Name:
Grewin 12v 24v Toroidal Transformer Ring type Transformer 100va 200va

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

2.Application: 
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.         
3.Equipment: 
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
4.Certificate 
The certificate of our transformer has CE CQC RoHs UL 
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.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.
 
8.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.
 
9.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.
10.CONTACT NAME CARD: