Guangzhou Runshi Mould Co., Ltd.
                                                                                                           
Verified Supplier
16 Years
Since 2010
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Heat Exchangers Use Carbide Expansion Bullet For Copper Tube Expander

Price Negotiable
Price: Negotiate Price
MOQ: 10 PCS
Delivery Time: 15-20 work days
Brand: Expansion Bullet
Product Description
Carbide Expansion Bullet for Copper Tube Expanders
Our precision-engineered carbide expansion bullets are manufactured from high-quality YG8 material with mirror polishing or coating for superior surface finish. These durable components offer exceptional hardness and wear resistance for expanding copper, aluminum, and stainless steel tubes in heat exchanger applications.
Product Specifications
Attribute Value
Product Name Expansion Bullet, Expansion Ball, Expansion Head, Tube Expander Bullet
Material YG8 Carbide
Copper Tube Specification Φ5, Φ6, Φ6.35, Φ7, Φ7.94, Φ8.9, Φ9.53, Φ12, Φ12.7, Φ14.5, Φ15.88
Processing Precision grinder fine grinding
Hardness HRA 89°-92°
Quality 100% Inspection
Surface Finish Ra 0.2
Surface Treatment Mirror polishing or Coating
Service OEM or ODM
Usage Expanding Copper, Aluminum and Steel Tubes
Applications
  • Air conditioning heat exchangers
  • Water heater tanks
  • Automotive air conditioners
  • Heat pumps
  • Rail transit air conditioners
Compatible with various expander types including manual, vertical, horizontal, and non-shrinkage expanding machines. Custom specifications available upon request.
Product Images
Precision carbide expansion bullet for tube expanders
Close-up view of expansion bullet surface finish
Multiple expansion bullets of different sizes
Expansion bullet side profile showing precision grinding
Expansion bullet end view
Expansion bullet in production environment
Expansion bullet quality inspection
Expansion bullet packaging
Other Tube Expander Spare Parts
Complete set of tube expander spare parts
Tube expander components assembly
Precision machined expander parts
Manufacturing Capabilities
Guangzhou Runshi Mold Co., Ltd. specializes in precision machinery manufacturing for various industries:
  • Air conditioning and heat exchanger components
  • New energy and fluid control industries
  • Medical devices and semiconductor applications
  • Aerospace, photovoltaics, and lithium battery components
  • High-precision automation equipment
Heat exchanger manufacturing application
Precision manufacturing workshop
Frequently Asked Questions
Are you a manufacturer or trading company?
We are the manufacturer with our own production facilities.
What industries use expansion bullets?
Primarily refrigeration and HVAC industries for tube expanding in heat exchangers, air conditioners, and related equipment.
What is your production process?
We work from samples or drawings, with production engineers controlling tolerances and precision throughout manufacturing.
What are your delivery terms?
5-10 days for stock items, 15-20 days for custom orders, depending on quantity.
What are your payment terms?
Orders ≤$10,000 require full advance payment. Larger orders require 50% deposit with balance before shipment.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Guangzhou Runshi Mould Co., Ltd.
Location 101,NO.3,Lane1,Xiao Tang Fang New District,Zhang bian Village,Nancun Town,Panyu District, Guangzhou
Contact Person jackbing

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