Epoxy glass fiber winding tube processing and customization

Time: 06-26 2025 Auther: Ztelec group

Introduction to epoxy glass fiber winding tube Epoxy glass fiber winding tube is made of glass fiber impregnated wi...

Introduction to epoxy glass fiber winding tube

Epoxy glass fiber winding tube is made of glass fiber impregnated with insulating colloids of different resin ratios such as epoxy, wet rolled and cured by heat baking. This product has high temperature resistance, reaching H level, good electrical and mechanical properties, low dielectric loss, no deformation and no stratification, chemical corrosion resistance (SF6 resistance) and other characteristics.
It is widely used as the main insulator of H-class dry-type transformers, on-load tap changers, reactors, lightning arresters, SF6 transformers and other products.

Epoxy Fiberglass Winding Tube Workshop

Epoxy glass fiber winding tube processing and customization

XUJUE ELECTRICAL provides various electrical grade glass fiber winding tubes with inner diameters of 6mm-1000mm and lengths generally less than 3.2 meters. The length can be customized according to needs. The winding angle can be controlled between 30 degrees and 90 degrees, and can be treated to resist SF6. Various punching, grooving, cutting, processing of internal or external threads, etc. can be provided.

Epoxy Fiberglass Winding Tube

Epoxy glass fiber winding tube Technical Parameters

Executive Standard：GB-T 23100-2008 IEC61212-2006

Number	Item	Unit	Value
1	Density	G/Cm3	1.95-2.1
2	Flexural Strength At Perpendicular Lamination （Under Normal）	MPa	400
3	Axial Compressive Strength	MPa	≥150
4	Breakdown Voltage At Parallel Lamination （Transformer Oil At 90℃）	Kv	≥40
5	Dielectric Strength At Perpendicular Lamination （Transformer Oil At 90℃, 1mm）	KV/Mm	≥11.6
6	Surface Voltage Resistance After Damp	Kv	≥12
7	Insulation Resistance After Immersion	Ω	1.0×103
8	Dielectric Loss Factor（50Hz）	–	≤0.05
9	Water Absorption	%	≤1
10	Partial Discharge	PC	≤5
11	Thermal Index	–	180

Product Specification

Product specification	3520	380/380A	3640/3641	355	356	3652	364	360
	PFCP22	PFCC21/24	EPGC21/22	–	–	SIGC21	BMIGC21	EPCF52
Min Wall Thickness（mm)	2.0							3.0
Max Wall Thickness（mm)	80	200	200	200	200	200	200	–
Min Inside Diameter(mm)	10	10	6	6	6	10	10	30
Max Inside Diameter（mm)	1200							600
Length（mm)	1000		1000/1200					1000-3000

Epoxy glass fiber winding tube mold table (partial)

Small winding tube workshop mold

Small winding tube workshop mold
Mold diameter * length （φ）mm	Mold diameter * length （φ）mm	Mold diameter * length （φ）mm
16*2000	43*2000	70*2000
20*2000	44*1800	72*2000
22*2000	48*2000	73*2000
30*2000	50*1800	73.5*2000
32*2000	52*1500	75*2000
33*2000	54*2000	77.5*2000
36*2000	55*2000	76*2000
36.5*2000	57*1500	90*2000
38*2000	58*2000	95*1500
40*2000	59.5*2000	95*2000
41*2000	61*2000	97*2000
41*1800	63*1500
42*2000	67*2000

Large winding tube workshop mold

large winding tube workshop mold
Mold diameter（φ）mm	Mold length mm	Mold diameter（φ）mm	Mold length mm
100	3100	345	2750
100	2750	350	3300
105	3100	350	3100
110	3100	355	3100
115	2750	355	2750
116	3100	360	3100
116	2750	365	3100
120	4000	365	2750
120	3250	370	3100
125	3250	375	3250
130	3100	375	3250
135	3100	380	3100
140	3100	380	2750
145	3100	385	3100
145.89	3200	385	2750
145.3	3100	390	3100
145.9	3100	395	3100
145.85	3100	395	2750
146.2	3100	400	3200
146.1	3100	400	2750
150	3100	405	3100
155	3100	405	2750
155	3200	410	3100
160	3100	410	3150
165	3300	415	3100
165	3200	420	3100
170	3100	425	3100
170	2750	425	2750
175	2800	430	3100
180	3100	430	2750
180	2750	435	3100
185	3100	435	2700
185	2750	440	3100
190	3100	440	2750
195	3100	445	3100
195	2750	450	3200
200	3100	455	3100
200	2750	460	3200
205	3100	460	3250
210	3100	465	3100
210	2750	470	3200
215	3100	470	2800
215	2750	475	2800
220	3100	480	3100
225	3300	480	3150
225	3100	484.6	3200
230	3100	484.8	3200
230	2750	485	3100
235	3100	490	3100
235	2750	495	3000
240	3100	495	3200
240	2750	496	3200
245	3100	500	3100
245	2750	505	3200
250	3100	510	3200
250	2750	515	2800
255	3300	520	3100
255	3100	525	3100
260	3100	530	3200
260	3200	535	3200
260	2750	540	3200
265	3100	540	2750
265	2750	550	3200
270	3100	555	3200
270	2750	560	3100
275	3100	560	3400
275	2750	580	2800
280	3100	590	3200
280	2750	604	2800
285	3100	620	3100
285	3200	630	2800
285	2800	640	3200
290	3100	650	3200
290	2750	670	3200
295	3100	676	2800
295	2750	685	3200
300	3000	725	3200
300	3100	750	3200
300	2750	777.77	3100
305	3100	800	3000
305	3300	884	3000
305	2750	1044	2800
310	3100	1080	3200
310	2750
315	3100
315	2750
320	3100
320	3200
325	3100
330	3100
330	2800
335	3100
335	2750
340	3100
340	2750
345	3100

The above mold table is for reference only. The template material is mainly steel, supplemented by epoxy material.

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