Chengrui Insulation Paper Empowers Indonesian Manufacturer

For seven years, Adi Pratama’s factory in North Jakarta had been battling a recurring nightmare: transformers returned from clients with charred insulation paper, their copper coils warped from overheating. As the founder of PT Elektro Maju Sejahtera, a mid-sized supplier of electrical components to Indonesia’s mining and construction sectors, Adi knew his company’s survival hinged on solving this issue. Local suppliers in Surabaya and Bandung had promised "premium-grade" materials, but their inconsistent thickness tolerances (±0.15mm) caused erratic performance in tropical climates.

The breaking point came in Q3 2024 when a major client in Kalimantan canceled a $220,000 order after three consecutive batches failed thermal endurance tests. Desperate, Adi reached out to his college friend Rizal, who managed a motor assembly plant in Semarang. Over bitter Javanese coffee, Rizal recounted how switching to a Chinese supplier had reduced his own defect rates by 40%. "They don’t just sell paper—they engineer solutions," Rizal emphasized, sliding a crumpled business card across the table: Chengrui Technical Sales Team, Henan.

Initial skepticism gave way to cautious optimism when Chengrui’ engineers requested humidity data from Adi’s production floor. Unlike previous vendors who treated insulation paper as a commodity, Chengrui tailored their recommendation to Jakarta’s 85% average humidity. The sample batch arrived with IEC 60641-3 and ASTM D619 test reports, but what convinced Adi was the hands-on verification: after 72 hours in PT Elektro’s simulated 50°C/95% RH chamber, the 0.25mm cellulose-based sheets maintained dielectric strength above 12kV/mm—well above the 8kV/mm industry norm.

Price negotiations revealed another advantage. While Indonesian distributors charged for "imported European quality," Chengrui’ CFR Jakarta rate included customized die-cutting for PT Elektro’s legacy German presses. The clincher was the staggered payment terms allowing Adi to preserve cash flow during his plant’s lean season—a flexibility unheard of with regional suppliers.

Eight months post-implementation, PT Elektro’s production metrics tell the success: scrap rates down from 9% to 2.3%, warranty claims reduced by 68%, and a landmark contract secured to supply substation components for Indonesia’s new capital city project. During a recent industry roundtable, Adi summarized his experience: "Chengrui didn’t just fix our insulation problem—they helped us rediscover what 'quality' really means."

This case reflects Chengrui commitment to bridging technical expertise with cultural pragmatism. By prioritizing on-site diagnostics over generic catalogs and embedding local logistics support, the company continues reshaping how Indonesian manufacturers perceive cross-border partnerships.

About Chengrui

we supply insulation solutions tailored to your toughest challenges. Our electrical insulation materials and polyimide films withstand extreme temperatures (-269°C to 260°C) and humidity (up to 95% RH), validated by IEC 60641-3 and ASTM D619 testing.

Unlike generic suppliers, we optimize thickness tolerances (±0.05mm) for your equipment and climate, reducing thermal failures by 68%. With UL94 5VA-certified flame resistance and halogen-free materials, we prioritize safety and sustainability. Flexible CFR pricing, localized logistics, and staggered payments ensure cost efficiency without compromising on dielectric strength (12kV/mm+). Trust Chengrui to improve your insulation business with expert support and affordable cost.