Process No.9 water drain hole formation

The next process is to create the hole for the water drain. This is done by a machine that punches a hole in the sink. The sink is placed on a conveyor belt and goes through the machine. The machine is programmed to punch a hole in the sink at the correct location.

This process is similar to the previous process. In this case, we will use a 100T hydraulic press machine, similar processes as step No.8 will be done. The sink will be placed and aligned with the die, the machine will automatically complete the following process. We normally use a Ф35 or Ф28 die to form our sink holes.

For quality control, the very first few sinks will be sampled and measured. After that, each 1 per 50 sinks will be inspected to ensure no deformation around the holes and the notch burr height will not be more than 0.2mm. Also, our QC team will check the sink to see if there are any burrs around the holes. They will also measure the sink to make sure that the holes are the correct size and shape.

Process No.10 water overflow hole formation

The next process is to create the hole for the water overflow. This is done by a machine that punches a hole in the sink. The sink is placed on a conveyor belt and goes through the machine. The machine is programmed to punch a hole in the sink at the correct location.

This process is similar to the previous process. In this case, we will use a 100T hydraulic press machine, similar processes as step No.8 will be done. The sink will be placed and aligned with the die, the machine will automatically complete the following process. We normally use a Ф12 or Ф16 die to form our sink holes.

For quality control, the very first few sinks will be sampled and measured. After that, each 1 per 50 sinks will be inspected to ensure no deformation around the holes and the notch burr height will not be more than 0.2mm. Also, our QC team will check the sink to see if there are any burrs around the holes. They will also measure the sink to make sure that the holes are the correct size and shape.

Process No.11 surface treatment

After the sink has been formed and all of the holes have been punched, the sink goes through a surface treatment process. This is done to remove any burrs or sharp edges from the sink. The sink is placed on a conveyor belt and goes through a series of machines. Different surface treatments can be applied to the sink to finish its surface. Most sink manufacturers will do the same few steps when they are doing the surface treatment step of the sink’s finish work.

• The first triangular sanding machine uses a sand brush to smooth the surface and underside of the kitchen sink so that any burrs from the sink will be removed.

• The next machine in the process uses a series of rotating brushes. These remove any burrs and also change some aspects of the receptacle's surface, depending on the needs of the final product. A grinding wheel is used to even out the surface of the sink.

• The third machine in the process uses a stream of compressed air to remove any remaining particles from the sink.

• The last step is polishing. The sink is placed on a conveyor belt and goes through a series of polishing wheels. These wheels polish the sink to give it a shiny finish. After the sink has gone through the surface treatment process, it is ready for the second time cleaning.

Process No.12 second cleaning

After the sink has gone through the surface treatment process, it is ready for the second cleaning. The sink is placed on a conveyor belt and goes through a series of cleaning machines. These machines remove any particles or debris from the sink. The sink is then dried with a dryer.

In this process, Cresheen’s pressed sink will go through a washing and drying line which is similar to the first cleaning process. QC will ensure the basin that comes out of the washing and drying line is free from bumps or scratches. After the sink is dried, it is ready for the next process.

Process No.13 attaching sound-deadening mats

One of the main reasons that people choose to install a kitchen sink is so that they can have a place to do the dishes. When the sink is full of water and dishes, it can be very noisy. This can be a problem, especially if you have children or live in an apartment complex.

One way to help reduce the noise level of a kitchen sink is to attach a sound-deadening mat to the sink. A sound-deadening mat is a piece of material that is placed between the sink and the countertop. This mat helps to absorb some of the noise that is created when water and dishes are in the sink.

There are many different types of sound-deadening mats available on the market. Some are made from foam, while others are made from rubber. You can also buy sound-deadening mats that are made specifically for kitchen sinks. These mats are usually made from foam or rubber and they have a design that allows them to fit around the sink’s curves and holes.

If you are thinking about installing a kitchen sink, you should consider adding a sound-deadening mat to help reduce the noise level.

In Cresheen, the sink is now ready to have the sound-deadening mats attached. The sink is placed on a conveyor belt and goes through this process. Before attaching, once again, the sink will be inspected according to standards, and then the sink will be attached with a sound-deadening mat.

Process No.14 Laser Marking

After the sink has been attached with a sound-deadening mat, the next process is laser marking. In this process, a laser is used to etch a design or logo into the sink. This is usually done on the underside of the sink so that it is not visible when the sink is installed.

Our client’s brand or Cresheen’s brand plate will be laser marked on the sink, done by the laser machine automatically. QC team will randomly check if the surface is clear, with even colour, and it will have no coarse lines and will not fade when rubbed vigorously.

Laser marking is a permanent way to mark the sink with a design or logo. This helps to identify the sink and also makes it more attractive. After the sink has been marked, it is ready for the next process.

Process No.15 Anti-Condensation Coating

After the sink has been laser marked, the next process is to apply an anti-condensation coating. This coating helps to prevent water from condensing on the sink. This is important because it can help to reduce the noise level of a kitchen sink.

We normally apply a thick layer of coating to the bottom of the sink, according to Chinese National Standards (>0.5mm) which has an effect of anti-condensation and further reduces any running water noise. Some of the clients do not want this layer, Cresheen can for sure customize this process as per requirements. In this process, we ensure that the coating is uniformly painted without any tearing of paint. The sink is then allowed to dry before the next process.

Process No.16 Packaging

Last step! Cresheen sinks, for example, come with cardboard boxes, plastic protective bags, foam bricks, foam corner protectors, as well as a series of instruction guides. These are surely fully customisable. After the sink has been coated with anti-condensation paint, the next process is packing. In this process, the sink is carefully packed into a box or crate. This is important because it helps to protect the sink during shipping.

All of our sink products have gone through a series of "dropping test" to avoid breakage during long-distance transportation.

After the sink has been packed, it is ready to be shipped to the customer. Congratulations! You have now learned about the process of making a stainless steel kitchen sink. Thanks for choosing Cresheen!

Cresheen is a professional sink supplier and manufacturer with more than 24 years of industrial experience. We are dedicated to providing high-quality kitchen sinks at wholesale prices. If you are interested in our products, please contact us today.

Conclusion

In short, to make a pressed kitchen sink or a drawn kitchen sink, sheets of stainless steel are first cut to size and then formed into the desired shape. A die is used to press the steel sheets into the sink’s final shape. Once the sink has been pressed, it is then welded together at the seams, followed by cleaning and packaging.

Cresheen, as a sink supplier with more than 24 years of experience, we have successfully cooperated with many customers from all over the world. Our strict quality control system and perfect after-sales service have won us a good reputation in the sink industry. We firmly believe that only by continuously providing high-quality products and services to our customers can we achieve mutual benefit and win-win results!