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Description

Pi 200 250 350 500
TIG, MMA, AC/DC, CELL, PULSE, AUTOMATION

Migatronic Pi - TIG welding machines from portable to heavy duty
Migatronic Pi are user-friendly welding machines, which meet every need for TIG and MMA welding. High-performance inverter machines for precision welding in mild steel, stainless steel, aluminium and other high-alloy materials. There is a Migatronic Pi machine for any type of welding operation: repair, assembly, construction, industry and robot. Processes include TIG HP (high-frequency with pulse), TIG H (without pulse), TIG AC/DC and MMA welding with covered electrodes. 

Robust and reliable welding quality
All Pi machines are delivered with coated PCB’s and carry Eurocodes calibration certificate.

Migatronic’s Pi range covers the entire spectrum from portable on-location versions to dedicated special and heavy duty machines with up to 500 A for automatic/robot welding.

Migatronic’s Pi machines combine proven inverter technology with new control and communication options. These features optimise welding performance and make the most advanced functions child's play to use. 

Pi 350 MMA CELL - a new Migatronic feature
Pi 350 MMA CELL is designed specifically for tube/pipeline welding and vertical downwards welding positions using cellulose electrodes. This means considerably increased welding speed, increased melting performance, and higher efficiency. Pi 350 MMA CELL can be used with an asynchronous generator. 

CWF Multi ensures uniform quality and high welding speed

TIG welding non-stop
CWF Multi (Cold Wire Feeder) is a separate wire feed unit designed specifically for setups with automatic devices and for optimization of manual TIG welding. CWF Multi has automatic wire-feeding from reels – with or without pulse on the wire. The CWF Multi control panel allows the welder to switch between programs and features automatic wire-feeding synchronously with the machine’s pulse function (Pi 350-500). The CWF Multi is also compatible with Pi 200 and 250 where start/stop signals start wire-feeding along with the other wire parameters which are controlled separately from the CWF Multi.

Automatic wire-feeding
For optimization of welding quality and speed, the TIG welding hoses can be fitted with special equipment for automatic wire feeding. All Pi machines can via CWF Multi feed the correct quantity of wire into the weld pool; with or without pulse on the wire. The result is a considerable increase of welding speed and there is no risk of non-uniform welds and undesirable contact with the tungsten electrode. The CWF Multi can be used as a special solution for old Migatronic TIG machines and other makes of TIG machines. 

Automated TIG Welding Solutions
The Pi can be customised to any welding situation - including automated devices and robots. The two largest TIG inverters, the Pi 350 and 500, are obvious power sources for automatic devices/robots and prepared for communication with a robot or automatic device in a setup with the CWF Multi. 

The operating comfort follows the operator
All Pi machines for automated welding processes can be equipped with an extra identical control panel at the robot cell where the robot operator gets the same functions and facilities for setting the welding parameters.

Interfaces for all types of robots
The newly developed RCI (Robot Communication Interface) integrates the large Pi machines with most types of robots and controllers. RCI is also used for ”Retrofit” - upgrade to state-of-the-art technology of old types of robots. All RCI’s are supplied to order by Migatronic in the required configuration.

Technical Data

MACHINE TYPE	200 E DC	200 HP DC	200 AC/DC	250 E/HP DC	250 AC/DC	350 EDC
Mains voltage +/- 15%	3x400 V	1x230 V	1x230 V	3x400 V	3x400 V	3x400 V
Fuse	10 A			10 A	10 A	25 A
Fuse PFC		16 A	16 A
Mains current, eff. (PFC)	6.7 A	24 A (17.5)	25 A (18.6)	7.1 A	7.3 A	17.1 A
Power 100% (PFC)	4.6 kVA	5.5 kVA (4.0)	5.8 kVA (4.3)	4.9 kVA	5 kVA	11.9 kVA
Power max. (PFC)	6.7 kVA	9.4 kVA (5.6)	9.7 kVA (6.0)	9.0 kVA	9.0 kVA	16.0 kVA
Open circuit voltage	35 W	35 W	35 W	35 W	35 W	40 W
Current range	5-200 A	5-200 A	5-200 A	5-250 A	5-250 A	5-350 A
Open circuit voltage	95 V	95 V	95 V	95 V	95 V	95 V
Application class	S	S	S	S	S	S
Protection class	IP 23	IP 23	IP 23	IP 23	IP 23	IP 23
EN/IEC60974-1, 2, 3, 10	x	x	x	x	x	x
H x W x L, cm	36x22x52	36x22x52	36x22x52	36x22x52	36x22x52	55x25x64
Weight, kg	20	22	24	23	25	30

 

 

MACHINE TYPE	350 H DC/HP  DC	350 E CELL DC	350 AC/DC	500 E DC	500 HP DC-AC/DC
Mains voltage+/- 15%	3x400 V	3x400 V	3x400 V	3x400 V	3x400 V
Fuse	25 A	16 A	25 A	32 A	32 A
Fuse PFC
Mains current, eff. (PFC)	18.0 A	15.4 A	17.3 A	26 A	26.1/27.2 A
Power 100% (PFC)	12.5 kVA	10.7 kVA	12.0 kVA	18.1 kVA	18.1/18.8 kVA
Power max. (PFC)	16.0 kVA	13.2 kVA	15.7 kVA	33 kVA	23.3/24.2 kVA
Open circuit voltage	40 W	40 W	40 W	40 W	40 W
Current range	5-350 A	5-300 A	5-350 A	5-500 A	5-500 A
Open circuit voltage	95 V	95 V	95 V	95 V	95 V
Application class	S	S	S	S	S
Protection class	IP 23	IP 23	IP 23	IP 23	IP 23
EN/IEC60974-1, 2, 3, 10	x	x	x	x	x
H x W x L, cm	55x25x64	55x25x64	98x54.5x109	55x25x64	98x54.5x109
Weight, kg	31	31	72	33	68/77

DUTY CYCLE	200 E DC	200 HP DC	200 AC/DC	250 E/HP DC	250 AC/DC	350 E DC
100% at 20°C TIG  100% at 20°C MMA	160 A	170 A  150 A	160 A  150 A	170 A  170 A	170 A  170 A	340 A
Max at 20°C TIG  Max at 20°C MMA	200/60%	200/40%  170/40%	200/40%  170/40%	210/60%  210/60%	200/60%  200/60%	-
100% at 40°C TIG  100% at 40°C MMA	140 A	150 A  130 A	140 A  130 A	150 A  150 A	150 A  150 A	280 A
60% at 40°C TIG  60% at 40°C MMA	180 A	170 A  150 A	170 A  150 A	190 A  190 A	180 A  170 A	325 A
Max at 40°C TIG  Max at 40°C MMA	200/40%	200/40%  170/40%	200/40%  170/40%	250/35%  250/35%	250/35%  250/35%	350/40%

 

 

DUTY CYCLE	350 H DC/HP DC	350 E CELL DC	350 AC/DC	500 E DC	500 HP DC-AC/DC
100% at 20°C TIG  100% at 20°C MMA	340 A  330 A	-  300 A	340 A  330 A	400 A	475 A  475 A
Max at 20°C TIG  Max at 20°C MMA	350/95%  350/60%	-	350/95%  350/90%	500/60%	500/80%  400/65%
100% at 40°C TIG  100% at 40°C MMA	300 A  290 A	-  250 A	290 A  290 A	330 A	420 A  420 A
60% at 40°C TIG  60% at 40°C MMA	350 A  340 A	275 A	350 A  350 A	400 A	500 A  450 A
Max at 40°C TIG  Max at 40°C MMA	350/60%  350/50%	300/35%	350/60%  350/60%	500/35%	500/60%  500/55%

 

 

 

 

COOLING UNIT	MCU 1000*	MCU 1100**	MCU***
Cooling output 1 l/min.	0.9 kW	0.9 kW	1.2 kW
Tank capacity	2.0 l	3.5 l	3.5 l
Pressure, max.	3 bar	3 bar	3 bar
Flow 1.2 bar – 60°C	1.75 l/min.	1.75 l/min.	1.75 l/min.
Dimensions, H x W x L, cm	29 x 22 x 57	27 x 24 x 56	*
Weight, kg	15		*

 

 

COLD WIRE FEEDER	CWF  Multi
Wire feed speed m/min.	0.20 – 5
Wirediameter mm	0.6 – 1.6
Dimensions H x W x L, cm	27.6 x 21.1 x 27.6
Weight, kg	9.6

 

*) Separate cooling unit for Pi 200/250. 
**) Separate cooling unit for Pi 350. 
***) Integrated cooling unit in Pi 350 AC/DC /
Pi 500 DC-AC/DC. We reserve the right to make changes.