JOINT CARBIDE
Est. 2007

HARDNESS. PRECISION. TRUST.

The world's largest carbide burr manufacturer -- a complete tungsten carbide supply chain serving 20+ global industries with hardness up to HRA 91.5.

Three World No.1 Achievements
Carbide Burrs Carbide Blanks Hardfacing Materials Tungsten Carbide Grit Thermal Spray Powder
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Experience
19+
Years Industry
Excellence
Machines
418
5-Axis CNC
Fluting Machines
Daily Output
30K+
Carbide Burrs
Per Day
Group
6
Entities · Full
Supply Chain
Three No.1 Achievements
World's 1st full industrial chain closed loop for rotary burrs
World's largest rotary burr producer by capacity
China's top enterprise in rotary burr quality
Core Product Lines

COMPLETE CARBIDE SOLUTIONS

From raw tungsten carbide blanks to precision burrs and advanced surface engineering materials -- one supplier, complete capability, unmatched quality control.

Carbide Burrs -- Joint Carbide flagship product
Flagship Product

CARBIDE BURRS

418 CNC Machines · 30K+ pcs/day

The world's largest carbide burr manufacturer. Precision tooth profiles via self-developed 5-axis CNC. Flat-top silver brazing eliminates fracture at the root. HRA 90.3-91.5 hardness standard.

Double Cut
Stainless / Alloys
Single Cut
Cast Iron / Steel
Aluminium Cut
Al / Non-Ferrous
Diamond Cut
All < HRC60
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Carbide Blanks -- precision tungsten carbide substrates
Foundation Material

CARBIDE BLANKS

Custom Shapes · Precision Tolerances

Founded in 2007 specifically for carbide blank R&D. Domestic tungsten carbide raw materials ensure stable, controllable quality -- the substrate behind every precision burr.

Types A through N
Full range of standard burr blank profiles
YG Grade Options
Tailored composition for every application
Custom OEM Available
Wet grinding → pressing → sintering in-house
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Hardfacing Materials -- tungsten carbide welding rods and thermal spray powders
Surface Engineering

HARDFACING MATERIALS

Welding Rods · Grit · Thermal Spray

Advanced wear-resistance solutions: composite welding rods, WC-based tubular rods, carbide grit, and WC-Co-Ni thermal spray powders for mining, petroleum, and heavy industry.

Composite Rod
Mace-Style WC
Tubular Rod
WC-Based 08 Steel
Carbide Grit
YG/YT Graded
Spray Powder
WC-Co-Ni Spherical
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Serving Industries
20+ SECTORS
Automotive Aerospace Mold & Die Shipbuilding Mining Petroleum Medical Devices Defense Railway Renewable Energy Heavy Equipment Jewelry
Manufacturing Excellence

IN-HOUSE FULL PROCESS CONTROL

Every carbide burr is made entirely in-house -- from raw material grinding to final quality testing -- ensuring consistent HRA 90.3-91.5 hardness and zero-compromise standards.

01
Wet Grinding
Raw WC powder homogenized
02
Pressing
Shaped under high pressure
03
Sintering
Vacuum-fired for density
04
Fluting
5-axis CNC tooth profile
05
Testing
HRA hardness verification
06
Shipping
Global on-time delivery
100% Pure WC Raw Material
Domestic sourcing ensures stable, controllable quality at every production run.
Flat-Top Silver Brazing
50% silver solder at 700°C -- wider bond area, zero fracture risk at the head joint.
Special Steel Shank HRC 45±2
Anti-rust 40Cr R-shape shank lowers after-sales risk and extends storage life.
Self-Developed CNC Machines
Standardized tooth profiles outperform peers in hard metals and stainless steel cutting.
Why Joint Carbide

THREE COMPETITIVE
ADVANTAGES

World-class production capacity, the lowest prices through vertical integration, and China's top quality standard -- all from a single trusted supplier with 19+ years of expertise.

$
Pricing Advantage -- Full Chain Closed Loop
The world's first full industrial chain for rotary burrs. Vertical integration -- from carbide blanks to CNC equipment to packaging -- eliminates intermediaries, delivering equivalent quality at the lowest possible price.
⚡
Lead Time Advantage -- World's Largest Capacity
418 CNC machines delivering 20,000-30,000 pcs/day now. Expanding to 1,000 machines and 50,000 pcs/day by 2027. On-time delivery guaranteed for all order sizes.
★
Quality Advantage -- China's No.1 Standard
HRA 90.3-91.5 hardness. Self-developed CNC machines, flat-top silver brazing, and anti-rust special steel shanks -- cutting performance that outperforms every peer.
Capacity Roadmap
2024 → 2027
Current Daily Output 20,000-30,000 pcs
2027 Target Output 50,000+ pcs/day
CNC Machines (Current → Target) 418 → 1,000
9th-gen fully automatic CNC machines launching 2027
3
Factories
6
Group Entities
20+
Industries
Business Philosophy
Trust · Scale · Value
✦ Be an enterprise with trust and respect
✦ Be the world's biggest carbide burrs manufacturer
✦ Bring valuable products and a good reputation to each customer
Group History -- 2007 to 2026
2007
Founding / Expansion
Zigong Joint Carbide Co., Ltd.
Dedicated R&D of carbide burr blanks -- the foundation of the group.
2016
Scale-Up
Zigong Kingtools Co., Ltd.
Launched dedicated carbide burr production with 5-axis CNC technology.
2019
Founding / Expansion
Chengdu Joint Carbide Co., Ltd.
International sales and export hub connecting to global markets.
2021
Scale-Up
Ganzhou Joint Carbide Co., Ltd.
Expanded carbide burr production capacity -- doubled throughput.
2023
Founding / Expansion
Ganzhou Jinshi Alloy Material Co., Ltd.
Hardfacing material, carbide grit and wear parts production.
2026
Future
Hainan Joint Carbide Co., Ltd.
New global export hub -- carbide burrs, blanks and hardfacing materials.
Launching 2026
Get Started Today

SOURCE PRECISION
CARBIDE NOW

Tell us your application, material, and quantity -- our technical team will respond with the right product recommendation, competitive pricing, and delivery timeline within 24 hours.

Technical Consultation
Expert guidance on cut type, shape, grade, and shank selection
Custom OEM Manufacturing
Custom shank length, grade, and packaging available for all order sizes
Global On-Time Delivery
Guaranteed lead time from 3 production facilities across China
Product Range Quick Reference
Carbide Burrs -- All Types
Carbide Blanks A-N
Composite Welding Rods
Sintered Welding Rods
WC-Based Tubular Rods
Carbide Grit -- YG/YT
Thermal Spray Powder
Custom OEM Parts

REQUEST A QUOTE

We'll respond within 24 business hours with technical support and competitive pricing.

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