CGK-03 CNC Graphite Crucible Automatic Processing Production Line
Complete CNC Crucible Machining in One Line
The CGK-03 line is designed for manufacturers producing cylindrical graphite crucibles used in high-temperature metallurgy, semiconductor crystal growth, photovoltaic silicon processing and advanced materials sintering.
Instead of routing blanks across standalone lathes, boring machines and milling centers, the line consolidates every critical operation into a linked, PLC-controlled cell. Each station is independently CNC-programmable for quick changeover between diameters and lengths, while the central conveyor and dust-collection system keep throughput high and the working environment clean.
The result is repeatable geometry, tighter end-face and bore tolerances, and significantly reduced handling between operations β ideal for the mixed-batch reality of crucible production.
Request a Quote βHow the Line Is Organized
The production line is built from function-specific CNC units tied together by an automatic roller conveyor and a central ventilation / dust-extraction system. Each unit can be enabled, bypassed or re-sequenced through the master PLC.
Automatic Loading & Centering
Crucible blanks are loaded onto the infeed conveyor and mechanically centered before transfer to the first machining station.
CNC Center-Hole Drilling & Alignment
Aligns each blank and machines center holes / locating features so every downstream station shares a common datum.
CNC Outer-Diameter Turning
Finish-turns the cylindrical OD to the required diameter and straightness for furnace assemblies and handling fixtures.
CNC Inner-Hole Boring
Machines the internal bore, controlling concentricity and surface finish for consistent thermal performance.
CNC End-Face Milling
Squares and finishes both end faces to length, maintaining perpendicularity relative to the bore axis.
Conveyor, Weighing & Dust Extraction
Parts move automatically between stations; an integrated ventilation and vacuum system captures graphite dust at source.
Why Choose the CGK-03 Line
A crucible-specific production line that balances automation, flexibility and machining precision.
All-CNC Operation
Each machining unit runs under dedicated CNC control, eliminating mechanical transmission-chain errors and enabling repeatable, high-precision processing.
Flexible for Small Batches
Quick program changeover makes the line economical for multi-variety, multi-specification and small-lot production.
Linked or Stand-Alone Modes
Units run as an integrated line under central PLC control, or operate independently for setup, maintenance and partial reconfiguration.
Integrated Dust & Chip Management
A central ventilation and vacuum system captures graphite dust at each cutting point, improving air quality and reducing cleanup downtime.
Remote Monitoring Ready
Optional host-computer interface supports remote access, status monitoring and production-data logging for Industry 4.0 integration.
Proven Crucible Geometry Range
Handles cylindrical crucibles from Ξ¦450 mm to Ξ¦650 mm in diameter and 600 mm to 1,200 mm in length, with optional customization outside this envelope.
CGK-03B Standard Configuration β Technical Data
Specifications below are for the standard CGK-03B configuration. Larger or smaller workpiece envelopes, additional machining units and custom automation levels are available on request.
| Parameter | CGK-03B |
|---|---|
| Workpiece Diameter Range | Ξ¦450βΞ¦600 mm |
| Workpiece Length Range | 650β1,200 mm |
| Workpiece Speed (Stepless) | 200 rpm |
| Spindle Center Height | 1,400 mm |
| Spindle Head Mounting Diameter | 140h6 mm |
| Flange Diameter | 220 mm |
| Variable-Frequency Main Motor | 11 / 15 kW |
| Spindle Head Taper Hole Diameter | 80 mm |
| Spindle Bore Diameter | 70 mm |
| Pneumatic System Pressure | 0.4β0.6 MPa |
| Dust Extraction Hose Diameter | 150 mm |
| Servo Motor Power | 1.5 kW Γ 2, 2.0 kW Γ 5, 3.0 kW Γ 1 |
| Servo System Increment | 0.001 mm |
| Carriage Rapid Traverse Speed | 8 m/min |
Materials & Industries Served
Designed for graphitized and semi-graphitized cylindrical blanks across high-temperature and high-purity applications.
Frequently Asked Questions
Is the CGK-03 line only for graphitized crucibles, or can it process semi-graphitized blanks as well?
Can the line handle diameters or lengths outside the standard CGK-03B envelope?
How does the line manage graphite dust?
Can individual units be purchased separately?
What control system is used?
What information do you need for a quotation?
Get a Configuration Quote for Your Crucible Line
Tell us your crucible dimensions, material grade and target output. Our engineering team will size the right CGK-03 configuration and prepare a turnkey layout with utility and foundation requirements.
Request a Quote β