What is the maximum voltage rating?

The maximum voltage rating is less than 10KV.

Where is the manufacturer located?

The manufacturer is located in Xuchang City, Henan Province, China.

Transformer Electrical Insulating Materials DDP Diamond Dotted Paper Insulation Paper

Name: Transformer Electrical Insulating Materials DDP Diamond Dotted Paper Insulation Paper
Brand: Xuchang Rainyan Insulation Material Co., Ltd.
SKU: 2096502092

Henan, ChinaXuchang Rainyan Insulation Material Co., Ltd.

US$1.80-2.80

500 kg

Product profile

Customization

Available

Application

Capacitor, Generator, Inductor, Motor, Transformer

Color

Brown

Model NO.

DDP

Material

Kraft Paper

Maximum Voltage

<10KV

Thermal Rating

F 155

Thickness

0.13mm*0.35mm

Width

1000mm

Type

Insulation Paper

Chemistry

Organic Insulation

Classification

Organic Insulating Material

Certification

ISO9001

Brand

Rainyan

Transport Package

Pallet

Specification

0.05-0.35mm

Trademark

Origin

China

Production Capacity

5000000t

Key features

UL Approved Insulation System: Insulation system certified by UL (NO.: E310670) and passed ROHS test for safety.

Customizable Dimensions: Width available in multiple options: 625mm, 800mm, 960mm, 1020mm, 1100mm, 1200mm.

High Dielectric Strength: Breakdown voltage in oil reaches up to 11.50 KV for 0.50mm thickness.

Professional Manufacturer: 20 years experience with 105 staff and advanced manufacturing techniques.

Wide Application Range: Suitable for capacitors, generators, inductors, motors, and transformers.

Durable Mechanical Properties: Good dielectric and mechanical properties after heat solidification.

Global Export Experience: Exported to UK, Germany, France, Ukraine, Italy, India, and other countries.

Low Oil Pollution: Ensures no pollution for transformer oil during operation.

Company profile

Xuchang Rainyan Insulation Material Co., Ltd.

Henan, China

Business Type: Manufacturer/FactoryExport Year: 2001-02-01Nearest Port: qingdao, shanghai, tianjinAverage Response Time: ≤18hTerms of Payment: LC, PayPal, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, FCA

AI-Powered supplier vetting

SummaryXuchang Rainyan Insulation Material Co., Ltd. is identified as a Chinese manufacturer/factory producing electrical insulation materials and related products. It reports ISO 9001 and QC 080000 certifications, broad export coverage, and customization based on customer samples. However, the evidence indicates limited R&D and service infrastructure: no ODM, 3D design, SDK, recent product development, written complaint-handling or corrective-action procedures, warehouse control process, or quality assurance system. Quality-control resources are reported inconsistently, with one inspection staff member and no test equipment in one slice, while another reports 11–20 quality-control staff. Financial records are referenced for 2021–2023, but no financial figures or substantive performance evidence are provided. No customer names, case studies, or verified brand-OEM experience are disclosed.

Supplier typeThe supplier is explicitly identified as a manufacturer/factory and limited company based in Henan, China. Its stated product scope covers polyester film, polyimide tape, pressboard, insulation paper, laminated sheet, and other insulation-related products, while the company description links its products to transformers and electrical motors.

CertificationsThe supplier reports holding ISO 9001 and QC 080000 certifications. The slices identify the certifications but do not provide certificate numbers, validity dates, scope, or independent verification.

After-Sales capabilityThe supplier states that it offers warm-hearted service, but it explicitly reports no written procedures or records for customer complaints and no written corrective and preventive action procedures or records. This demonstrates a documented service-process deficiency.

R&D capabilityThe supplier reports no professional technical R&D capability, no 3D software design, no ODM service, no SDK, and no new products in the past year. Although sample provision is described as an R&D engineer responsibility, the overall evidence shows explicit limitations in innovation and formal R&D capability.

Production capacityThe supplier reports annual production information of 3,240 laminated sheets and 50,000 tons, exports to multiple global regions, and has operated as an exporter for five years. However, quality-control infrastructure appears weak or inconsistent: one slice reports one inspection staff member and zero testing equipment, while another reports 11–20 quality-control staff; finished products are checked by packing staff.

Customization capabilityThe supplier explicitly offers customization from samples and states that its R&D engineer provides samples according to customer requirements. No evidence is provided for broader engineering design, 3D design, ODM, or SDK-based customization, so the demonstrated capability is limited to sample-based customization.