Frequency Inverter Press Type Welders

THREE PHASE HIGH FREQUENCY INVERTER PRESS WELDERS

JANDA’s DC Inverter with constant power and current control ensures high quality welds on aluminum alloys and stainless steels

FEATURES

Three phase high frequency inverter power supply operates at 1000 hz with primary and secondary constant current
Fully rectified DC secondary – virtually no secondary inductive loss
Controls incorporate Constant Current feedback to ensure exceptional reliability and the highest quality welding
Built-in weld checker simultaneously monitors current, voltage, power, welding time and detects problems
Heavy-duty reinforced frame’s withstand heavy pressures required for certifications
Compact design allows for full three phase power in a single phase frame size
Diaphragm weld head for rapid follow up on forging aluminum alloys
Low Friction c amrol guided ram
JIC Dual air system
Swivel Type lower casting with barrel lock
Adjustable in-out upper & lower arms
OPTIONAL
Retraction
Adjustable weld stroke
Tip Dress & Forge

Model PMF3-170-30 with Inverter control mounted inside frame. 170 KVA, 3 Phase

Specifications:

Model	KVA	Throat Depth	Max. Amps	Weld Force @ 100 psi	H x L x W	Capacity Mild Steel	Capacity Aluminum
PMF1-40-18	40	18”	14,000	800	60” x 54” x 30”	14 GA
PMF1-40-30	40	30”	14,000	800	60” x 66” x 30”	15 GA
PMF2-85-18	85	18”	28,000	1075	72” x 62” x 34”	0.120	0.070
PMF2-85-36	85	36”	28,000	1075	72” x 80” x 34”	0.100	0.060
PMF3-170-18	170	18”	50,000	1900	72” x 64” x 37”	0.156	0.125
PMF3-170-36	170	36”	50,000	1900	72” x82” x 37”	0.156	0.125
PMF3-170-36A	170	36”	50,000	2200	72” x 82” x 37”	0.200	0.125

Power supply connects to Inverter Transformer and secondary is rectified to D.C. This control system compensates on each pulse after the first pulse is detected, which means that compensation is 16.6 times more than that of conventional A.C. (60 HZ). Most generally, welding controls are set by using the peak values set by the AWS. RMS current is a more accurate method of setting up welding current. By using RMS values, the actual current flowing through a weld can be determined, which is much more reliable than measuring only the point at which current is at it’s peak.

Quality Assurance with Secondary Constant Current Voltage

Variations in resistance during welding are detected and fed back to the control unit. The advantage of this type of control is that reliable welds can be achieved regardless of fluctuations in power source voltage or weld defects that occur due to plating, oxides, oil or other contaminants, but with the high frequency inverter, weld current remains the same due to the ability to detect and correct current fluctuations at very high speeds. If unable to reach weld current, machine will “shut down”.

NOTE: All Mil. Spec. machines use diaphragm weld heads

JANDA Model PMFDC3-250-36R Med Frequency Inverter Press Type Welder to weld .125 to .125 Aluminum to Mil. Spec. 170 KVA Inverter Transformer, Miyachi Inverter Power Supply, 10" Diaphragm Weld Head, Retraction, Tip Dress & Forge.

D
Janda Model MFDCPT4-170-18TDF with Tip Dress & Forge and 12" Diaphragm Weld Head. Welds aluminum handles to aluminum cookware with (3) aluminum rivets.

Model PMF2-85-18 Size 2 Inverter Press Welder

Model PMFD3-170-36R with WTC-5000 - 1000 amp Inverter weld control mounted inside of frame. Tip Dress & Forge.

JANDA Model PPT2-MFDC-D-85-18PRTDF Med Frequency Inverter Platen Press Type Welder with Inverter Transformer and Miyachi Control and 8" Diaphragm Weld Head.

JANDA Model PMFDC3-250-36R Med Frequency Inverter Press Type Welder for military specification welding. 170 KVA Inverter Transformer and Intertron Model 3000-800 control with 10" Diaphragm Weld Head.


	Forward Position

Two JANDA 170 KVA Inverter Press Type welders for welding various width aluminum (.090 to .090) panels. Both 36" & 18" throat welders are mounted on common base. Machine on right adjusts in and out.

Model PMFD3-170-36R 170 KVA Press with 8" Diaphragm Weld Head.

Model PMF3-170-72-MP Size 3 Inverter with 10" bore upper and 12" bore lower adjustable weld heads. 72" long throat.

Model PPMFDC-85-18 Platten Press Type

Model PMF1-40-18 - 40 KVA, 18" Throat, Platen Press Type