Manufacturing Excellence

PRODUCTION CAPABILITIES

A fully integrated carbide manufacturing ecosystem -- from raw tungsten carbide to finished precision tools -- built across 3 factories, 418 CNC machines, and 19+ years of industry expertise.

3
Factories
418
CNC Machines
30K+
Pieces / Day
19+
Years
Three No.1 Achievements
World's First

FULL SUPPLY CHAIN LOOP

The world's first enterprise to realize a full industrial chain closed loop for rotary burrs -- delivering a decisive pricing advantage.

World's Largest

PRODUCTION CAPACITY

The world's largest producer of rotary burrs by production capacity -- guaranteeing on-time delivery for all order sizes with a lead time advantage.

China's Top

QUALITY STANDARD

China's top enterprise in rotary burr quality -- HRA 90.3-91.5 hardness with domestic tungsten carbide for stable, controllable quality advantage.

Joint Carbide CNC fluting machines on the factory floor
418
5-Axis CNC
China's First
Full Supply Chain Burr Maker
Factory Advantage

COMPLETE
SUPPLY CHAIN

Joint Carbide is China's first carbide burr manufacturer with a fully integrated material supply chain. From raw tungsten carbide procurement to finished product shipping -- every stage is controlled in-house across our three dedicated facilities in Zigong, Ganzhou, and Chengdu.

01
Direct Raw Material Sourcing
100% pure tungsten carbide raw material -- no intermediaries, ensuring consistent quality and competitive pricing.
02
418 Sets of 5-Axis CNC Machines
State-of-the-art multi-axis machining enables complex geometries with micron-level precision at high throughput.
03
30,000+ Pieces Daily Output
Massive production capacity supports large-volume orders with consistent lead times for global clients.
04
HRA 90.3-91.5 Superior Hardness
Premium hardness rating delivers outstanding wear resistance and extended service life in demanding applications.
Manufacturing Process

CARBIDE BURRS PRODUCTION

Every carbide burr passes through six precision-controlled stages -- from raw material wet grinding to final quality testing -- ensuring consistent HRA 90.3-91.5 hardness and surface finish.

WET GRINDING

Tungsten carbide powder is wet-ground with binders to achieve uniform particle size distribution and optimal material consistency for pressing.

PRESSING

Carbide mixture is precision-pressed into blank forms using controlled pressure to ensure uniform density and dimensional accuracy across every piece.

SINTERING

High-temperature vacuum sintering bonds carbide particles into a dense, hard structure -- achieving the signature HRA 90.3-91.5 hardness rating.

FLUTING

5-axis CNC fluting machines carve precise cutting geometries -- double cut, single cut, aluminium cut and specialty profiles -- with micron-level accuracy.

TESTING

Every burr undergoes rigorous hardness testing, dimensional inspection, and surface quality checks to verify compliance with HRA 90.3-91.5 specifications.

SHIPPING

Finished burrs are professionally packaged and dispatched globally -- with reliable logistics infrastructure supporting 20+ industries worldwide.

Product Advantages
HRA 90.3-91.5
Superior Hardness
Outstanding wear resistance for demanding industrial applications.
HIGH PRECISION
Fine Surface Finish
Optimized chip removal for clean, accurate carbide processing.
LONG LIFE
Extended Service Life
Premium raw materials ensure cost-effective, long-lasting performance.
RELIABLE
Heavy-Duty Stability
Excellent structural stability and durability for continuous industrial use.
Technology Edge

MANUFACTURING TECHNOLOGY

RAW MATERIAL

As a direct-source manufacturer, we craft carbide burrs from 100% pure tungsten carbide raw material. Cutting edges undergo professional hardening and precision honing, delivering exceptional sharpness and long-lasting durability.

100% Pure WC -- No intermediaries, no compromises

R-SHAPE SHANK

Engineered with an enlarged welding area to greatly enhance impact resistance. The shank is made of premium 40Cr steel, compatible with 1/4 inch collet rotary tools -- ensuring easy installation and firm, stable clamping.

40Cr Steel
Premium
1/4 inch
Collet Fit
HRC 45±2
Anti-Rust

WELDING PROCESS

Flat-top silver brazing with 50% silver sandwich solder operates at 700°C -- far lower than copper brazing at 1250°C. This preserves alloy quality, expands the welding area, and fundamentally eliminates carbide burr fracture problems.

50% Silver Solder 700°C Low-Temp Gap-Free Joint Anti-Fracture

CUT GEOMETRY

Self-developed automatic CNC machines realize standardized tooth profiles with ideal chip evacuation for hard metals and stainless steel -- cutting performance that outperforms peers.

Double Cut (MX)
Stainless / High-Temp
Single Cut (M)
Cast Iron / Steel
Aluminium Cut (W)
Al Alloys / Plastics
Diamond Cut (D)
All <HRC60 Materials
Material Production

CARBIDE GRIT
PRODUCTION

Tungsten carbide grit is produced by crushing and grading YG/YT tungsten carbide into sized particles. It serves as a key raw material for carbide composite welding rods, spray welding and surfacing materials.

Tungsten Carbide Grit (YG/YT)
Widely applied for surface cladding, pre-strengthening and wear repair in mining, petroleum, metallurgy, agricultural machinery and steel industries.
Mining Petroleum Metallurgy Agricultural Machinery
High-Entropy Alloy Grit (Ti-Cr-Mn-W-Mo)
Low density, low magnetism, excellent corrosion and wear resistance. Replaces over 90% of tungsten carbide performance -- ideal for aerospace, defense and energy sectors.
Aerospace Defense Energy Chemical
8-Step Manufacturing Process
1
Material Screening
Selection of qualified raw carbide material
2
Clean
Removal of surface contaminants
3
Drying
Controlled drying for consistent moisture content
4
Break
Crushing into grit particles
5
Screening
Particle size classification and grading
6
Type Selection
Sorting by grade and application type
7
Testing
Experimental screener quality verification
8
Packaging
Professional packaging for global shipment
Material Production

CARBIDE ROD
PRODUCTION

Carbide rods are widely used for wear resistance, hardfacing and component repair in mining, petroleum, metallurgy, agricultural machinery, construction machinery, general industrial machinery and the coal industry.

1
Prepare the Raw Materials
2
Load the Vessel
3
Vacuum Condensation
4
Clean, Polish & Dry
5
Quality Check & Inspection
6
Professional Packaging
Key Application Fields
Mining Petroleum Metallurgy Construction Machinery Coal Industry Laser Cladding
Carbide rod manufacturing -- vacuum sintering process
COMPOSITE ROD
Carbide composite welding rods for wear resistance and component repair across heavy industry.
SINTERED ROD
Sintered carbide rods for hardfacing, surface strengthening and precision tooling applications.
Advanced Surface Engineering

CARBIDE POWDER

Thermal spray powders and cladding & hardfacing powders for anti-wear, anti-corrosion and high-temperature coatings across aerospace, oil & gas, power generation and heavy industry.

THERMAL SPRAY
Powder Products
WC-Based
Wear / Corrosion
WC-Ni Based
High Temp
Cr₃C₂-Based
Oxidation

Applied in aerospace, oil & gas, power generation, automotive, metallurgy, mining, agricultural machinery, medical implants and general industry for wear, corrosion, high-temperature and friction-resistant coatings.

Key Customers
Aircraft OEMs MRO Providers Oilfield Services Power Equipment
CLADDING &
Hardfacing Powder
WC/Ni-Based
Anti-wear Cladding
Nickel-Based
Corrosion Resist
TiC-Based
High Temp Cladding
TiC-CrFe Based
Surface Strengthen

Widely used for anti-wear, anti-corrosion and high-temperature resistant cladding in oil & gas, mining, metallurgy, agricultural machinery, power generation and marine industries.

Key Customers
Wear Material Distributors Laser Cladding Mining Machinery Hardfacing Welding
Thermal Spray Powder -- 8-Step Manufacturing Process
1
Precise Ingredients
Accurate formulation of powder components
2
Wet Ball Grinding
Uniform particle distribution and mixing
3
Spray Drying
Controlled drying and cooling of powder
4
Semi-Finished Screening
Initial particle size classification
5
Vacuum Densification
Vacuum sintering for density optimization
6
Crushing & Sieving
Final particle refinement and filtration
7
Quality Inspection
Flow rate, granularity, C/S, spectrometer
8
Finished Packaging
Professional packaging for global export
Quality Control Instruments
Hole Flow Meter
Punch Screening
Laser Granularity Detector
High Freq. Infrared C/S Analyzer
Spectrometer (Cr, Co, O)
Our Facilities

PRODUCTION FACILITIES

Zigong Joint Carbide factory -- CNC machining floor
ZIGONG FACTORY
R&D · Carbide Blanks
Ganzhou Joint Carbide factory -- burr and alloy production line
GANZHOU FACTORY
Burrs · Grit · Powder · Wear Parts
Hainan and Chengdu Joint Carbide -- international export hub
CHENGDU & HAINAN HUB
Sales · Global Export
3
Factories
Zigong · Ganzhou · Chengdu
418
CNC Machines
5-Axis Precision Machining
20+
Industries Served
Aerospace to Automotive
Get Started

READY TO SOURCE
PRECISION CARBIDE?

19+ years of expertise · 418 CNC machines · 30,000+ pieces daily · Full supply chain control. Contact Joint Carbide for custom specifications, bulk orders and global delivery.

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Est.
2007
Zigong, China
Entities
6
Group Companies
Hardness
HRA 91.5
Maximum Rating
Delivery
Global
20+ Industries