This project case showcases a 400 TPH Iron Ore Primary and Secondary Crushing Line in Kazakhstan built to withstand extreme sub-zero winter temperatures. It highlights how Sunwe Crusher engineered low-temperature alloy structures and pre-heated oil systems to process dense magnetite and hematite smoothly down to -30°C, eliminating material freeze-ups for the steel plant.Core Equipment: Sunwe Heavy Primary Jaw Crusher, Sunwe High-Efficiency Secondary Cone CrusherClient Location: Northern Region, KazakhstanRaw Material: Hard and Dense Iron Ore (Magnetite and Hematite)Plant Capacity: 400 TPH (Tons Per Hour)Operating Conditions: Stable Continuous Operation Down to -30°C
Key Equipment
The Challenge: What the Client Needed
A mining operator in northern Kazakhstan faced severe winter challenges. Their site contained hard, dense iron ore with high density. Extreme sub-zero temperatures often reached -30°C during winter months.Standard steel frames became brittle and cracked in the deep freeze. Conventional lubrication oils froze quickly, causing sudden machine seizures. Material freeze-ups regularly blocked the feeding chutes, stopping all steel plant production. The client needed a cold-resistant, heavy-duty 400 TPH crushing line.The Solution: Sunwe Cold-Resistant Crushing Line
Sunwe engineered a complete winter-proof iron ore crushing line. We integrated specialized materials to withstand both hard rock and extreme cold.Step 1: Heavy Primary Crushing
Our heavy primary Jaw Crusher breaks the dense magnetite blocks effortlessly. We built the machine frame using specialized low-temperature alloy structures. This custom alloy prevents steel brittleness and structural cracking in freezing weather.Step 2: Secondary Cone Crushing
Our high-efficiency secondary Cone Crusher reduces the iron ore further. We equipped the crusher with an automated, pre-heated oil lubrication system. This system maintains correct oil viscosity before the machine starts spinning.Step 3: Anti-Freeze Screening & Conveying
Heavy-duty vibrating screens separate the crushed iron ore into final sizes. We added heating elements to the transfer chutes to prevent material freeze-ups. The system ensures a smooth material flow directly to the steel plant.Performance Comparison
The table below illustrates the plant performance during winter before and after installing Sunwe.| Key Performance Indicator (KPI) | Standard Crushing Line | Sunwe Cold-Resistant Line | Net Improvement |
| Hourly Output (TPH) | 180 t/h (Winter Drop) | 400 t/h (Stable) | +122.2% Winter Capacity |
| Minimum Operating Temp | -10°C (Limit) | -30°C (Continuous) | Extreme Cold Proven |
| Frame Cracking Incidents | 3-4 Times / Winter | 0 Times | Eliminated Structural Risk |
| Daily Startup Delay | 90 Minutes (Pre-heating) | 10 Minutes | 88% Faster Winter Starts |
The Results and Client Value
The Sunwe iron ore crushing line operates flawlessly through the harsh Kazakh winter. It consistently delivers a reliable 400 TPH throughput.The specialized alloy structures show zero signs of cold-weather stress or cracking. The pre-heated lubrication system allows fast morning startups without delays. Consequently, the client feeds the steel plant’s processing lines continuously without material freeze-ups.“Sunwe low-temperature engineering saved our winter production targets in Kazakhstan. The iron ore crushing line runs smoothly at -30°C without a single freeze-up. We highly recommend their cold-resistant alloy equipment.”— Mr. Dmitri Ivanov, Chief Mechanical Engineer
Why Global Quarry Owners Choose Sunwe
- Factory Direct Supply: We manufacture all heavy-duty crushers in-house to guarantee quality.
- Extreme Climate Engineering: Our team builds specialized configurations for arctic and tropical sites.
- Quick Spare Parts Delivery: We stock premium wear parts to minimize your downtime.
