Jones & Lamson Internal-External Gage Quality Thread Grinder
Stock Number: 048-027
Model: No. 36" x 72"
Serial No. 150000
Price: $32,500
One of a kind machine specially built for the U.S. Government to grind thread and ring gages and other parts to extremely close tolerances..
Jones & Lamson built and sold two of these machines to a Government arsenal. They found they did not need a second machine. It was hardly used, if at all, when we bought it.
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| Specification | Description |
|---|
| Max. Work Swing: | 36" |
| Max. Center Distance: | 72" |
| Hole Size Thru Work Head: | 4-1/2" |
| Capacity: External Grinding | |
| Max. Thread O.D.: | 27" |
| Max. Thread Pitch Dia.: | 26" |
| Min. Thread Pitch Dia.: | 0 |
| Max. Thread Length: | 60" |
| Max. Wheel Dia.: | 20" |
| Capacity: Internal Grinding | |
| Max. Thread Pitch Dia.: | 26" |
| Max. Thread Length: | 24" |
| Max. Wheel Dia.: | 14" |
| Min. Wheel Dia.: | 6" |
| Helix Angles, Internal: | ±15 Degrees |
| Machine Proper Weight, approx.: | 50,000.00 lbs. |
| Helix Angles, External: | ±10 Degrees |
| Work Speeds, Variable: | 5 - 20 RPM |
| Taper Grinding: | Internal & External Taper |
Equipped With:
Separate Internal and External Slide-Away Grinding Heads
Pitches: Virtually any pitch, English or Metric can be ground by using standard J & L change gears.
Pantograph Type Form Wheel Dresses - Internal & External Spindles
Complete Blue Prints and Operations Manual
Internal and External Relieving Capability
Delpark - Olson Magnetic Coolant Filter
Auto Wheel Dressing Compensator
Single and Multiple Start Threads
Long and Short Internal Spindles
Fostrade Coolant Cooler
Backlash Compensator
Tailstock Assembly
36" Dia. Face Plate
Automatic Sizing
24" 4 Jaw Chuck
Change Gears
7 1/2 HP DC External Spindle Motor
3 HP DC Internal Spindle Motor
2 HP DC Headstock Drive
Exceptional, Like New Condition
Industrial Surplus
337 Berlin Turnpike
Berlin, CT 06037
(860) 828-3541
(860) 828-6747
sales@industrialsurplus.com
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