{"id":7941,"date":"2026-06-03T16:06:17","date_gmt":"2026-06-03T07:06:17","guid":{"rendered":"https:\/\/test-ftcj.test-site01.site\/case\/lib-separator\/"},"modified":"2026-06-30T13:12:34","modified_gmt":"2026-06-30T04:12:34","slug":"lib-separator","status":"publish","type":"case","link":"https:\/\/test-ftcj.test-site01.site\/en\/case\/lib-separator\/","title":{"rendered":"Accelerating LIB Separator Air Permeability Measurement | Improving Quality Control Efficiency Through Coordination Across Oken-Type Air Permeability Testers \u00d7 China Bases\u30fbOverseas Distributors"},"content":{"rendered":"\n

For customers whose LIB separator film air permeability measurement was bottlenecking line capacity, we proposed the Oken-type air permeability tester<\/a>. Through coordination between our Shanghai base<\/a> and overseas distributors, we provided everything from equipment installation to local maintenance and calibration on a one-stop basis, significantly improving quality control efficiency.<\/p>\n\n\n\n

The “Air Permeability Measurement Bottleneck” Issue Occurring at LIB Separator Production Sites<\/h2>\n\n\n\n

Regarding LIB separator film air permeability measurement, there is a desire to simultaneously improve measurement speed and accuracy. In existing lines, quality control is a bottleneck.
With existing testing machines, the measurement time is long, making total lot control difficult.
\u25cfContexts of Manifestation:<\/strong> Existing product improvement phase. Sophistication of quality control at China production bases.
\u25cfMain Impacts:<\/strong> Line capacity reduction, increased inspection costs, impacts on lead times and supply stability.<\/p>\n\n\n\n

Why Measurement Speed Fails to Increase: Processing Speed of Existing Testing Machines and Inspection Demands at the Site<\/h2>\n\n\n\n

Processing constraints (processing speed of existing testing machines).
\u25cfSpecific Rationale:<\/strong> Evaluation and comparison of existing testing equipment.<\/p>\n\n\n\n

Countermeasures Attempted Thus Far and Their Limitations<\/h2>\n\n\n\n

Increasing the frequency of sampling inspections (occurrence of oversights), reducing line speed (deterioration of productivity).
Based on these limitations, the following approach was adopted as a more drastic solution.<\/p>\n\n\n\n

Solution Approach: Installation of Oken-Type Air Permeability Testers \u00d7 Coordination Across Overseas Distributors \u00d7 Shanghai Base Installation Support<\/h2>\n\n\n\n
\n
\n
\n

STEP. 01<\/p>\n\n\n\n

Equipment Installation Proposal<\/h4>\n<\/div>\n\n\n\n

Selection of the Oken-Type Air Permeability Tester<\/a><\/p>\n<\/div><\/div>\n\n\n\n

\n
\n

STEP. 02<\/p>\n\n\n\n

Coordination with Overseas Distributors<\/h4>\n<\/div>\n\n\n\n

Arranging including local maintenance and calibration<\/p>\n<\/div><\/div>\n\n\n\n

\n
\n

STEP. 03<\/p>\n\n\n\n

Local Coordination<\/h4>\n<\/div>\n\n\n\n

Installation support at our Shanghai Base<\/a><\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

Fujichemi Trading’s Supply Framework: Shanghai Base \u00d7 Overseas Distributors \u00d7 Partner Manufacturers<\/h2>\n\n\n\n

This solution is established through the division of roles among multiple bases.
\u30fbShanghai Base<\/a>: Local customer contact\u30fbaccompanying the installation
\u30fbOverseas Distributors: Equipment arrangement\u30fbcalibration\u30fbmaintenance
\u30fbPartner Manufacturer (Kumagai Riki Kogyo Co., Ltd.): Equipment supply\u30fbtechnical data
\u25cfSupply Framework:<\/strong> Local installation support + maintenance and calibration network.<\/p>\n\n\n\n

Results from Installation<\/h2>\n\n\n\n

In addition to improving functions and performance, cost reduction was also achieved. Realized improvements in measurement speed and quality control efficiency.
\u25cfKPI Candidates:<\/strong> Measurement time reduction \/ inspection throughput improvement \/ inspection cost reduction.
\u25cfImplementation Lead Time:<\/strong> Iterative evaluation \u2192 gradual implementation.<\/p>\n\n\n\n

Expected Ripple Effects and Horizontal Rollout<\/h2>\n\n\n\n

The installation effects of this solution are not limited to solving the primary issue. Please also utilize this as material for internal proposals and proposals to management.
\u30fbRollout to air permeability measurement of high-functional films other than separators (electrolytic capacitors\u30fbfuel cells)
\u30fbEvolution into a “Battery Evaluation Lab” where Fujichemi comprehensively proposes evaluation equipment for all LIB processes (electrodes\u30fbseparators\u30fbassembly)
\u30fbGlobal horizontal rollout to EV\u30fbstorage battery, and separator film factories in China\u30fbKorea\u30fbSoutheast Asia, Europe and the Americas, etc.
\u30fbDifferentiation of the “Local Maintenance Network” rippling out to other evaluation machines<\/p>\n\n\n\n

Differences from Competitors: Why Fujichemi Trading is Chosen<\/h2>\n\n\n\n

In the import and sales of standalone equipment, local maintenance is a weak point. Fujichemi covers everything up to post-installation support through our “China Base + Overseas Distributors<\/a>.”<\/p>\n\n\n\n

Product Information and Spec Overview<\/h2>\n\n\n\n

The main specifications of our products with a proven track record can be selected from multiple grades depending on the application and required conditions. Typical specifications are as follows (please contact us for detailed specifications).<\/p>\n\n\n\n

Item<\/th>Content<\/th><\/tr><\/thead>
Primary Application<\/strong><\/strong><\/strong><\/td>Air permeability measurement of LIB separator films (Quality Control)<\/td><\/tr>
Measurement Method<\/strong><\/strong><\/strong><\/strong><\/td>Oken-type<\/td><\/tr>
Main Measurement Targets<\/strong><\/strong><\/strong><\/strong><\/td>LIB separator sheets\/films, paper, non-woven fabric, high-functional films<\/td><\/tr>
Features<\/strong><\/strong><\/strong><\/strong><\/td>Significant throughput improvement compared to conventional methods<\/td><\/tr>
Coordinating Bases<\/strong><\/strong><\/strong><\/td>Established a maintenance and calibration network via our Shanghai Base<\/a> + overseas distributors<\/td><\/tr>
Related Markets<\/strong><\/strong><\/strong><\/strong><\/td>EV\/storage batteries, separator film factories (China, Korea, Southeast Asia, Europe and the Americas)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Utilization Methods and Operational Examples<\/h2>\n\n\n\n

For actual operations, patterns such as the following are frequently adopted.
\u30fbEvaluation Phase: Requirement hearing \u2192 sample evaluation \u2192 finalizing specifications
\u30fbPre-Mass Production Preparation: Cross-base division of roles, specification unification\u30fblocal startup
\u30fbMass Production Phase: Ensuring short lead times and stable supply through our supply framework
\u30fbHorizontal Rollout: Supporting horizontal rollout to other bases and other projects<\/p>\n\n\n\n

\n

FAQ (Frequently Asked Questions)<\/h2>\n\n\n\n
\n
\n

Can it be used to measure films other than separators?<\/p>\n<\/div><\/div>\n\n\n\n

It is also applicable to the air permeability of high-functional films and electrolytic capacitors.<\/p>\n<\/div><\/div>\n\n\n\n

\n
\n

Can the maintenance network be used in regions other than China?<\/p>\n<\/div><\/div>\n\n\n\n

We are currently expanding our partnerships with overseas distributors, so applicable areas are open to consultation.<\/p>\n<\/div><\/div>\n\n\n\n

\n
\n

It can be introduced as a set with other LIB evaluation equipment.<\/p>\n<\/div><\/div>\n\n\n\n

Regarding evaluation equipment for all LIB processes, we can provide comprehensive proposals under our “Battery Evaluation Lab.”<\/p>\n<\/div><\/div>\n\n\n\n

\n
\n

Are support materials available in English and Chinese?<\/p>\n<\/div><\/div>\n\n\n\n

Materials supported in English and Chinese, as well as local support, can be provided.<\/p>\n<\/div><\/div>\n\n\n\n

\n
\n

Is evaluation using a demonstration machine possible?<\/p>\n<\/div><\/div>\n\n\n\n

It is possible depending on the project. We welcome consultations regarding demonstration machines and paid testing.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

Proposals by Related Applications and Issues<\/h2>\n\n\n\n

\u25a0High-Quality Punching of LIB\/Solid-State Battery Electrodes | Eliminating Burrs and Cracks with Nogami Giken Hand Punches<\/a>
\u25a0Stable Supply and Quality Improvement of Fluoropolymer Films (FEP\/PFA) | Providing Multiple Samples with Short Lead Times via In-House Slitting<\/a>
\u25a0BCP Multi-Sourcing of Ferrite Cores for Cable Noise Elimination | Equivalent Quality \u00d7 Stable Supply \u00d7 Cost Reduction<\/a><\/p>\n","protected":false},"featured_media":3895,"template":"","case_category":[344,217,199,244,345],"class_list":["post-7941","case","type-case","status-publish","has-post-thumbnail","hentry","case_category-lib","case_category-217","case_category-199","case_category--x-","case_category-345"],"acf":[],"yoast_head":"\nAccelerating LIB Separator Air Permeability Measurement | Improving Quality Control Efficiency Through Coordination Across Oken-Type Air Permeability Testers \u00d7 China Bases\u30fbOverseas Distributors | \u30d5\u30b8\u30b1\u30df\u30fb\u30c8\u30ec\u30fc\u30c7\u30a3\u30f3\u30b0\u682a\u5f0f\u4f1a\u793e<\/title>\n<meta name=\"description\" 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