Liberty Machinery Company You are looking at a No. A21/2, MIKRON Bowl Feed, 1.8" Max Diameter, Stack/Load Attachment Horizontal Gear Hobber Serial No. 956-39-01-023Condition - UsedNew - 1980 SPECIFICATIONS:
Maximum Diameter that can be Hobbed @ 24 mm (.95") 20 mm (.79")
Maximum Diameter that can be Hobbed @ 18 mm (.71") 46 mm (1.8")
Travel of Hob - Maximum 50 mm (1.97")
Length that can be Hobbed - Maximum 45 mm (1.77")
Length that can be Clamped - Maximum 75 mm (2.96")
Distance between Work Arbor & Tailstock Spdl. - Max. 110 mm (4.34")
Swivelling Range of Hob Spindle - Maximum +/- 5 Degrees
Axial Displacement of Hob Spindle - Maximum 10 mm (0.4")
Sinking of the Hob Spindle 20 mm (.79")
Number of Teeth with Normal Indexing Gear Train 5 - 399
(7) Hob Speeds w/Geometric Progressive Ratio of 1.26 400 - 3200 RPM
Axial Feed (Mechanic) per Workpiece Revolution .002" - .024"
Radial Feed (Hydraulic) per Minute 0 - .591"
Approximate Weight 460 kp (1,014 Lbs.) Motors:
Hydraulic System 0,25 HP (1500 RPM)
Coolant Pump 0,12 kW (3000 RPM)
Mikron Type 90 Fully Automatic Stacking & Loading Attachment
Deburring Attachment SPECIFICATIONS FOR STACKING & LOADING ATTACHMENT:
Capacity of the Pot for Blanks 2, 5 - 10 mm Diameter 0,25 litre
Capacity of the Pot for Blanks 10 - 20 mm Diameter 0,8 litre
Blank Diameter - Maximum 20 mm
Blank Thickness - Maximum 1/2 Workpiece Diameter
Length of Stack - Maximum 20 mm
Number of Blanks per Stack Depends on Stack Length
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