Coolant Purification and KSS Filtration Systems
FRIESS coolant purification and KSS filtration systems remove tramp oil, free oil, metal fines and fine particles from cutting fluids, coolants and emulsions. Oil skimmers, magnetic filters and oil separators can be combined to extend fluid service life and reduce fluid-change and waste-disposal costs.
Key Advantages of FRIESS Coolant and KSS Filtration Systems
- No consumable filter media
- Robust and durable equipment
- Low maintenance and easy operation
FRIESS supplies robust KSS treatment systems as central installations or mobile decentralized units. Modular bypass or full-flow filtration can be combined into multi-stage treatment according to the contamination.
More Than 50 Years of FRIESS Process-Fluid Cleaning Experience | Made in Germany
FRIESS purification modules can be integrated flexibly into existing KSS systems. Whether mobile or stationary, they fit smoothly into production processes and help optimize operating costs, maintenance effort and process stability.
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Different separation technologies provide thorough coolant cleaning and effective regeneration. This helps protect the environment while reducing operating costs.
FRIESS Equipment Made in Germany: Robust, Durable, Easy to Operate and Low-Maintenance
Separates floating oil, removes particles and circulates coolant for purification. Its compact design is ideal for servicing multiple machine tools.
Separates floating oil, removes particles and circulates coolant for purification. Its modular configuration suits higher treatment demands.
Integrates FRIESS 1U oil-skimming technology to continuously discharge separated floating oil.
Removes iron, steel and other magnetizable particles from process fluids without filter media.
Designed for small emulsion and degreasing tanks, with continuous surface-oil removal.
Application Examples
Section 01 | Value, Cost and Machining Quality
Reduce waste-fluid volume and disposal costs
Continuous coolant purification reduces three major cost drivers at once: waste-fluid disposal, fresh-fluid purchasing and contamination-related machining defects, improving both fluid economy and process stability.
Reduce waste-fluid volume and disposal costs
Continuous purification and regeneration extend sump-fluid service life, reducing complete fluid changes, transport and disposal volumes.
Fewer changes · Less disposal
Lower fresh-fluid purchasing costs
Extend coolant service life, reduce top-ups and complete fluid replacement, and lower long-term consumable and resource costs.
Longer fluid life
Reduce contamination-related machining defects
Continuously remove metal fines and small particles to reduce bore deviations and surface scratches while stabilizing machining accuracy and finished-part quality.
Stable machining quality
Lower fresh-fluid purchasing costs
KSS filtration systems reduce waste-fluid disposal costs and extend coolant service life, lowering fresh-fluid top-up and purchasing costs.
Stable, efficient purification combines economic operation with better resource use and helps reduce the environmental burden of production.
Avoid contamination-related machining defects
Continuously removing metal fines and other contaminants reduces the risk of costly machining defects such as bore deviations and surface scratches.
Clean, stable coolant helps maintain machining accuracy and improve finished-part quality.
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Section 02 | System Advantages: Easy Operation, Low Maintenance and Durability
FRIESS filtration and separation modules can be combined according to the contaminants present, removing tramp oil, metal particles, mineral contamination and sediment. Most treatment processes operate without filter cloth or other consumables.
Reduce lifecycle costs
Extend fluid life and reduce fresh-fluid purchasing, complete fluid changes and waste-disposal costs.
Lower total operating costs
Reduce machining defects
Continuously control contamination to reduce machining defects, rework and scrap.
Stable machining results
Reduce unplanned downtime
Reduce complete fluid-change frequency and unexpected downtime caused by sump maintenance.
Higher equipment availability
Maintain part accuracy
Clean, stable KSS helps maintain workpiece quality and machining accuracy.
Stable process capability
Reduce component wear
Reduce particle-related wear on tools, pumps, valves and system components.
Longer component life
Robust and low-maintenance
FRIESS uses durable, consumable-free or low-consumable purification technologies with minimal routine maintenance.
Lower maintenance effort
KSS 过滤系统的优势概览
- 延长槽液寿命，减少新液采购和废液处置成本。
- 降低污染引发加工缺陷和废品的风险。
- 减少集中换液造成的计划外停机。
- 保持稳定的工件质量和加工精度。
- 洁净 KSS 可减轻刀具、泵和设备部件磨损。
- FRIESS 提供坚固耐用、低维护的无耗材净化技术。
Section 03 | Manufacturing Experience and On-Site Support
FRIESS GmbH has more than 50 years of experience in coolant maintenance and process-fluid purification. Mobile, decentralized and central treatment modules are available for floating oil, tramp oil, metal particles and other contaminants.
More than 50 years of process-fluid purification experience
Decades of application experience cover mobile, decentralized and central KSS treatment systems.
Proven application experience
Made in Germany, robust and durable
Durable materials, reliable construction and consumable-free or low-consumable technologies reduce long-term maintenance costs.
Built for long-term operation
Professional selection for your operating conditions
We combine contaminant type, flow rate and site conditions to provide a tailored solution and professional consultation.
From problem to solution
选择 FRIESS 的理由
- 作为制造商，我们为您提供优异的性价比。
- 针对您的具体问题，提供个性化解决方案。
- 提供免费的专业咨询。
Section 04 | System Selection and Purification Modules
A KSS filtration system must be designed around the on-site flow rate, fluid properties, contaminant types and target cleanliness. Accurate information about fluid condition, contamination sources, treatment flow and installation conditions is essential for optimum purification.
Oil skimmer
Continuously removes tramp oil and other low-density liquid contaminants floating on the surface.
Continuous surface-oil removal
Magnetic filter
Captures magnetizable metal particles entering the KSS during machining without filter media.
No filter media
Oil-water separator
Separates free oil from emulsions and removes part of the settled sludge and solid particles.
Multi-stage separation
KSS 净化模块｜FRIESS 成熟可靠的再生处理技术
获得理想净化效果的关键，是准确了解现场工况。FRIESS 可在调查槽液状态、污染来源、处理流量和安装条件后，完成方案规划、设备配置、安装与调试。
撇油机、磁性过滤器和油水分离机既可作为独立模块接入现有系统，也可组合成完整处理方案，从而兼顾净化效率、运行稳定性和经济性。
FRIESS 工艺液净化模块
撇油机（Oil Skimmer）
连续去除漂浮在液面上的外来油和其他轻质液体污染物。
磁性过滤器（Magnetic Filter）
无需滤材，捕集加工过程中进入 KSS 的可磁化金属颗粒。
油水分离机（Oil Separator）
分离乳化液中的游离油，并去除部分沉降污泥和固体颗粒。
Section 05 | Mobile Purification and Condition Assessment
Mobile coolant purification provides greater flexibility when several machine tools require periodic treatment or when a fixed unit at every tank is impractical. One unit can be moved between operating locations according to schedule.
Mobile coolant purification
The unit can be moved between machine tools and tanks as scheduled, making it suitable for multiple machines, distributed production areas and sites where fixed systems are impractical.
One unit serves multiple tanksLearn about purification and regeneration →
Coolant testing and condition assessment
Standardized sampling, measurement and documentation determine whether KSS cleanliness, concentration and operating condition meet production requirements.
Use data to schedule maintenanceLearn about testing and assessment →
冷却润滑液净化与再生
了解冷却润滑液净化、污染物分离和槽液再生时需要关注的关键事项。
冷却润滑液检测与状态评估
Section 06 | Frequently Asked Questions: KSS Purification, Testing and Maintenance
冷却润滑液中常见哪些污染物？
There is no single universal machine for coolant maintenance. First identify the contaminants, contamination load and target cleanliness, then select the appropriate purification methods.
Which contaminants are commonly found in coolant?
Metalworking introduces metal fines and small particles into the sump, while machine-way oil and hydraulic oil create tramp-oil contamination.
Depending on the production environment, mineral, chemical or microbial contamination may also occur. Concentration, pH, contamination and microbiological condition should therefore be monitored continuously.
Where are coolants used?
Coolants are mainly used in metal cutting, grinding and other machining operations for cooling, lubrication, chip removal and corrosion protection.
Without effective cooling and lubrication, heat and friction accelerate tool and equipment wear and reduce surface quality and dimensional accuracy.
Why should coolant be purified continuously?
Metal particles, tramp oil and sediment accelerate tool and equipment wear, reduce workpiece quality and increase the risk of microbial growth and odors.
Continuous purification extends fluid life, reduces fresh-fluid purchases, fluid-change downtime and waste-disposal costs, and improves production stability.
Which equipment is required for coolant maintenance?
Select magnetic filtration, oil skimming, oil-water separation or mechanical prefiltration according to contaminant type, particle load, tank volume, treatment flow and target cleanliness.
When several contaminants are present, different modules can be combined in a bypass or full-flow purification system.
Equipment selection
Select purification technology by primary contaminant
First determine which contaminants must be removed, then consider treatment flow, installation space and operating mode. The following guide provides an initial selection basis.
Magnetic filter
Uses a high-intensity magnetic field to capture iron, steel and other magnetizable particles without filter cloth; suitable for mobile or stationary bypass and full-flow filtration.
Oil skimmer
Continuously removes light liquid contaminants floating on the surface; tubular oil skimmers can accommodate a certain range of liquid-level fluctuations.
Oil-water separator
Suitable for bypass circulation to separate free oil, with settling and coalescence stages that can also remove part of the solid contamination.
Filter cloth / mechanical prefiltration
Captures larger solid particles by pore size and is suitable for prefiltration; it cannot effectively remove floating oil, and used filter cloth must be replaced and disposed of.
Suitable as coarse prefiltration, but not as a substitute for dedicated oil removal or magnetic filtration.
冷却润滑液用于哪些加工场景？
冷却润滑液主要用于金属切削、磨削及其他加工过程，承担冷却、润滑、冲屑和防锈等作用。如果缺少有效冷却和润滑，热量与摩擦会加速刀具和设备磨损，并降低工件表面质量与尺寸精度。
为什么需要持续净化冷却润滑液？
金属颗粒、外来油和沉积物会加速刀具与设备磨损，降低工件质量，并增加微生物繁殖和异味风险。
持续净化能够延长槽液寿命，减少新液采购、换液停机和废液处置成本，同时改善生产稳定性。
维护冷却润滑液需要哪些设备？
冷却润滑液维护没有单一通用设备。应根据污染物类型、颗粒负荷、槽液体积和目标洁净度，选择磁性过滤、撇油、油水分离或机械预过滤等处理方式。
磁性过滤
刀具和工件产生的铁、钢等磨屑通常具有磁性。传统滤布或过滤袋只能拦截高于其过滤精度的颗粒；高强度磁性过滤器则可在磁场捕集能力范围内去除更细微的可磁化颗粒，而且无需使用滤布等耗材。
磁性过滤器可集成到现有系统中，作为移动式或固定式设备用于旁路过滤或全流过滤；具体配置应结合流量、颗粒性质和目标洁净度确定。
撇油机
当外来油等污染物密度低于冷却润滑液并漂浮在液面上时，适合采用撇油机连续去除。管式撇油机能够自动适应一定范围内的液位波动，既适用于单机槽，也可用于较大的中央处理系统。
过滤布
滤布依靠孔径进行机械拦截，只能去除高于相应过滤精度的固体颗粒，无法按污染物种类进行选择性分离，也不能有效去除浮油等轻质液体。
滤布属于消耗品，使用后需要更换和处置，通常更适合作为预过滤。FRIESS 的磁性过滤、撇油和油水分离技术可减少对滤布等耗材的依赖。
In addition to reducing operating costs, FRIESS oil skimmers、electrostatic oil cleaners、magnetic filters、coolant purification systems、oil-water separators and vacuum oil dehydrators help extend process-fluid life, reduce equipment wear and improve production stability.
Contact us for a purification solution tailored to your operating conditions.
