Henan Hongke Heavy Machinery Co., Ltd. just shipped a Φ3.5×50m rotary kiln for hematite processing to a customer in India. Here's the quick story.
The Problem: They Needed More Throughput, Better Quality
Our Indian customer processes hematite iron ore. To make it work for beneficiation, you have to heat it up to convert it from hematite to magnetite. Their old kilns just weren't cutting it:
Quality was inconsistent – uneven heating meant uneven conversion
Fuel bills were high – poor thermal efficiency burned extra fuel
Capacity was too low – they couldn't keep up with orders
Downtime was frequent – equipment kept breaking down
They needed a kiln that could run hard, run hot, and run reliably—at 20,000 tons per year.
What We Built
We designed a Φ3.5×50m rotary kiln specifically for their hematite ore. Not a generic machine—engineered for the job.
| Spec | What It Means |
|---|---|
| 3.5m diameter | Big enough for high throughput |
| 50m length | Long enough for complete calcination |
| Up to 1200°C | Hot enough to convert hematite to magnetite |
| 20,000 TPY | Matches their production target |
Key design choices:
Adjustable temperature zones – preheat, burn, and cool sections give precise control
Long kiln design – 50m length means material stays in the heat long enough for complete conversion
Dual drive with backup motor – keeps the kiln turning even if power flickers, preventing warping
Modern seals – keeps dust in, keeps heat in, cuts fuel waste
Full system – we supplied the whole package: shell, rollers, drive, seals, and control panel
Why This Kiln Works
| Feature | Benefit |
|---|---|
| Temperature control | Consistent product quality every batch |
| Efficient heat use | Lower fuel costs |
| Backup drive | No shutdowns from power issues |
| Tight seals | Lower emissions, cleaner plant |
| Heavy build | Less breakdowns, longer life |
Better-designed rotary kilns can cut fuel use by up to 15% and increase uptime by 10%. That's real money.
The Result
The kiln is on its way to India now. Once running, it'll process 20,000 tons of hematite a year—turning raw ore into magnetite, ready for beneficiation. The customer gets consistent quality, lower fuel bills, and reliable 24/7 operation.
Quick Look at Henan Hongke
We're Henan Hongke Heavy Machinery Co., Ltd. – we've been building rotary kilns, dryers, ball mills, and crushers since 2006. We ship worldwide and back everything with real support.
Need a Kiln?
If you're processing iron ore—hematite, limonite, or anything else that needs calcination—talk to us. We'll engineer a kiln that fits your material and your numbers.
Contact Henan Hongke Heavy Machinery Co., Ltd. – we deliver solutions, not just machines.
Henan Hongke Heavy Machinery Co., Ltd.
Rotary Kilns | Dryers | Ball Mills | Crushers – Built for Real Work

