[ Manufacturer & trading integrated ]
The insulation material you need, not the one a single line happens to make
DMD, NMN, NHN, DDP, pressboard, sleeving and tape for transformer builders, motor manufacturers and rewind shops — sourced through production partners in Xuchang and Jiaozuo, with workable quantities and honest specifications.
10 material categories
Paper, board, film, sleeving, tape, laminate, varnish, mica, fiberglass, composites
Mixed containers
Several categories consolidated into one shipment
Samples before volume
Run the material on your own line first
Specs marked for status
Confirmed and pending figures labelled, not blended
[ Applications ]
Start from what you build
The material list follows from the machine. Each of these pages sets out which insulation goes where, so you can check your requirement against it rather than assembling it from a catalogue.
Transformer Insulation
Pressboard, paper, laminate and tape for oil-immersed and dry-type builds.
Material listMotor Manufacturing
Slot liner, phase insulation, wedges, sleeving and varnish for production winding.
Material listMotor Repair & Rewinding
Mixed sizes and small quantities for rewind shops — range over volume.
Material listDistributors & Resellers
Mixed containers and repeatable supply for regional stockists.
Material list[ Products ]
Ten material categories
From slot liner and pressboard through to sleeving, tape and impregnating varnish — the materials a transformer or motor build actually consumes.
Insulation Paper
DMD, NMN, NHN, aramid and composite papers for slot and winding insulation.Pressboard
Plain and precompressed board for oil-immersed transformer structural insulation.Insulation Film
Polyester, polyimide and DDP composite films — slit to your working width.Sleeving
Coated fiberglass sleeving — 2715, 2740, 2751, 2753 series across Class B to H.Insulation Tape
Polyester, glass cloth, mica and polyimide tapes for winding and banding.Laminates
Epoxy glass, phenolic paper and silicone glass laminates — sheet, rod and cut parts.Varnish & Resin
Dip, trickle and VPI impregnating varnishes plus potting resins.Mica Products
Mica tape, plate, flexible sheet and tube for HV coil and fire-resistant insulation.Fiberglass Products
Cloth, tape, cord and binding tape for winding reinforcement and banding.Flexible Composites
Multi-layer laminated constructions for slot liner, phase and wedge insulation.[ Why VoltInsulation ]
A different position in the supply chain
Most suppliers in this industry are a single factory selling what that factory makes. We sit in a different place, and it changes what we can be useful for.
Where a material sits outside what our partners run, we can look further rather than steering you to the nearest fit we already stock.
Not limited to one production line
Where more than one production source is workable, we can put the options side by side for you — price, lead time, and what actually differs between them.
Quantities that match how you actually buy
Small builders and rewind shops need range rather than volume. Consolidating several materials into one shipment is usually what makes a workable quantity out of one that would not clear a factory minimum on its own.
Specifications marked for what they are
Where a figure has been confirmed by our production side, it is labelled as confirmed. Where it is an industry reference value we have not yet verified, it says so. We would rather show you the difference than present everything as certain.
[ Manufacturing ]
Where the material comes from
We work directly with production partners in Xuchang and Jiaozuo, Henan — the region that accounts for a large share of China’s electrical insulation materials output. That proximity is what lets us confirm material, run samples, and follow up on production without a layer in between.
Xuchang and Jiaozuo in Henan province account for a large share of China’s electrical insulation material output — which is the practical reason the supply base sits there rather than anywhere else.
See the production sideSlitting to working width
Photography to follow
Inspection
Photography to follow
Packing
Photography to follow
[ Kits ]
Material sets, not single line items
Most builds need six or seven materials together rather than a lot of one. We are putting together application kits — a bill of materials per build type — so a first order can be one conversation instead of seven. These pages are in preparation.
Tell us what you need to buy
Send the grades, thicknesses and quantities — or just describe the machine you build. We reply within one working day, and we will tell you plainly if something is outside what we can supply well.