Electrical Insulation Oil Duct Milling Spacers for Transformer

Transformer Insulation board(IEC Standard)














Electrical Insulation Paper Spacers for Transformer Quick Details

Place of Origin: China (Mainland)                      Brand Name: XINCHENG

Name 1: Transformer Insulation Spacers                Name 2: Insulation Oil Duct Block

Type 1: Insulation T-Spacer                          Type 2: Insulation Wedge Spacer

Type 3: Insulation stepped spacer                      Type: Insulator

Model Number: spacer                              Material: Insulation pressboard

Application: High Voltage                             Rated Voltage: 110-1000KV

Raw Material: unbleached sulphate wood pulp           Type: Insulation Paper


Electrical Insulation Paper Spacers for Transformer

Insulation Spacers/Block for Oil Immersed Transformer 

The spacers are made of our imported milling machines, generally have T-shapped spacers, trapezoidal spacer, wedge-spacer, stepped spacer, ect.

  1. Insulation spacers

Insulating components are made of 100% Electrical-grade pulp through special designed moulds and processing methods or professional machines, which can ensure application in oil-immersed power transformers for good mechanical strength and insulation property.

Electrical Insulation Paper Spacers for Transformer Dimension Range and Tolerance(mm)

No. Property Value
1 Thickness δ ±0.1
2 Width B B≤80
Tolerance ±0.5
3 Length L L≤220
Tolerance ±0.5


Electrical Insulation Paper Spacers for Transformer Dimension Range and Tolerance(mm)

No. Property Value


H,h H ±0.5 h 0




B,b B 0


b ±1.0


L,L1 +5.0


L1 Tolerance

Rounded angle

R R<5 5≤R<10 ≥10
Tolerance +1.5






Note: We can manufacture the special strips out of the above dimensions with  negotiation.

  1. Stepped-Spacer 

Q: How long is your delivery time?
A: Generally it is 3-7 days if the goods are in stock. Or it is 1-2weeks if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge(except special products), but do not pay the cost of freight.
Q: How can you guarantee the quality of mass production is same with the sample sent to me before?
A: Our warehouse staff will leave another same sample as yours. The production process will be under your requirement.
Q: What is your terms of payment ?
A: Payment≤1000USD, 100% in advance. Payment≥1000USD, 30% T/T in advance ,balance before shipment.

Our service
Pre-sales Service
1.Offering comprehensive technical and business consultation services;
2.Designing and fabricating targeted products according to the special requirements of clients;
3.Introducing & Demonstrating products and its application to clients;
4.Helping clients to choose the required products.
After-sales Service
1.Highly inspecting equipments in every working procedure, quality comes first;
2.Fast & Safe Delivery;
3.Dispatching technician if customer need any site instruction.

Packaging & Delivery
1.Plastic bag and pallets.
plywood case/wooden case
2. According to cusotmer’s  special requirement.
Delivery: Around 1-2weeks upon order confirmed.

Please Contact Us

 Miss: lydia

Mob: 86-13752439076      Fax: 86-22-60863016       




WeChat : 86-13752439076   WhatsApp: 86-13752439076