What is your after sales service policy?

Depending on the ordering quantity, we provide free spare parts or controllers for maintenance and offer technical training.

We have been manufacturing and selling pump control panels for 15 years, serving many suppliers from China and overseas.

Where is your location and how to transport?

Located in Changsha. Travel times: Guangzhou (1h air, 2.5h train), Shanghai (1.5h air, 5h train), Beijing (2.5h air), Hong Kong (2h air).

L921 Automatic Control Pump Controller Single Phase Pump Controller

Name: L921 Automatic Control Pump Controller Single Phase Pump Controller
Brand: Hunan Leading Science & Technology Development Co., Ltd.
SKU: 2103581935

Hunan, ChinaHunan Leading Science & Technology Development Co., Ltd.

US$77.90

1-99 Pieces

US$75.50

100+ Pieces

Sample price:US$77.90/piece.Request sample

Product profile

Customization

Available

Task

Program

Structure

Closed-Loop

Model NO.

L921

Mathematical Model

Non-Linear

Signal

Continuous

Function

Automatic Control

Certification

ISO: 9001, CE

Condition

New

Customized

Start Type

Dol(Direct on Line)

Qty of Controlled Pump

Single Pump

Rated Input Voltage

AC220V/AC230V Single Phase

Rated Output Power

0.37kw-2.2kw (0.5HP-3HP) 3-4kw(4HP-5.5HP)

Transport Package

Paper Carton

Specification

6 pcs/carton

Trademark

Neutral

Origin

China

HS Code

9032899090

Production Capacity

100000PCS/Year

Key features

Fully Automatic Control: Smart single-phase controller with built-in water level control for automatic operation.

Multiple Protection Functions: Includes overload, stall, dry run, under/over voltage, and repeat start protection.

Weather-Proof Enclosure: Durable ABS enclosure with IP54 rating suitable for outdoor installation.

Versatile Control Methods: Supports control via float switch, pressure switch, or level/pressure transmitter.

Fault Recording System: Displays last five faults and accumulative running time for easy maintenance.

Remote Monitoring Capability: Equipped with RS485 port and user remote monitor for advanced management.

Wide Power Range: Rated output power supports 0.37kw-2.2kw and 3kw-4kw pumps.

ISO Certified Quality: Manufactured under ISO 9001 and CE standards with strict quality control.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Hunan Leading Science & Technology Development Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory, Trading Company, OtherExport Year: 2005-06-08Nearest Port: Ningbo, Shanghai, GuangzhouAverage Response Time: ≤7.21hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CFR

AI-Powered supplier vetting

SummaryThe supplier is identified as Hunan Leading Technology Development Co., Ltd., a professional technology provider focused since 2001 on intelligent pump controller production, R&D, global sales, and after-sales service. It provides 3D software design, ODM/OEM, and multiple customization options, supported by documented inspection, corrective-action, complaint-handling, quality-assurance, and traceability procedures. Export experience is stated at 18 years, with exports representing 21%–30% of sales, and standard peak- and off-season lead times within 15 working days. However, the supplier has no available SDK, reported no new products in the past year, lacks overseas agents, branches, warehouses, and showrooms, and has no valid manufacturing-capacity contract with its factory and related subcontractors. Evidence is insufficient for certification holding, financial credibility, and customer cases.

Supplier typeThe supplier is Hunan Leading Technology Development Co., Ltd., described as a professional technology supplier focused on pump control and protection solutions, including production, R&D, global sales, and after-sales service. Its company type is recorded as “Combined,” but the exact legal classification is not further explained.

After-Sales capabilityThe company states that it provides after-sales service, maintains in-stock service capacity, and has documented procedures and records for complaint handling, corrective and preventive actions, quality assurance, and traceability. However, it has no overseas agents or branches, no overseas warehouse, no overseas showroom, and reports zero countries with overseas services, limiting demonstrated international after-sales coverage.

R&D capabilityThe supplier is identified as a professional R&D technology supplier and provides 3D software design and ODM services. Nevertheless, it has no available SDK and reported no new products during the past year, so the evidence supports design and development capability but indicates limited recent product innovation.

Production capacityThe supplier reports production operations, documented finished-product inspection procedures, in-stock capability, 18 years of export experience, and lead times within 15 working days in both peak and off seasons. A material control weakness is that the factory and related subcontractors have no valid manufacturing-capacity contract; overseas warehousing is also unavailable.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, together with 3D software design and ODM services. It also reports OEM capability for well-known brands, providing direct evidence of broad customization and design-manufacturing support.

Client casesThe supplier states that it provides OEM services for popular brands, which indicates experience serving recognized-brand customers. No specific customer names, projects, products, or verifiable case details are provided, so the depth and quality of customer cases cannot be fully assessed.

Product Q&A

Q:Can I get samples?

Yes, we can send samples for testing. Please contact us for details.

Q:What is the delivery time?

For standard panels, it takes about 7 working days. For non-standard, it takes 15-20 days.

Q:Do you accept OEM or ODM?

Yes, we accept OEM and ODM with an engineering team, but there is an ordering quantity requirement.

Q:How do you control quality?

We follow ISO standards, controlling quality from raw materials to finished products. Each panel is fully assembled and strictly tested before shipping.

Q:What is the approximate life time?

The designed life time of the control panel is 8 years.