The Difference Between Pressure-Welded Steel Gratings and Manual-Welded Steel Gratings

People who buy steel gratings often have a misunderstanding that pressure-welded steel gratings are produced by machines. Actually, that's not the case. Pressure-welded steel gratings include manual-welded steel gratings and machine-welded steel gratings, which are generally marked with a capital "W". So what exactly is the difference between the two? Let's talk about it today.

The difference between pressure-welded steel gratings and manual-welded steel gratings:

Pressure-welded steel gratings: Also known as machine pressure-welded steel gratings, they are mainly welded by high-voltage resistance welding machines. It is necessary to place the bearing flat steel on a specific mold, then arrange the cross bars evenly on the flat steel, and press them into the flat steel through pressure and spot welding, thus making the welding points very firm. The overall production efficiency of machine pressure-welded steel gratings is very high, and the produced appearance is very beautiful, but the welding is not as strong as manual welding.

Manual pressure-welded steel gratings: Manual welding requires first punching holes in the flat steel, placing the crossbars at the center of the holes for spot welding, and welding each contact point between the crossbars and the flat steel, so the welds are very firm. The overall process of manual pressure-welded steel gratings is very flexible, with extremely strong welds, and even some special shapes and parts can be taken into account. However, it takes more time and the labor cost is higher.

What are the advantages of pressure-welded steel gratings?

Pressure-welded steel gratings are usually made of Q235A, Q235B and stainless steel. They have a very trendy and modern overall appearance and strong rust resistance. Moreover, they have high strength, so when used in places with heavy loads, there is no need to worry at all. The specifications and parameters can be customized according to requirements. Pressure-welded steel gratings are widely used, mainly in municipal construction and industrial plants. They have strong load-bearing capacity, good ventilation, and are easy to clean.

Installation process of pressure-welded steel gratings:

-Directly weld the finished steel gratings to the supporting steel structure, and apply 2 coats of Fuxin powder paint on the welded parts, mainly for anti-corrosion purposes.

-Special installation clips can be used for installation without damaging the galvanized layer of the steel gratings.

-The installation gap of steel gratings is generally 100 millimeters.

-The installation of steel gratings needs to be firm and reliable to avoid loosening. If there is vibration in the application scenario, the welding installation method will be more reliable.