Technical Parameters

Model	QTB-90AF
Rated Current (Mixed Gas Cooling)	90A
Duty Cycle	35%
Diameter of Applicable Welding Wire	0.6-1.0mm

Model

Description	Part No.
	2.5m	3m
Welding Gun Coupled with Euro Gun Neck	NVA-90E-2.5	NVA-90E-3
Welding Gun Coupled with Tweco Gun Neck	NVA-90T-2.5	NVA-90T-3

Nozzle

No.	Part No.	Description
A	EA1212	Nozzle 12mm
B	21-50*	Self Insulated Nozzle
	21-50F

Contact Tip

No.	Part No.	Description
D	EB1106	0.6mm M6 ×25 Ecu
	EB1108*	0.8mm M6 ×25 Ecu
	EB1109	0.9mm M6 ×25 Ecu
	EB1110	1.0mm M6 ×25 Ecu
E	11-23	0.023 inch /0.6mm Ecu
	11-30*	0.030 inch /0.8mm Ecu
	11-35	0.035 inch /0.9mm Ecu
	11-40	0.040 inch /1.0 mm Ecu

Liner

No.	Part No.	Description
F	FLR1210-2.5	Steel Liner 0.6-1.0mm ×2.5m
	FLR1210-3*	Steel Liner 0.6-1.0mm ×3m

Component

No.	Part No.	Description
1	FLD9002	Diffuser Coupled with Spring
2	FD9001	Diffuser
3	EF1011	Insulator Sleeve
4	FLF9235*	Conductor Tube 35°
	FLF9245	Conductor Tube 45°
5	FLR91170	Front Liner
6	FLH9111	Front Handle
7	Q504219S	O Ring 4.2 ×1.9
8	EG0002	Hanger Hook
9	FL9027	Gas Pipe Connector
10	FLL9011	Gas Valve
11	FLH9112	Trigger
12	FLH9021	Trigger Shrapnel
13	ES2102	Front Spring Cable Shrapnel
14	FLL9025	Cable Assembly 2.5m
	FLL9030	Cable Assembly 3m

Note: * denotes standard build. Customer should mark out the part number when choosing the accessories.

As an experienced air cooled welding torch (self insulated nozzles) manufacturer and supplier in China, North provides a comprehensive range of products, including welding copper air cooled MAG welding gun, gas metal arc welding torch, self aligning welding rotator, and more.

Related Names:
Convection Cooling Self-defending Welding Gun | Air Cooling Safety Welding Pistol | Natural Cooling Self-shield Welding Torch | Natural-cooled Self-protective Welding Blowpipe