Welding Wire Feed Unit

Welding wire feed units are used in combination with geared PMDC motor for MIG welding. It has series of rollers that pushes the wire out to the welding torch. On larger power MIG welders the wire feed unit can be separate. The large spool of wire should be held on with a torque nut. The nut should be tight enough to keep the spool from unravelling so as to avoid over-run (birds nesting) when trigger is released, but not so tight that the rollers can't pull the wire from the spool. The wire from the spool goes into a set of rollers that pull the wire off of the big roll, this then pushes the wire up to the torch to the tip ready for welding.

We have a 2-roll feed system normally for smaller machines, this comprises of a bottom roller with grooves in and a top pressure roller which is flat and puts pressure on wire as set by tensioners to drive wire when the rollers turn.

Also we have 4-Roll system which has two bottom rollers and two top rollers which give a more stable wire feed and is better at feeding softer alloy wires than a 2-roll system. Some wire feed units also have geared 4-roll systems which helps to regulate wire flow speed with great accuracy resulting in exceptionally smooth welds.

Available Ranges

Output Watts	40 to 120 W
Voltage	24 to 110 V DC
FL Speed	25 to 200 RPM
Torque	2.5 to 15 Nm
Insulation Class	B and F
Duty	S1 (Continous Duty)
Drive Type	2 roll & 4 roll
Pressure roll type	Free running/Gear driven
Roller diameter	30 mm and 37 mm
Type of groove	"V"
Groove size in mm	0.8/1.2, 1.2/1.6
Standard Wire speed in meters/min	19 and 25
Custom Wire speed in meters/min	2.5 to 35

Applications

• MIG welding
• Automobile Industry
• Building of bridges

Model	Rollers	Feed Rate	RPM	Watts	HP	Volts
F20510	2 Roller	24 m/AT4:AT50min	210	80	0.11	24
F20511	2 Roller	24 m/min	210	80	0.11	36
F20512	2 Roller	24 m/min	210	80	0.11	42
F20513	2 Roller	24 m/min	210	80	0.11	110
F20514	2 Roller	24 m/min	210	80	0.11	24
F20514 S2	2 Roller	6.97 m/min	60	80	0.11	24
F20515	2 Roller	24 m/min	210	80	0.11	36
F20515 S1	2 Roller	24 m/min	210	80	0.11	36
F20516	2 Roller	24 m/min	210	80	0.11	42
F20517	2 Roller	24 m/min	210	80	0.11	110
F20518	2 Roller	24 m/min	210	120	0.16	24
F20519	2 Roller	24 m/min	210	120	0.16	36
F20520	2 Roller	24 m/min	210	120	0.16	42
F20521	2 Roller	24 m/min	210	120	0.16	110
F20521	2 Roller	24 m/min	210	120	0.16	110
F20521 S1	2 Roller	24 m/min	210	120	0.16	110
F20522	2 Roller	24 m/min	210	120	0.16	24
F20522	2 Roller	24 m/min	210	120	0.16	24
F20523	2 Roller	24 m/min	210	120	0.16	36
F20610	2 Roller	24 m/min	210	80	0.11	24
F20611	2 Roller	24 m/min	210	80	0.11	36
F20612	2 Roller	24 m/min	210	80	0.11	42
F20613	2 Roller	24 m/min	210	80	0.11	110
F20614	2 Roller	24 m/min	210	80	0.11	24
F20615	2 Roller	24 m/min	210	80	0.11	36
F20615 S1	2 Roller	24 m/min	210	80	0.11	36
F20616	2 Roller	24 m/min	210	80	0.11	36
F20617	2 Roller	24 m/min	210	80	0.11	110
F20621	2 Roller	24 m/min	210	120	0.16	110
F20710	2 Roller	20 m/min	210	80	0.11	24
F20711	2 Roller	20 m/min	210	80	0.11	36
F20712	2 Roller	20 m/min	210	80	0.11	42
F20713	2 Roller	20 m/min	210	80	0.11	110
F20714	2 Roller	20 m/min	210	80	0.11	24
F20715	2 Roller	20 m/min	210	80	0.11	36
F20716	2 Roller	20 m/min	210	80	0.11	42
F20717	2 Roller	20 m/min	210	80	0.11	110
F40105 S2	4 Roller	7.5 m/min	80	120	0.16	110
F40107	4 Roller	20 m/min	210	120	0.16	24
F40107 S2	4 Roller	20 m/min	80	120	0.16	24
F40422	4 Roller	20 m/min	210	120	0.16	24
F40423	4 Roller	20 m/min	210	120	0.16	36
F40424	4 Roller	20 m/min	210	120	0.16	42
F40425	4 Roller	20 m/min	210	120	0.16	110
F40522	4 Roller	20 m/min	210	120	0.16	24
F40523	4 Roller	20 m/min	210	120	0.16	36
F40524	4 Roller	20 m/min	210	120	0.16	42
F40525	4 Roller	20 m/min	210	120	0.16	110
F40610	4 Roller	20 m/min	210	80	0.11	24
F40614	4 Roller	24 m/min	210	80	0.11	24
F40615	4 Roller	24 m/min	210	80	0.11	36
F40622	4 Roller	24 m/min	210	120	0.16	24
F40623	4 Roller	24 m/min	210	120	0.16	36
F40624	4 Roller	24 m/min	210	120	0.16	42
F40625	4 Roller	24 m/min	210	120	0.16	110