Welda-Round 500 The MODEL 500 is the unit of choice for your applications that require extreme machine rigidity and accuracy. The MODEL 500 bridges the gap between the MODEL 300 and the large, dual torch MODEL 600. FEATURES Programmable logic controls DC rotation drive Adjustable operator console Machined tooling arm 150 pound head clamping force Adjustable 8-inch vertical stroke Integral wire drive 50-550 IPM Standard air cooled torch Rack and pinion torch adjuster 500 amp rotary ground at 70 percent duty cycle Ground fault indicator 0.7 to 14 RPM rotation speed Shipping weight 950 pounds STANDARD OPTIONS Rise and Fall contour assembly Water cooled torch Skip or Partial weld Auto head raise and lower Arc screen CUSTOM CONFIGURATIONS AVAILABLE Digital controls Special frame configurations Powered index positioner base Tooling and factory run off