Description and Specification for Lab Tenders
Astra Scientific Surface Grinding Machine.
• Machine s bed has unique design in which the Table and the Upright are aligned exactly at right angles.
• Saddle is guided on ground V-ways resting for high precision and smooth operations.
• Wheel Head is mounted on a constructed vertically column supported
by Preloaded precision bearings. Driving pulleys are dynamically
balanced.
Max. Table Size (mm) 200 x 450 300 x 450 200 x 600 300 x 600
Max. Longitudinal Travel (mm) 525 525 675 675
Max. Cross Travel (mm) 240 350 240 350
Max. Spindle Center Height above Table (mm) 400 400 400 750
SPEED AND FEEDS
Max. Table Speed (m/min) 15 1.5 to 15 1.5 to 18 1.5 to 18
Power Cross Traverse (m/min) 1000 1000 1000 1000
Auto Cross Feed at each Table reversal
(infinitely variable) (mm) 0.5 to 10 0.5 to 10 0.5 to 10 0.5 to 10
Least Count of vertical feed head wheel (mm) 0.002 0.002 0.002 0.002
GRINDING HEAD
Size of Grinding wheel (mm) 200 x 20 x 31.75 200 x 20 x 31.75 250 x 25 x 76.2 250 x 25 x 76.2
Power of spindle motor (HP) 2 2 3 3
Speed of grinding spindle (RPM) 2800 2800 2800 2800
HYDRAULIC SYSTEM
Working Pressure (Kg/cm) 20 20 20 20
Motor (HP) 2 2 2 2
Tank capacity (Ltrs) 75 75 75 75