Bolt & Nut, Japan, Takenaka Seisakusho
Takenaka Seisakusho ELE CUT Coating Bolt (Insulating Bolt)
Import from: Japan
Manufacturer: Takenaka Seisakusho
ELE CUT Surface Treatment
In a high voltage atmosphere, products having high insulating performance are needed. ELE CUT Coating bolt has high insulation and high corrosion resistance by a combination of various anticorrosive bolts and insulating materials (insulation sleeve and insulation washer). Anticorrosive bolts are selectable from TAKECOATⓇ-1000， TAKECOATⓇ-CERAMIC1，and DACROTIZED depending on the required anti-corrosive performance. Applicable to all materials， including double-ended bolts and hexagon bolts.
Performance table
DIMENSION OF INSULATION WASHER
| d | d2 | d3 | t |
|---|---|---|---|
| M12 | φ24 | φ13 | 4 |
| M16 | φ30 | φ17 | 4 |
| M20 | φ37 | φ21 | 4 |
| M22 | φ39 | φ23 | 6 |
| M24 | φ44 | φ25 | 6 |
| M30 | φ56 | φ31 | 6 |
Remarks:
- The dimension of L differs according to the type of flange or combination.
- Bolt shape can be selected from the double-ended bolt and hexagon bolt.
- Hexagon nut conforms to attachment to JIS B 1181 and steel washer conforms to bright round and plain round type of JIS B 1256.
CHARACTERISTIC OF INSULATION SLEEVE AND INSULATION WASHER
| Insulation Tube | Insulation washer | |||
|---|---|---|---|---|
| Material | Fluorocarbon polymer | Silicone rubber | Ethylene-propylene rubber | FRP |
| Volume resistance（Ω・cm) | 1018 or more | 2×1015 or more | 2×1015 or more | 1011〜1015 |
| Dielectric strength（kV/mm) | 40 | 25 | 25 | 10 or more |
| Dielectric constant | 2.1 or less | 3.2 | 3.3 | 3.5〜4.5 |
| Compression strength（MPa) | – | – | – | 295～519 |
| Standard color | Transparent | Light gray | Black | – |
| Standard thickness（mm) | 0.5 | 1.0 | 0.5 | 4 or 6 |
Treating process
By basket type dip-spin coating method, a film of excellent throwing power is formed.
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