Description Overview Two Zinser spinning frames available Both frames are manual type Each frame has an Electrojet blower running on line Frame 1 Specifications Model: 319.L Year: 1989 400 spindles Ring diameter: 52 mm Gauge: 82.5 mm Frame 2 Specifications Model: 421.E Year: 1992 400 spindles Ring diameter: 52 mm Gauge: 82.5 mm