+Years experience
1
+ Enterprise invention patents
100

Full-Service Heavy Casting Specialist |
CNC Machining & Surface Treatment

We have been deeply engaged in heavy casting manufacturing for 60 years. Mastered the entire process of sand mold/disappearance mold/precision casting.

Hailong group

Who Are We?

A Team of Comprehensive Dependable Casting Manufacturing Experts for Industrial and Commercial Needs.

Providing precision casting solutions, advanced mold design, and custom manufacturing services. With cutting-edge foundry technology, rigorous quality control, and on-time delivery guarantees, we empower industries with durable components for machinery, automotive, energy, and infrastructure. Trust our 360° support—from prototype to mass production—to meet your most demanding casting challenges.

Our Work

Automotive Parts Upgrade


Client: German Auto Parts Supplier
Issue: Heavy traditional castings reduced EV battery range
Solution: Custom thin-wall aluminum die-casting process
Result: 35% weight reduction, annual orders grew to 500K units

Heavy Machinery Emergency Repair

Client: Chinese Mining Equipment Manufacturer
Issue: Broken gear caused $200K/day production losses
Solution: 72-hour emergency sand casting + heat treatment
Result: Delivery in 3 days, 2x longer service life

Energy Equipment Export Breakthrough


Client: Renewable Energy Company
Issue: Offshore wind components failed due to salt corrosion
Solution: Nickel alloy + vacuum precision casting
Result: EU certification secured, $3M order achieved

How can we help you?

Boost Your Production Efficiency

 · Alloy development for extreme temperature/load resistance

 · Thin-wall casting & microstructural integrity control

 · Post-casting machining & surface treatment integration

CNC machining

Tackle Technical Challenges

· Custom alloy parts for extreme heat/pressure resistance

 · Thin-wall casting without cracks, stronger internal structures

 · One-stop service: Casting + finishing (hassle-free!)

quality guarantee

Quality & Sustainability Guaranteed

 · Rigorous quality checks (X-ray inspection, zero-defect promise)

 · ISO-certified for global export compliance

 · Eco-friendly melting tech with waste recycling

One-Stop Service Cost Comparison Calculator

emergency

We're here to help! Call Us Today!