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⚡ Graphite Electrodes Equipment

Graphite Electrodes Equipment

Graphite Electrodes Equipment covers the CNC machinery that machines the large-diameter graphite electrode bodies — the current-carrying columns threaded into nipples to form the full electrode string in an electric arc furnace. From the flagship CGK·RZ·02 flexible automatic line to the individual CNC units for boring, turning, thread combing and end-face finishing, these systems chain five coordinated operations into one flow under industrial PLC control, with optional inline weighing, resistivity measurement and hole-bottom-circle machining to match your quality protocol.
Request a Quote Technical Specs ↓
Φ300–Φ960 mm
Electrode Diameter
5 Stations
Integrated Flow
Industrial PLC
Line Coordination
≤5 min/pc
Cycle Time
All Carbon Electrode Processing Machinery Carbon Blocks Equipment Carbon Electrodes Equipment Graphite Connectors Equipment Graphite Crucibles Equipment Graphite Electrodes Equipment

Five CNC Operations in One Coordinated Line

The CGK·RZ·02 is built for carbon plants producing graphite electrode bodies — the current-carrying columns that thread into nipples to form the full electrode column in an electric arc furnace.

CGK·RZ·02 graphite electrode body flexible auto processing line installed in a production plant

A graphite electrode body is the large-diameter column that carries the furnace current and threads into a nipple at each end. Its bore, outer diameter, thread profile and end-face flatness determine whether the electrode column runs straight and carries current without hot spots at the joints. Where plants run these operations on isolated machines with crane transfers between stations, the CGK·RZ·02 removes every manual hand-off and holds tolerance across the full sequence, because each station starts from a datum the previous station has already established.

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Key Features & Working Principle

Five machining capabilities plus an automatic conveyor turn a row of standalone machines into one coordinated electrode-body line.

1

Double-End Boring & Scraping

Bores the centre hole and scrapes both end faces in one clamping, establishing the common datum every downstream station works from.

2

Multi-Tool External Turning

Strips the oxidised skin and brings the full body length to finished diameter, holding cylindricity across long graphite columns.

3

Double Thread Combing

Cuts the internal threads at both ends that mate with nipples, holding pitch error and thread-geometry accuracy on every body.

4

End-Face Finishing

Finishes the end faces that seat against the nipple shoulder, controlling flatness and perpendicularity to protect joint sealing.

5

Automatic Overhead Conveyor

An overhead automatic conveyor transfers each electrode between stations, removing crane handling and floor-crew bottlenecks.

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Optional Inline Measurement

Electronic weighing, specific-resistance measurement, hole-bottom-circle machining and data printing can be added to match your quality protocol.

Why Choose Prominer CNC Electrode Equipment

Against isolated electrode-body machines linked by crane handling, the CGK·RZ·02 wins on datum integrity, thread precision and lifecycle cost.

🎯

Eliminates Re-Clamping Error

The line passes each body through boring, turning and threading in one datum chain, so re-clamping drift never compounds between stations.

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International-Advanced Thread Precision

Single-thread pitch error ≤0.015 mm, cumulative pitch error ≤0.025 / 150 mm and thread geometry within ±20′ — precision that controls joint resistance.

🤖

Unmanned Operation

Full CNC on every station plus industrial PLC whole-line linkage lets the line run shifts with minimal floor presence.

⚙️

Flexible Type I / II Configuration

Type I covers Φ300–Φ600 mm and Type II covers Φ450–Φ960 mm bodies — switch by calling a part program, not by retooling.

💰

Lower Lifecycle Cost

One automated line replaces isolated machines, cranes and manual inspection benches — cutting footprint, labour and cross-shift variability.

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Remote Monitoring Ready

Optional upper-computer and remote-access architecture let supervisors track status, alarms and tool trends from the control room or offsite.

Flagship Configuration — CGK·RZ·02 Technical Data

Main technical performance indicators from the factory datasheet.

Parameter Unit Type I Type II
Machined electrode diameter mm Φ300–Φ600 Φ450–Φ960
Machined electrode length mm 1500–3200 1600–3370
Single-thread pitch error mm ≤0.015 ≤0.015
Cumulative thread pitch error mm ≤0.025 / 150 mm ≤0.025 / 150 mm
Thread end-face perpendicularity mm ≤0.015 ≤0.015
Electrode end-face flatness mm ≤0.03 ≤0.03
Thread effective diameter error mm ≤0.10 ≤0.10
Thread hole effective diameter error mm 0–+0.08 0–+0.08
Thread geometry accuracy — ±20′ ±20′
Coaxiality of thread and electrode center lines mm ≤0.15 ≤0.15
Outer-circle cylindricity error mm ≤0.07 ≤0.07
Cycle time per piece min/pc ≤5 ≤5

Materials & Industries Served

Designed for baked and graphitised electrode bodies used in high-current submerged-arc and electric-arc furnace operations.

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UHP / HP / RP Graphite Electrode Bodies
EAF steelmaking · Ladle furnaces
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Silicon Metal Production
Submerged arc furnaces · Carbothermic reduction
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Ferroalloy Furnaces
Ferrosilicon · Ferrochrome · Silicomanganese
🔥
Calcium Carbide Furnaces
CaC₂ electrode columns · High-current joints
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Integrated Carbon Electrode Plants
Body line + nipple line · Matched-set output
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Mixed-Spec Production
Φ300–Φ960 · Program-call changeover

Frequently Asked Questions

What is a graphite electrode body auto processing line?
It is an integrated production system that chains five CNC machining operations — double-end boring and scraping, external turning, double thread combing, end-face finishing and automatic overhead transfer — into a single coordinated flow for graphite electrode bodies. Under industrial PLC line control, it machines bodies from rough blanks to finished columns without manual handling between stations.
What five machining operations does the CGK·RZ·02 integrate?
The line integrates double-end boring and scraping to establish the centre datum, multi-tool external cylindrical turning to finish the body diameter, double thread combing to cut the nipple sockets at both ends, end-face finishing to seat the nipple shoulders, and an automatic overhead conveyor that transfers each electrode between stations.
What electrode diameters and lengths can the line process?
The CGK·RZ·02 processes graphite electrode bodies in two ranges: Type I covers Φ300–Φ600 mm in lengths of 1500–3200 mm, and Type II covers Φ450–Φ960 mm in lengths of 1600–3370 mm. Mixed production is supported by loading the appropriate part program and fixture adjustments rather than retooling the line.
What accuracy does the CGK·RZ·02 achieve?
The line holds single-thread pitch error within 0.015 mm, cumulative pitch error within 0.025 mm per 150 mm, thread-end-face perpendicularity within 0.015 mm, thread hole effective diameter between 0 and +0.08 mm, thread geometry accuracy within ±20 arcminutes, thread-to-body coaxiality within 0.15 mm, outer-circle cylindricity within 0.07 mm, and cycle time at or below five minutes per piece.
How does the automatic conveyor system work?
An overhead automatic conveyor lifts and transfers each electrode between the five machining stations on a timed cycle. The industrial PLC coordinates station handshakes and interlocks so each station begins only when the previous one signals completion, eliminating crane handling and floor-crew delays.
What information is needed for a quotation?
Send us your electrode diameter and length range, Type I or Type II preference, thread specification and nipple standard, daily throughput target, material grade, workshop layout including floor space and power supply, and whether you need optional inline weighing, resistivity measurement, hole-bottom-circle machining or data printing. Our engineering team returns a line layout with confirmed specifications and a quotation.

Configure a CGK·RZ·02 for Your Electrode Body Plant

Send us your electrode diameter and length range, thread specification, Type I / Type II preference, daily throughput target, material grade, and workshop layout — including floor space, power supply and dust extraction capacity. Our engineering team will prepare a line layout with confirmed specifications, cycle-time estimate and quotation.

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