Carbide Expansion Bullet for Copper Tube Expanders
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 |
Product Description
Our carbide expansion bullets are precision-engineered from high-quality YG8 material with mirror polishing or coating for superior surface finish. These durable components offer exceptional hardness (HRA 89°-92°) and wear resistance for expanding copper, aluminum, and stainless steel tubes in heat exchanger applications.
Ideal for refrigeration industries including:
- Air conditioning heat exchangers
- Water heater tanks
- Automotive air conditioners
- Heat pumps
- Rail transit air conditioners
Compatible with various expander types: manual, vertical, horizontal, and non-shrinkage expanding machines. Custom specifications available.
Product Images
Other Tube Expander Spare Parts
Manufacturing Capabilities
Guangzhou Runshi Mold Co., Ltd. specializes in precision machinery manufacturing for:
- 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
Frequently Asked Questions
Q: Are you a manufacturer or trading company?
A: We are the manufacturer with our own production facilities.
Q: What industries use expansion bullets?
A: Primarily refrigeration and HVAC industries for tube expanding in heat exchangers, air conditioners, and related equipment.
Q: What is your production process?
A: We work from samples or drawings, with production engineers controlling tolerances and precision throughout manufacturing.
Q: What are your delivery terms?
A: 5-10 days for stock items, 15-20 days for custom orders, depending on quantity.
Q: What are your payment terms?
A: Orders ≤$10,000 require full advance payment. Larger orders require 50% deposit with balance before shipment.