Slurry Degasser
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Conductive Carbon Paste Defoaming Machine
Eliminate Bubbles & Improve Dispersion for Conductive Carbon Paste · Uniform Carbon Film & Consistent Resistance
Vacuum Defoaming + Break Up Carbon Black / Graphite Agglomerates + Stable Resistance Across Batches
SIENOX conductive carbon paste defoaming solution addresses agglomeration and air entrapment issues of carbon paste containing graphite and carbon black. It realizes stirring, defoaming and dispersion simultaneously under vacuum to deliver uniformly printed carbon films with consistent resistance and reduce pinholes and resistance drift.
✓ CE certification ✓ ISO9001 Quality System ✓ RoHS Compliance ✓ Custom voltage available (110V/220V)
Why Do We Need Conductive Carbon Paste Defoaming Machine
Membrane Switches & ButtonsCarbon paste is printed to form conductive contacts for membrane switches and buttons. Air bubbles and agglomerates create pinholes and uneven thickness in carbon films, resulting in contact resistance drift and button failure. | Carbon Film ResistorsPrinting for carbon film resistors and heating sheets requires stable resistance values. Agglomeration and bubbles cause resistance dispersion and poor batch consistency. | EMI ShieldingEMI shielding carbon paste demands continuous and dense coatings. Bubbles and pinholes break the continuity of shielding layers and weaken shielding performance. |
✨ Traditional Dilemma: Carbon black features large specific surface area and tends to agglomerate severely. Manual stirring brings air entrapment and agglomerates, leading to unstable resistance of carbon films. Vacuum defoaming with strong dispersion is required
Why Choose SIENOX Carbon Paste Defoaming Solution
Break Carbon Black AgglomeratesRotational shear breaks up agglomerates of carbon black and graphite for continuous and uniform carbon films with consistent resistance. | Vacuum DefoamingTrapped air generated during stirring is removed synchronously to reduce pinholes in carbon films and deliver more reliable shielding and conductivity. | Reproducible Batches100 groups of formula storage ensures stable carbon film resistance across batches. Smooth process scale-up from lab samples to mass production. |
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Equipment Supporting Description
Supporting Process Workflow Weigh resin and powder → Vacuum stirring, mixing and degassing → Discharge for compaction / casting → Curing / sintering. | ![]() |
Specifications & Parameters
Selection Guide
| Carbon Paste Application | Typical State | Recommended Defoaming Method | Recommended Equipment |
| Formula R&D / Sampling | Small amount of carbon paste | Centrifugal / Vacuum Defoaming & Dispersion | C Series / ZK Series |
| Carbon Paste for Membrane Switch | High-viscosity paste | Vacuum Stirring, Defoaming & Dispersion | MIX60 / MIX80 |
| Carbon Film Resistor / Heating Sheet | Medium to High Viscosity | Vacuum Stirring, Defoaming & Dispersion | MIX Series / MIX1000plus |
| Mass Shielding Coating | Medium Viscosity | Vacuum Stirring & Defoaming | MIX1000plus |
Our Partners
Trusted by leading industrial manufacturing clusters and advanced university laboratories worldwide
FAQ - Frequently Asked Questions
Answers to common questions about product performance and everyday process selection
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What is the working principle of a centrifugal defoaming machine?
Principle of centrifugal defoaming machine: The bubbles are released by the downward principle of gravity.
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How is the after-sales service?
The company has professional after-sales service personnel, 24-hour dedicated service, and one-on-one technical support to solve your worries.
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Why choose SIENOX?
There are many reasons for choosing SIENOX, and the following are some of the main reasons:
1. Professionalism: Our team consists of a group of professional individuals with rich experience and knowledge in their respective fields. We not only understand industry trends and best practices, but also provide practical and feasible solutions.
2. Service quality: We focus on customer needs and satisfaction, and are always committed to providing high-quality services. We not only respond quickly to customer needs, but also provide customized services according to their requirements.
3. Reliability: We adhere to the principles of integrity and professionalism, always adhering to commitments and agreements. Our work methods and deliverables comply with industry standards and best practices, enabling our clients to trust us.
4. Innovation: We continuously explore new methods and tools to provide better services and meet customer needs. We encourage innovation and experimentation, and are willing to accept challenges and change.
5. Cost effectiveness: We provide cost-effective services that not only help customers save costs, but also improve efficiency and productivity. We always prioritize the interests of our customers and provide them with the best solutions.
6. Teamwork: We believe in the power and value of teamwork, and our team members support, collaborate, and respect each other. We establish close cooperative relationships with customers, partners, and other stakeholders to achieve common goals.
The above are just some of the reasons for choosing us. We believe there are many other advantages and values that can be provided to customers. If you are looking for a professional, reliable, and high-quality service provider, we look forward to working with you.
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How does the stirring and defoaming machine work?
The SIENOX stirring and defoaming machine performs defoaming through centrifugal force at revolution and stirring through shear force formed by revolution and rotation,
Assisted by a vacuum pump to extract gas and achieve a vacuum state, removing nanoscale tiny bubbles. No contact with materials, no secondary pollution, and no secondary waste.
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What is the function of a defoaming machine?
A defoaming machine is a device used to remove bubbles from liquids. Its function is to assist in the liquid mixing, reaction, coating, printing, infusion and other process steps in the production process, avoiding the generation of bubbles and their impact on the final product. In many industrial and laboratory environments, removing bubbles is essential as they may have a negative impact on product quality, such as affecting surface tension and stability. Defoaming machines typically use various techniques such as vibration, ultrasound, centrifugation, etc. to achieve effective bubble removal. It has a wide range of applications, including but not limited to semiconductors, solar energy, optics, biotechnology, materials science, etc.
Technical Specification List
Full‑line standardized specifications for accurate process evaluation and equipment selection
| Carbon Paste Application | Typical State | Recommended Defoaming Method | Recommended Equipment |
| Formula R&D / Sampling | Small amount of carbon paste | Centrifugal / Vacuum Defoaming & Dispersion | C Series / ZK Series |
| Carbon Paste for Membrane Switch | High-viscosity paste | Vacuum Stirring, Defoaming & Dispersion | MIX60 / MIX80 |
| Carbon Film Resistor / Heating Sheet | Medium to High Viscosity | Vacuum Stirring, Defoaming & Dispersion | MIX Series / MIX1000plus |
| Mass Shielding Coating | Medium Viscosity | Vacuum Stirring & Defoaming | MIX1000plus |
Multi‑Industry Solutions
Covering stirring and debubbling applications of typical materials across six major industries
Membrane SwitchKey contacts & conductive carbon film |
Carbon Film ResistorResistor component & carbon film printing |
Heating SheetFlexible heating sheet & electrothermal film |
EMI ShieldingElectromagnetic shielding coating & grounding |
Carbon Paste ProductionR&D and filling of conductive carbon paste |
Thick Film CircuitCarbon thick film circuit & leads |
Comprehensive Equipment Operation Demo Videos
Measured Defoaming‑Process Performance
Measured Processing Results for Six Typical Materials
Paste Materials |
Adhesive with Powder |
Polymer Materials |
Pharmaceutical Gel |
Silver Paste Materials |
Battery Slurry |
Precautions for Use
| Notes | Operation Instructions |
| Dispersion Time | Carbon black has a large specific surface area. Control vacuum stirring duration and shear strength to balance dispersion and defoaming. |
| Loading & Rotation Speed | Match loading volume and rotation speed for high-viscosity carbon paste to prevent carbon black sedimentation and re-agglomeration. |
| Slow Pressure Relief | Release pressure slowly after defoaming to avoid re-foaming and splashing of paste. |
| Prompt Printing | Print promptly after defoaming and dispersion to prevent re-agglomeration of carbon black upon standing. |
* Internal laboratory test data. Actual results vary with paste formulation and printing process. Contact sales for real customer cases.
Customer Delivery & Application Cases
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