Zhuzhou Yunrui Hardmetal Co., Ltd · Zhuzhou, China

Tungsten Carbide Pins/Tungsten Carbide Pegs for Bead Mill

These are tungsten carbide pins used in bead mills for grinding and mixing viscous materials. They are pressed and sintered from cemented carbide powder and ground to the required shape and size. The pins are designed to maintain…

Carbide Pegs for Bead Mills

Product Overview

These are tungsten carbide pins used in bead mills for grinding and mixing viscous materials. They are pressed and sintered from cemented carbide powder and ground to the required shape and size. The pins are designed to maintain dimensional stability under high wear and impact conditions. They are available in solid carbide or steel-welded carbide configurations. Production is based on customer drawings.

Key Benefits

  • Maintains shape and hardness under high wear and impact in bead mill environments
  • Handles low to high viscosity materials without deformation or premature failure
  • Reduces downtime due to wear compared to steel or coated pins
  • Solid carbide or steel-welded options allow for cost and performance trade-offs
  • Made to drawing, so they fit existing mill designs without modification
Specifications

Technical Data

Values below come from the product data we publish. Anything not listed is confirmed against your drawing at quotation.

MaterialCemented tungsten carbide (WC-Co)
ConstructionSolid carbide or steel-welded with carbide
ShapeTo customer drawing
FinishGround to drawing
Lead TimeStock items 3-5 days after payment; customised items quoted per order
Grades AvailableYG6 YG8 YG10 YG15 YL10.2 and equivalents, selected against the duty

Problems It Solves

  • Steel pins wear out quickly in abrasive or high-viscosity slurries, leading to frequent replacements
  • Welded carbide pins fail at the bond line under repeated stress, causing chipping or detachment
  • Inconsistent pin geometry leads to uneven grinding and poor product distribution
  • Lack of standardization in pin size and shape makes replacement difficult across different mill models

Who It Is For

  • Bead mill and sand mill manufacturers sourcing wear-resistant pins
  • Chemical and paint producers using bead mills for dispersion and homogenization
  • Pharmaceutical and cosmetics companies requiring consistent milling in viscous batches
  • Machinery suppliers replacing worn pins in existing mill designs

Application Scenarios

  • Bead mill pins in high-viscosity paint or ink production where consistent particle size is critical
  • Wear-prone pins in pigment and ceramic slurries with abrasive particles
  • High-speed milling operations where pin wear leads to inconsistent product quality
  • Replacements for pins that fail quickly due to softness or poor bonding in steel-welded versions

Technical Features

  • Pressed from tungsten carbide powder using imported press for consistent green density
  • Sintered in over-pressure furnace to reduce porosity and stabilize density
  • Available in solid carbide or steel-welded carbide construction
  • Ground to customer drawing for precise fit and function
  • Regular geometry with small dimensional margin after sintering, reducing finish grinding

Materials and Grades

  • WC-Co cemented carbide with cobalt content selected for wear resistance and toughness
  • Lower cobalt grades such as YG6 for maximum wear resistance in clean abrasive service
  • Higher cobalt grades such as YG15 for better impact resistance in high-stress environments
  • Steel core with carbide tip for cost-effective wear resistance in moderate-duty applications

Customisation Options

  • Manufactured to customer drawings including non-standard and specially shaped pins
  • Grade selected based on material, viscosity, and abrasiveness of the product
  • Solid carbide or steel-welded options available to match performance and cost targets
  • Samples produced for pre-testing before bulk release
Manufacturing

How This Part Is Made

Drawing review and grade selection

Powder blending and pressing on imported press

Over-pressure sintering to close porosity and stabilize density

Grinding to customer drawing

Dimensional and physical property inspection

Packing and shipping

Quality Control

  • Physical properties, shape and tolerance are checked before shipping
  • Every order is tested before bulk production is released
  • Inspection photographs of the finished order are sent for confirmation before delivery

Use Guide

  • Send the drawing and the material being processed, including viscosity and abrasive content, so the grade can be matched
  • Use solid carbide for high wear and impact; steel-welded for moderate duty and cost savings
  • Ensure the pin is fully supported in the mill housing; unsupported edges are prone to chipping
  • Avoid sudden temperature changes when installing cold pins into hot mill chambers
  • Keep one sample from the first batch for comparison when evaluating future orders
Comparison

How It Compares With The Alternatives

AlternativeTrade-off
Steel pinsSteel is cheaper and easier to machine, but wears rapidly in abrasive or viscous slurries, leading to frequent replacements and inconsistent grinding
Welded carbide pins with poor bondWelded pins can delaminate at the bond line under stress; solid carbide pins maintain integrity throughout the service life
Ceramic pinsCeramic has high hardness but is brittle under impact; carbide tolerates shock better in high-speed bead mills
FAQ

Tungsten Carbide Pins/Tungsten Carbide Pegs for Bead Mill FAQ

Are you a trade company or a manufacturer?

A manufacturer. The company has produced tungsten carbide parts for over 15 years and takes on design and processing of carbide products with technical support.

Where is your factory located?

Zhuzhou City, Hunan Province, China, which is the country's tungsten carbide production base.

Can you produce the products according to my own drawing?

Yes. OEM and ODM to customer drawings is standard for this part, including non-standard and specially shaped pins.

Can I get a sample before placing a bulk order?

Yes. Samples are sold for pre-testing. Send the drawing and the service conditions and a sample can be quoted.

How long does an order take?

Stock items are shipped 3-5 days after payment is received. Customised items are given a delivery time in the quotation.

How do I know the parts were checked before they shipped?

Physical properties, shape and tolerance are inspected before shipping, and detailed inspection photographs of the order are sent for confirmation before delivery.

Which grade should I choose?

It depends on the material and the load. Lower cobalt grades such as YG6 give the best wear resistance in clean abrasive service; higher cobalt grades such as YG15 tolerate impact better. Send the operating conditions and a grade will be recommended.

Get A Price For Tungsten Carbide Pins/Tungsten Carbide Pegs for Bead Mill

Send the drawing or the dimensions plus what the part runs against. Samples are available for pre-testing before a bulk order.