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THOMPSON MODEL C 16" X 216" WAY, BROACH AND KNIFE SURFACE GRINDER SERIAL NUMBER: 12C503663 Approximate Year: 1950 Specifications: Incremental Down Feed T-Slotted Table: 216" L x 16" W x 2" H Horizontal Grinding Wheel: 20" x 6" x 12" Spindle Speed: 1,200 RPM Speeds And Feeds: Grinding Wheel Surface Feet Per Minute: 6,000 Table Feet Per Minute: 10 To 100 Vertical Feed: Electric Power (1/2 HP) 15" Per Minute Hand Operated Graduated In .0005" Cross Feed Hydraulic Automatic 1/32" To Half Of Wheel Width Hydraulic Wheel Truing: 6" Per Minute Hydraulic Rapid Traverse: 240" Per Minute Equipped With: Separate Way Grinding Attachment, Or Vertical Head Which Is Adjustable For Vee, Flat Way, Or Broach And Knife Grinding, 3 HP, 440 Volt, 3490 RPM, Currently Has 7" Wheel Which Could Be Raised By A Sub Plate To A Maximum Of 20" Under Wheel Magna-Form Model 44 Automatic Contour Dressing Attachment, Serial Number: 1255 Automatic Hydraulic Wheel Head Feeds Auxiliary Manual Feed To Wheel Head Adjustable Trip Dogs Box Of Grinding Wheels Filtration Coolant Hydraulic Pump: 10 HP, 220/440 Volts, 1140 RPM, 3 Phase Gusher Coolant Pump: 3/4 HP, 220/440 Volts, 1725 RPM, 3 Phase Grinding Wheel: 30 HP, 220/440 Volt (Currently Wired For 440 Volt, 3 Phase) This Thompson Way Grinder Was Being Used For Grinding Lathe Beds, But Can Also Be Used For Regular Grinding, Broach Grinding, Shoulder Grinding Or Knife Grinding For Large Work The Spindle Is Made Of Heat Treated Alloy Steel With Adjustable Bronze Bearing At Front And Super Precision Ball Bearings At Rear Parts Available Through Waterbury Farrell Copy Of Operator's Instruction Manual & Miscellaneous Prints Included Approximate Dimensions: Grinder: 9' 4" D x 38' W x 86" H Hydraulic Unit: 4' D x 4' 9" W x 3' 10" H Coolant Tank: 42" D x 76" W x 41" H Box Of Grinding Wheels: 38" D x 41" W x 36" H Approximate Total Weight: 45,000 Lbs. |
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