Overview of Factory Inspection Process

Before you officially visit the factory, we need to make some preparations. So we can first go to the International Business Department, where we can have a brief introduction and take a rest at the same time.

During the break, we can further communicate and introduce LUYU's history, culture, product range, market distribution and commitment to quality.

Then, we will go to the factory's production area together. Before entering the production area, we will briefly explain the safety regulations and precautions of the production area, as well as the inspection sequence and key areas of focus later. Finally, it is particularly important to emphasize the significance of wearing safety helmets.

Laser Cutting

The entire vehicle structure components are made through laser cutting. They can cut 30mm thick steel plates. The laser cutting process has high precision and excellent smoothness. The precision reaches 0.1 millimeters.Other competitors can only achieve laser cutting on 20mm thick steel plates. For thickness over 20mm, they can only use flame cutting. The disadvantages of flame cutting are: ① High temperature causes the steel plate to deform and become brittle ② The cutting accuracy is very low ③ The cutting speed is slow.

Advantages of laser cutting

① High speed ② Capable of cutting various complex shapes ③ Non-contact processing method reduces thermal influence, with almost no thermal deformation, avoiding the problem of secondary processing. ④ The cut components have extremely small errors, ensuring the precision of component assembly, the balance of the entire vehicle, and the consistency of quality control.

CNC  Machining  Center

The CNC machining center is highly efficient and flexible, with high precision and the ability to maintain a high consistency in processing components. It integrates mechanical equipment with a CNC system and is particularly suitable for processing complex parts.

Manual Assembly

The frame and the boom of the loader are structurally complex, besides, they have large dimensions. For manual assembly, the positions can be accurately determined before welding, and precise connections can be made.

Moreover, since spot welding can be carried out simultaneously at multiple positions of the components, it can disperse the welding stress, reduce the phenomenon of stress concentration during the welding process, and lower the risk of component deformation. This process helps to ensure the stability of welding quality and the reliability of the product.

Robotic Welding

We also use Panasonic intelligent robots for welding. The robots first conduct ultrasonic testing to inspect the steel plates. If there are any damages on the plates, the robots will stop working and issue an alarm.

We stipulate robots run two rounds of welding, and the weld seam should be 1 cm wide. In order to ensure that each weld seam achieves the optimal welding quality.Advantage: During the welding process, the robot does not shake, so there will be no false welding, thus ensuring that the weld seam is smooth and flat.

Surface  Shot Blasting

This is a kind of surface treatment. Shot blasting machine will remove the welding slag, oxide layer and other impurities on the surface of the workpiece. It can also enhancing the adhesion of paint application, increasing the hardness and corrosion resistance of the surface, and facilitating subsequent processing. We use 0.8mm fine steel grit, and a multi-nozzle, all-round, no-corner machine for shot blasting. The shot blasting time is longer, and the impurity removal effect is better.

At the same time, shot blasting can also eliminate thermal stress. During the laser cutting process, due to the temperature difference, the volume of the steel plate expands and contracts unevenly. This causes thermal stress, which can lead to deformation of the steel plate. During the shot blasting process, the steel sand strikes the surface of the steel plate, eliminating the thermal stress and reducing the deformation of the steel plate.

Painting workshop

Drying: First, heat the structural components to remove moisture, and then proceed with the painting process to enhance the adhesion of the paint. Many competitors omit this step in an attempt to save costs.

Cleanroom lifting and painting: Reduce contact with impurities, remove dust, dehumidify, prevent rust, make the paint surface smooth, and reduce bubbles.

Painting:Our paint finish consists of three layers: a rust-preventing primer, a mid-coat, and an automotive topcoat.

To achieve a better protection effect for the loader, we specially carried out eight coats of spraying: one layer as the base, one layer for rust prevention, two layers of primer, two layers of mid-coat, and two layers of topcoat.

Structural Parts Entrepot Storage

There are 4 automatic assembly lines in our factory, with a maximum daily production capacity of 300 units. We implement a system where each worker is assigned to a specific position to ensure precise operation. These series of optimization measures not only enhance production efficiency but also effectively reduce the overall production cost. We also adopt an advanced ERP production management system to achieve full control over production scheduling and quality management.

Wheel Digging & Micro Excavation assembly line

Attachment Transit Depot