Granite Equipment Base · Custom Machining Success Cases (Practical Edition)
Case 1: Integral Custom Machined Granite Base for CMM
Product Application:
High-precision bridge-type CMM base with hollowed-out weight-reducing slots, multiple steps, mounting bosses, guide rail mounting surfaces, embedded threaded inserts, and wiring holes.
Processing Challenges:
Large area thin-walled hollowing, prone to chipping and deformation.
00-grade perpendicularity and parallelism requirements for multiple surfaces.
Hole spacing accuracy ±0.02mm, embedded parts prone to skewing.
Process Solution:
High-quality Jinan Green rough block, crack-free and free of white veins.
After rough milling all slots, holes, and steps, undergo 72-hour constant temperature heat treatment at 55°C.
Diamond tool layered climb milling, all internal corners with R5 fillets.
Wet cooling, leaving 0.4mm stock for precision grinding.
Mechanical manual precision grinding, flatness ≤2μm.
Finished Product Effect:
Stable precision, no deformation, export-grade quality, customer long-term repeat orders in bulk.
Case 2: Granite Beam Column for High-Precision Gantry Engraving Machine (Unusual Cantilever Structure)
Product Application:
CNC gantry engraving machine, long cantilever beam, L-shaped column, unusual guide surfaces, and side mounting surfaces.
Processing Challenges:
Long cantilever, thin-walled, prone to vibration and breakage during machining.
Difficult to grind inclined and side unusual surfaces.
Uneven stress distribution, precision drift over long-term use.
Process Solution:
48-hour heat treatment after rough machining.
Low-speed, small-cut deep machining for cantilever sections, climb milling only (no conventional milling).
Three-axis linkage milling for unusual inclined surfaces, followed by manual fine grinding.
All edges chamfered C2 to eliminate chipping.
Finished Product Effect:
Replaces cast iron, vibration-free and deformation-free, significantly improved machine running stability.
Case 3: Precision Granite Base for Semiconductor Wafer Inspection Equipment
Product Application:
Semiconductor optical inspection platform, ultra-thin tabletop, unusual hollowing, high-precision positioning slots, vacuum mounting surface, non-magnetic requirement.
Processing Challenges:
Ultra-high precision 000-grade, micron-level flatness.
Many hollowed-out sections, complex structure, extremely high risk of chipping.
Stone must be free of impurities and hidden cracks.
Process Solution:
Selected high-density Indian Black / Jinan Green material.
Diamond tools throughout, layered cutting with fillet transitions.
Constant temperature heat treatment ultra-long static stabilization.
Wet cooling throughout, no dry cutting.
Finished Product Effect:
Flatness within 1μm, meets semiconductor cleanliness, stability, and non-magnetic requirements.
Case 4: Granite Machine Frame Base for Laser Cutting Machine (Large-Sized Lightweight Custom Piece)
Product Application:
Overall base for fiber laser equipment, super large size, dense weight-reducing slots, stepped surfaces, and clusters of mounting holes.
Processing Challenges:
Large size, uneven stress distribution, prone to warping.
Many weight-reducing slots, severe chipping at corners.
Many holes, strict hole spacing tolerances.
Process Solution:
Overall rough block cutting, 72-hour heat treatment after rough milling.
All internal slot corners with R4-R6 fillets.
Layered cutting, low feed rate, high spindle speed, climb milling.
Precise positioning and adhesive fixing of embedded parts.
Finished Product Effect:
Good overall machine rigidity, anti-resonance, stable laser cutting precision.
Case 5: Granite Custom Platform for Automated Dispensing Machine
Product Application:
3C electronics dispensing equipment, unusual bosses, beveled surfaces, counterbores, multi-directional mounting references.
Processing Challenges:
Small, complex unusual shape, difficult to locate and clamp.
Many edges and corners, extremely prone to chipping.
Multiple reference surfaces, difficult to control perpendicularity.
Process Solution:
Vacuum suction fixture for clamping to reduce vibration.
All hole openings chamfered, leaving stock for contour finishing.
24-hour heat treatment for small parts.
Finished Product Effect:
Stable in batch production, almost zero chipping rate, customer continues to reorder.
Case 6: Lithium Battery Equipment Electrode Sheet Inspection Granite Irregular Base
تطبيق المنتج
New energy lithium battery inspection equipment, ultra-thin irregular tabletop, pren guide rail grooves, side mounting structure.
Processing Challenges
Thin-walled structure prone to breakage
High-speed long-term operation requires high precision and no deformation
Process Soon
Thickened edge design, optimized customer drawings
Rough machining → Thermal aging → Precision machining → Precision grinding
Full-process fillet chamfering process
Finished Product Effplaces metal parts, corrosion-resistant, deformation-free, suitable for new energy high-speed inspection.
Our company specializes in the machining of granite irregular equipment bases featuring large dimensions, hollowed-out weight reduction, cantilever structures, inclined steps, dense hole clusters, and multiple datum planes. Through high-quality material selection, constant-temperature thermal aging, diamond tool layered climb milling, fillet and chamfering processes, wet cooling, and precision grinding, we thoroughly resolve the four major pain points of chipping, deformation, unstable precision, and embedded part misalignment, serving manufacturers of CMMs, machine tools, semiconductors, lasers, new energy, and automation equipment.
