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ODM Supplier China Electrical Insulating Composite Foil 6641 F Class DMD Insulation Paper

ODM Supplier China Electrical Insulating Composite Foil 6641 F Class DMD Insulation Paper

ODM Supplier China Electrical Insulating Composite Foil 6641 F Class DMD Insulation Paper Featured Image
  • ODM Supplier China Electrical Insulating Composite Foil 6641 F Class DMD Insulation Paper
  • ODM Supplier China Electrical Insulating Composite Foil 6641 F Class DMD Insulation Paper
  • ODM Supplier China Electrical Insulating Composite Foil 6641 F Class DMD Insulation Paper
  • ODM Supplier China Electrical Insulating Composite Foil 6641 F Class DMD Insulation Paper
  • ODM Supplier China Electrical Insulating Composite Foil 6641 F Class DMD Insulation Paper

short description:

6641 Polyester film/polyester non-woven flexible laminate (Class F DMD) is a three-layer flexible composite insulation paper made of high melting-point polyester film and excellent hot-rolling polyester non-woven fabric. Each side of the polyester film (M) is bounded by one layer of polyester non-woven fabric (D) with Class F adhesive. The thermal class is F class,  It is also called as  6641 F class DMD or Class F DMD insulation paper.


Product Detail

Product Tags

Reliable good quality and very good credit standing are our principles, which will help us at a top-ranking position. Adhering to your tenet of “quality 1st, purchaser supreme” for ODM Supplier China Electrical Insulating Composite Foil 6641 F Class DMD Insulation Paper, Prospects initially! Whatever you require, we should do our utmost that will help you. We warmly welcome clients from all over the planet to cooperate with us for mutual improvement.
Reliable good quality and very good credit standing are our principles, which will help us at a top-ranking position. Adhering to your tenet of “quality 1st, purchaser supreme” for China Insulation Paper, Insulation Materials, Our company has already had a lot of top factories and professional technology teams in China, offering the best products, techniques and services to worldwide customers. Honesty is our principle, professional operation is our work, service is our goal, and customers’ satisfaction is our future!

6641 Polyester film/polyester non-woven flexible laminate (Class F DMD) insulation paper is a three-layer flexible laminate made of high melting-point polyester film and excellent hot-rolling polyester non-woven fabric. Each side of the polyester film (M) is bounded by one layer of polyester non-woven fabric (D) with Class F adhesive.

DMD(1)
复合6641 F-DMD(6)(1)

Product Features

6641 F-class DMD flexible composite insulation paper has excellent thermal resistance, electrical, mechanical and impregnated properties.

Applications & Remarks

6641 F-class DMD insulation paper has such advantages: lower price, excellent flexibility, high mechanical & electrical properties, convenient application. It has also good compatibility with many kinds of impregnating varnish.

It is suitable for slot insulation, inter phase insulation and liner insulation in F-class electric motors.

According to customer’ request, we can  also produce such two-layer or five-layer flexible composite as  F-class DM, F-class DMDMD,etc.

Insulation for electric motor
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Supply Specifications

Nominal width：1000 mm.

Nominal weight: 50+/-5kg /Roll. 100+/-10kg/roll, 200+/-10kg/roll

The splices shall not be more than 3 in a roll.

Color: white, blue, pink or with D&F printed logo.

Technical Performances

The standard values for 6641 are shown in Table 1 and relevant typical values shown in Table 2.

Table 1: Standard  performance values for 6641 F-class DMD  insulation paper

No.          Properties Unit                                     Standard  performance values
1 Nominal thickness mm 0.15 0.18 0.2 0.23 0.25 0.3 0.35 0.4
2 Thickness tolerance mm ±0.020 ±0.025 ±0.030 ±0.030 ±0.030 ±0.035 ±0.040 ±0.045
3 Grammage (for reference) g/m2 155 195 230 250 270 350 410 480
4 Tensile strength MD Not folded N/10mm ≥80 ≥100 ≥120 ≥130 ≥150 ≥170 ≥200 ≥300
After folded ≥80 ≥90 ≥105 ≥115 ≥130 ≥150 ≥180 ≥220
TD Not folded ≥80 ≥90 ≥105 ≥115 ≥130 ≥150 ≥180 ≥200
After folded ≥70 ≥80 ≥95 ≥100 ≥120 ≥130 ≥160 ≥200
5 Elongation MD % ≥10 ≥5
TD ≥15 ≥5
6 Breakdown voltage Room temp. kV ≥7.0 ≥8.0 ≥9.0 ≥10.0 ≥11.0 ≥13.0 ≥15.0 ≥18.0
155℃+/-2℃ ≥6.0 ≥7.0 ≥8.0 ≥9.0 ≥10.0 ≥12.0 ≥14.0 ≥17.0
7 Bonding property at room temp － No delamination
8 Bonding property at 180℃+/-2℃, 10min － No delamination,no bubble,no adhesive flow
9 Bonding property when affected by damp － No  delamination
10 Temperature index － ≥155

Table 2: Typical performance values for 6641 F-class DMD  insulation paper

No. Properties Unit Typical performance values
1 Nominal thickness mm 0.15 0.18 0.2 0.23 0.25 0.3 0.35 0.4
2 Thickness tolerance mm 0.005 0.005 0.01 0.01 0.01 0.01 0.01 0.01
3 Grammage g/m2 138 182 207 208 274 326 426 449
4 Tensile strength MD Not folded N/10mm 103 137 151 156 207 244 324 353
After folded 100 133 151 160 209 243 313 349
TD Not folded 82 127 127 129 181 223 336 364
After folded 80 117 132 128 179 227 329 365
5 Elongation MD % 14 12
TD 18 12
6 Breakdown voltage Room temp. kV 8 10 12 12 14 15 16 28
155±2℃ 7 9 11 11 13 14 14.5 25
7 Bonding property at room temp － No delamination
8 Bonding property at 180℃+/-2℃,  10min － No delamination, no bubble, no adhesive flow
9 Bonding property when affected by damp － No delamination

Test Method

As per the stipulations in Part Ⅱ: Test Method, Electrical Insulating Flexible Laminates, GB/T 5591.2-2002 (MOD with IEC60626-2: 1995). 

Packing And Storage

6641 is supplied in rolls, sheet or tape and packed in cartons or/and pallets.

6641 should be stored in clean & dry warehouse with temperature below 40℃. Keep away from fire, heat and direct sunshine.

Production Equipment

We have tow lines, the production capacity is 200T/month.

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Reliable good quality and very good credit standing are our principles, which will help us at a top-ranking position. Adhering to your tenet of “quality 1st, purchaser supreme” for ODM Supplier China Electrical Insulating Composite Foil 6641 F Class DMD Insulation Paper, Prospects initially! Whatever you require, we should do our utmost that will help you. We warmly welcome clients from all over the planet to cooperate with us for mutual improvement.
ODM Supplier China Insulation Paper, Insulation Materials, Our company has already had a lot of top factories and professional technology teams in China, offering the best products, techniques and services to worldwide customers. Honesty is our principle, professional operation is our work, service is our goal, and customers’ satisfaction is our future!

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