Brown Color Insulation Cloth Bakelite Phenolic Cotton Rod/Bar 3723
| US$2.30 | 500 kg (MOQ) |
Xuchang Chengrui Insulation Material Co., Ltd.
Henan, China
Last Login Date:
Jul 29, 2025
Main Products:
Electrical Insulation Paper, Polyester Film, Fiberglass Sleeving, Insulation Material, Nmn Nomex Paper, Pressboard Presspaper, Insulation Paper, Insulation Board, Insulation Sheet, Fiberglass Tape
Product Description
Company Info
Basic Info.
Product Description
3723 Phenolic cotton cloth laminated rod is made of cotton cloth by roasting and hot pressing in a forming mold. The rod of which the section round has good mechanical property and machinability. Heat-resisting grade: E. It applies as parts of the insulating structure to the electrical equipments and usable in the transformer oil.
Type: Insulation Rod
Diameter: 8-200mm
Length: 1000mm,1030mm, 980mm
Color: Brown or Black
Insulation class: class E (120ºC)
1. Good electric properties
2. Good mechanical properties
3. Strong wear-resistant property
Widely used as insulating structural components with certain mechanical properties and electric properties on the machine, also for motor and electric appliances as well as oil submerge transformer.
3723 Phenolic Cotton Cloth Bar Specifications
| NEMA Grade | C, CE |
| Color | Black, Tan, Brown, Orange |
| Thickness | 8mm ~ 220mm |
| Dimensions | Custom |
| Vertical Bending Strength | ≥120 MPa |
| Dielectric Loss Factor 1MHz | ≤0.05 Tg8 |
| Grain Strength | ≥3200 N |
| Vertical Breakdown Voltage | 8.4-15.7 Kv/mm |
| Parallel Breakdown Voltage | ≥20 KV |
| Parallel Layer Insulation Resistance | Dry ≥1.0x109 Ω |
| Wet ≥1.0x107 Ω | |
| Water Suction Volume | 165-1380 ml |
| Temperature Class | Depends on Grade |
Phenolic Cotton Cloth Laminated rod
| Properties | Grade | ||||||
| insulation bakelite rod | |||||||
| Properties | Units | 3723 | 3724 | 3725 | 3726 | ||
| Density | Dia(mm) | g/cm3 | 1.25-1.40 | 1.25-1.40 | 1.25-1.40 | 1.25-1.40 | |
| Water absorption rate (D-24/23) | ≤ | 6 | % | 1.7 | 1 | 1.2 | 1 |
| 13 | 1.3 | (Φ13mm) | (Φ13mm) | (Φ13mm) | |||
| 25 | 1 | ||||||
| > | 25~51 | 1.2 | |||||
| Flexural strength | ≥ | MPa | 90 | 95 | 110 | 95 | |
| Tensile strengh | ≥ | MPa | 78 | \ | \ | \ | |
| Compression strength (Axial) | ≥ | MPa | 138 | 138 | 138 | 138 | |
| Insulation resistance parallel to laminations | \ | \ | \ | ||||
| A: Under normal condition | ≥ | W | 1.0×108 | ||||
| D-24/23: Immersion in water | ≥ | W | \ | \ | \ | \ | |
| Breakdown voltage parallel to laminations (in transformer oil) | ≥ | KV | 10 | 10 | 10 | 10 | |
| (20±5°C) | (20±5°C) | (20±5°C) | (20±5°C) | ||||
| Flammability | - | - | - | - | - | ||
| Color | - | Natural | Natural | Natural | Natural | ||
| Reference standard | - | Enterprise Standard | |||||
