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{"title":"18650 Cylindrical Battery Steel Case + Explosion-Proof Cap + Upper & Lower","imgUrl":"https:\/\/img.chinax.com\/nimg\/0d\/16\/5d6049ff5c2584921759564c9769-200x200-1\/18650_cylindrical_battery_steel_case_2b_explosion_proof_cap_2b_upper_26_lower_insulation_sheets_e2_80_94_cylindrical_battery_case_.jpg","attrs":{"Brand Name":"XWELL","Model Number":"18650","Place of Origin":"China","Minimum Order Quantity":"50pcs"}}
{"title":"Pre-Slotted 21700 Battery Case Kit (Pre-Nickel-Plated Steel) with Insulation","imgUrl":"https:\/\/img.chinax.com\/nimg\/0f\/b5\/8d6be23f2879cdea1ebd9b2665cb-200x200-1\/pre_slotted_21700_battery_case_kit_28pre_nickel_plated_steel_29_with_insulation_gaskets_26_explosion_proof_cap.jpg","attrs":{"Brand Name":"XWELL","Model Number":"21700","Place of Origin":"China","Minimum Order Quantity":"50pcs"}}
{"title":"26650 Cylindrical Battery Steel Case Assembly with Explosion-proof Cap and PTC,","imgUrl":"https:\/\/img.chinax.com\/nimg\/dd\/f7\/f30727d8d9df0071a5660890ca62-200x200-1\/26650_cylindrical_battery_steel_case_assembly_with_explosion_proof_cap_and_ptc_2c_upper_and_lower_insulation_sheets.jpg","attrs":{"Brand Name":"XWELL","Model Number":"26650","Place of Origin":"China","Minimum Order Quantity":"100pcs"}}
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{"title":"Pre-nickel plated steel shell 18650 Battery Shell with 18mm Diameter and 65mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/d5\/5e\/6e9758e84626fcb73246b8ebf49d-200x200-1\/pre_nickel_plated_steel_shell_18650_battery_shell_with_18mm_diameter_and_65mm_length_for_new_energy_battery_accessories.jpg","attrs":{"Brand Name":"XWELL","Model Number":"18650","Certification":"","Place of Origin":"China"}}
{"title":"Pre-Nickel Plated 21700 Battery Steel Shell 18mm Diameter for Cylindrical","imgUrl":"https:\/\/img.chinax.com\/nimg\/79\/4b\/82c27d574dfa0a813c0d17ceef53-200x200-1\/pre_nickel_plated_21700_battery_steel_shell_18mm_diameter_for_cylindrical_lithium_battery_accessories.jpg","attrs":{"Brand Name":"XWELL","Model Number":"21700","Certification":"CE","Place of Origin":"China"}}
Slotted 18650 Cylindrical Battery Case (Pre-Nickel-Plated Steel Shell) + Insulation Gaskets + Explosion-Proof Cap
Our pre-assembled slotted 18650 case set integrates high-strength steel casing, reliable explosion-proof cap, and premium insulation sheets—designed to streamline your battery production while maximizing safety and performance.This battery case is pre-slotted by a grooving machine, eliminating the trouble of customers having to slot traditional steel cases themselves and enabling customers to assemble batteries more quickly and conveniently.
Key Features & Advantages
Professional Standards: Multi-process stamped construction using high-quality materials with no production shortcuts
Reliable Performance: Specialized structural design provides dependable power-off and explosion-proof functionality with stable internal pressure
Quality Assurance: Rigorous dimensional inspections using advanced testing equipment to ensure compliance with standards
Custom Solutions: Manufacturer-direct support for custom specifications based on provided drawings
Technical Specifications
Component
Parameter
Specification
Steel Case
Material
Pre-nickel plated steel shell
Dimensions
Φ18mm * 65mm (customizable)
Wall Thickness
0.2-0.3mm
Surface Treatment
Electroplating/Passivation
Explosion-Proof Cap
Shell and Cover Material
Nitric acid nickel-plated A3 steel
Sealing O-ring and Washer Material
Nylon
Gasket
PET
Insulation Sheets
Material
PP (Polypropylene)
Thickness
0.15-0.2mm
Heat Resistance
≤120℃
Applications
Core Component: Essential structural element for cylindrical battery assemblies
Primary Industry: New energy battery manufacturing supply chain
Specific Uses: Automotive power lithium battery R&D/production and 3C
Experimental materials
Why Choose Our 18650 Case Set?
All-in-One Convenience: Pre-matched components eliminate the need for separate sourcing and compatibility testing—reduce assembly time by 30%.
Automotive-Grade Safety: Explosion-proof cap and insulation sheets meet IEC 62133 and UN38.3 standards—critical for EV and ESS applications.
Strict Quality Control: 100% inspection for each component (dimension, pressure resistance, insulation) ensures 0 defective rate in batches.
Customization Support: Tailor case thickness, surface treatment, and insulation material to your specific battery design.
Scalable Supply: Annual production capacity of 300 million sets—support bulk orders for large-scale battery manufacturers.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2016
Total Annual:
3000000-5000000
Employee Number:
50~100
Ecer Certification:
Verified Supplier
GUANGDONG XWELL TECHNOLOGY CO., LTD. is a high-tech enterprise specializing in intelligent equipment design, production and sales, providing mechanical engineering technology design and consulting services, electronic engineering design and consulting services. XWELL's core team was established in 2... GUANGDONG XWELL TECHNOLOGY CO., LTD. is a high-tech enterprise specializing in intelligent equipment design, production and sales, providing mechanical engineering technology design and consulting services, electronic engineering design and consulting services. XWELL's core team was established in 2...