Electrolytic mold cleaning machines were already widely used in the Japanese injection molding industry as early as 2000, helping Japanese injection molding manufacturers gain a global reputation.
Shanmo's electrolytic mold cleaning machine combines the advantages of electrolysis and ultrasonic cleaning. It uses ultrasound to deliver electrolyte into various hard-to-clean areas of the mold, such as uneven surfaces, corners, and ejector pin holes. Utilizing the principle that hydrogen molecules are the smallest molecules, hydrogen gas penetrates the dirt and is then electrolyzed back into hydrogen gas, pushing the dirt away from the mold surface.
Electrolytic Mold Cleaning Machine Working Principle

Electrolysis Working Principle
Shanmo's electrolytic mold cleaning machine combines the advantages of electrolysis and ultrasound. The mold is placed at the bottom of the cleaning basket, in contact with the negative electrode. Hydrogen molecules in the electrolyte gather from the positive electrode to the negative electrode. Because hydrogen molecules are the smallest molecules, they can penetrate the dirt adhering to the mold. When electrolysis begins, the hydrogen molecules electrolyze into hydrogen gas, which expands and pushes off the dirt from the mold surface.
Ultrasound allows the electrolyte to be flushed and vibrated, delivering the electrolyte to various hard-to-clean areas of the mold, such as uneven corners and ejector pin holes.
Product Model

High-precision molds are critical in industries such as automotive, electronics, medical devices, and consumer goods. Over time, molds accumulate rust, scale, and polymer residues in cavities and cooling channels, reducing thermal efficiency, increasing cycle times, and compromising product quality. Traditional manual cleaning methods often require disassembly, are labor-intensive, and carry risks of surface damage or incomplete cleaning. To address these challenges, manufacturers increasingly adopt S2-30 Single-Tank Electrolytic Mold Cleaning Machines, which provide controlled, efficient, and repeatable cleaning, enhancing mold longevity and operational consistency.
The S2-30 single-tank system relies on electrolytic cleaning technology, combining chemical solutions and controlled electrical current to remove rust, scale, and residues. Unlike multi-tank systems, this single-tank configuration integrates pre-treatment, electrolytic action, and rinsing into one vessel, simplifying operation while maintaining high efficiency. Key technologies include precise current density control, adjustable temperature settings, and real-time monitoring of electrolyte concentration. These features ensure uniform cleaning of complex geometries, narrow channels, and high-precision surfaces without mechanical abrasion, preserving mold integrity.
The S2-30 is composed of a corrosion-resistant stainless steel tank, circulation pumps, filtration systems, and a programmable control interface. All parts exposed to the electrolyte are manufactured from durable, chemical-resistant materials to withstand repeated industrial operation. Performance indicators include consistent cleaning efficiency, adaptability to various mold sizes and materials, and low operator intervention. During production, focus is placed on leak-proof assembly, electrical safety compliance, and precise component alignment to ensure reliable operation over long service periods.

Cleaning effectiveness depends on multiple factors. Deposit type—mineral scale, rust, or polymer residue—determines the choice of electrolyte and electrical parameters. Mold geometry, channel length, and diameter influence circulation and cleaning uniformity. Water quality, proper filtration maintenance, and accurate calibration of current and temperature settings are essential to achieve repeatable results. Incorrect parameter settings may result in under-cleaning, surface corrosion, or uneven removal of deposits.
When selecting a supplier for the S2-30, manufacturers should evaluate technical support, equipment customization, and after-sales services. Availability of compatible electrolytes, spare parts, and compliance with local safety and environmental regulations is crucial. Suppliers with local service networks or global support capabilities help minimize downtime and integrate the machine effectively into preventive maintenance programs.
Common pain points include incomplete cleaning of long or narrow cooling channels, variability in manual cleaning methods, and potential damage from aggressive chemical use. Single-tank systems like the S2-30 address these issues by standardizing cleaning parameters, automating process control, and monitoring critical factors such as current, temperature, and electrolyte composition. This reduces operator dependency and ensures repeatable, high-quality cleaning results.
Automotive manufacturers use the S2-30 to clean multi-cavity injection molds, ensuring balanced cooling and consistent part quality. Electronics producers benefit from precise cleaning of dies for housings and connectors, where residues can impact dimensional accuracy. In medical device production, validated cleaning cycles maintain compliance while protecting delicate mold surfaces. Across industries, the S2-30 supports preventive maintenance schedules, enabling regular mold cleaning without halting production lines.
The industry is trending toward automation, environmental sustainability, and data-driven maintenance. Integration with smart factory systems allows the S2-30 to trigger cleaning cycles based on real-time sensor data, optimizing chemical and energy usage. Closed-loop electrolyte systems, automated monitoring, and adaptive process control improve efficiency and reduce operational costs. Future developments are expected to focus on predictive maintenance, eco-friendly electrolyte formulations, and compatibility with advanced mold designs, including additive-manufactured cooling channels.
Q1: How frequently should molds be cleaned using the S2-30?
Cleaning frequency depends on production intensity, mold material, and water quality. Sensor-based monitoring can optimize timing for condition-based cleaning.
Q2: Is the single-tank method safe for delicate molds?
Yes. Controlled electrolytic cleaning removes deposits without mechanical abrasion, preserving mold surfaces.
Q3: Can automation reduce downtime compared to manual cleaning?
Automated cleaning ensures consistent, repeatable results, reduces labor requirements, and integrates easily into preventive maintenance schedules.
The S2-30 Single-tank electrolytic mold cleaning machine provides an efficient, controlled, and automated solution for maintaining high-precision molds. By combining electrochemical cleaning with precise monitoring and process control, it enhances operational efficiency, extends mold lifespan, and maintains consistent product quality. As manufacturing standards evolve, the S2-30 will remain a key tool for modern industrial maintenance, supporting both high-volume production and precision applications.
@2024 Shanmo Precision Machinery (Kunshan) Co., Ltd. All rights reserved. Mold waterway cleaning machine,
electrolytic mold cleaning machine, mold cleaning machine manufacturer
TEL:+86 512-55001520
whats app:+86 15599099006 / +86 15599099098
E-Mail:sanmo030788@gmail.com
Add:No. 56, Yangjiaqiao Road, Zhoushi Town, Kunshan City Jiangsu Province


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