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  • Quality Aluminum Serpentine Cooling Ribbon / Snake Tube for 21700 Cells with thermal pads factory
  • Quality Aluminum Serpentine Cooling Ribbon / Snake Tube for 21700 Cells with thermal pads factory
  • Quality Aluminum Serpentine Cooling Ribbon / Snake Tube for 21700 Cells with thermal pads factory

Aluminum Serpentine Cooling Ribbon / Snake Tube for 21700 Cells with thermal pads

Basic Properties
Place of Origin: China
Brand Name: Trumony
Certification: IATF/ISO/SGS
Model Number: TR-RO-260717
Trading Properties
Minimum Order Quantity: 10
Price: negotiable
Payment Terms: L/C,T/T
Supply Ability: 100000 pcs per year
Tags

round aluminum tubing

aluminium alloy tube

oval aluminum tubing
Specifications
Product name: Serpentine Aluminum Tube Length: 15 Cell
Specification: According To Customers' Requirement Shape: Snake Shape
Surface: Coating/Insulation/Film Process: Bending/Coating/Welding/Extrusion
Alloy: 3003,3102,1100,1050 Packing: Robust Package For Express Or Shipment
Application: Electrical Vehicle 21700 Battery Pack Fitting: L Type/straight Type
High Light:

Aluminum Serpentine Cooling Ribbon for 21700 cells

,

Snake Tube with thermal pads

,

Aluminum Microchannel Tube for cooling
Product Description
Aluminum Serpentine Cooling Ribbon / Snake Tube for 21700 Cells with thermal pads

1. Product Introduction

Liquid cooling tubes are a popular solution for battery thermal management, suitable for both cylindrical and prismatic battery cells. Compared to air cooling, they offer a higher heat exchange coefficient and a more compact footprint, enabling faster cooling and heating.
Our serpentine cooling ribbon (snake tube)​ is specifically optimized for 21700 cylindrical cells. The tube's curvature and pitch are precisely designed to wrap snugly around the cell surface, maximizing contact area and heat transfer efficiency. This ensures uniform temperature distribution across the entire battery module, which is critical for 21700 cell performance and lifespan.
With our strong manufacturing capabilities, we can accommodate diverse requirements including custom diameters, wall thicknesses, and bend radii. We provide an all-in-one service package covering design, simulation, manufacturing, and surface treatment.

2. Application

The serpentine cooling tube is primarily used for battery pack cooling in electric vehicles (EVs)​ and energy storage systems (ESS)​ , particularly in modules using 21700 cylindrical cells​ for high-energy-density applications.

3. Commonly Used Material Chemical Composition

No.
Alloy
Si
Fe
Cu
Mn
Mg
Cr
Zn
V
Ti
1
1050
≤0.25
≤0.40
≤0.05
≤0.05
≤0.05
---
≤0.05
≤0.05
≤0.03
2
1100
≤0.95 (Si+Fe)
0.05–0.20
≤0.05
---
---
≤0.10
---
---
3
3102
≤0.40
≤0.70
≤0.10
0.05–0.40
---
---
≤0.30
---
≤0.10
4
3003
≤0.15
≤0.15
≤0.01
0.90–1.10
≤0.03
≤0.03
≤0.05
≤0.05
≤0.05
Both 3003​ and 3102​ alloys offer excellent corrosion resistance, making them widely used in heat exchange applications. For 21700 snake tubes, 3003 alloy​ is the most common choice due to its good formability and thermal conductivity.

4. Supply State and Mechanical Properties

Alloy
Temper
Tensile Strength
Yield Strength
Elongation
1050
O / F / H111 / H112
≥65 MPa
≥20 MPa
≥25%
1100
O / F / H111 / H112
≥75 MPa
≥20 MPa
≥25%
3102
O / F / H111 / H112
≥75 MPa
≥20 MPa
≥25%
3003
O / F / H111 / H112
≥75 MPa
≥20 MPa
≥25%

5. Products for Your Reference

  • Cylindrical Battery Thermal Management (18650, 21700, 4695)
  • Square (Prismatic) Battery Thermal Management
  • Electric Vehicle Thermal Management
  • All-Aluminum Liquid Cooling Tray
  • Soft Pack Battery Thermal Management
  • Motor Thermal Management

6. FAQ

Q: Are you a trading company or a manufacturer?
A: We are a manufacturer with over 10 years of industry experience.
Q: What are your payment terms?
A: Typically, we require a 30% deposit via T/T, with the balance paid before shipment.
Q: How long does it take for samples and mass production?
A: New molds and free samples (within 5 kg) usually take about 15–20 days. Once confirmed, mass production can be completed within 25–30 days.
Q: Do you offer OEM/ODM services?
A: Absolutely! We are happy to provide these services.
Q: Can I get a sample from you?
A: Of course! We would be glad to send you samples for quality evaluation.
Q: Is it possible to place a sample order?
A: Yes, we accept sample orders and also offer design support.
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