Products Description
Insulation Laminated Wood for Transformers , also known as laminated densified wood (LDW), is an insulating and structural material specifically designed for power transformers and large electrical equipment. Made from birch wood, it's resin-impregnated and laminated under high temperature and high pressure, resulting in excellent mechanical strength and insulation properties.
This material is widely used in the transformer industry, primarily in clamps, supports, spacers, and plywood.
Resin: Epoxy resin impregnation
Process: Layer-by-layer lamination → High-temperature curing → Forming
Why Choose Us?
International Certifications: Compliant with IEC, RoHS, and other standards
Stable Quality: Strictly screened raw materials and traceable production processes
Complete Specifications: We offer both full-sheet and custom-cut options to accommodate a wide range of transformer designs
Experience: We serve transformer manufacturers and electrical equipment manufacturers for a long time
Export Advantages: We have sophisticated packaging and shipping solutions to ensure our products arrive intact.
Boards Flatness(Unit mm)
| Normal Thickness | Distance of points on the veneer face from light weight straight ruler | |
| 500 straight ruler | 11000straight ruler | |
| ≤15 | 2 | 4 |
| >15...≤25 | 1.5 | 3 |
| >25...<60 | 1 | 2 |
| >60 | 1 | 1 |
Normal Length and Width Tolerance (Unit mm)
| Length and Width | Tolerance |
| >100...≤250 | ±0.8 |
| >250...≤500 | ±1.0 |
| >500...≤1000 | ±2.0 |
| >1000...≤2000 | ±3.0 |
| >2000 | ±4.0 |
Product Display
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Surface Quality
| Item | Allowed Range |
| Swelling | Not Allowed |
| Cracking | |
| Dead Knot | |
| Foreign-body Adhering | |
| Insect Hole | |
| Rot | |
| Contamination |
Normal Thickness and Tolerance (Unit mm)
| Normal Thickness | Tolerance |
| ≤10 | ±1.4 |
| >10...≤15 | ±1.6 |
| >15...≤20 | ±1.8 |
| >20...≤25 | ±2.0 |
| >25...≤30 | ±2.2 |
| >30...≤40 | ±2.6 |
Packing
Insulation Laminated Wood for Transformer packaged in wooden crates, wooden framed cases or other strong enough materials covered with moisture-proof materialoutside.
Gross weight of each package not exceeds 3000kgs.
Storage
Insulation Laminated Wood should be stored in a clean and dry room with temperature not exceeding 40℃ and should be laid flat wise on a stepping-board which is at least 50mm from the ground, never close to fre source, heat source and protected against moisture.
Application scenarios
It is suitable for motors, transformers, electrical equipment and insulating structural parts with high mechanical performance requirements.
Production process
Factory Display
FAQ
1/Q:How can l get more information about your product?
A:You can send us an emal or ask our online representatives and we can send you the latest catalog and priceist.
2/Q:Do you accept OEM or ODM?
A:Yes,But we have quantity requirements.please contact us directly.
3/Q:What is the payment way of your company?
A:T/T,sight L/C,Paypal,Western Union.
4/Q:What is the shipping way?
A:By sea,air,Fedex,DHL,UPS,TNT etc.
5/Q:How long for manufacturing once we place order?
A:lt's about 20-30 days after payment or disposit.
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