Premium Foundry Coke with Low Ash, Low Sulfur, and High Calorific Value
Qinxin Foundry Coke is a high-performance product trusted by foundries worldwide. With low porosity, high pore density, low reactivity, and excellent post-reaction strength, it is specially designed for cupola melting and precision casting.
Compared with ordinary metallurgical coke, Qinxin Foundry Coke offers higher molten iron temperature, superior carburization effect, higher utilization ratio, and greater casting yield. Certified by the China Foundry Association and highly recognized in overseas markets, it is widely regarded as an ideal product for the casting industry.
Key Features of Qinxin Foundry Coke
Three Lows & One High performance:
High Drop Strength – Durable during transportation and charging.
Moderate Volatile Content – Supports stable combustion.
Low Porosity & Low Reactivity – Maintains strength under high-temperature conditions.
Excellent Carburization Effect – Improves carbon recovery in molten iron.
Ideal Raw Material for Rock Wool Production – Due to its consistent quality and high calorific value.
Technical Specifications (Typical Values)
| Size (mm) | Ash (%) | Sulfur (%) | Fixed Carbon (%) | Calorific Value (kcal/kg) | Moisture (%) |
| 60–90 / 80–120 | ≤10 | ≤0.6 | ≥88 | ≥7200 | ≤5 |
| 90–140 / ≥120 | ≤10.5 | ≤0.6 | ≥88 | ≥7200 | ≤5 |
Volatile Matter: typically ≤1.5%.
Drop Strength: ≥97–98% (high durability during handling).
Apparent Porosity: ≤33–36%.
Reactivity (CRI): ≤22–23%.
Post-Reaction Strength (CSR): ≥60–63%.
Production Process
Qinxin Foundry Coke is produced in the QRD-2000 Clean Heat Recovery Stamp Charging Coke Oven, following six major steps:
Coal Preparation
Coking
Coke Quenching
Screening & Sizing
Waste Heat Power Generation
Flue Gas Purification
Technical Highlights:
Fully automated coal blending system.
Mechanical stamp charging & side loading.
Smokeless coke pushing process.
Negative pressure, fully automated operation.
DCS system for real-time temperature & pressure control.
Service Advantages
Customized Production & Blending Services – Tailor-made coke quality for your foundry.
Premium Raw Material Base – 9 coal mines producing rare low-ash 15# prime coking coal.
Strong Production Capacity – Annual raw coal output of 12.7 million tons.
Modern Washing Plants – 2 advanced coal washing plants with 12 million tons annual capacity.
Stable Supply Chain – Reliable long-term delivery for domestic and international customers.
Applications
Cupola Furnaces – High efficiency melting with superior carburization.
Precision Casting – Ideal for automotive and machinery castings.
Non-Ferrous Smelting – Reliable heat source for copper, aluminum, and lead.
Rock Wool Production – Preferred raw material thanks to its “three lows and one high” features.
Industrial Heating & Gas Generation – Consistent energy performance.
Certifications & Recognition
Certified by the China Foundry Association for product quality.
Highly recognized in international markets for consistent performance.
ISO 9001, ISO 14001, OHSAS 18001 certified production and management system.
FAQ
Q1: What makes Qinxin Foundry Coke different from regular coke?
A1: It has low ash, low sulfur, ultra-low phosphorus, and high calorific value, ensuring high melting efficiency and clean molten iron.
Q2: Can you provide custom sizes?
A2: Yes, available in 40–90 mm, 60–90 mm, 80–120 mm, 90–140 mm, ≥120 mm, or according to customer needs.
Q3: How do you ensure stable quality?
A3: Each batch undergoes strict testing for ash, sulfur, fixed carbon, reactivity, and strength before shipment.
Q4: Is it suitable for rock wool production?
A4: Yes, thanks to its low ash, low sulfur, low phosphorus, and high calorific value, it is widely used as a raw material in rock wool production.
Contact Us
Looking for a reliable Foundry Coke supplier with stable quality and strong supply capacity?
Email: info@qx-tjdahua.com
