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MACHINES

20-4


 


Fellows 20-4 with 7" riser


Fellows 20-4 with swing away center support


Fellows 20-6 with 24" riser


Swing away center support

Fanuc control with custom
screens and operated panel

 

Principle Specifications

• Maximum Pitch Diameter (External).....................20"
• Maximum Pitch Diameter (Internal)).....................20"
• Maximum Face Width, External/Internal)...............4"
• Maximum Diametral Pitch, Spur.)....................4/5DP
• Maximum Diametral Pitch, Helical )....................5DP
• Bore Through Work Spindle)............................9.055"
• Cutter Spindle Diameter)..................................3.543"
• Maximum Helix Angle with Special Guides )..45 deg.
• Distance Between Work Table and Cutter Spindle)....................................................................12.5"
• Maximum OD of Fixture).......................................19"
• Height of Machine)....................................................9'
• Length of Machine)....................................................8'
• Width of Machine)...................................................78"
• Net Weight of Machine (approx.).............18,000 lbs.

Standard Equipment

• Standard Straight Spur Guide
• 15 Hp AC main drive stroking motor. Stroking speed from 50-400 (other SPM available upon request)
• Programmable 15Hp AC variable drive to control stroking speed
• The CNC will control the following axis:
     • Work table rotation (no change gears required)
     • Cutter spindle rotation
     • Work table infeed
• Cutter spindle stroking speed
• Centralized auto lube continuously monitored by the computer
• Machine comes as a complete unit and requires minimal setup (power, oil and coolant)
• Coolant Sump in Base
• Removable chip basket
• Crowning feature via back off cam
• Cutter Elevation
• Fully air condition electrical cabinet

Programmed Features

• CNC controller has Macro screen for "Operator friendly" question and answer setups (NO PROGRAMMING NEEDED)
• One to four cut selected by CNC controller
• Each cut has individual parameters for:
– Depth of cut
– Infeed rate
– Stroking speed
– Rotational feed rate
– Degree of work rotation
• Setups can be stored in nonvolatile memory using a setup number between 1-9999
• Recut mode allows the operator to bring the part into size without changing the programmed parameters
• Optional hydraulic clamping and tail stock can be automatic or manually controlled

Optional Equipment

• True cutter positioning (2.5" travel)
• Chip conveyor
• Hydraulic work clamping
• Tailstock (standard)
• Tailstock (swing away)
• 5" stroke length
• 6" stroke length
• Full safety enclosure
• 7" riser increasing the distance between the cutter spindle and the table to 16"
• 11" riser increasing the distance between the cutter spindle and the table to 20.5"
• 21" riser increasing the distance between the cutter spindle and the table to 30.5"
• Other risers - please call.

Warranty

One year warranty on parts and labor. Machine to be supplied with unconditional 30-day money back, return privilege warranty. Warranty is not transferable.
Second year warranty (optional). 






Electrical cabinet with Fanuc drives