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110v 120v 220v 240v machine for winding toroidal transformer manufacturer for electrical welding machine

110v 120v 220v 240v machine for winding toroidal transformer manufacturer for electrical welding machine

  • FOB Price:
  • US 5.20-21.50 /Piece Get Latest Price
  • Order Quantity:
  • 100-40000 /Piece Get Latest Price
  • Business:
  • Toroidal Transformer,High Frequency Transformer,laminated transformer,Current Transformer,Inductors
  • Export:
  • 71% - 80%
  • Volume:
  • US$2.5 Million - US$5 Million
  • Address:
  • Room 209-1, F2 Econimic Building of head office,No.1 JingHui Road of Dongli Lake,Dongli Distr,Tianjin in China.,300301, Tianjin, China (Mainland)

Product Detail

Quick Details
  • Place Of Origin:tianjin China (mainland)
  • Brand Name:grewin
  • Model Number:gwb1218,gwb1236,gwb22015,gwb1119
  • Usage:power,power,electronic,audio,instrument,rectifier,reactor
  • Phase:single
  • Coil Structure:toroidal
  • Coil Number:autotransformer,high Flux Density Grain- Oriented Silicon Steel
  • Voltage Transformer 220v To 110v:toroidal Transformer
  • Ce Toroidal Transformer:for Testing Equipment
  • Transformer For Medical Equipment:low Rise High Efficiency
  • Leads - Length And Insulation:secondary Windings Connections
  • 95% Efficiency:
  • Horizontal:sunk, Side Type, And Bridgeinstallation
  • Type:toroidal Transformer
  • Encapsulated By Iron Shell:ce, Rohs, Sgs, Cesi And Iso9001

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  • Ce Toroidal Transformer

1.We have abtained VDE,UL,CE,ROHS,ISO9000 Approal and SGS Audit Supplier in China,We guarantee quality is the first:

The dimension of the toroidal transformers:


The Partial List of GW-B  Series Toroidal Transformers with Cable and Mounting Holes:


20VA Φ 60 H25 >82 10mA 1.20V 0.45kgs
30VA Φ 65 H35 >84 10mA 1.20 0.50kgs
50VA Φ 70 H40 >88 20mA 1.15 1.30kgs
100VA Φ 85 H60 >90 30mA 1.15 1.50kgs
120VA Φ 90 H75 >93 40mA 1.10 2.00kgs
200VA Φ 110 H80 >93 100mA 1.10 2.80kgs
300VA Φ 120 H80 >94 150mA 1.08 3.50kgs
500VA Φ 130 H80 >94 150mA 1.08 5.00kgs
800VA Φ 140 H85 >94 200mA 1.08 6.50kgs
1000VA Φ 140 H85 >95 300mA 1.05 8.50kgs
1500VA Φ 160 H90 >95 400mA 1.05 12.0kgs
2000VA Φ 180 H90 >95 400mA 1.05 15.0kgs
4000VA Φ 220 H95 >95 500mA 1.05 20.0kgs
6000VA Φ 250 H95 >95 500mA 1.05 25.0kgs


1. Installation:
Horizontal (non-conventional-type base plate), sunk, side type, and bridge.

Especially low-hum and low-dispersing construction
Low-level of induction
High-grade design casing possible
Statically shield winding and magnetical shield winding optional .

Be used widely such as audio equipment,communication,new energy areas,Electrical control,Cable TV network etc.         

Over 50 sets toroidal/annular/ ring coil winding machines, 3 EI type transformer lines, 2 sets of vacuum annealing furnaces, A set of nitrogen and hydrogen production equipment as below:
. Automatic Winding Machine
. Semi-automatic Winding Machine
. Toroidal Winding Machine
. Insert Lamination Machine
. Wave Soldering Machine
. Plastic Termal Ultraviolet Machine
. Domino Ink Jet Printing Machine

 Transformer Multitester for High & Low Frequency
 Layer Insulation Withstand Voltage Tester


Under no circumstances should both ends of the fixing bolt simultaneously contact the metal chassis or framework as this would create a potentially dangerous 'shorted-turn'.
The certificate of our transformer has CE CQC RoHs UL
The above-mentioned toroidal transformer is frequently-used, we can also manufacture the products by customer design. And the specification is for reference, if has the change further, please take the material object as the standard.
7.GREWIN'S Dimension : External diameter: 55mm-300mm, height :13mm-130mm, Efficiency: 75-98%
we can design the appropriate products according to customers' requirments such as installation dimension, input and output voltage,power...etc.)

B.Dual 110V Power Transformer:

For the international market request, these types of the GREWIN Transformers are designed into dual primaries for 110V. No matter what about your local voltage is 110V or 220V, you should use them. Below are the methods for using:
1. If you are using 110VAC(such as Taiwan, US), Please parallel the two primaries 110V. Please pay attention to the terminals of 110V must be short circuit, and the terminals of 0V must be short circuit.

2.If you are using 220VAC(such as Hongkong, China Mainland, Europe), Please series the two primaries.  Please pay attention to one terminals of 0V must be short circuit with another terminals of 110V.


3.GREWIN has various kinds of state-of-the-art equipment, which are used in production, sampling and testing. Our equipments enable us to produce good quality products efficiently.



  4.The following picture showed you about all finished toroidal transformer production line and package with export standard carton and strong pallets:

5.About us:


Tianjin Grewin Technology Co.,ltd. has always placed great emphasis on our core business philosophy "Quality and Honesty First ". Due to continuous innovative research and development, technical standards and efficient.A professional leading and a main exporter of a wide variety of electronic components in China for many Years.



 6. We can manufacture High Frequency Transformers,EI Power Transformers.Below is our mainly products with much advantages in our market:

7.Flow chart of trading activities:




Days need


Request for quotation

1 day


Making quotations

1 day


Offer and counter offer

3 days


Sending and receiving samples

3-10 days


Sample confirmation

3 days


Placing a firm order

1 day


Paying and receiving the down payment

1-4 day


Factory production & Quality inspection

15-20 days


Paying and receiving the balance

4 days


Delivery of goods

1 days


8.Acceptance of the Conditions:


All orders accepted by GREWIN are subject to the general sale conditions herein set forth, which are understood and accepted by the Purchaser when passing the order and/or upon receipt of GREWIN invoices. Other conditions as well as any verbal agreement are considered valid only if specifically confirmed by GREWIN in writing.


9.Payment terms:


(1). T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before delivery.


(2). By irrevocable L/C at sight, to be issued immediately against confirmed order.


(3). Payment by T/T, if order amount is less than USD 20,000.


10.Sample terms:


(1). Samples will be sent subject to advance payment to cover the courier charge and samples charge.


(2). You are pleased to instruct your courier company to pick up samples in our TianJin, China office at your expenses. For pick-up details, please advise your courier company to contact us.


(3). Delivery time 3-10 working days.


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