FAG cross roller bearings, their rollers are arranged at right angles to each other at intervals between the inner and outer wheels. They can take loads from all directions at the same time (such as axial, thrust or momentum loads, etc.). Because the roller contacts the surface of the track, FAG bearings are less likely to be elastically deformed due to their load. This type of FAG bearing is widely used in industrial robots, work machines and medical facilities, etc. It needs high rigidity, tightness, and high rotation speed to ensure accuracy.

In FAG cross roller bearings, because the cylindrical rollers are arranged perpendicular to each other on the V-shaped groove rolling surface at 90° through the spacer, one cross roller bearing can bear radial load and axial direction. Load in all directions such as load and moment load. The size of the inner and outer rings is minimized, and the extremely thin type is a compact size that is close to the limit, and has a high rigidity. Therefore, it is most suitable for a rotary table or a rotary table of a robot or a machining center of an industrial robot. Rotary parts of robots, precision rotary tables, medical devices, gauges, IC manufacturing equipment, etc.

Thermal Fluid Heaters

Thermal oil heaters
Our product range includes biomass fired thermal oil heaters, coal fired hot oil boilers, oil/gas fired thermal oil heaters and molten salt heaters. We also offer thermal oil heaters systems and solutions.


Technical advantages
Digitized manufacture
  • The laying-off of steel tube adopts CNC 3D laser cutting machine.
  • The manufacture of round coil tube adopts CNC coil tube automatic production line. Once-forming and no need for plastic .

Full argon arc welding
  • The tube butt adopts argon arc welding technique and the seams will be done x ray real-time imaging, preventing unqualified seams from entering coil production line .

Easy operation
  • Heater is wholly assembled before delivery, it is easy for installation, debugging and operating.

  • Fully automatic operating, burning, liquid level of high level tank, outlet temperature and flow rate are adjusted automatically and self-protected.

  • The inlet and outlet with end flanges and flanged cover structure facilitate the installation and layout of tubeline in boiler house.

Less fuel consumption
  • Internal side adopts good insulation material, outside uses stainless steel plate, which can mostly reduce heat lost and make working environment better.

  • Multilayers closely spaced tube bundle and steel rod is used to seal and fix, completely eradicating short circuit of flue gas.

  • Before delivery, the residue moisture is removed completely, so the system draining period is reduced to 2 days from 12 days.
Safely operation
  • The inner coil tube has bigger flow rate, so it is more stable under high temperature operation.

  • Conical coil effectively protects the furnace wall at the end of heater and burner on the top.



WUXI ZOZEN BOILERS CO.,LTD. , https://www.cnzozen.com