Qizhi CNC Automatic Welder for Nozzles of Pressure Vessels & Boilers

• Customization: Available
• Cooling Way: Air Cooling
• Style: Portable
• Model NO.: QIZHI MAH300
• Electric Current: AC
• Work Form: One-Body
• Type: Nozzle Welding
• Working Environment Temperature: -5 ºC~+45 ºC
• Relative Humidity: ≤ 85%
• Color: Medium Gray
• Welding Method: Saw
• Transport Package: Wooden Case
• Trademark: QIZHI
• Origin: China
• HS Code: 85153900

Product Description

QIZHI CNC Automatic Welder for Nozzles of Pressure Vessels & Boilers-QZMAH300

1. Key Features

1. The specially designed saddle shaped Curvilinear motion mechanism is easy to adjust and reliable.
2. The saddle drop can be adjusted from 0 to the corresponding range, and the machine head can be used for flat rotation welding and saddle welding (under preheating conditions of the workpiece).
3. Rotating components are with stepless adjustable rotation speed.
4. The horizontal and vertical positions of the welding torch are manually adjusted (non-automatic adjustment), ensuring reliable control.
5. It can achieve multi-layer and multi-pass continuous welding.
6. The equipment is equipped with a rotating conductive current collection device, and the wires are not entangled during multi-layer and multi-pass continuous welding.
7. The rotating conductive device adopts a dual wire and dual brush structure to ensure good conductivity.
8. To prevent excessive number of conductive rings, the control system is installed on the equipment body and rotates with the equipment.
9. It can work for a long time under the condition of workpiece preheating ≤ 200 ºC.

2. Specifications

Item	Name & Description	Parameters
1	Model	QZMAH300
2	Nozzle outer diameter	100~300 mm
3	Saddle drop	0~50mm
4	Workpiece max. preheating temperature	200ºC
5	Wire dia.	Φ1.2 mm, Φ1.6mm
6	Welding torch angle	±5°
7	Rotating speed	0.2~2 rpm
8	Duty cycle	400A @ 100%
9	Nozzle height	150~200mm

3. Application

This machine is mainly used for welding the nozzle which can NOT connect with flange in orthogonal and eccentric situations on pressure vessel, boilers or cylinders. Welding process is Submerged arc welding.