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Date: 04/02/01 at 2:25 PM
Posted by: Don Ruth
E-mail: don.ruth@ejbrooks.com

Location: Newton NJ USA

MFG: UNITEK MIYACHI CORP
2 KHZ High Frequency Resistance Welding unit
consisting of:

HF2/230 Power Supply
X3/4000A Transformer

WITH CABLES

purchased new March 1999

was used for spot welding metal parts together inside a progressive metal die at speed (IN-DIE WELDING)
SPECS HF2 POWER SUPPLY
three phase delta, 230 VAC +/- 13%, 50/60 Hz
2 khz pulse width modulated (PWM) DC welding control
digital adaptive feedback response every 250 microseconds
can monitor weld current, voltage, or power
microprocessor based control circuitry compensates for changes
in work piece resistance, load inductance, and changes in line voltage
dimensions 15 inch L x 10.5 inch W x 8.5 inch H
approx weight 42 lbs

GENERAL SPECS: TRANSFORMER X3/4000A
nominal AC input voltage= 208/240
input KVA (50%) duty cycles= 9
number of primary taps= 1
turn ratio= 46:1
max unloaded output voltage (V)= 6.5
max output current (A) =4,000
duty cycle (%) at max current= 6
dimensions: 7.2 in H x 7.2 in W x 14.5 in D
approx weight 29 lbs

more info on unit:
www.unitekequipment.com
see products, High Frequency Inverters

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