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http://www.industrialsurplus.com/images/islogo_lg.gif JONES & LAMSON 36"x72" INTERNAL-EXTERNAL THREAD GRINDER Model No 36 x 72 , Serial No. 150000, New 1957 Jones & Lamson Internal-External Gage Quality Thread Grinder One of a kind machine specially built for U.S. Government. Designed and built to grind with the accuracy necessary for final inspection ring and plug gages. This machine is in like new condition, with less than 100 hours actual use. At the time of construction, this machine far exceeded any thread grinder ever built in size and accuracy; as far as we know, it still does. Pitches: Virtually any pitch, English or Metric can be ground by using Helix Angles, Internal: ±15 Degrees Helix Angles, External: ±10 Degrees Work Speed: 5 - 20 RPM, Infinetely Variable Taper Grinding: Internal & External Taper Single and Multiple Start Threads Internal and External Relieving Capability Pantograph Type Form Wheel Dresses - Internal & External Spindles Separate Internal and External Slide Away Grinding Auto Wheel Dressing Compensator Long and Short Internal Spindles Delpark - Olson Magnetic Coolant Filter Complete Blue Prints and Operations Manual 7 1/2 HP DC External Spindle Motor 3 HP DC Internal Spindle Motor Machine Proper Weight, Approx.: 50,000 lbs All Items Subject to Prior Sale Be Sure to Verify Specs & Condition Prior to Purchasing CONTACT US: We are available to answer your calls and inquires, Monday thru Friday, 8am - 5pm, at , or you can email us at http://www.industrialsurplus.com/images/building.jpg |