Polishing flat stainless steel sheets correctly is essential to achieve a bright, evenly smooth finish while enhancing both the aesthetic value and durability of the material during use. This is a critical process across various industries, including mechanical engineering, interior manufacturing, electronics, and stainless-steel equipment production.
Let’s explore with LEKAR the powerful tools that can support this demanding and technically challenging polishing stage.
1. What Are Stainless Steel Sheets? Applications and Polishing Methods for Flat Stainless Steel Sheets
Stainless steel sheets are stainless steel products supplied in the form of large, flat surfaces. This material is widely used in interior and exterior decoration, architecture, and also serves as raw material for manufacturing various stainless steel items.
The surface of raw stainless steel sheets often lacks aesthetic appeal and must undergo multiple finishing processes (stainless steel polishing) to achieve the desired appearance, such as: hairline finish, bright polish, matte polish, and mirror finish. Among these, mirror-polished stainless steel offers the highest aesthetic quality and is widely used in decoration and consumer products. Typical applications of mirror-finished stainless steel sheets include household tools, kitchenware, small mirrors, and construction materials.
Polishing stainless steel sheets is a finishing process that enhances the brightness and visual appeal of the material, creating an elegant, modern, and luxurious look for any space.
Flat Stainless Steel Sheets (Illustration)
2. Flat Stainless Steel Sheets: Unexpected Challenges in Processing
The process of polishing stainless steel sheets requires specific sequential steps, skilled operators, and appropriate machinery. Modern polishing procedures can achieve finishes ranging from mirror polish to hairline finish, the standard scratched polish of the material.
Depending on the intended use, the polishing process may aim to produce a fully finished polished product or serve as a pre-treatment for other processes, such as electroplating or decorative surface coating.
Polishing stainless steel sheets manually presents several drawbacks:
- High labor requirements: Manual methods require many operators.
- Increased processing time: Longer processing leads to delayed orders, higher material consumption, and faster wear of abrasive materials without guaranteed results.
- Inconsistent product quality: The final finish heavily depends on the skill of the operators, leading to variability across products.
Manual Polishing of Flat Stainless Steel Sheets
3. Industrial Flat Stainless Steel Polishing Machines – A Modern Trend in Metal Surface Finishing Technology
With continuous advancements in science and technology, many types of machines are gradually replacing manual labor. Among them, flat stainless steel grinding and polishing machines have become widely used in the metalworking industry of developed countries such as Taiwan, Germany, and Japan.
Advantages of Flat Stainless Steel Polishing Machines:
- High-quality finish: The machine can produce products with varying levels of polish, including hairline, striped, scratched, matte, and mirror finishes, depending on the abrasive media used, such as polishing wheels, layered abrasive wheels, flap discs, felt wheels, or polishing pads.
- Versatile material compatibility: The machine works with a wide range of abrasive materials and can process different metals, including stainless steel, steel, aluminum, and zinc.
- Intelligent PLC control: Equipped with a smart PLC system, the machine allows users to set polishing modes according to their requirements.
- Imported from reputable suppliers: The machines are fully imported from trusted manufacturers, such as Taiwan and Shanghai, ensuring high quality and reliability.

CNC surface grinding machine with a reciprocating worktable
4. Introduction to the 304 Hairline Stainless Steel Polishing Process Using a Surface Grinding Machine – Fast, Safe and Efficient for High Productivity
Step 1: Start the Machine
1. Check the power supply voltage.
2. Check and ensure that all safety devices, such as the emergency stop button, cross-feed switch and limit switches, are not active.
3. Adjust the height of the grinding wheel according to the thickness of the workpiece. For hairline finishing, a non-woven wheel combined with coarse polishing compound is typically used.
Step 2: Set Up the Operating Program
4. Start the polishing head.
5. Start the cross-feed movement of the worktable.
6. Start the longitudinal movement of the worktable.
Step 3: Monitor the Operation
Observe the machine continuously to detect any irregularities. If any abnormal condition occurs, use the emergency stop button immediately to shut down all motors.
Step 4: Shut Down the Machine
After the workpiece has been completely processed, perform the following steps to stop the machine.
1.Wait for the worktable to return to its initial position, then stop the longitudinal feed motor.
2. Press the cross-feed stop button to stop the cross-feed motor.
3. Press the grinding wheel stop button to stop the wheel motor.
4. Turn off the main power supply.
Refer to the following video for more details.
5. Be the first to experience this outstanding Flat Stainless Steel Polishing Technology with LEKAR GROUP!
With over 15 years of experience in the metal surface polishing industry, LEKAR GROUP is proud to be a pioneer in applying surface grinding technology for metal finishing.
The price of flat grinding machines varies depending on model, type and size. For the most accurate information, please contact our hotline for prompt consultation and support.
At LEKAR, you will receive expert advice on advanced technologies in flat stainless steel sheet grinding. We guarantee product quality and provide a warranty of up to 12 months.
Additionally, we offer fast and efficient delivery services to our customers.
For more detailed information, please contact us at:
LEKA POLISHING TECHNOLOGY JOINT STOCK COMPANY – LEKAR GROUP
Head Office: Unit 11, Louis VII Street, Louis City Urban Area, Xuan Phuong Ward, Hanoi.
Northern Branch: Lai Xa Industrial Cluster, Hoai Duc, Hanoi. Tel: 0243 7646469
Southern Branch: Nam Tan Uyen Industrial Park, Tan Hiep Ward, Ho Chi Minh City. Tel: 02873 033386
Website: danhbongkimloai.com.vn | lekar.vn








