SDR-1000
CENTER HOLE GRINDING MACHINE

SIGMA TOP's latest grinder, the SDR-1000 Center Hole Grinding Machine, outstanding quality and capabilities make this machine the user's number one tool.

SDR-1000 Range of Applications
The SDR-10100 is made to grind cutting tools, cutting tool shanks, spindles, gear axles and tempered transmission shafts. It is especially suited for cylindrical grinding of products dependent on center hole geometry and precision.

Unique Motion Design
SIGMA TOP's SDR-1000 Center Hole Grinding Machine is designed with unique 3D synchronized grinding motion producing very high precision center holes. Automatically locates center, and work piece positioning is very stable.
1、Grinding wheel rotation
2、Grinding wheel spindle planetary motion
3、Grinding wheel reciprocation along line of taper surface

High Capacity Production
The SDR-1000 comes with automation procedures for high capacity production. Grinding parameters rely on actual programming demands. Grinding wheel maintenance is set within the grinding sequence.
Repeated runs requiring the same grinding parameters just need to be input once to reproduce the same high precision results. Identical results are produced every time regardless user.

1、Grinding Wheel Dressing Device
Positioned on side of the SDR-1000 is the semi-automatic grinding wheel maintenance and repair device. The device is manually rotated into the grinding wheel maintenance position. With the grinding wheel spindle automatically rotating and the diamond dresser traversing in the dressing motion, move along the grinding wheel taper. The degree of taper and precision is guaranteed. The device will not be affected by diamond cutter position or wear and tear in any way. The SDR-1000 is compatible with NC controls to accurately measure the amount of repair necessary to the grinding wheel (supports only NC series).

2、Work Piece Holder
Automatic work piece centering device simplifies set-up, and improve different work piece holder performance.

Roundness Error
Traditional grinding machines have very low precision, the center hole exhibiting an oval shape. Center hole roundness error directly reflects work piece set-up. SDR-1000 work set-up achieves considerable accuracy with roundness error down to <1μm

Axial Check Incorrect center hole positioning causes extreme errors during cylindrical grinding. The SDR-1000 grinding machine center hole positioning is very accurate, aimed at center hole axial grinding <10μm. Inner Taper Angle Large or small, all center hole inner taper angles make the work piece untrue and leading to errors. The SDR-1000 is capable of grinding highly accurate 60° angles with precision <1" common difference.

Options
With work piece running gear, work pieces can attain speeds of 48rpm and achieve higher center hole and OD concentricity. If frequent center hole circumference changes are necessary it is recommended to choose the Grinding Wheel Spindle Continuous Run Speed Adjuster.

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