LENJEX Industrial Cleaning
About LENJEX
Industrial ultrasonic cleaning equipment manufacturing and process development from Jinan, China.
Company Overview
Ultrasonic cleaning equipment built around the real production task
Jinan LENJEX Machinery Co., Ltd. was established in 2013 in Jinan, Shandong. The company focuses on the development, manufacture and international supply of industrial ultrasonic cleaning equipment.
Projects begin with the workpiece, soil, required cleanliness, production rate and site conditions. This process-led approach supports standard machines, customized multi-stage systems and automatic cleaning lines without separating equipment design from the cleaning result.
LENJEX also supports representative-part trials and small-batch contract cleaning so customers can study the process before committing to a final equipment configuration.

Mission
Make industrial cleaning more efficient, environmentally responsible and intelligent
LENJEX's stated mission is to develop professional industrial cleaning expertise that improves the way manufacturers control cleaning results.
Vision
Serve industrial cleaning projects across global markets
The company aims to grow as an industrial cleaning equipment manufacturer and solution provider for diverse production environments.
Product and Service Scope
From one cleaning tank to a coordinated production line
LENJEX maintains a focused ultrasonic portfolio for batch, multi-stage and automated cleaning projects.
Standard cleaning equipment
Industrial single-tank cleaners, insulated-cover units and benchtop systems for maintenance, trials and batch production.
Multi-stage systems
Wash, rinse, passivation and drying stages configured around carryover control, cleanliness targets and production flow.
Automatic cleaning lines
Gantry, robotic and conveyor handling with PLC recipes for stable transfer and repeatable cycle timing.
Process and component support
Trial cleaning, contract cleaning, generators, transducer plates, baskets and application-specific accessories.
Manufacturing Capability
Fabrication, assembly and testing managed through one workshop flow
The workshop integrates CNC bending and shearing, laser cutting, TIG welding, stainless-steel polishing, mechanical assembly and system testing.
- 01Cut and form
Prepare stainless-steel tanks, covers, frames and process structures.
- 02Weld and finish
Build process tanks and pipework, then polish the required surfaces.
- 03Integrate
Install transducers, generators, heaters, filtration, controls and handling systems.
- 04Test
Check ultrasonic output, heating, leakage, electrical safety and operating stability.

Engineering and Quality
Design decisions stay connected to verification
Mechanical, ultrasonic, process and controls work are reviewed as one system, followed by staged inspection during manufacturing and final testing.

From drawings to process validation
The engineering scope includes transducer matching, generator selection, cleaning-process development, PLC programming, mechanical design and 3D modeling.

Checks at incoming, production and final stages
Inspection covers incoming components, fabrication, tank integrity, electrical operation, heating, ultrasonic output and run testing before shipment.
Service Advantages
Engineering support connected to manufacturing and delivery
The supplied service material emphasizes customization, ultrasonic technology, stainless-steel workmanship, staged inspection, technical support and export coordination.

Application engineering
Define the cleaning duty before selecting the tank, frequency and acoustic configuration.
- Customized designWorkpiece, soil, capacity and site review.
- Ultrasonic matchingGenerator, transducer and tank coordination.

Manufacturing control
Keep material selection, fabrication and staged testing within one documented workshop flow.
- Stainless workmanshipSUS304 or SUS316 fabrication and finishing.
- Staged quality controlProduction, electrical and operating checks.

Support and delivery
Carry the confirmed project scope through documentation, packing and destination coordination.
- Technical supportGuidance, documents and spare-parts planning.
- Export coordinationPacking, shipping records and remote communication.
People and Working Principles
A compact team covering the full project chain
The team includes more than 40 employees across R&D, skilled production, international sales and after-sales engineering.

Clear ownership from review to service
Each discipline works from the same confirmed cleaning target and project record.
Customer first
Start from the production requirement and communicate the technical trade-offs clearly.
Quality first
Treat stable operation and verifiable manufacturing checks as part of every equipment project.
Practical innovation
Use engineering development to improve cleaning performance, control and production efficiency.
Long-term cooperation
Support project communication from first review through production, shipment and service.
Project Service
One review path from samples to international delivery
Technical and commercial communication follows the same project record so the confirmed process, machine configuration and delivery scope stay aligned.

- 01
Application review
Confirm the part, contamination, cleanliness target and production capacity.
- 02
Process study
Record trial conditions and agree on a practical acceptance method.
- 03
System design
Define process stages, handling, controls, utilities and layout.
- 04
Build and verify
Complete fabrication, assembly, functional checks and final testing.
- 05
Delivery support
Coordinate packing, documents, guidance and service planning.
Project Experience
Documented cleaning projects from supplied customer records
These records show how equipment configuration changes with the workpiece, contamination, production method and acceptance target.
Samara, Russia
Industrial Ultrasonic Cleaners for a Bearing Manufacturer
2 x LJ-3600 and 1 x LJ-5400 single-tank ultrasonic cleaners
Read project record
Nizhny Novgorod, Russia
Benchtop Cleaners for an Electronics Manufacturer
12 smart benchtop ultrasonic cleaners
Read project recordInternational Supply
Project communication for customers across multiple industrial markets
LENJEX supplies industrial cleaning equipment to customers in Europe, the Middle East, Southeast Asia and South America. The international team supports requirement review, production updates, export packing, documentation and remote technical communication.
Final acceptance steps, training, spare-parts planning and service arrangements are confirmed for the actual order and destination.


