China China Gold Supplier for China Factory Price Electrical Motor Winding 6640 Class F Nomex/Mylar/Nomex Flexible Laminated Nmn Insulating Paper manufacturers and Exporter

China Gold Supplier for China Factory Price Electrical Motor Winding 6640 Class F Nomex/Mylar/Nomex Flexible Laminated Nmn Insulating Paper

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6640 Polyester film/polyaramide fibre paper flexible laminate (NMN) is a three-layer flexible composite insulation paper in which each side of polyester film (M) is bonded with one layer of polyaramide fibre paper (Nomex). It is also calles as 6640 NMN or F class NMN, NMN insulation paper and NMN insulating paper.

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Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for China Gold Supplier for China Factory Price Electrical Motor Winding 6640 Class F Nomex/Mylar/Nomex Flexible Laminated Nmn Insulating Paper, We’ve been now seeking forward to even better cooperation with overseas consumers dependant on mutual added benefits. For anyone who is interested in almost any of our products and solutions, be sure to experience totally free to contact us for more specifics.
Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for China Nomex Paper, Nmn Composite Paper, Our company’s main products are widely used all over the world; 80% of our products exported to the United States, Japan, Europe and other markets. All stuff sincerely welcome guests come to visit our factory.

6640 Polyester film/polyaramide fibre paper (Nomex paper) flexible laminate (NMN) is a three-layer flexible composite insulation paper in which each side of polyester film (M) is bonded with one layer of polyaramide fibre paper (Nomex) imported from Dupont. The thermal class is F. It is also calles as 6640 NMN or F class NMN, NMN insulation paper and NMN insulating paper.

6640 (1)
6640 (2)

Product Features

6640 NMN has excellent electrical insulating properties, heat resistance, mechanical strength and impregnated property.

Applications

Used for slot insulation, interphase insulation, inter turn insulation and liner insulation in F-class electric motors and electric appliances.

According to customer’ request, we can produce two-layer laminate NM.

Insulation for electric motor

Supply Specifications

Nominal width：900 mm.

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

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

Color: natural color.

Packing And Storage

6640 is supplied in rolls, sheet or tape and packed in cartons or/and pallets.

6640 should be stored in clean & dry warehouse with temperature below 40℃. Keep away from fire, heat and direct sunshine.

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).

Technical Performances

The standard values for 6640 are shown in Table 1 and relevant typical values shown in Table 2.

The properties (mechanical strength, breakdown voltage, flexibility and stiffness) of NMN are different for using different nominal thickness’ polyester film. The thickness of the polyester film should be clearly indicated in purchasing order or contract.

Table1: Standard permormance values for 6640 (NMN) flexible composite 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
2	Thickness tolerance			mm	±0.02		±0.03			±0.04
3	Grammage			g/m2	180±25	210±30	240±30	260±35	300±40	350±50	430±50
4	Tensile strength	MD	Not folded	N/10mm	≥150	≥160	≥180	≥200	≥220	≥270	≥320
			After folded		≥80	≥110	≥130	≥150	≥180	≥200	≥250
		TD	Not folded		≥90	≥110	≥130	≥150	≥180	≥200	≥250
			After folded		≥70	≥90	≥110	≥130	≥150	≥170	≥200
5	Elongation	TD		%	≥10		≥12
		MD			≥15		≥18
6	Breakdown Voltage	Not folded		kV	≥7	≥10	≥11	≥12	≥13	≥15	≥20
		After folded			≥6	≥8	≥9	≥10	≥12	≥13	≥16
7	Bonding property at room temp			—	No delamination
8	Bonding propertyat 180℃±2℃, 10min			—	No delamination, no bubble, no adhesive flow
9	Temperature index for thermal endurance (TI)			—	≥155

Table 2 Typical permormance values for 6640 (NMN) flexible composite 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
2	Thickness tolerance			mm	0.01		0.01			0.015
3	Grammage			g/m2	185	215	246	270	310	360	445
4	Tensile strength	MD	Not folded	N/10mm	163	205	230	267	287	325	390
			After folded		161	202	225	262	280	315	370
		TD	Not folded		137	175	216	244	283	335	380
			After folded		135	170	210	239	263	330	360
5	Elongation	TD		%	20		22
		MD			25		30
6	Breakdown Voltage	Not folded		kV	11	13	15	17	22	23	24
		After folded			9	11	14	16	19	21	22
7	Bonding propertyat room temp				No delamination
8	Bonding propertyat 180℃±2℃ 10min			—	No delamination, no bubble, no adhesive flow.
9	Temperature indexFor thermal endurance (TI)			—	173

Production Equipment

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

Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for China Gold Supplier for China Factory Price Electrical Motor Winding 6640 Class F Nomex/Mylar/Nomex Flexible Laminated Nmn Insulating Paper, We’ve been now seeking forward to even better cooperation with overseas consumers dependant on mutual added benefits. For anyone who is interested in almost any of our products and solutions, be sure to experience totally free to contact us for more specifics.
China Gold Supplier for China Nomex Paper, Nmn Composite Paper, Our company’s main products are widely used all over the world; 80% of our products exported to the United States, Japan, Europe and other markets. All stuff sincerely welcome guests come to visit our factory.