
About the customer
Jian LOng is headquartered in Beijing, founded by a Zhejiang entrepreneur. The company is known for its pragmatic, results-driven culture — fast decisions, strict performance standards, and a sharp eye on cost-effectiveness and supply reliability.
In September 2023, Jianlong Xilin Steel commissioned a new 4-million-ton-per-year straight-grate pelletizing line in Xilin, Heilongjiang — one of the largest such lines in Northeast China.
2023
September

Rendering of a 4 million tons/year green low-carbon belt calciner pellet production line project
Xilin Steel
Lines go live
The plant started production as scheduled. Everything was running — until it wasn’t.
2024
May
Sample order placed
We were invited to supply trial samples. The customer wanted to see if our products could handle their tough conditions. We shipped promptly.
2024
June

Installed and tested on October 25, 2024, with 16 upper sidewalls
Xilin Steel
Heat test (1280°C + 2m/min faster)
To push our products to the limit, the plant ramped up the kiln temperature to 1280°C and increased belt speed by 2 meters per minute — well above design specs. Our sidewalls held. No cracks. No deformation.
2024
September

After three months of use
Scaling up
Convinced by the summer performance, the plant switched to our sidewalls in volume. So far, we have supplied over 2,600 upper sidewall pieces to this single line.
2026
May
First major inspection
After nearly two years of continuous service under extreme conditions, the plant conducted its scheduled overhaul. Inspection results: Our sidewalls were fully intact — no signs of burn-through, no cracks, no replacement needed.
2026
July

After three months of use
Annual tender awarded
Based on proven performance, we won the annual consumables tender against multiple competitors. The contract includes 15,400 grate bars plus a full maintenance parts package for the upcoming year — a clear signal of their trust in our long-term capability.




