TW: Resistance-Welding
Press Welder: EPE Spot Projection Welders
Single Phase • Press Type
EPE, RWMA Size 3 gives you simplified versatility and dependability.
• It allows you to switch from spot welding to projection welding with an absolute minimum of changeover time.
• Taylor-Winfield quality is reflected throughout.
Standard Features (Included in Base Price) 
• A hardened and ground steel ram, guided by eight anti friction rollers to insure positive alignment, minimize deflection and reduce friction.
• Exceptionally low friction air cylinders, specify size. 8" Bore -for 12" mach-only • 7" Bore -for 12" & 18" mach-only • 6" Bore -For 12", 18" & 36" mach-only.
• Spot welders available in 18, 24 and 36 inch throat depths, Projection welders in 12, 18 and 30".
• Four inch ram stroke.
• Air pressure regulators and gauges (with force chart) and air line lubricator.
• Speed control valves to control ram movement up and down.
• Air exhaust muffler.
• Three transformer sizes: 150, 200, 230, 250, and 400 kva operating on either 230 or 460 volts, 60 Hz (not both).
• Built-in 8 step tap switch.
• Single stage foot switch.
• Style #1 upper and lower T-slotted platens. Style #5 upper (2-3/4" dia) and lower (3" dia) and lower (3-1/4" dia at front tapered to 5" dia at rear) solid round horns with electrodes and holders.
• Lower horn brace (Only on Style #5 welders of 36" spot throat depth or more).
• Hydraulic jack for raising and lowering the knee.
• Hoses for cooling water exit at rear of frame for connecting to supply and drain. Two instruction manuals.
• Standard Paint
Specifications for EPE Spot / Projection Welder:
Mechanical Specifications
Machine Type |
|
Style 1 |
Style 1-A |
Style 5 |
Horn Size |
Inches Upper |
- |
3 Sq. |
3 Dia. |
Horn Adjustment |
Inches In |
- |
.5 |
0 |
Platen Spacing Inches |
Head Up Knee Up |
10 |
10 |
- |
Horn Spacing Inches |
Head Up Knee Up |
- |
4 |
9 |
Platen Dimensions |
Inches |
9” Sq. T Slots on 6” Centers |
Electrode Holders |
Upper |
1.5 Inch Barrel, 8 inches long |
Electrodes |
|
RWMA B2710, Class 2 Alloy, 2.5” long. #7 RWMA Taper |
Cylinder Stroke |
|
4 |
Air Pressure, |
Without Airlock |
90 ***** |
Free Air Consumption |
9” Cylinder |
.470 |
Typical Welding Speed |
|
25 - 50 spot welds per minute ******* |
Throat Depth |
Inches |
Projection |
Spot |
|
12 |
18 |
30 |
18 |
24 |
36 |
|
Standard Operating |
Without Airlock |
12 |
10 |
9 |
9 |
9 |
9 |
Maximum Force, Lbs. |
Without Airlock or |
9200 |
6280 |
5250 |
5250 |
5250 |
5250 |
Minimum Force, Lbs. |
|
1050 |
775 |
650 |
650 |
650 |
650 |
* Lower horn tapered: 3.25" dia. at front, 5" dia. at rear.
** If double pressure airlock is used, initial force is 40% of final force - Forge delay timer is required.
*** Since operating cylinder bottoms in operation, adjustable or adjustable-retractable cylinder is recommended.
**** 5" and 6" stroke available. Working stroke approx. .25" less than cylinder stroke for electrode wear.
***** To obtain collapse rate of airlock.
****** Maximum at 80 psi - operating cylinder only.
******* Variance in speed dependent upon cylinder size and stroke of welding two pieces of .060" material.
Electrical Specifications
150 KVA |
Throat Depth Inches |
|
12* |
18** |
18** |
24 |
30 |
36 |
Secondary Volts, Maximum |
|
10.5 |
10.5 |
10.5 |
10.5 |
10.5 |
10.5 |
|
Current Output, Amperes, |
|
63,700 |
49,100 |
47,300 |
38,400 |
32,400 |
27,600 |
|
Power Demand, KVA, Maximum, ***** |
|
669 |
515 |
496 |
404 |
340 |
290 |
|
Power Factor, Short Circuit % |
|
33.5 |
30.5 |
30.5 |
28.0 |
25.5 |
23.2 |
|
Duty Cycle at above KVA Demand % |
|
2.52 |
4.24 |
4.58 |
6.88 |
9.76 |
13.4 |
|
Primary Amperes at Maximum Demand |
460 V. |
1520 |
1170 |
1130 |
915 |
775 |
660 |
|
|
** Measured as a spot welder .
*** Not Recommended.
**** SCR sizing for 50 cycle maximum conduction at listed duty cycle. Maximum water temp 1-4 degrees F. (40 degrees C).
Short circuit values (+/- 10%), measured at 8" platen spacing with 3" diameter copper shorting bar on centerline of platens of projection welders; and at 8" horn spacing and copper shorting bar substituted for electrode holders in spot welders.
Control operating voltage will be same as welder power supply unless otherwise specified. Solenoid Valve voltage will be 115 volts.
The Taylor-Winfield Corporation recommends Gould Shawmut Fuse Type A4BX.
The Taylor-Winfield Corporation recommends the above indicated fusible isolation switch and cable sizes, but purchaser should check local and state electrical code requirements.
Force System Options
• Gravity ram drop with electrical interlock
• Airline filter with bowl trap and automatic drain.
• 4-1/2" air gauge calibrated in pounds weld force.
• Precision air pressure regulator.
• 5 or 6" non-adjustable stroke cylinder (in place of 4" stroke)
• Adjustable stroke cylinder, 4" , 5" or 6" maximum stroke (specify size 7", 10quot; or 12").
• Adjustable-retractable stroke cylinder, 4" , 5" or 6" (specify) maximum stroke, foot switch and solenoid valve controlled (specify size 9", 10" or 12"). Seal-off airlock, single pressure (includes precision air regulator and air tank).
• Seal-off airlock, double pressure fixed ratio (includes precision air regulator and air tank).
• Variable ratio double pressure airlock, in place of fixed ratio.
• Lockout mechanism for single or double pressure airlocks.
Electrodes and Horn Options
• Standard (90 degree) upper and lower square horns, electrode holders, and electrodes to convert Style 1 to Style 1-A.
• Standard (90 degree) upper and lower round horns, electrode holders, and electrodes to convert Style 1 modified to Style 1-A modified.
• Universal (90 degree vertical- 22-1/2 degree off vertical) upper and lower square horns, electrode holders and electrodes to convert Style 1 to Style 1-A.
• Universal (90 degree vertical - 22-1/2 degree off vertical) upper and lower round horns for Style 5 welder.
• Lower horn brace (Standard on Style 5 welders of 36" spot throat depth and larger).
Transformer Options
• Series-Parallel tap switch (Low-high ranges).
• Re-connectable dual voltage (220/440) welding transformer.
• Welding transformer to 50 Hz operation.
• Special transformer for full 220v output at 208 v.
• Special kva (or Group 2) transformer.
Cooling System Options
• Water system with inlet and outlet manifolds, flow adjusting valves, with or without flow indicators.
• Quick change hose couplings in hoses to both electrode holders.
• Water saver valve, solenoid operated by heat on/off switch.
• Automatic solenoid operated water shut-off valve.
• Water system with inlet manifold, open drain water tunnel and flow adjusting valves.
Tooling Options
• Mechanical safety ram latch with non-repeat, non-tie down palm buttons (For use with standard cylinder only).
• Manual tool slide with limit switch, Style 1 only (dual palm buttons required).
• Tilt-out knee, Style 1 only (dual palm buttons required).
Initiation and Control Options
• Two stage foot switch
• Dual non-repeat, non-tie down palm buttons - one stage with or without foot switch and keyed selector switch.
• Additional foot switch, for use with dual weld schedule.
• Heat on/off switch.
• Mounting of welder control, inter-connection and system test.
• T-W solid state controls.
Convenience Options
• Special paint (Specify brand, type and color).
• Additional instruction manuals.
• Export boxing.
Accessories and Controls
• Taylor-Winfield has the unique capability of building its own high quality solid state microprocessor welding controls.
• To avoid installation and maintenance problems, controls and accessories are designed specifically for T-W welders.
• We assume full responsibility for the complete coordinated equipment package.
• A wide selection of various accessories are applicable to EPE welders including the latest safety features to meet OSHA requirements.
• Sales and Service Representatives in principal cities.