Nickel Plated A3 Steel Cylindrical Cell Case with Built-in PTC Thermistor
PRODUCT PARAMETERS
Description
Gelon supplies professional-grade nickel plated A3 steel cylindrical cell cases with a built-in PTC thermistor for lithium-ion battery research, sample making, and pilot-line development. These cylindrical cell cases are available in 18650, 21700, 26650, and 32650 standard configurations. 4680 configurations are available on request, subject to drawing and PTC specification confirmation.
The case and cap are made of nickel-plated A3 steel, with a nylon seal O-ring and PET insulating gasket. The cap integrates a PTC thermistor for overcurrent protection, making these cases suitable for battery research projects that require reliable housing, sealing, and thermal/electrical protection considerations.
Note: This product is a cell case component for battery research and development. It is not a finished battery cell.
Key Features
- Nickel-plated A3 steel case and cap for durable housing and corrosion resistance
- Built-in PTC thermistor in the cap for overcurrent protection
- Nylon seal O-ring for reliable sealing
- PET insulating gasket for electrical insulation
- Available in 18650 / 21700 / 26650 / 32650 configurations
- 4680 configuration available on request
- Suitable for lithium-ion battery research, sample preparation, and pilot-line R&D
- MOQ: 100 PCS
- CE certification
- Made in China by Gelon
18650 Cylindrical Cell Case Specifications
| Specification | Details |
|---|---|
| Case Dimensions | 18 mm (OD) × 17.5 mm (ID) × 67 mm (H) |
| Top Cap | 17.5 mm (D) × 4.05 mm (H) |
| Top Insulator | 12.5 mm (D) × 0.19 mm (H) |
| Bottom Insulator | 12.5 mm (D) × 0.19 mm (H) |
| Case & Cap Material | Nickel-plated A3 steel |
| Seal O-ring | Nylon |
| Insulating Gasket | PET |
| Weight | 9.50 g per piece |
21700 Cylindrical Cell Case Specifications
| Specification | Details |
|---|---|
| Case Dimensions | 21.2 mm (OD) × 20.7 mm (ID) × 73.1 mm (H) |
| Top Cap | 20.4 mm (D) × 4.2 mm (H) |
| Case & Cap Material | Nickel-plated A3 steel |
| Seal O-ring | Nylon |
| Weight | 8.455 g per piece |
26650 Cylindrical Cell Case Specifications
| Specification | Details |
|---|---|
| Case Dimensions | 26 mm (OD) × 25.5 mm (ID) × 68 mm (H) |
| Top Cap | 25.5 mm (D) × 5 mm (H) |
| Case & Cap Material | Nickel-plated A3 steel |
| Seal O-ring | Nylon |
| Weight | 18.75 g per piece |
32650 Cylindrical Cell Case Specifications
| Specification | Details |
|---|---|
| Case Dimensions | 26 mm (OD) × 25.5 mm (ID) × 68 mm (H) |
| Top Cap | 25.5 mm (D) × 5 mm (H) |
| Case & Cap Material | Nickel-plated A3 steel |
| Seal O-ring | Nylon |
| Weight | 28.85 g per piece |
Specification Note: All dimensions and weights are for reference only. Please request the latest drawing and datasheet before ordering. Specifications are subject to confirmation.
4680 Cylindrical Cell Case
4680 cylindrical cell case configurations are available on request. Please contact Gelon sales with your required dimensions, PTC thermistor parameters, and order quantity for drawing confirmation.
Materials & Construction
| Component | Material | Function |
|---|---|---|
| Case | Nickel-plated A3 steel | Housing and mechanical protection |
| Cap | Nickel-plated A3 steel | Top sealing and connection structure |
| Seal O-ring | Nylon | Sealing |
| Insulating gasket | PET | Electrical insulation |
| PTC thermistor | Built into cap | Overcurrent protection |
The built-in PTC thermistor is designed for overcurrent protection in research cell designs. Please confirm the required PTC trip temperature, holding current, and resistance with our sales team before ordering.
Applications
These cylindrical cell cases are designed for:
- Lithium-ion battery research and development
- 18650 / 21700 / 26650 / 32650 cell sample preparation
- Battery material evaluation and prototype assembly
- Pilot-line battery research projects
- University and laboratory battery research
- Custom cell case development projects
Related products from Gelon include super capacitor cases, aluminum cases, and shaped battery cases.
Ordering Information
| Item | Details |
|---|---|
| Brand | Gelon |
| Model Number | GN-18650 / 21700 / 26650 / 32650 |
| Place of Origin | China |
| Certification | CE |
| Minimum Order Quantity | 100 PCS |
| Price | USD 0.68–1.28 / PCS |
| Packaging | Wooden case |
| Delivery Time | 5–12 days |
| Payment Terms | L/C, D/A, D/P, T/T |
| Supply Ability | 50,000 pcs / month |
Final price depends on cell size, PTC specification, order quantity, and customization requirements.
FAQ
1. What sizes are available?
Standard configurations include 18650, 21700, 26650, and 32650. 4680 configurations are available on request, subject to drawing confirmation.
2. What is the PTC thermistor used for?
The built-in PTC thermistor in the cap is intended for overcurrent protection in battery research cell designs. Please confirm PTC parameters with our sales team for your specific project.
3. What materials are used?
The case and cap are made of nickel-plated A3 steel. The seal O-ring is nylon, and the insulating gasket is PET.
4. What is the MOQ and price?
MOQ is 100 PCS. The reference price is USD 0.68–1.28 per piece, depending on size, PTC specification, quantity, and customization.
5. What are the delivery time and payment terms?
Delivery time is typically 5–12 days. Payment terms include L/C, D/A, D/P, and T/T. Packaging is by wooden case.
6. Is this a finished battery?
No. This is a cylindrical cell case component for battery research and development. It is not a finished battery cell.
7. Can you support customization?
Please contact Gelon with your required dimensions, drawings, PTC parameters, and order quantity. Customization is subject to technical confirmation.
Request a Quote
Looking for nickel plated A3 steel cylindrical cell cases with built-in PTC thermistor for your lithium-ion battery research project?
Contact Gelon today for the latest drawing, datasheet, PTC specification confirmation, and quotation.
About Us
FAQs
Please send us your purchase order by email or call us sales , then we can make the proforma invoice under your request .We need to know the following information for your order before sending your PI
1) Product information–quantity ,specification(size,technological if needed and packing requirements ect.)
2) Delivery time required.
3) Shipping information–Company name, detail address, phone number, destination sea port .
4) Forwarder’s contact details if there’s any in China
It takes 1-5 days for sample order or part of inventoryequipment (depending on the requirements of the order)10-30 days for mass production orders(depending on order requirements, etc.)
Please tell us :
What's your application and your special requestof the products ?
Better to let us know what's your expect performance ?
We accept EXW, FOB, CIF,DAP etc. You can choose the one whichis the most convenient or cost effective for you.
There is a English manual for each equipment that will show youhow to use the machine If there is still any questions,Please feel free to contact us by online service,such as e-mail/skype/phone/whatsapp/wechat at any time.
- The guarantee period : One year
LiBatteryEquip is a professional supplier specializing in complete Battery Laboratory Equipment,Lithium Battery Production Line, and Battery Testing Equipment. With over 20 years of experience in lithium battery material production, and battery equipment manufacturing, we provide customized lithium battery laboratory and pilot production line solutions for various research institutions and enterprises to meet their diverse needs. Our technical and management team possesses more than 20 years of expertise in the battery-related industry, consistently committed to delivering superior products and comprehensive services to our clients.
