How long does delivery take?

Standard products take 10-15 working days. New customizations require an additional 5-7 days for samples. Large orders may take 15-30 days.

Can you provide samples and how are they charged?

Samples are available for serious customers. A fee is usually required but can be refunded or deducted after a bulk order. Sample lead time is 3-5 days.

What are common reasons for transformer failure and do you provide warranty?

Common causes include overload, short circuit, and harsh environments. We provide a 1-year warranty covering free repair or replacement for quality issues.

50/60Hz Encapsulated Spot Welding Potting Low Frequency Transformer

Name: 50/60Hz Encapsulated Spot Welding Potting Low Frequency Transformer
Brand: Hangzhou Udwells Technology Co., Ltd.
SKU: 2236975465

Zhejiang, ChinaHangzhou Udwells Technology Co., Ltd.

US$0.50-1.50

500 Pieces

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier, Audio

Phase

Single

Model NO.

Core

Core-type Transformer

Cooling Method

Dry-type Transformer

Winding Type

Multi-winding Transformer

Certification

ISO9001

Usage

Single-phase Transformer

Frequency Characteristics

Low Frequency

Shape of Core

Operating Temperature

-40ºCTO +125ºC

Storage Temperature

-25ºCTO+85ºC

Customize

Yes

Type

Ei/Toroidal

Installation Method

Vertical/Horizontal/with a Base/with a Cover

Transport Package

Export Standard Carton and Strong Pallet

Specification

EI Series Low Frequency Transformer

Origin

Zhejiang

Production Capacity

200000 PCS/Month

Key features

Customization Options: Full customization available including EI/Toroidal types, shielding layers, and specific installation methods.

High-Quality Materials: Uses new high-grade silicon steel sheets (H18/H14) and 100% pure copper wire for superior performance.

Advanced VPI Process: Vacuum impregnation ensures moisture resistance, shock absorption, and high insulation strength.

Comprehensive Testing: 100% factory testing including Hi-Pot, inter-winding, load, and no-load current tests with reports.

EMI Shielding Capability: Optional copper foil shielding layer effectively suppresses high-frequency interference for audio/instruments.

Flexible MOQ Structure: Lower MOQ for standard specs (100pcs); higher MOQ (500-1000pcs) for fully custom mold-based designs.

Sample Support: Samples available for serious customers with fee refundable upon bulk order placement.

Company profile

High Repeat Buyers ChoiceFast DeliveryPrivate MoldQuality Assurance

Hangzhou Udwells Technology Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤3.72h

AI-Powered supplier vetting

SummaryHANGZHOU UDWELLS TECHNOLOGY CO. Ltd. is a combined company with a strong technological base and significant production capacity. It offers OEM services for popular brands and operates more than 10 production lines. However, there are gaps in R&D documentation and service capability procedures. The company does not hold SDKs for development, nor does it have overseas facilities or participate in trade shows. Its primary export market is Europe, and it has proximity to major ports in China.

Supplier typeThe supplier is identified as a 'Combined' type company, indicating a diverse business scope.

After-Sales capabilityThe supplier provides technical support for production and after-sales service but lacks documented procedures for service capability and customer complaint handling.

R&D capabilityThe company lacks R&D audit documentation and SDK availability, indicating limitations in software development and innovation processes.

Production capacityThe supplier operates 27 production lines, indicating robust manufacturing capacity. Its annual production output ranges from US$1 Million to US$2.5 Million.

Customization capabilityThe supplier provides OEM services for well-known brands, demonstrating its ability to customize production.

Product Q&A

Q:What specifications are needed for a 220V to 12V step down transformer?

Please provide Input Voltage (with fluctuation range), Output Voltage & Current, Rated Power (VA/W), Frequency (50Hz/60Hz), Construction type (Toroidal/EI/R), Installation method, and Insulation Grade.

Q:Which should I choose: Toroidal or EI transformer?

Toroidal offers high efficiency, low leakage, and low noise for high-end audio/instruments but is larger/heavier. EI is smaller/lighter, cost-effective, and easier to maintain for general industrial use.

Q:Is there a shielding layer in transformers and what is it for?

Yes, a copper foil shielding layer can be specified between primary and secondary coils to suppress high interference and enhance EMI resistance, essential for audio and measuring instruments.

Q:How do you ensure quality and service life?

We use high-grade materials (silicon steel, pure copper), VPI process for insulation, and conduct 100% factory tests including Hi-Pot, load, and no-load tests.

Q:What is the price and minimum order quantity (MOQ)?

Price depends on power and complexity. MOQ is lower for standard specs (e.g., 100pcs) and higher for custom specs requiring mold opening (e.g., 500-1000pcs).