What is the packaging method?

We provide robust packaging based on product type. Sheets use wooden crates or pallets with foam or corrugated paper between sheets. Rolls use sturdy wooden cores and waterproof wrapping. All packages are clearly marked.

How can I get a sample?

We are pleased to send free samples. You can send your delivery address by email or message, and we will send the sample at the first time.

IEC 60641-3-1 Type B. 3.1 High Density Transformer Insulation Paperboard Pressboard

Name: IEC 60641-3-1 Type B. 3.1 High Density Transformer Insulation Paperboard Pressboard
Brand: Numbo One Industrial Co., Limited
SKU: 1986737741

Jiangsu, ChinaNumbo One Industrial Co., Limited

US$1.50

100-499 kg

US$1.48

500-999 kg

US$1.46

1,000+ kg

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Application

Capacitor, Generator, Inductor, Insulation Sleeving, Motor, Transformer

Color

Brown

Model NO.

DFTPRESSBOARD

Material

Kraft Paper

Maximum Voltage

10KV~20KV

Thermal Rating

A 105

Thickness

0.6-50mm

Temperature

High Temperature Resistance

Usage

High Temperature Resistance and Wrapping

Delivery

10-15days

Feature

Insulation

Transport Package

Pallet / Carton

Specification

Customized

Trademark

LBW

Origin

Jiangsu

HS Code

48115990

Production Capacity

25000kg/Month

Key features

High Electrical Strength: Dielectric breakdown voltage up to 35kV/mm ensures safe operation in high-voltage environments.

High Chemical Purity: 100% pure unbleached softwood sulphate cellulose, free from impurities and metal particles.

Customizable Thickness: Available in various thicknesses from 0.5mm to 80mm with tight tolerances.

Standard Compliance: Compliant with IEC 60641-3-1 (Type B.3.1) and IEC 60763 international standards.

Oil Compatibility: Excellent compatibility with transformer oil and high oil absorption rates.

Company profile

Numbo One Industrial Co., LimitedJiangsu, China

Business Type: Manufacturer/FactoryExport Year: 2014-07-01Nearest Port: ShanghaiAverage Response Time: ≤6.67hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): EXW, FOB, FCA, CIF, DAT, DDP, DAP

About Our Factory & Business Background

Address9 Huishan Avenue, Huishan, Wuxi, Jiangsu, China

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsInsulating Rods, Epoxy Rod, Insulating Paper, Presspaper Board, Phenolic Cotton Sheet, Fiberglass Cloth

Our Industry Experience & Global Business Record

Main MarketsNorth America, Mid East, South America, Eastern Asia

Product Q&A

Q:What is the most fundamental difference between 3021 and 3025?

3021 (phenolic paperboard) is for high-volume, low-voltage stamping of uniformly shaped parts where cost sensitivity is key. 3025 (phenolic resin fabric board) is for mechanical parts like gears and bearings that need to withstand impact, friction, or vibration.

Q:Are these materials classified as dangerous goods for export?

No, they are not classified as dangerous goods and can be transported as ordinary cargo.

Q:What are the payment terms?

We typically use Telegraphic Transfer (T/T), such as 30% deposit and 70% balance against the copy of the Bill of Lading. More flexible terms can be discussed for long-term partners.

Q:What is the Minimum Order Quantity (MOQ)?

We offer a flexible MOQ policy. For standard products, the MOQ can be very low. For custom sizes and thicknesses, the MOQ will be higher accordingly.

Q:What is the lead time?

For standard and in-stock items, shipment is typically within 7-15 working days. For custom products, the lead time is approximately 15-30 working days, depending on order complexity.