ESG-1A 2A818

 

High precision surface grinder : semi-automatic

 

ESG-1A~2A818( 203 x 460mm )

 

 

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MODEL ESG-1A~2A818
Table Size 203x460mm(8×18″)
Max.grinding length Longitudinal 480mm(19″)
Max.grinding width Crosswise 228mm(9″)
Max. distance from table surface to spindle centerline 460mm(18″)
Stadard magnetic chuck size 200x450mm(8×18″)
Longitudinal movement of table Max. travel, hydraulic 480mm(19″)
Max. travel, manual 510mm(20″)
Max. travel,infinitely variable 60HZ,5-25m/min,50HZ,5-20m/min
Cross transverse travel Auto transverse increment 1-10mm(0.04″-0.4″)
Max. auto transverse travel 235mm(9 1/4″)
Max. manual transverse travel 250mm(9 3/4″)
Handwheel per revolution 5mm(0.2″)
Handwheel per graduation 0.02mm(0.0005″)
Sheelhead vertical infeed Automatic infeed
Step feed (jog)
Rapid travel, Approx
Slow travel, Approx
Handwheel revolution 1mm(0.05″)
Handwheel graduation 0.005mm(0.0001″)
Grinding spidle drive Speed 60HZ,3450 R.P.M.  /  50HZ,2850 R.P.M.
Power rating 2.0HP
Standard grinding wheel Diameter 203MM(8″)
Width 12.7mm (1/2”), MAX. 19mm (3/4”)
Bore 31.75mm(1 1/4″)
Hydraulic motor Power rating 1HPx6P
Crossfeed motor Power rating 40Wx6P
Elevating motor Power rating 40Wx6P
Floor space Total space required 1810x1285x1680mm(71″x50 1/2″x66″)
Weights Net weight, Approx. 1170KGS(2574LBS)
Gross weight, Approx. 1340KGS(2948LBS)
Rated power, Approx 3.0HP
Packing dimensions L x W x H 1890x1540x1930mm(75″x61″x76″)

GENERAL FEATURES

  1. High Precision Cartridge Wheel Spindle

High precision cartridge type spindle is supported by two preloaded precision angular contact ball bearings & one NN type Roller bearing and driven by V3 class motor that allow high accurate grinding performance. (618/818 series are driven by 2.0HP motor.)

  1. High Anti-Wear Guide Ways

The saddle rests on precision hand-scraped double V ways, and the table rests on precision hand-scraped V and flat ways which coated with “TURCITE-B”. These guide ways are equipped with auto lubrication to resist wear of guide ways, plus lasting accuracy and damping.

  1. High Rigid Casting Construction

Machines are casted with high grade casting iron with heavy walls and reinforced ribs to provide excellent rigidity and damping.

  1. Enlarged Column And Base

Enlarged column and base create high stability and rigidity. The height of column is increased up to 18″ (460mm) from table surface to the center line of spindle.

  1. Auto Lube System

Automatic lubrication system is applied as standard to ensure sufficient lubrication at lead-screws and guide-ways for more longevity.

  1. Longitudinal & Cross Drive

For all models, except 618 & 818 handfeed, the longitudinal movement is driven by hydraulic system; for 2A, 3A, ASD series, the cross movement is driven by motor for more accurate increment feeding.