Class F NMN Insulation Paper for an Industrial Motor Manufacturer in Mexico
Project at a Glance
An industrial motor manufacturer in Mexico specified Class F NMN insulation paper in two thicknesses: 0.18 mm and 0.20 mm. The order allocation is 500 kg per thickness, totaling 1,000 kg. The material must be selected against the customer's motor insulation design, with the two thicknesses kept distinct during specification approval and receiving. This case documents the material requirement and supply scope.
Project Snapshot
| Project Item | Confirmed Requirement |
|---|---|
| Country | Mexico |
| Customer type | Industrial motor manufacturer |
| Application | Motor electrical insulation |
| Material | Class F NMN flexible insulation laminate |
| Thickness and quantity | 0.18 mm: 500 kg 0.20 mm: 500 kg |
| Total quantity | 1,000 kg |
| Width | 914mm |
Customer Requirement
The customer required Class F NMN for industrial motor insulation, with separate 500 kg allocations for 0.18 mm and 0.20 mm material. Thickness is a functional requirement: it must suit the insulation build and the space available in the motor design.
Before a production release, the specification should also identify the required supply format, dimensional tolerances and any forming or cutting requirements. These details should follow the customer's approved design rather than a generic material description.
The Challenge
For a motor manufacturer, selecting insulation involves more than choosing a temperature label. The laminate must fit the intended geometry and remain suitable for the winding and impregnation process. In a two-thickness order, material identification is also important so that one item is not substituted for the other.
The engineering focus is therefore matching the material grade, thickness and processing conditions to the motor insulation system.
Material Selection
NMN is a flexible laminate with aramid-paper outer layers and a polyester-film core. Chengrui lists NMN for motor insulation uses including slot lining and phase separation. For this project, the specified material is the Class F version; a different NMN grade should not be substituted solely because it shares the same material-family name.
The selected grade's technical data and the customer's insulation-system requirements remain the basis for approval. Material thermal classification does not, by itself, qualify an assembled motor.
Technical Specification
| Parameter | Project Specification / Approval Point |
|---|---|
| Material family | NMN: aramid paper / polyester film / aramid paper |
| Required class | Class F NMN; confirm the exact supplied grade and supporting technical data. |
| Item 1 | 0.18 mm nominal thickness; 500 kg |
| Item 2 | 0.20 mm nominal thickness; 500 kg |
| Electrical and mechanical acceptance | Use agreed test methods, conditioning and limits for the selected grade. |
Chengrui Solution
The Chengrui supply scope for this Mexico project is organized into two distinct items: 500 kg of 0.18 mm Class F NMN and 500 kg of 0.20 mm Class F NMN. This gives the buyer a clear specification and quantity reference for each material.
The release requirements for this scope are straightforward: confirm the grade and dimensions, keep item identification consistent across the order documents, and use the same approved specification for sample evaluation and incoming inspection.
Testing & Verification
For a motor-insulation order, the approval plan should cover:
Check that the technical data sheet identifies the proposed NMN grade and its thermal classification.
Measure thickness and agreed dimensions using the specified method.
Inspect the laminate for visible damage and check forming or insertion suitability with representative samples.
Review electrical test data against the agreed limits and test conditions.
Validate compatibility with the customer's winding, impregnation and complete insulation system.
Processing & Packaging
Any slitting, sheeting or pre-cut shape should follow the approved dimensional requirement. The two thicknesses should be separately identified on the material, packaging and packing list, with protection against handling damage and moisture during transport.
Delivery
The destination is Mexico. Dispatch timing, transport mode and trade terms should be confirmed in the sales and shipping documents. The receiving check should distinguish the two thicknesses and reconcile each 500 kg allocation with the packing list.
Result
The confirmed project scope is 1,000 kg of Class F NMN insulation paper for an industrial motor manufacturer in Mexico, divided equally between 0.18 mm and 0.20 mm. The two-item specification provides a clear basis for procurement, material identification and acceptance planning.
Customer acceptance and in-service performance data are not available for this case.
Related Materials
View the NMN insulation paper product page for material information and supply options. Confirm project-specific requirements in the quotation and approved technical specification.
Related Application
Explore motor insulation materials and application guidance for the relationship between slot insulation, phase insulation and the complete motor design.
Discuss a Similar NMN Requirement
Send Chengrui your required thermal class, nominal thickness and tolerance, supply dimensions, quantity and testing requirements. Contact Chengrui about Class F NMN insulation paper.
Project specification provided by Chengrui. Last updated: 26 October 2026.
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