What equipment are required for assembling the cylindrical lithium battery packs?

The automated/semi-automatic cylindrical battery pack assembly line used to integrate and assemble individual cylindrical battery into battery modules or battery packs. The main equipment of cylindrical battery pack assembly line includes cell capacity grading machine, cell sorting machine, paper sticking machine, CCD testing machine, spot welding machine, BMS tester, heat shrinking machine, battery pack comprehensive tester, battery pack aging machine.

Option 1 —— Semi-automatic cylindrical cell lithium battery pack assembly line:

Flow chart of Manual/Semi-auto cylindrical battery pack assembly line:

[Cell capacity grading] → [Cell voltage & IR sorting] → [Insulation paper sticking] → [Automatic CCD tester for positive and negative pole detection before welding] → [Nickel strip welding] → [BMS testing] → [Battery pack comprehensive testing] → [Heat shrink wrap] → [Battery pack outer film coding if needed] → [Battery pack aging testing]

Option 2 —— Full-automatic cylindrical lithium battery pack assembly line

Flow chart of Auto cylindrical battery pack assembly line:

[Whole box cell feeding] → [Automatic cell grabbing] → [Barcode scanning and testing structure] → [Cell buffering channel] → [Secondary cell assembly] → [Sticker application structure] → [Bracket insertion machine] → [CCD visual inspection] → [Manual bracket placement] → [Manual nickel sheet placement and fixture installation] → [Automatic spot welding A-side] → [Flipping structure] → [Automatic spot welding B-side] → [Flipping structure] → [Automatic fixture return] → [Manual nickel sheet placement and lower bracket installation] → [Manual removal of module fixture]

The assembly process of cylindrical lithium battery pack:

Step 1 —— Cylindrical Cell Capacity Grading

1) Product Description

Cylindrical battery cell grading machine is an automatic detection and capacity division system for rechargeable batteries; It has the characteristics of high precision and energy saving. Suitable for the formation, capacity separation testing, and capacity sorting of lithium batteries.

2) Main Features

• Each battery channel has a completely independent constant current and constant voltage source, forming its own circuit without affecting each other.
• The software has the functions of editing and modifying the process library files, creating monitoring, opening and closing documents, printing and setting up.

3) Product Selection

Cylindrical battery cell grading machine is an automatic detection and capacity division system for rechargeable batteries; It has the characteristics of high precision and energy saving. Suitable for the formation, capacity separation testing, and capacity sorting of lithium batteries.

• Each battery channel has a completely independent constant current and constant voltage source, forming its own circuit without affecting each other.
• The software has the functions of editing and modifying the process library files, creating monitoring, opening and closing documents, printing and setting up.

Cylindrical Cell Capacity Grading Machine
Equipment Type	Energy Regenerative
Clamps	Upper and lower pin clamp		Designed using a quick push clamp method
Machine Model	5V 3A	5V 6A	5V 3A	5V 6A	5V 10A	5V 10A	5V 20A	5V 30A
Channels	8/16/32CH		512 CH			256 CH
Machine Picture

Battery sorting machine is used to test the open-circuit voltage and AC internal resistance of general cylindrical lithium cells.

• 5CH(4+1)/11CH(10+1) is optional for 18650/21700/26650/32700 Cells.
• 5CH(4+1)/10CH(9+1) is optional for 32140/33140 Cells.
• Adapted to various types of cells, easy to replace and operate.
• Built in high-precision Japanese BT3561A/HIOKI internal resistance tester with high testing accuracy and fast speed or cost-effective HK 3561 IR Tester optional.
• Barcode Scanner is an optional

Cylindrical Cell Sorting Machine
IR Tester	HK3561/HIOKI BT3561A Optional
Computer	Without/With PC Optional		With PC
18650-32700 Cell Channels No.	4+1=5CHS	4+1=5CHS	10+1=11CHS	Customizable
Product Picture				More Products
32140/33140 Cell Channels No.	4+1=5CHS (With PC)		9+1=10CHS (With PC)
Product Picture

Cylindrical cell paper sticking machine is specially designed to automatically attach insulating barley paper to cylindrical cells (18650/21700/26650/32650, 32140, etc.), preventing cell short circuits and improving assembly safety and consistency.

• PLC+Touch Screen Control
• 18650/21700/26650/32700 Cells compatible
• Speed: 3500-4000 PCS/hour, 18650/21700 cells 4 pcs per punch/26650 cells 3 pcs per punch/32700 cells 2 pcs per punch
• 32140/33140 Cells compatible
• Speed: 3500-4000 PCS/hour, 2 pcs per punch

Cylindrical Cell Insulation Paper Sticking Machine
Control	PLC+Touch Screen Control
Speed	3500-4000 PCS/hour
Cells	18650/21700/26650/32700 Cells	32140/33140 Cells	Customizable
Product Picture

Automatic CCD Tester for Pre-Welding Positive & Negative Electrode Inspection to ensure that the positive and negative electrodes are placed correctly before spot welding to improve the consistency of the battery pack and avoid short circuits.

Cylindrical Battery Cell Positive and Negative CCD Tester
Operating system	Industrial computer + smart camera
Detection efficiency	1 second/PCS
Battery pack size	400*300mm/ (customizable)		Customizable
Styles available	Desk type	Pipeline-style
Product Picture

Spot welding machine will complete precision welding between battery poles and conductive sheets, ensuring stable conductivity and structural firmness for battery PACK assembly.

• Suitable for 0.2mm pure nickel welding, above 0.2mm should be bumped and slotted
• Flexible Customization: The Y-axis and Z-axis strokes can be customized according to customer needs, meeting different production environment requirements.
• Touch screen display, more convenient operation and clearer display.
• With upper computer control model has Data Upload Functionality: Welding data can be uploaded in real-time to the MES system, facilitating production monitoring and management, thereby increasing overall production transparency.

Cylindrical Battery Pack Spot Welding Machine
Welding Material	Pure nickel/nickel plated strip etc.
Welding Method	Manual		Automatic
Product Type	Gantry		Single side		Double sided
Optional examples	Pneumatic	Electric	With PLC	With PC	With PLC	With PC
Welding Thickness	Specific welding thickness depends on the actual welding material
Product Picture

BMS Tester is a specialized device designed to verify the functionality and performance of battery protection boards (BMS).

• Overcharge/Overdischarge Protection Test
• Overcurrent/Short Circuit Protection Test
• Temperature protection test
• Internal resistance and conduction resistance testing
• Self consumption detection
• Communication function verification (for intelligent BMS): Test communication interfaces such as CAN, RS485, I2C, etc. to read SOC, voltage, temperature and other data accurately.

Battery Management System Testing Machine
Pack Series	1-52S Battery Pack/Module
Current	120/150/200/300/400/500/600/800A etc		Customizable
Computer	Without computer	With computer
Product Picture

Battery comprehensive tester is suitable for all lithium-ion battery packs with CH+P+CH - P - ports to test various comprehensive performance parameters of the battery pack.

The battery comprehensive tester is to apply a load to the battery or apply a small AC current to measure the open circuit voltage, AC internal resistance, discharge test, discharge overcurrent test, short circuit protection test, charge test and charge protection test and other parameters to quickly screen and judge the performance of the battery and good or bad, by setting the upper and lower limits of the measurement parameters, it is easy to quickly detect the bad battery from a batch of finished batteries.

Battery Pack Comprehensive Tester
Voltage Range	50/60/100/120V/200V etc			Customizable
Current Range	120/200/300/500/600A etc
Machine Picture

This Heat Shrinking Machine is an economical shrink packaging machine that is suitable for single item packaging or packaging of items with bottom support. The machine is widely used in drinks, daily chemical, building materials, food with paper tray or without paper tray etc.

Using high-quality stainless steel heating tubes, the internal bidirectional thermal circulation air ensures uniform heat, constant temperature, stable reliability, low noise, and long service life.

Intelligent inkjet printer (optional conveyor), with its agile and beautiful appearance, excellent stability, high-quality printing, and high utilization rate of consumables, effectively improves production efficiency and saves costs. Suitable for various industries, including dot matrix, graphics, QR codes, numbers, dates, etc., suitable for various materials and surfaces.

Battery pack aging machine is applied to the integrated charge discharge cycle test system of low string lithium battery pack cycle charge and discharge, battery pack function test and charge discharge data monitoring, such as electric tools, solar energy storage, fascia gun and so on.

The device has four test steps: charging, discharging, shelving, and cycling. By editing the corresponding steps, the battery can be tested in accordance with the set process.

Battery Pack Aging Testing Machine
Voltage	20V-1650V					Customizable
Current	10A-1200A
Channels	1/2/3/4/6/7/8/12/16/32 etc
Type	Standard type/with energy regenerative function (optional)
Voltage&Current	30V 10A charge 10A discharge 100CH	70V 10A charge 20A discharge	85V 10A charge 20A discharge	100V 10A charge 20A discharge	100V 50A charge 50A discharge
Product Picture

Prismatic battery PACK has become the mainstream choice in the three major fields of new energy vehicles, energy storage systems, and industrial equipment due to its high structural strength, good heat dissipation, high space utilization, and good safety. Its application covers a wide range of scenarios from giant power grids to micro robots.