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Inside TianyuanWhere cranes are cut, welded and lifted into life.
A 60,000 m² integrated facility in Xinxiang, Henan — steel plate arrives at one end, load-tested cranes leave at the other.
Production Flow
Six stages. One shop floor.
01
Steel Preparation
Q345B/Q235B plate is CNC-cut, edge-milled and beveled to design tolerance before entering the girder line.
02
Girder Welding
Six automated submerged-arc welding lines fabricate box girders under continuous ultrasonic inspection.
03
Machining & Assembly
End carriages, drums, wheels and gearboxes are CNC-machined in-house and pre-assembled.
04
Sand-Blast & Paint
Sa 2.5 sand-blasting followed by two-pack epoxy primer and polyurethane top-coat in enclosed booths.
05
Trial Assembly
Every crane is trial-assembled on the plant runway and load-tested to 125% of rated capacity.
06
Packing & Dispatch
Modular knock-down packing with wax-coated joints — ready for sea, rail or road export.
Quality Discipline
Nothing leaves without a load test.
- Ultrasonic weld inspection on every girder
- Dimensional check with laser tracker
- 125% dynamic + static load test
- Third-party inspection (SGS, BV, TÜV) welcome
- Full documentation pack shipped with every crane






