Heald 273 A ID Grinder

AI Overview

The Heald 273A is a universal internal grinder with a 24-1/2 inch swing over the table and a maximum grinding stroke of 16 inches. It features variable workhead speeds from 0 to 500 RPM and table speeds from 0 to 18 FPM. 

Key Specifications:

• Swing over table: 24-1/2 inches (maximum)
• Swing inside coolant splash guard: 20 inches (maximum)
• Grinding stroke: 16 inches (maximum)
• Workhead speeds: 0 to 500 RPM (variable)
• Table speeds: 0 to 18 FPM (variable)
• Wheelhead motor: 5 HP
• Workhead motor: 1-1/2 HP
• Hydraulic motor: 1/2 HP
• Coolant motor: 1/4 HP
• Electrical: 220/440/3/60
• Approximate dimensions: 91" x 96"
• Approximate height: 75"
• Approximate weight: 6,200 lbs
• Table travel: 20 inches (maximum)
• Workhead cross travel: 17-1/2 inches
• Workhead longitudinal adjustment on bridge: 12 inches
• Wheelhead slide longitudinal travel: 20 inches
• Wheelhead slide cross travel: 1-1/2 inches
• Workhead flange to wheelhead slide: 0 to 30 inches
• Angular adjustment of workhead: 90 degrees 

Additional Features:

• Hydrostatic ways: Provides smooth and accurate table movement.
• Heald Red Head grinding spindle: Known for high speed and precision.
• Table mounted dresser: For dressing the grinding wheel.
• 12-inch extended base: Offers increased work capacity.
• Workhead sine bar: For precise angular adjustments.
• Coolant system: Includes a coolant tank and pump for efficient cooling.
• Cross sliding workhead: Allows for versatile setups