Our company Nantong Zongheng Machinery Co.,Ltd is located in Nantong City,Jiangsu Province, a large-scale machine tool manufacturing enterprise in East China. The main products of company are gantry machining center, vertical machining center, cnc lathe, surface grinder, vertical knee type milling machine, turret universal rocker milling machine, etc. Products are widely used in mould manufacturing, auto parts, wind power, nuclear power, ocean ships, military aerospace, college teaching fields and etc. We donot only enjoy best-selling in domestic market, but also export to Southeast Asia, the Middle East, Brazil, India, Africa, Europe, the United States and some other countries and regions. 

Each machine has to pass the checklist of the machine precision before shipment

1  Adjust levelness of the machine

2  Straightness of rise and fall mechansim in vertical movement

3. Verticality of the operating platform surface to the guide track surface of the column

4. Straigtness of the datum T-slot of the operating platform

5. Plainness of the operating platform surface

6. Oscillation of the spindle end

7. Circular run ou of  the spindle bore-hole axis

8. Parallelism of the rotaryaxis of the spindle to the operating platform

9. Verticality of the rotary axis of the spindle to the operating platform

10. Parallelism of the longitudinal movement of the operating platform to the datum”T“-shot

11. Vertically of the transverse movement to the longitudial movement of the operating platform

12. Parallelism between the movement and the surface of the operating platfor

Warranty period: one year

During warranty period, if you have any parts broken because of qulity problem,we will supply to you free of charge by express.

Out of warranty period, if you have any question, you can contact with us, we will supply our best service to you as usual.

1.Technical support online service provided .
2.Technical files service provided.
3.Machine operation video provided
4.On-site training service provided.
5.Spare parts replacement and repair service provided.
6.All of the questions will be replied within 24 hours