1、What is a Coin Cell Crimper? Please provide the text you would like translated.

The Coin Cell Crimper is a precision mechanical device specifically designed for sealing coin cells (also known as button cells). It is commonly used in laboratory research and development, small-scale production, and battery testing. Coin cells are small in size (common sizes include CR2032, CR2025, etc.) and have a compact structure. The sealing of the outer shell and cover requires precise control of pressure and positioning. This device achieves sealing and encapsulation by mechanically applying pressure to tightly press the battery shell and cover together, preventing electrolyte leakage and moisture ingress while ensuring the stability of the internal structure of the battery. Please provide the text you would like translated.

Structurally, it mainly consists of a frame, pressure regulating module, positioning fixture, pressure head assembly and operation panel (some high-end models are equipped with a numerical control system). According to the operation mode, it can be classified into manual type, semi-automatic type and fully automatic type; in terms of pressure control methods, there are mechanical pressure regulating type and digital display pressure regulating type. The core difference lies in the precision of pressure control and operation efficiency. Please provide the text you would like translated.

2、The Core Function of the Coin Cell Crimper

The quality of the packaging of coin cells directly affects the performance, safety, and service life of the battery. The core function of this equipment revolves around "reliable sealing", which specifically includes three aspects:

Ensuring sealing performance: By precisely applying pressure, the battery casing and the cover plate's sealing groove (usually with a sealing ring) are tightly adhered, blocking the channels for electrolyte leakage - this is the foundation for the battery to operate normally. If the sealing is not good, electrolyte leakage can lead to a decrease in battery capacity, short circuits, or even swelling. Please provide the text you would like translated.

Maintaining a stable internal environment of the battery: After sealing, it can prevent external substances such as air and moisture from entering the battery, avoiding oxidation of electrode materials and decomposition of electrolyte, ensuring the battery's cycle life and storage stability. This is particularly important for lithium-based button batteries (with highly active electrode materials). Please provide the text you would like translated.

Encapsulation requirements for different scenarios: In the laboratory, manual or semi-automatic models can meet the R&D and testing needs of small batches and multiple specifications of batteries; in production scenarios, fully automatic models can achieve high consistency and high efficiency encapsulation, suitable for industrial mass production. Additionally, some models support pressure adjustment and can be adapted to encapsulate button batteries of different materials (stainless steel, aluminum shells) and different sizes. Please provide the text you would like translated.

3、How to Choose a Coin Cell Crimping Tool? Please provide the text you would like translated.

The selection should be based on the usage scenarios, battery parameters and core requirements, with a focus on the following four key dimensions:

(1) Clearly define the usage scenarios and production capacity requirements.

Laboratory research and development / small batch testing: Manual or semi-automatic models are preferred, featuring flexible operation and compact size (typically around 220mm×150mm×300mm, suitable for desktop or glove box placement), capable of meeting the packaging needs of 10-100 cells per batch. Some manual models have a hand-crank operation force that can be controlled within 6kg, making operation effortless. Please provide the text you would like translated.

Medium-volume production: Choose semi-automatic type (requiring manual loading and machine sealing), with an encapsulation efficiency of approximately 100-500 pieces per hour. It has better pressure stability than the manual type and is suitable for sample mass production or small-scale production. Please provide the text you would like translated.

Mass industrial production: Choose the fully automatic type, which integrates automatic feeding, positioning, sealing, and discharging functions. The efficiency can reach over 1000 pieces per hour, and some complete line equipment can even achieve a production capacity of 3000 pcs/h. It is equipped with a numerical control system to achieve closed-loop pressure control, with high consistency, suitable for large-scale battery production. Please provide the text you would like translated.

(2) Battery Size and Material Compatibility

Confirm the range of button battery sizes supported by the device. Common specifications include CR2016 (φ20mm×1.6mm), CR2032 (φ20mm×3.2mm), and CR2450 (φ24mm×5.0mm). Prefer models with replaceable battery holders. Most models can be adapted to different battery sizes by changing mold accessories, avoiding the issue of incompatibility after changing battery specifications in the future. Please provide the text you would like translated.

In terms of battery material, stainless steel shell batteries have high pressure requirements (requiring stronger sealing force), while aluminum shell batteries need to control pressure to prevent shell deformation. The pressure range for manual models is typically 0-500kg (some can reach 8 tons), and for numerical control models, it can reach 0-1000kg. During packaging, the actual pressure is generally controlled between 80-120kg/cm² or 0.8-1.2 tons. It is necessary to select a model with a pressure adjustable range that matches the material. Please provide the text you would like translated.

(3) Pressure Control Accuracy

Pressure accuracy is a key factor affecting the sealing quality. Insufficient accuracy may lead to some batteries being sealed too loosely (leaking) or too tightly (deformation of the outer shell and damage to the internal electrode plates).

Laboratory scenario: Choose a digital pressure-adjustable type with a pressure accuracy of ≤±5kg, which supports pressure value display and locking. Some models are equipped with an embedded pressure gauge, allowing real-time observation of pressure changes and facilitating the repetition of experimental parameters. Please provide the text you would like translated.

Production scenario: Preferentially select CNC models with pressure feedback, with an accuracy of ≤ ±2kg, capable of real-time monitoring of the sealing pressure, and automatically alarming in case of abnormalities to ensure product consistency. Please provide the text you would like translated.

Try not to choose pure mechanical manual models without pressure display (only adjusted by knobs), as their pressure repeatability is poor and they are not suitable for scenarios with high requirements for sealing quality. Please provide the text you would like translated.

(4) Ease of operation and safety

Ease of operation: Focus on whether the fixture positioning is precise (with scale or positioning pin), whether the press head can be lifted and lowered smoothly, and whether it is easy to clean (to avoid corrosion from residual electrolyte). Some models have detachable handwheels, which are convenient for installation and use in glove boxes. Some are equipped with foot switches, which can free up both hands for operation and improve efficiency. Please provide the text you would like translated.

Safety: It must be equipped with overload protection function (automatically shut down or open the safety valve when the pressure exceeds the set value). The frame is preferably made of stainless steel, high-strength aluminum alloy or chrome steel, and the surface is treated by electroplating or spraying to prevent rust and ensure a stable structure, avoiding equipment shaking or component detachment during sealing. Especially for high-pressure models, safety protection design should be emphasized.