About Nanjing Invoee Technology Co., Ltd. - DC, AC Inverters & Converters Supplier in China

Nanjing, China hosts Nanjing Invoee Technology Co., Ltd., which currently lists six active products in its catalogue. The company’s portfolio focuses on CNC spindle drives and variable frequency inverters, falling under the DC, AC Inverters & Converters and CNC Machines & Spare Parts categories. The listed items include a CNC machine tool spindle drive AC drive, a CNC spindle frequency converter AC drive (HS code 8504.40), a CNC lathe spindle drive VFD inverter, the VC660 11.0 kW CNC spindle AC drive, the VC690 upgraded CNC spindle inverter (HS code 8504.40), and a professional CNC lathe spindle VFD inverter (HS code 8504.40). All three HS‑coded entries belong to HS chapter 85 for electric transformers, converters and static converters. The catalogue specifies materials such as aluminum housings, steel/aluminum alloy enclosures, PCB composites and copper windings.

In addition to the inverter and drive listings, the supplier categorises its offerings under Agriculture, DC/AC Inverters & Converters and CNC Machines & Spare Parts, indicating a broader product focus beyond the six listed items. Each product is described as an AC drive or VFD inverter designed for CNC spindle applications, with power ratings ranging from modest spindle drives up to 11 kW units. The presence of detailed material descriptions for the HS‑coded items suggests compliance with typical electrical safety and durability requirements for industrial equipment. The catalogue does not provide additional quantitative data such as dimensions or weight, limiting the description to the product type, material composition and HS classification.

Product Range and Specialties of Nanjing Invoee Technology Co., Ltd.

The six catalogue entries cover three main device types: AC drives for spindle motors, frequency converters for CNC spindles and variable‑frequency drive (VFD) inverters for lathe applications. In the CNC drive market, typical power ratings span from 0.5 kW to 15 kW, with voltage classes of 380‑480 V three‑phase and frequency options of 50 Hz/60 Hz. Buyers commonly look for IEC 61800‑5‑1 compliance, efficiency class IE3, total harmonic distortion (THD) below 5 %, and protection ratings of IP54 or higher. Materials such as aluminum or steel alloy housings provide thermal management, while copper windings and PCB‑based control boards deliver electrical performance and compactness. The VC660 11.0 kW model aligns with the higher‑end spindle power segment, often paired with high‑speed steel or carbide tools that require precise speed control.

Industry practice for CNC spindle drives includes optional features like built‑in braking, regenerative feedback, and communication interfaces such as Modbus, Profibus or EtherCAT. Typical packaging for these units involves anti‑static foam inserts within wooden crates or reinforced pallets, designed to protect delicate electronic components during sea freight. Export quantities are usually measured in units per 20‑ft container, with a standard 11 kW inverter occupying roughly 0.15 m³, allowing 12‑14 units per container.

Trade and Export Information - Nanjing Invoee Technology Co., Ltd.

China is a major exporter of CNC spindle drives and power converters, with Europe, North America and Southeast Asia forming the largest import regions. The HS code 8504.40 covers static converters and inverters, which customs authorities often require CE marking, RoHS compliance and a test report confirming conformity to IEC 61800‑5‑1. Importers typically request a Certificate of Conformity (CoC) and a factory test report detailing efficiency, temperature rise and insulation resistance. Shipping is frequently arranged on a FOB basis from Nanjing or Shanghai ports, with 20‑ft containers holding 12‑14 spindle drives and 40‑ft containers doubling that capacity. Packaging standards call for moisture‑resistant pallets, anti‑static cushioning and clear labeling of HS code, weight and handling instructions.

Regulatory checks for 8504.40 items may include random sampling by the destination country's safety agency, especially for markets that enforce UL or CSA certification. While the supplier’s catalogue does not list specific certifications, buyers should verify that the units carry CE, UL or equivalent marks before shipment. Typical export documentation includes commercial invoice, packing list, bill of lading, and a test certificate matching the declared specifications.

Sourcing from Nanjing Invoee Technology Co., Ltd. - Buyer Guidance

When sourcing from this supplier, buyers should request the IEC 61800‑5‑1 test report, a CE Declaration of Conformity and a RoHS compliance statement for each inverter model. Verifying the material composition - aluminum versus steel housing - and confirming the rated input voltage, power output (e.g., 11 kW for the VC660) helps ensure compatibility with existing CNC equipment. Samples or pre‑shipment inspection reports are advisable to check for visual defects, correct labeling of the HS code and proper functioning of the control interface.

Before placing an order, buyers should clarify the minimum order quantity (MOQ), typical lead time for each model, and the packaging format (e.g., wooden crate with anti‑static foam). Requesting a third‑party inspection report, such as an SGS or Bureau Veritas audit, can provide additional assurance of build quality and compliance with the declared specifications.

What product types does Nanjing Invoee list in its catalogue?

The catalogue includes CNC machine tool spindle drive AC drives, CNC spindle frequency converters, CNC lathe spindle VFD inverters, the VC660 11.0 kW spindle AC drive, the VC690 upgraded spindle inverter and a professional CNC lathe spindle VFD inverter, all classified under HS code 8504.40 where specified.

Which HS code is associated with the supplier’s inverter products?

Three of the listed items - CNC spindle frequency converter, VC690 upgraded CNC spindle inverter and the professional CNC lathe spindle VFD inverter - are recorded with HS code 8504.40, which covers static converters and inverters.

What material specifications are provided for the HS‑coded items?

The HS‑coded products are described as having electronic components on PCB housed in metal enclosures; the VC690 uses a steel/aluminum alloy enclosure, while the professional CNC lathe inverter mentions a steel housing with PCB components.

Which industry certifications should a buyer request for these inverter drives?

Buyers should typically request CE marking, RoHS compliance and an IEC 61800‑5‑1 test report; additional certifications such as UL or CSA may be required by the buyer’s target market.

What are the common packaging and shipping practices for CNC spindle drives from China?

Standard practice is to pack each unit in anti‑static foam within a reinforced wooden crate or pallet, label the crate with HS code 8504.40, weight and handling instructions, and ship in 20‑ft or 40‑ft containers on FOB or CIF terms.

What documentation is essential before importing these drives?

Essential documents include a commercial invoice, packing list, bill of lading, Certificate of Conformity (CE), RoHS statement and the IEC test report confirming efficiency, voltage and safety parameters.

What typical lead times and MOQ can a buyer expect for the VC660 11.0 kW spindle drive?

Lead times for CNC spindle drives from Chinese manufacturers generally range from 30 to 45 days after order confirmation; MOQ is often set at a single unit for prototype orders but may increase to 10‑20 units for mass production.

How should a buyer verify the performance specifications of the supplied inverters?

Buyers should request the manufacturer’s performance curve, efficiency rating (commonly IE3), THD percentage, insulation resistance values and temperature rise data, and compare these against IEC standards before final acceptance.