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Everything you need to know about Joint Carbide -- our company, products, ordering process, and technical guidance.

About Us Carbide Burrs Hardfacing Materials Usage Guidance Ordering & Delivery
About Us

Joint Carbide was founded in 2007 in Zigong, China, as a professional manufacturer and high-tech enterprise integrating R&D, production, and sales of carbide products. Over nearly two decades, we have grown into a group of six entities spanning three manufacturing sites and two international export hubs -- making us one of the world's most comprehensive carbide supply chains.

Joint Carbide holds three No. 1 achievements -- two global, one national:

1
World's First Full Industrial Chain Closed Loop
We cover carbide burr blanks, self-developed 5-axis CNC equipment, and in-house packaging -- delivering equivalent quality at the lowest prices.
2
World's Largest Rotary Burr Producer
With 418 CNC fluting machines and a current daily output of 20,000 pcs, we guarantee on-time delivery for any order size.
3
China's Top Enterprise in Rotary Burr Quality
Domestic tungsten carbide raw materials, self-developed CNC machines, flat-top silver brazing, and HRC 45±2 steel shanks set the quality benchmark.

We operate 3 manufacturing facilities (Zigong, Ganzhou, and Chengdu) and currently own 418 five-axis CNC fluting machines -- the largest quantity worldwide. After deploying 9th-generation fully automatic CNC machines in 2027, we plan to scale to 1,000 CNC units, boosting daily capacity to 50,000+ pieces.

We serve 20+ major B2B customer groups globally, including:

Automotive Aerospace Mold & Die Shipbuilding Medical Devices Defense & Military Mining Jewelry Manufacturing Power Plants Railway & Locomotive Renewable Energy Construction
Carbide Burrs
Standard Cut Types
CUT MX Double Cut -- stainless steel, steel <HRC60, high-temp alloys
CUT M Single Cut -- cast iron, steel and stainless steel <HRC60
CUT W Aluminium Cut -- aluminium, non-ferrous metals and plastics
Special Cut Types
CUT C Coarse Cut -- soft metals, non-ferrous metals, steel
CUT F Fine Cut -- cast iron, steel <HRC60, stainless steel
CUT D Diamond Cut -- all materials <HRC60
CUT MR Chip Breaker -- stainless steel, steel, cast iron
CUT INOX INOX Cut -- stainless steel and soft titanium alloys

Follow this step-by-step selection process to find the most suitable carbide burr:

  1. 1 Choose your grinding device (die grinder, rotary tool, etc.)
  2. 2 Identify your applied material (steel, aluminium, cast iron, etc.)
  3. 3 Confirm your required operating speed (RPM)
  4. 4 Select the appropriate burr shape for your workpiece geometry
  5. 5 Choose the correct cut type based on material hardness
  6. 6 Specify cut diameter, shank diameter, and shank type
  7. 7 Request a customized shank length if needed

Still unsure? Contact us -- our technical team is ready to recommend the ideal solution.

Premium Raw Materials: Domestic tungsten carbide with stable, controllable quality -- HRA hardness of 90.3-91.5.
Self-Developed CNC Machines: Automatic 5-axis CNC machines realize standardized tooth profiles for cutting performance that outperforms peers on hard metals and stainless steel.
Flat-Top Silver Brazing: Operates at 700°C (vs 1,250°C for copper brazing), expanding welding area while preserving alloy quality and fundamentally eliminating carbide burr fracture problems.
Special Steel Shanks: HRC 45±2 hardness, anti-rust treatment -- lowering after-sales risks and simplifying customer inventory storage.

Every carbide burr is produced fully in-house through a strict 6-step process:

01 Wet Grinding
02 Pressing
03 Sintering
04 Fluting
05 Testing
06 Shipping
Deburring and edge finishing
Surface preparation and smoothing
Weld grinding and cleanup
Porting and polishing
Engraving and carving details
Hardfacing Materials

Our hardfacing material portfolio includes five product lines:

Tungsten Carbide Composite Welding Rod -- "mace-style", 440-450mm length
Tungsten Carbide Sintered Welding Rod -- Ni-based alloy binder, strip-shaped
WC-Based Tubular Welding Rod -- Cast WC, carbide spheres, carbide particles
Tungsten Carbide Grit -- YG/YT grade, various mesh sizes
WC-Co-Ni Thermal Spray Powder -- Spherical coating powder, HVOF/HVAF compatible

Our welding rods and hardfacing materials are widely used for wear resistance, hardfacing, and component repair in:

Mining Petroleum Metallurgy Agricultural Machinery Construction Machinery Coal Industry General Industrial Machinery

Key overseas clients include welding consumables importers, hardfacing material suppliers, laser cladding manufacturers, and maintenance factories across mining, petroleum, and agricultural sectors.

Available Granule Sizes
1-2 mm 2-3 mm 3-5 mm 5-7 mm 7-9 mm 9-11 mm
Granule-to-Solder Ratios
60 : 40 65 : 35 70 : 30

Selections are based on specific operating conditions. Contact us for custom configurations.

Usage Guidance
Always follow these safety guidelines to prevent injury and maximize burr lifespan.
  • Always wear safety glasses and gloves before grinding.
  • Choose the appropriate rotational speed before starting to grind.
  • Confirm that the burr shank and chuck of the die grinder are firmly connected before use.
  • Avoid excessive pressure while grinding -- high temperature shortens burr lifespan.
  • Slow down the machine if the burr becomes stuck in the material.
  • Never use burrs in a combustible gas environment.

To get the most out of your carbide burrs:

  • Select the correct burr shape, diameter, and cut type for each specific material -- using the wrong cut type accelerates wear.
  • Operate at the recommended RPM -- running too fast or too slow reduces efficiency and causes premature wear.
  • Apply light, consistent pressure -- let the cutting teeth do the work without forcing the burr.
  • Store burrs in a dry environment -- our HRC 45±2 anti-rust shanks ensure safe long-term storage.
Ordering & Delivery

Absolutely. With 418 CNC fluting machines and a current daily output of 20,000 pcs, we are equipped for both small prototype orders and high-volume production runs. On-time delivery is guaranteed for all order sizes. We also support customized shank lengths, special cut configurations, and OEM packaging. By 2027, our capacity will scale to 50,000+ pcs/day.

Yes. Our Chengdu entity handles international sales and export of carbide burrs, and our upcoming Hainan entity (launching 2026) is specifically positioned as a global export hub for carbide burr blanks, finished burrs, and hardfacing materials under the Joint Carbide brand. We serve customers across more than 20 industries worldwide.

You can reach our team directly through the Contact Us page or by requesting a quote online. Our technical specialists are available to help you select the right product, specify custom parameters, and confirm pricing and lead times. For hardfacing and thermal spray powder inquiries, please specify your industry application and operating conditions for the most accurate recommendation.

Still Have Questions?

OUR TEAM IS READY TO HELP

Whether you need technical guidance, product selection support, or a custom quote -- Joint Carbide's specialists are here for you. 19+ years of expertise at your service.