Xuchang Chengrui Insulation Materials Co., Ltd.
Henan Province, China
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Leading Manufacturer & Exporters of different types insulation paper, such as electrical insulation paper,transformer insulation paper, motor insulation paper, motor insulation paper, dmd insulation, cable insulation paper, laminated presspaper, diamond dotted paper, crepe paper insulation, electrical insulation board, etc. They are most used for making insulators, electrical winding insulation, winding wire coating insulation, electrical base, shell, motor, switch baseplate, etc. All the electrical insulation materials can be customized according to your need.
Cable Insulation Paper Product Details:
Electrical grade insulating kraft paper or electrical cable paper is manufactured from 100% high-quality sulfate insulating wood pulp without sizing or used fillers. This paper is highly refined and cleaned to ensure uniform thickness and formation. It is widely used as electrical insulation wrap on aluminum and copper wires by conductor manufacturers, electrical insulation between layers of wound coils in electrical motors, in capacitors, transformers & such other electrical equipment.
Additional Information
Type: Insulation Paper
Thickness: 0.05mm, 0.055mm, 0.06mm, 0.08mm, 0.1mm, 0.13mm, 0.15mm
Width:625mm, 960mm
Color: Natural Brown
Maximum Voltage: 50KV
Application: Insulators, Electrical Winding Insulation, Electrical Base, Shell, Motor, Insulating Varnish
Crepe Paper Insulation Product Details:
Insulation Crepe Paper is one of the electrical insulation paper. It is made of 100% superior sulfate insulating wood pulp. It has good dielectric strength, excellent compatibility with insulating liquids (mineral oils, silicone oils, and acerola oils), and free from conductive particles. Electrical grade insulation papers are suitable for irregular shapes and surfaces where normal insulation materials fail to reach, used in magnet wire, layer, current transformers, RIP bushings, or as shielding material
Additional Information
Type: Insulation Paper
Thickness: 0.35mm-0.9mm
Width: 25mm-960mm, or customized
Color: Natural brown
Insulation Class: A (105°C)
Application: electrical transformer as transformer layers
Diamond Dotted Paper Product Details:
Diamond dotted insulation paper or epoxy diamond dotted paper is made of electrical insulating paper coated with heat-curable epoxy resin, the epoxy adhesive is applied to both sides of the paper in a diamond pattern consisting of 9.5mm x 9.5mm diamonds with 15.9mm center spacing.
Additional Information
Type: Insulation Paper
Thickness: 0.08mm, 0.13mm, 0.15mm, 0.17mm, 0.20mm, 0.25mm
Width: 960mm, 1000mm
Color: Natural
Insulation class: B (130 °C)
Application: Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Switch Baseplate
Insulation Pressboard Product Details:
Insulation pressboard or electrical insulation board or laminated insulation board is a special insulation product based on pure cellulose taken from long-fibred coniferous wood. This is structured into a fibrous tissue without additional adhesive and then pressed. Due to its high chemical purity, the insulation pressboard is excellently suited as an insulation material in electric machines, capacitors, and oil-filled transformers. It is a widely used insulation paper.
Additional Information
Type: Insulation Paper
Thickness: 0.8-30mm
Size: 1000mmX2000mm 1000x1000mm
Color: Natural brown, red
Insulation class: A (105 ℃)
Application: transformator Insulators, Electrical Base, Insulating Varnish
Insulation Pressboard Product Details:
Insulation pressboard or electrical insulation board or laminated insulation board is a special insulation product based on pure cellulose taken from long-fibred coniferous wood. This is structured into a fibrous tissue without additional adhesive and then pressed. Due to its high chemical purity, the insulation pressboard is excellently suited as an insulation material in electric machines, capacitors, and oil-filled transformers. It is a widely used insulation paper.
Additional Information
Type: Insulation Paper
Thickness: 0.1-0.5mm
Width: 1000mm
Color: Natural brown, blue, dark green
Insulation class: A (105 ℃)
Application: Insulators, Electrical Winding Insulation, Electrical Base, Shell, Motor, Insulating Varnish
What makes our electrical insulating crepe paper stand out? It's the meticulous balance of durability and flexibility. Whether your clients need thin electrical insulation paper sheets for precision applications or thicker variants for heavy-duty use, we customize dimensions to their exact specifications. The thermal resistance built into every roll prevents breakdowns even in high-heat environments, while our moisture-repellent formula ensures longevity in humid climates. When you source electrical insulation paper wholesale from us, you're not just getting materials – you're getting consistency that strengthens your reputation as a supplier.
Chengrui Elecrical Insulation Paper Benefits
When your customers demand electrical insulation paper that won’t fail under pressure, Chengrui delivers. As a leading electrical insulation factory in China, we specialize in high-performance materials like fish paper electrical insulation and transformer insulation paper – all engineered to keep electrical systems safer and more efficient.
We know importers need more than just products – you need a partner who understands logistics. Chengrui pre-packages orders to your specifications (rolls, sheets, or custom cuts) with moisture-proof wrapping for overseas shipping. Let’s discuss how our electrical insulation paper can become your competitive edge in the global market.
Your customers trust you to supply electrical insulation paper that performs where it matters most. At Chengrui, we engineer our materials for real-world industrial challenges – whether it's transformer insulation needing superior dielectric strength or motor windings requiring heat-resistant electrical insulating crepe paper.
Think about the heavy-duty applications your clients handle daily. Our electrical insulation paper sheets prevent arc flashes in switchgears, while the fish paper variant offers unmatched flexibility for wrapping irregular components. For transformer manufacturers, our oil-impregnated papers maintain stability even during power surges. When you source electrical insulation paper wholesale from us, you're not just buying materials – you're getting solutions that reduce equipment failures and maintenance costs for your end-users.
As experienced electrical insulation paper manufacturers, we understand importers need more than specs – you need reliability. That's why Chengrui pre-tests every batch for thickness consistency and thermal endurance before shipment. Whether you supply electrical insulation paper sheets to appliance factories or insulating crepe paper to motor repair shops, we customize packaging (rolls, pre-cut sheets) to minimize your handling costs. Let's discuss how our application expertise can strengthen your supply chain.
When your business depends on reliable electrical insulation paper, you need more than just a supplier - you need a partner who understands quality matters at every volt. That's why global importers trust Chengrui as their electrical insulation paper manufacturers of choice.
Our transformer insulation paper isn't just dielectric-tested - it's engineered to prevent partial discharges that could ruin expensive equipment. The insulation paper for motor winding we produce withstands 30% higher temperature spikes than industry standards, giving your customers fewer warranty headaches. As an electrical insulation factory with decade-deep expertise, we've optimized everything from fiber blending to creping processes so you get consistent performance in every electrical insulation paper sheet.
What really sets us apart? We treat your supply chain like our own. When you order electrical insulation paper wholesale from Chengrui, you get:
• Pre-shipment test reports with every batch
• Customizable packaging (rolls, sheets, or die-cuts)
• Container-load optimization to cut your logistics costs
• Technical support for your customers' toughest applicationsWhether you're supplying power plants needing heavy-duty transformer insulation paper or workshops requiring versatile electrical insulating crepe paper, we've got your back. Let's discuss how Chengrui can become your competitive advantage in the electrical insulation paper suppliers market.
Selecting the right electrical insulation paper requires balancing technical specifications with real-world operating conditions. Start by identifying your equipment's voltage class - materials rated for low-voltage applications (below 1kV) differ significantly from those designed for medium/high-voltage systems. The paper's dielectric strength should exceed your maximum operating voltage by at least 25% to account for power surges.
Consider thermal demands next. Standard kraft papers typically handle 105°C, while Nomex-based materials withstand 220°C continuous heat. For motor winding applications, crepe paper's stretchability helps accommodate coil expansion during temperature fluctuations. Transformer insulation paper must maintain stability when impregnated with oil or resin - ask suppliers for compatibility test reports.
Physical properties matter too. Thinner papers (0.05-0.1mm) work for compact devices but sacrifice mechanical strength. Evaluate tensile strength if the material will undergo vibration or bending. Environmental factors like humidity or chemical exposure may require special treatments - fish paper's vulcanized fiber construction resists moisture better than standard cellulose.
Always verify certifications. UL-recognized or IEC standards compliance (like IEC 60554) indicates third-party verified performance. Request samples to test:
1. How easily the material conforms to irregular shapes
2. Edge tear resistance during cutting/installation
3. Adhesive compatibility if laminating
Finally, assess supplier reliability. Established electrical insulation paper manufacturers should provide detailed technical datasheets, not just marketing claims. Ask about lead times - some specialty papers require custom production runs. Remember, the cheapest option often costs more long-term through increased failures or shorter service life.
You know how crucial reliable electrical insulation paper is for your customers' projects – that's where Chengrui steps in. As one of China's trusted electrical insulation paper manufacturers, we supply importers like you with premium-grade materials that keep transformers, motors, and electrical components running safely. Our electrical insulation paper sheets withstand voltage fluctuations without compromising performance, giving your buyers confidence in every shipment.
We understand you need electrical insulation paper suppliers who won't let you down. That's why Chengrui backs every order with strict quality control and timely logistics support. Partner with us, and let's electrify your supply chain with insulation solutions that perform as hard as your business does.
Finding dependable electrical insulation paper manufacturers shouldn't feel like walking through a minefield. At Chengrui's electrical insulation factory, we've been crafting precision insulation materials the old-fashioned way - through rigorous quality control and hands-on expertise. Our electrical insulation paper sheets undergo more quality checks than industry standards require because we know equipment failures often trace back to inconsistent materials.
What separates us from typical electrical insulation paper suppliers? It's our obsessive attention to real-world performance. Our electrical insulating crepe paper maintains its flexibility even after years of thermal cycling - a critical factor for motor rewinding shops. The transformer-grade papers we produce demonstrate stable dielectric properties whether used in dry-type systems or oil-filled applications. These aren't marketing claims; they're verifiable results from our on-site testing lab.
For electrical insulation paper wholesale buyers, we offer more than just products. You get technical support to help specify the right materials for unusual applications. Our production team can accommodate special sizes or custom-converted shapes without minimum order headaches. Most importantly, we stand behind every shipment with complete traceability - you'll know exactly which production run supplied any given batch.
In an industry where quality variations can mean costly downtime, Chengrui delivers the consistency that keeps your customers coming back. Whether you're supplying industrial maintenance shops or OEM manufacturers, our papers become your competitive advantage.
