18650 Cylindrical Battery Microcomputer Precision Dual Pulse Pneumatic Spot Welder

Product Overview

This precision dual-pulse pneumatic spot welder is a high-performance resistance welding system developed for cylindrical battery assembly and other demanding battery production tasks. Microcomputer control, adjustable pulse energy, and pressure-verified welding provide a controlled process for producing strong, clean, and repeatable electrical connections. The dual-pulse sequence prepares the contact surface before completing the weld, improving weld stability while reducing spatter.

The equipment is suitable for 18650 cylindrical battery packs, high-end mobile phone batteries, portable power supplies, power batteries, digital batteries, nickel-metal hydride batteries, and nickel-cadmium batteries. Its compact integrated structure and foot-switch operation support efficient bench-top production, pilot manufacturing, laboratory development, and small-batch assembly in battery and advanced materials environments.

Designed for consistent operation, the unit automatically tracks and compensates for power-grid voltage changes to maintain stable welding output. Independent protection circuits help shield the power and control systems from overheating, external high voltage, and supply fluctuations. Fault indication, automatic alarm, and power shutoff support dependable operation in demanding working environments.

Key Features

• Dual-Pulse Welding Process: The first pulse removes surface coatings and oxides while creating slight deformation at the electrode contact area. The second pulse then welds the base metal, improving joint quality and helping reduce welding spatter.

• Adjustable Pulse Energy: Welding pulse energy is precisely adjustable from 0-99%, allowing operators to adapt the process to different battery materials, tab conditions, and assembly requirements without changing the core equipment.

• Stable Electrical Output: Automatic tracking and compensation for input-voltage variation help maintain stable welding current. This supports more uniform weld strength, attractive weld appearance, and consistent production results.

• Microcomputer Control: A high-speed, high-precision 8-bit microprocessor manages the welding sequence. LED digital display provides direct visibility of operating values and simplifies parameter adjustment.

• Programmable Timing Parameters: Pre-pressure time, hold time, and rest time are adjustable from 0-99. Parameter-locking functionality helps protect validated process settings from accidental changes and reduces setup time between operators or working conditions.

• Pressure-Verified Firing: An internal photoelectric pressure switch permits welding only after both electrodes reach the set pressure. This interlock helps prevent incomplete contact, improves process reliability, and supports repeatable weld formation.

• Buffered Pneumatic Welding Head: The welding head combines a cylinder with spring buffering. Adjustable pressure between the two welding needles and the cushioning effect help prevent the cylinder from applying excessive direct force to the weld point or damaging the welding surface.

• Integrated Adjustable Work Area: The worktable provides stepless height adjustment with hand-tightened locking. Operators can position the workpiece accurately and secure the setting for repeatable battery-pack assembly operations.

• Multi-Level Fault Protection: Separate protection circuits are provided for the high-power and control sections. The system can identify common faults, issue an alarm when overheating or damage occurs, and cut power automatically to protect the equipment.

Applications

Technical Specifications

The dual-pulse process is central to the equipment’s operating value. Surface contamination, plating, and oxide layers can interfere with electrical contact during resistance welding. The preparation pulse helps clean and condition the contact area before the main welding pulse is delivered. By separating these functions, the process is designed to improve weld formation, reduce unnecessary spatter, and create a more attractive finished joint.

Process control is also structured around repeatability. Operators can adjust pulse energy, cycle frequency, pre-pressure time, hold time, and rest time to establish a suitable welding sequence for the workpiece. The LED display provides a direct operating reference, while parameter locking helps preserve an approved setup. This is particularly useful when multiple operators share the equipment or when production moves between different working conditions.

The pneumatic head adds a mechanical control layer to the electrical process. The cylinder supplies the required movement, while the spring buffer moderates the force transferred to the workpiece. The photoelectric pressure switch prevents discharge before the required electrode pressure is reached. Together, these functions help reduce weld variation caused by unstable contact and protect the welding surface from excessive direct loading.

For facility operation, the equipment uses a 220V±10% input and 50HZ±2Hz frequency, with a maximum working air pressure of 6KG. Its integrated construction, compact 550mm X 250mm X 360mm footprint, and foot-switch control make it suitable for organized bench-top assembly areas. The stepless worktable provides practical positioning flexibility when operators handle different battery-pack configurations or fixture arrangements.

Electrical and thermal protection are incorporated into both major circuit sections. Automatic voltage compensation helps maintain output stability when the input supply changes within the stated range. Separate protection circuits help isolate the equipment from external high-voltage conditions, overheating, and power fluctuations. Fault prompts and automatic power interruption provide an additional layer of operational control when abnormal conditions occur.

Why Choose This Product

• Controlled Weld Quality: Dual-pulse preparation and welding provide a structured process for improving joint consistency and reducing spatter across battery assembly operations.

• Precision Process Management: Microcomputer control, LED display, adjustable energy, configurable timing, and parameter locking support repeatable production settings and efficient operator training.

• Protected Industrial Operation: Independent circuit protection, automatic voltage compensation, fault indication, alarm functions, and automatic power shutoff help preserve equipment reliability under variable operating conditions.

• Mechanically Considered Construction: The buffered pneumatic head, adjustable dual-needle pressure, pressure-confirmed discharge, and lockable stepless worktable support accurate positioning and dependable contact control.

Contact us for a quotation and application-specific configuration guidance for your cylindrical battery, portable power, power battery, or battery research workflow.

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