feed system for consistent material entry
Rotary kiln with high-alumina refractory lining
Multi-fuel burner (gas or pulverized coal)
Dust collection system (cyclone + bag filter)
Discharge and cooling system
PLC-based controls with full data logging
Installation and Commissioning: Results
The installation and commissioning were completed successfully. Key results:
| Activity | Result |
|---|---|
| Mechanical installation | Completed to specification |
| Kiln alignment | Verified; smooth rotation |
| Refractory installation | Completed; proper curing performed |
| No-load testing | Stable operation, normal bearing temperatures |
| Hot commissioning | Temperature profile achieved; consistent calcination |
| Product quality | Initial batches met customer specifications |
The system is now ready for continuous production.
Actual Effects: What the Customer Gets
| Benefit | Value |
|---|---|
| Consistent product quality | Stable MgO reactivity and purity |
| Reliable operation | Built for 24/7 production with minimal downtime |
| Precise temperature control | Multi-zone monitoring for optimal calcination |
| Environmental compliance | Dust emissions controlled to meet regulations |
| Lower operating costs | Optimized fuel consumption and maintenance |
| Full support | Commissioning, spare parts, technical assistance |
Building Long-Term Partnerships
At Henan Hongke Heavy Machinery, we view a successful commissioning as the start of a long-term relationship. Our commitment to the Liaoning customer includes:
Technical support – process optimization and troubleshooting
Spare parts availability – critical components stocked for quick delivery
Maintenance guidance – support for preventive maintenance planning
Future cooperation – ready to assist with capacity expansion or process changes
We're not just a supplier. We're a partner.
About Henan Hongke Heavy Machinery Co., Ltd.
Henan Hongke Heavy Machinery Co., Ltd. (Henan Hongke Machinery) has been designing and manufacturing industrial processing equipment since 2006. Our product portfolio includes:
Rotary Kilns – for magnesia, lime, dolomite, metallurgy, and mineral calcination
Rotary Dryers – for sludge, biomass, and industrial materials
Ball Mills – for ore, slag, cement, and chemical grinding
Crushers – for primary and secondary size reduction
We focus on one-stop solutions for mining and materials processing—complete systems, not just individual machines. From engineering to installation and after-sales service, we stay with our customers every step of the way.
Let's Talk About Your Calcination Project
Whether you need a rotary kiln for magnesium oxide, other minerals, or any thermal processing application, we're here to help.
Contact Henan Hongke Heavy Machinery Co., Ltd. – we'll listen to your needs and deliver equipment that works.
Henan Hongke Heavy Machinery Co., Ltd.
Rotary Kilns | Rotary Dryers | Ball Mills | Crushers – Built for Reliability, Backed by Service