What is a Lab-Scale Cylindrical Cell Lab Line?

A lab-scale cylindrical cell lab line is a compact system designed for the research and development of lithium-ion, sodium-ion, solid-state, and next-generation batteries.

Equipment configurations can be customized based on research requirements and budget.

Assembly Flow Chart of Cylindrical Cells

Key Process Stages

It typically covers four main stages, providing a complete workflow for laboratory-scale battery prototyping and testing, ensuring precision and consistency from the initial material selection to the final performance validation.

Tube Furnace

Single Zone Tube Furnace 

Multi-Zone Tube Furnace

Temperature Range: 250℃-2300℃

Heating Zone Length: 205mm-440mm

Vacuum and Controlled Atmosphere Compatible

Widely used for cathode and anode material calcination, sintering, and heat treatment in battery R&D. Supports precise temperature control and controlled atmospheres such as vacuum, nitrogen, or argon.

Swipe left and right on the table to view the complete data.

Types	Muffle Furnace	Tube Furnace	Atmosphere furnace
Chamber size	100*100*100mm 200*150*150mm 300*200*200mm 400*300*300mm Customized	40*205mm/ 60*205mm/ 80*205mm/ 100*205mm/ 40*350mm/ 60*350mm/ 80*350mm/ 100*350mm/ 40*440mm/ 60*440mm/ 80*440mm/ 100*440mm Customized	100*100*100mm 200*150*150mm 300*200*200mm 400*300*300mm Customized
Temperature	1200C/ 1400C/ 1700C Customized	1200C/ 1400C/ 1700C Customized	1200C/ 1400C/ 1700C Customized
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Ball Mill

50ml-20L Jar Capacity Options

Mutilple Jar Material Available(SS/WC/Agate/Al2O3/PTFE)

Vacuum Grinding Capability

Wide Range of Grinding Ball Sizes

Planetary ball mill is widely used in the raw material preparation stage of battery production, especially for cathode and anode active material research and development. It enables high-energy grinding, mixing, and particle size reduction to improve material uniformity and electrochemical performance.

In battery material R&D, zirconia (ZrO₂) grinding jars and zirconia grinding balls are the most commonly used configuration.

They are preferred because of:

• ◆ Ultra-high purity processing
• ◆ Zero metal contamination
• ◆ Excellent wear resistance
• ◆ Suitable for ultra-fine grinding applications

Electrode Coating Machine

Ensure Coating Width: Within 280mm(Customizable)

Max Heating Temperature:150℃

Suitable for Slurry Viscosity: 2000-12000Cps

Substrate Thickness: Al Foil: 11-30um; Cu Foil: 9-30um

Single Side Coating Dry Thickness Range: 20-150um

Type: Three Roll Transfer Intermittent Type

The coating machine is a key equipment in cylindrical cell electrode preparation, used to evenly coat cathode or anode slurry onto current collectors (Al or Cu foil). It ensures uniform thickness, stable loading density, and consistent electrochemical performance.

Function	Desktop Coating Machine	Floor-Type Medium Coating Machine
Machine Type	Compact bench-top system	Floor-standing system
Target Application	Small-size cylindrical cells R&D	Larger-size cylindrical cells & pilot-scale
Production Scale	Low throughput laboratory use	Medium-scale laboratory production
Coating Width	50–300 mm	Customizable
Coating Length	200–800 mm	Customizable
Heating System	Heating or non-heating optional	Heating or non-heating optional
Vacuum System	Built-in vacuum pump included	Not standard / optional depending on configuration
Coating Mode	Single / small-scale coating	Three roll transfer intermittent coating
Production Scale	Low throughput laboratory use	Medium-scale laboratory production
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Roller Press Machine

Roll Specifications: φ210×330mm

Machine Efficiency: 0.8-5m/min

Optional Unwinding or Rewinding System

Max Heating Temperature: 130℃

Adjustable Pressure for Electrode Calendering

Roll press machine is used in the electrode preparation process of cylindrical cell production. It compresses the coated electrode sheets to increase density, improve adhesion, and ensure uniform thickness, which directly enhances battery performance and cycle life.

Function	Desktop Roll Press Machine	Floor-Type Medium Roll Press Machine
Machine Type	Bench-top / small laboratory system	Floor-standing system
Roll Diameter	100 mm	210mm
Rolling Width	100–400 mm	330mm
Heating System	Heating or non-heating optional	Heating or non-heating optional
Pressing Type	Manual / electric options	Hydraulic roll pressing
Roll Orientation	Horizontal (default) / vertical optional	Horizontal / customized layout
Winding System	Not available	Optional unwinding & rewinding
Application Scale	Small-batch laboratory production	Pilot-scale
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Electrode Slitter /Cutter

Cutting Thickness: 100 - 300 microns

Cutting Speed: 0 - 4 meter / minute Adjustable

Cutting Width: A. 4 sets of slitting blades (two blades with slitting width of 58mm. and another two with slitting width of 56 mm)

B. Customization: 25 - 250mm cutting width is available

The cylindrical electrode cutting machine precisely cuts wide electrode strips into fixed-length sheets to match the size of cylindrical cell winding cores.

The cylindrical electrode slitter processes raw electrode rolls into standard-width strips ready for winding cylindrical cells.

It maintains precise sizing and smooth cut edges with outstanding repeatability, laying solid groundwork for follow-up battery winding and assembly.

Cutting Machine Types	Reference Picture
Sheet Cutting Machine
Desktop-style Slitting Machine
Floor-standing Electrode Slitting Machine

Vacuum Drying Oven

Capacity Options: 25L/50L/90L/210L

Temperature Range: Up to 250℃

Apppcation: For Electrode and Jelly Roll Baking

Vacuum drying oven is used after electrode welding or electrode preparation(after winding process) to remove residual moisture and ensure stable storage conditions. It helps prevent oxidation and moisture absorption of electrode sheets, improving battery safety and consistency before cell assembly.

Types	Vacuum Drying Oven	Blast box	Three layer partition vacuum drying oven
Capacity optional	25L/ 50L/ 90L/ 210L Customized	20L/ 42L/ 70L/ 136L/ 210L/ 240L	430L Customized
Temperature	Heated up to 250C	Normal temperature 300 C	Max temp: 150C/ 200C
Vacuum bump	Needed	No need	Needed
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Ultrasonic Welding Machine

Materials: Al/Ni Tabs

Method: 20-40KHz Vibration + Pressure

Apppcation: Weld Tabs and Caps

Ultrasonic tab welding is used to connect electrode tabs in cylindrical cell assembly. It uses high-frequency vibration to achieve solid-state bonding without melting the materials, ensuring low resistance, high conductivity, and reliable electrical connection.

Winding Machine

Multi-size Electrode/Separator Compatibility

Continuous Synchronous Winding Process

Cylindrical or Flat Spiral Wound Core Formation

The winding machine is a core laboratory and pilot-line equipment specially developed for the R&D of lithium-ion pouch batteries and cylindrical cells. It is designed to synchronously wind positive electrodes, negative electrodes and isolating separators in a layered structure, serving as the key process equipment for forming battery cell cores.

Winding Machine Types	Reference Picture
Manual Winding Machine
Semi-Automatic Winding Machine
Automatic Winding Machine

Bottom Spot Welding Machine

Welding Thickness: 0.03-0.2mm

Welding Needle: Single/Double Needles

Drive Mode: Pneumatic

Compatible with Multiple Cell Sizes

This pneumatic spot welding machine is primarily designed for welding 18650 cylindrical cell or battery packs. It delivers reliable and consistent welding performance for nickel tabs ranging in thickness from 0.02 mm to 0.2 mm.

Case Grooving Machine

Grooving Depth: 1.2-2.0mm (Adjustable)

Grooving Width:1.1-1.5mm (Based on Blade Thickness)

Machining Accuracy: ±0.1mm

The Semi-Automatic Grooving Machine is developed for grooving cylindrical steel and aluminum shells pre-assembled with jelly rolls. It performs uniform grooving for cylindrical lithium cells and features interchangeable dies to accommodate various cell specifications. The standard setup is configured for 18650 cells, and it can be quickly adapted for other cell sizes by replacing the dies.

Grooving Machine Types	Reference Picture
Manual Winding Machine
Automatic Winding Machine

Electrolyte Filling Machine

Speed: 1-800rpm (Adjustable)

Ceramic Positive Displacement Injection Pump (Rotary & Reciprocating Type)

Adjustable Filling Volume: 0-2.4mL

The electrolyte filling machine is used to precisely inject electrolyte into cylindrical cells. It ensures accurate dosing and uniform distribution based on the required filling volume and process conditions.

Filling Machine Types	Reference Picture	Operating Environment	Customized
Manual Liquid filling machine		Vacuum Glove Box	Customized
		Vacuum Glove Box	Customized
Semi-Automatic Filling Machine		Drying room	Customized

Electrolyte Diffusion & Degassing Chamber

Injection Accuracy: ±0.3%

Injection Volume: ＞0.2g or More, Adjustable Injection Pump

Injection Speed: Adjustable at 3ml/s (Max 6ml/s)

It is suitable for placing the injected lithium battery in a vacuum state, allowing the electrolyte to quickly and evenly penetrate into the cell.

It is easy to operate and suitable for all types of batteries(especially soft bag battery and cylinder battery). Unique periods of vacuum control system allows electrolyte to thoroughly saturate the electrodes to ensure the best battery charging-discharging performance.

Electrolyte Diffusion & Degassing Chamber Type	Reference Picture
Vacuum static box
Vacuum Filling and Degassing Machine

Sealing Machine

Driving Force: Manual Hydraulic Pressing up to 5T

Standard Die Selectable: 18650/21700/26650/32650

The cylindrical cell case sealing process is a key step in lithium-ion battery packaging. It ensures reliable encapsulation of the cell and directly affects battery safety, sealing performance, and cycle life.

Filling Machine	Reference Picture	Customized
Manual sealing machine		Customized
Automatic sealing machine		Customized

Cell Heat Shrinking Machine

Working Efficiency: 60pcs/min

Scope of Application: 18650/21700 Models

Product Qualification Rate: 98%, Customization Available

The automatic equipment integrates pad placement and PVC heat shrinking for single cells. Equipped with two temperature controllers, the two-stage shrinking furnace works at 100–180 °C. Batteries covered with PVC film are preheated in the first low-temperature section, then fully shrunk in the second high-temperature section.

Model	TMAX-SK01
Application	18650, 21700
Film speed	50PCS/MIN
Film precision	±0.1MM
Power supply	380V/220V
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Formation & Grading Machine

Voltage Options: 5V / 10V / 20V Customized

Current Options:3A/ 6A / 10A / 20A Customized

Channels Optional: 8/16/32/48/64/128/160/256/512 Customized

The cell formation and grading system is used in the final stage of cylindrical cell production for battery activation and performance evaluation. It performs initial charging and discharging to activate the cell, stabilize electrochemical performance, and ensure consistency.

It is widely used for cell formation, capacity testing, and grading screening in lithium-ion battery R&D and production.

Tesing Current	3A/ 6A / 10A / 20A / Customized
Tesing Voltage	5V/ 10V / 20V / Customized
Channel	1 / 2 / 4 / 8 / 128 / 256 / 512 / Customized
Clamp