Column Moving Type NC Surface Grinding MachineLarge sized surface
grinder(grinding machine) with PLC & HMI interface
Model: SG-81160FR, SG-81220FR, SG-81300FR,
SG-81400FRFeatures:1. Double walled column construction, providing high rigid support. Adopt counterweight
balance, making the machine moving stably, and reducing the load of the ball screw, keeping the accuracy for long time.
2. Adopt rectangular guideway coated with ZA30-C
zinc-based alloy, to get low friction coefficient, good abrasive resistance and high rigidity.
3. Adopt the Flat-V type guideway to set good guidance quality on longitudinal and transverse, precision scraping to keep stable work accuracy by hand.
4. The transverse and vertical movement are driven by AC servo motor, and the electronic
hand wheel (MPG) instead of the tradition mechanical hand wheel, to get high accuracy and easy operation.
5. The independent and large capacity integrated hydraulic station equipped with air cooling and pressurizer, isolate heat and vibroseis, to provide excellent power for precision grinding.
6. The wheelhead spindle use the hydrostatic bearing with high rigidity (high precision ball bearing for export), which can provide the power force together with 18.5kw motor, suitable for the heavy machining. The spindle rotary is supported by rigidity oil layer without wear; ensure the high precision and long life span.
7. Hydraulic drive for the work table, after adjusting meticulously, the table moved stably with little impact.
8. Adopt SIEMENS touch operation panel. It makes the operation simple and interesting by using power and friendly human-machine interface.
9. Special design, elegant appearance, good stability.
***Standard Accessories:Coolant tank, Wheel dresser base, Flange and wheel extractor, Standard grinding wheel, Balancing arbor, Balancing stand, Working lamp, Leveling wedge and foundation bolt, PLC grinding controller, Build in electro magnetic chuck controller, 2 axis feed control electro hand wheel.
***Optional Accessories:Electro magnetic chuck, Hydraulic parallel wheel dresser, Coolant tank with magnetic separator, Coolant tank with paper filter, Coolant tank with magnetic separator and paper filter.
SpecificationUnitSG-81160FRSG-81220FRSG-81300FRSG-81400FRWorking AreaTable size (W x L)mm810x1600810x2200810x3000810x4000Max. grinding dimension (W x L)mm810x1600810x2200810x3000810x4000Max. spindle to table distancemm900 (1150)Electro magnetic chuck (optional)mm800x800x2800×1000x2800x1000x3800x1000x4Max. loading capacity ( include chuck)kg20002400350055003 axis feedTable longitudinal movement speedm/min5~25Wheel head cross movementAuto. feedmm/t1~30Rapid speedm/min0.05~3Feed of electro handwheelmm/gr0.005Wheel head vertical movementAuto. feedmm/t0.005~0.05Rapid speedm/min0.05~2Feed of electro handwheelmm/gr0.005Grinding wheelSize ( OD x W x ID)mm500 x 75 x 305MotorSpindle motorkw18.5Hydraulic pump motorkw7.5Elevating servo motor and cross feed servo motorkw3Total rated powerkw34Dimensions and WeightFloor space (L x W)mm4700x35006000x35008200x360010000x4000Gross Weightkg10500130001400016000
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