JOINT CARBIDE GROUP

OUR BRAND PRECISION · HARDNESS · TRUST

From a single R&D lab in Zigong to a six-entity global carbide group -- 19+ years of material science, manufacturing precision, and unwavering commitment to quality.

2007
Founded
19+
Years
418
CNC Machines
6
Group Entities
Who We Are

THE JOINT
CARBIDE STORY

Joint Carbide was born in 2007 in Zigong, China -- a city with deep roots in the tungsten carbide industry. What began as a focused R&D operation for carbide blanks has grown into a six-entity global group spanning raw material production, precision tool manufacturing, advanced surface engineering, and international export.

We are a professional manufacturer and high-tech enterprise integrating research, development, production, and sales of carbide burrs, carbide grit, carbide rod, hardfacing material, wear parts, and recycled carbide scrap -- serving 20+ industries across the globe.

As China's first carbide burr manufacturer with a complete in-house supply chain, we control every step: from wet grinding and pressing to sintering, fluting, testing, and shipping. This end-to-end ownership enables unmatched quality consistency and competitive pricing.

Complete Supply Chain 3 Factories 20+ Industries Served Global Export HRA 90.3-91.5
Joint Carbide factory floor with 5-axis CNC machines in operation
ZIGONG, CHINA
HEADQUARTERS

Our main manufacturing hub in Zigong -- home to flagship carbide burr production lines, R&D laboratories, and quality testing centers.

30K+
Burrs / Day
418
5-Axis CNC
3
Factories
Industry Leadership

THREE NO.1 ACHIEVEMENTS

Two Global Firsts · One National Champion

#1
Global · Pricing Advantage

World's First Full Industrial Chain Closed Loop

The world's first enterprise to realize a complete closed-loop supply chain for rotary burrs -- from raw material to finished product, fully in-house. We pass the savings directly to clients.

#1
Global · Lead Time Advantage

World's Largest Rotary Burr Producer

418 CNC fluting machines -- the largest quantity worldwide. 20,000+ pcs daily output today, scaling to 50,000+ pcs after 2027. On-time delivery guaranteed for all order sizes.

#1
China · Quality Advantage

China's Top Enterprise in Rotary Burr Quality

HRA 90.3-91.5 hardness. Domestic WC raw materials. Self-developed CNC machines with standardized tooth profiles -- outperforming peers on stainless steel and hard metals.

Our Journey

GROUP EVOLUTION

From a single R&D lab in Zigong to a six-entity global carbide group -- every milestone built on material science and manufacturing precision.

2007
Founding · Zigong

Zigong Joint Carbide Co., Ltd.

Established the foundation with dedicated R&D of carbide burr blanks -- building the raw material expertise that underpins the entire group today.

2016
Expansion · Zigong

Zigong Kingtools Co., Ltd.

Launched dedicated carbide burr production -- scaling precision tool manufacturing with self-developed 5-axis CNC technology to serve global industrial clients.

2019
Global Sales · Chengdu

Chengdu Joint Carbide Co., Ltd.

Opened the international sales and export hub -- connecting Chinese manufacturing excellence to global markets across 20+ industries.

2021
Scale-Up · Ganzhou

Ganzhou Joint Carbide Co., Ltd.

Expanded carbide burr production capacity in Ganzhou -- doubling throughput to meet surging global demand, growing the fleet to 418 total CNC machines.

2023
Diversification · Ganzhou

Ganzhou Jinshi Alloy Material Co., Ltd.

Entered hardfacing material, carbide grit and wear parts -- broadening the portfolio into advanced surface engineering and high-entropy alloy systems.

2026
Future · Hainan

Hainan Joint Carbide Co., Ltd.

The newest entity -- a global export hub for carbide burrs with the Joint Carbide brand, hardfacing materials, carbide grit, wear parts and scrap recycling.

Launching 2026
Our Values

BUSINESS PHILOSOPHY

Three core principles guide every decision, every product, and every relationship at Joint Carbide.

TRUST & RESPECT

Be an enterprise built on trust and respect -- in every transaction, every product, and every customer relationship. Integrity is the foundation of our brand.

WORLD'S BIGGEST

Strive to be the world's biggest carbide burr manufacturer -- through continuous investment in technology, production capacity, and global market reach.

REAL VALUE

Deliver valuable products and a lasting reputation to each customer -- premium quality at competitive pricing, backed by 19+ years of expertise.

"HARDNESS IN MATERIAL. PRECISION IN CRAFT. TRUST IN PARTNERSHIP."
-- Joint Carbide Group Core Ethos
What We Make

PRODUCT PORTFOLIO

A complete range of tungsten carbide solutions for every industrial application -- from precision tools to advanced surface engineering materials.

3
PRODUCT LINES
Carbide burrs -- various shapes and cut types by Joint Carbide
Flagship Product

CARBIDE BURRS

418
CNC

China's first carbide burr manufacturer with a complete in-house supply chain. HRA 90.3-91.5 hardness. 20,000+ pcs daily. Available in standard and custom cut types.

Double Cut
Stainless / High-Temp
Single Cut
Cast Iron / Steel
Aluminium Cut
Al Alloys / Plastics
Diamond Cut
All <HRC60
01 Wet Grinding 02 Pressing 03 Sintering 04 Fluting 05 Testing 06 Shipping
Tungsten carbide burr blanks manufactured by Zigong Joint Carbide
Foundation Material

CARBIDE BLANKS

Precision-sintered tungsten carbide burr blanks produced in-house since 2007. Domestic WC raw materials with stable, controllable quality -- the foundation of the entire Joint Carbide supply chain.

HRA 90.3-91.5 Hardness
100% Pure WC Raw Material
Full In-House Sintering Process
Thermal spray and cladding hardfacing powders and welding rods
Advanced Surface Engineering

HARDFACING MATERIAL

A full suite of tungsten carbide hardfacing solutions -- composite welding rods, sintered welding rods, WC-based tubular rods, carbide grit and WC-Co-Ni thermal spray powders -- for anti-wear, anti-corrosion and high-temperature coatings across mining, petroleum, metallurgy and construction machinery.

Composite Rod
WC + Solder
Sintered Rod
Ni-Based Alloy
Carbide Grit
YG / YT Grade
Spray Powder
WC-Co-Ni
Why Joint Carbide

BRAND ADVANTAGES

What sets Joint Carbide apart -- from material purity to manufacturing technology and global delivery.

SUPERIOR HARDNESS

HRA 90.3-91.5 -- outstanding wear resistance and extended service life in the most demanding applications.

HIGH PRECISION

Self-developed CNC machines realize standardized tooth profiles -- outperforming peers on stainless steel and hard metals.

EXTENDED LIFE

100% domestic WC raw material with stable, controllable quality -- long service life at competitive pricing.

RELIABLE DELIVERY

418 CNC machines guarantee on-time delivery for all order sizes -- from sample to bulk orders.

QUALITY SPECIFICATIONS
100% Pure WC Raw Material
Domestic source -- stable, controllable quality with cutting edges professionally hardened and honed.
50% Silver Sandwich Solder
Flat-top brazing at 700°C (vs 1250°C copper brazing) -- preserves alloy quality, eliminates fracture risk.
R-Shape Shank · 40Cr Steel · HRC 45±2
Anti-rust special steel shank -- enlarged welding area, impact resistant, convenient for inventory storage.
HRA 90.3-91.5 Hardness
Industry-leading hardness specification -- outstanding wear resistance and longevity in all cut types.
MANUFACTURING PROCESS

Complete vertical integration -- every step performed in-house at our own facilities, ensuring consistent quality and competitive lead times.

01
Wet Grinding
Raw material preparation and particle sizing
02
Pressing
High-pressure forming of blank geometry
03
Sintering
Vacuum sintering for full density and hardness
04
Fluting
5-axis CNC fluting with standardized tooth profiles
05
Testing
Dimensional, hardness and performance inspection
06
Shipping
Packaged and dispatched with global logistics
Global Reach

20+ INDUSTRIES
WORLDWIDE

Trusted by major B2B customers across the globe -- from automotive manufacturers to aerospace pioneers.

Automotive
Manufacturers
Aerospace
Industry
Mold & Die
Makers
Metalworking
Workshops
Shipbuilding
& Marine
Medical Device
Manufacturers
Jewelry
Manufacturers
Power Plant
Equipment
Defense &
Military
Railway &
Locomotive
Foundries &
Casting
Renewable
Energy
Construction &
Infrastructure
Heavy Equipment
Manufacturers
Repair &
Maintenance
Joint Carbide serves customers across Asia, Europe, North America and beyond
GLOBAL DELIVERY · WORLDWIDE TRUST

Serving clients across Asia, Europe, North America, the Middle East, and beyond -- backed by 19+ years of manufacturing excellence and reliable international logistics.

JOINT CARBIDE
Est. 2007

READY TO PARTNER
WITH THE BEST?

19+ years · 418 CNC machines · 3 factories · Complete supply chain · Global delivery. Experience the Joint Carbide difference -- precision, hardness, trust.

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Carbide Burrs · Carbide Grit · Carbide Rods · Hardfacing Material · Wear Parts · Scrap Recycling