GN Solids Control is only devoted to provide consistent quality shaker screens to suit different site usage, no matter it's oil and gas or HDD etc. We DO not want to cut our manufacturing cost by using some cheap raw materials.
1. Screen Frame:
As you know the composite screen is embedded by one metal screen supporting frame. Many screen vendors are using single layer and less metal bars, which are OK in some worksites usage but will also broke shortly in the other sites.
2. Composite Materials:
There are 3 popular ways to get those composite or plastic for all composite screen manufacturers: a. Recycle and reuse second hand plastic; b. Buy chemicals and manufacture by himself; c. Buy high quality prilling plastic.
GN only uses the last one which is high quality prilling plastic, obvious this is the most expensive one, but the composite frame is also last longest.
3. Wire Cloth:
Different screen manufactures are buying from different wire cloth vendors, top rank, second rank and third rank... GN Solids only use top rank wire cloth which is the same vendor as Derrick and Mi-Swaco.
Different wire cloth to from the API no., GN only uses 304 for the bottom layer, but use 316L for the middle and top layer.
4. Injecting Moulding Machine
GN has its own injecting moulding machine. Quality can be controlled strictly.
Consistent quality is very important for us, we will never manufacture screens that work well in one site and fail in the other site. Quality is one thing; the API cut point is another important thing to consider.
As far as we know, GN is the only China Screen manufacturer has all the API no. that tested by a USA third party in order to conforms with API RP 13C. You may double check with the other China screen vendors whether they have a full series API test report issued by a third party.
Besides, GN Screen are 4 side tensioned, it takes time to do this (actually manufacturing efficiency is pretty low) and also waste some screen cloth during manufacturing but it's totally worth. We can send you a tension testing tool next time so you may check whether the other screen vendors are using any pretention method.