Import 12v 220v Audio Toroidal Transformer — Buy in wholesale FOB from Supplier in China
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12V 220V Audio Toroidal Transformer
This toroidal transformer from Tianjin Grewin Technology is designed for audio equipment and general power applications, converting 220V mains input to a 12V output. The listing specifies a power range from 50VA to 5000VA, with a ring-shaped core and single-phase operation at power frequency. Key performance features cited include low no-load losses, minimal mechanical hum, low magnetic leakage, and high efficiency with a power factor between 0.9 and 0.98.
Toroidal transformers use a continuous strip-wound core, which gives them a more compact footprint and lower electromagnetic interference (EMI) compared to traditional laminated EI types. The core material is typically grain-oriented silicon steel, wound into a toroid to minimise air gaps. Typical specifications for this class include an efficiency of 90-95%, a temperature rise of 40-60°C under full load, and insulation class B (130°C) or F (155°C). The unit is described as encapsulated in an iron shell.
Buyers of these transformers are commonly in the audio amplifier, industrial control, and medical equipment sectors, where low noise and stable voltage are priorities. The supplier lists CE, RoHS, SGS, CESI, and ISO 9001 certifications. Trade terms, minimum order quantities, and specific lead times are not detailed on the listing, so these must be confirmed directly with Tianjin Grewin before sourcing.
| Power Rating Range | 50VA to 5000VA |
| Primary Voltage | 220V (confirm available primary voltages) |
| Secondary Voltage | 12V (confirm available secondary voltages) |
| Frequency | Power Frequency (50/60Hz typical) |
| Core Shape | Ring (Toroidal) |
| Phase | Single-phase |
| Power Factor | 0.9 to 0.98 |
| Encapsulation | Encapsulated by Iron Shell |
| Mounting Options | Horizontal, Sunk, Side Type, and Bridge |
| Insulation Class | Typical Class B (130°C) or Class F (155°C) |
Tianjin Grewin Technology Co., Ltd. is located at Meinian Plaza, Dongting Road, Tianjin, China (postal code 300222). The supplier's profile shows a harbour trust tier with a 0% response rate and no average response time data, suggesting buyers should be patient or use multiple contact methods for initial outreach.
The listing under the Grewin brand claims certifications including CE, RoHS, SGS, CESI, and ISO 9001. The profile does not provide information on the company's manufacturing history, factory scale, or export markets. Buyers should request verification of these certifications and ask about production capacity and sample availability before placing orders.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Sourcing 12V 220V Audio Toroidal Transformer from Tianjin Grewin Technology - China Import Guide
Before ordering from Tianjin Grewin, request a detailed datasheet for the specific VA rating you need, including no-load current, regulation percentage, and temperature rise data. Verify the claimed certifications (CE, RoHS, ISO 9001) by asking for certificate numbers and issuing body details. If your application requires compliance with specific regional standards (e.g., EN 61558, UL 506), confirm the transformer meets them.
Confirm lead time and minimum order quantity directly with the supplier, as these are not stated on the listing. For transformers in the 500VA and above range, lead times can extend to several weeks for production. Discuss incoterms (FOB Tianjin, CIF, or EXW) and ensure the packaging protects the core during transit. Toroidal transformers are relatively heavy for their size, so factor in accurate weight calculations for shipping costs.
For quality control, request a sample unit before placing a bulk order. Test the sample under load to verify the output voltage is within specification (typically ±5% at full load) and that mechanical hum is acceptable for your application. Check the insulation resistance with a megger (should be in the hundreds of megaohms) and verify the no-load current is within typical limits (usually 5-10% of full load current for toroidal types).
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30 suppliersBuy 12v 220v Audio Toroidal T in Bulk — Verified Supplier in China
When sourcing 12v 220v Audio Toroidal Transformer for your business, securing the right balance of quality and cost is essential. Tianjin Grewin Technology Co., Ltd., a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $5.8/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Electric Transformers sector with strong demand from importing countries worldwide.
12v 220v Audio Toroidal T Specifications, Trade Terms & Pricing
Importing 12v 220v Audio Toroidal T requires careful attention to shipping logistics, customs compliance, and secure payment terms. Tianjin Grewin Technology Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
About Tianjin Grewin Technology Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this 12v 220v Audio Toroidal T has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Electric Transformers category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import 12v 220v Audio Toroidal T — Shipping, Logistics & Customs
Importing 12v 220v Audio Toroidal T requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About 12v 220v Audio Toroidal T
What is the wholesale price of 12v 220v Audio Toroidal Transformer?
The current listed wholesale price for 12v 220v Audio Toroidal Transformer from Tianjin Grewin Technology Co., Ltd. is $5.8/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Tianjin Grewin Technology Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for 12v 220v Audio Toroidal T?
The supplier, Tianjin Grewin Technology Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for 12v 220v Audio Toroidal T. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for 12v 220v Audio Toroidal Transformer?
The HS Code classification for 12v 220v Audio Toroidal Transformer depends on the specific grade and form. Contact Tianjin Grewin Technology Co., Ltd. through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import 12v 220v Audio Toroidal T from China?
To import 12v 220v Audio Toroidal T from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Tianjin Grewin Technology Co., Ltd.. Ensure you have the necessary import licenses for Electric Transformers products in your destination country.
Is Tianjin Grewin Technology Co., Ltd. a verified supplier?
Yes, Tianjin Grewin Technology Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of 12v 220v Audio Toroidal Transformer?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Tianjin Grewin Technology Co., Ltd. through EximNext.
What packaging options are available for bulk orders of 12v 220v Audio Toroidal T?
Tianjin Grewin Technology Co., Ltd. offers 12v 220v Audio Toroidal T with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import 12v 220v Audio Toroidal T the most?
12v 220v Audio Toroidal T is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Tianjin Grewin Technology Co., Ltd. through our platform.
What certifications does this 12v 220v Audio Toroidal T supplier hold?
Tianjin Grewin Technology Co., Ltd. maintains international quality certifications. These ensure that the 12v 220v Audio Toroidal T meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for 12v 220v Audio Toroidal Transformer on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Tianjin Grewin Technology Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Tianjin Grewin Technology Co., Ltd..
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