| MODEL | ESG-3A1228 | |
| Table Size | 305x712mm(12×28″) | |
| Max.grinding length | Longitudinal | 712mm(28″) |
| Max.grinding width | Crosswise | 330mm(13″) |
| Max. distance from table surface to spindle centerline | Standard column:630mm(24 3/4″); Optional high column:720mm(28 5/16″) | |
| Stadard magnetic chuck size | 300x700mm(11 3/4×27 1/2″) | |
| Longitudinal movement of table | Max. travel, hydraulic | 760mm(30″) |
| Max. travel, manual | 830mm(32 9/16″) | |
| Max. travel,infinitely variable | 60HZ,5-25m/min,50HZ,5-20m/min | |
| Cross transverse travel | Auto transverse increment | 1~25mm(0.04″-1″) |
| Max. auto transverse travel | 350mm(13 3/4″) | |
| Max. manual transverse travel | 380mm(15″) | |
| Handwheel per revolution | 5mm(0.2″) | |
| Handwheel per graduation | 0.02mm(0.001″) | |
| Sheelhead vertical infeed | Automatic infeed | 0.001-0.04mm(0.00005-0.002″) |
| Step feed (jog) | 0.001mm(0.00005″) | |
| Rapid travel, Approx | 150mm/min | |
| Slow travel, Approx | 6mm/min | |
| Handwheel revolution | 1mm(0.05″) | |
| Handwheel graduation | 0.005mm(0.0005″) | |
| Grinding spidle drive | Speed | 60HZ,1750 R.P.M.; / 50HZ,1450 R.P.M. |
| Power rating | Standard:5HP; Optional:7 1/2HP,10HP | |
| Standard grinding wheel | Diameter | 355mm(14″) |
| Width | 50mm(2″) | |
| Bore | 127mm(5″) | |
| Hydraulic motor | Power rating | 3.0HPx6P |
| Crossfeed motor | Power rating | 80Wx6P |
| Elevating motor | Power rating | 1/4HPx6P |
| Floor space | Total space required | 2950x1970x2050mm(116x78x81″) |
| Weights | Net weight, Approx. | 3020KGS(6644LBS) |
| Gross weight, Approx. | 3520KGS(7744LBS) | |
| Rated power, Approx | 8 1/2HP(Spindle motor:5HP)
11HP(Spindle motor:7.5HP), 13 1/2HP(Spindle motor:10HP) |
|
| Packing dimensions | L x W x H | 2500x2290x2200mm(99x90x88″) |
GENERAL FEATURES：
1.Column:
Enlarged, honeycomb-ribbed column especially suitable for heavy duty grinding.
2.Construction:
Construction of table, saddle and base is casted with high grade iron, strongly ribbed.
3.Spindle:
Enlarged spindle set is supported by four preloaded precision angular contact Ball bearings for heavy duty.
4.Slideways:
Vertical, cross (double vess) and longitudinal (one vee &one flat) slideways are coated with Turcite-B, provides stable movement and durable accuracy.
5.Automatic Continuous Lubrication System:
All slideways and screws are fully oiled by automatic continuous lubrication system to eliminate wears on slideways & screws.
6.Cross Feed:
Ball screw for cross travel, powered by AC motor.
7.Hydraulic Table:
Table speed ranges 5-25m/min. With rack and pinion table drive for hand operation.
8.Proximity Switch:
Provide built-in-type (hidden) proximity switch, features safe and easy operation.
9.Table Speed Control:
Presettable hydraulic table speed control allows operator to pre-set speed rate, enable to get same speed rate when engaging hydraulic table every time.
10.Hand Wheels:
Zero-setting slip-ring with vernier on vertical handwheel, and vernier on crossfeed handwheel.
