Heavy Duty Steel Weld-On Hinges Provided by HDC

A bullet hinge is a particular kind of hinge that takes small space and does look like a bullet. It is generally made out of three parts. One part is called the male part, another is the female part and the third part is a bushing that balances these two parts.

Bullet hinges are particularly used for metal frames, cabinets, and metal doors. For beautification purposes, they have been in use for a long time. You can find their existence where beautification is equally important to the effectiveness of hinges.

Weld-on hinges are a general categorization of hinges. You will find that most of the hinges are welded on hinges except the hinges you use on wooden frames. 

The hinges need to be welded on metal frames like metal doors, metal cabinets, all are actually weld on hinges. The mounting of a weld on the hinge takes welding on the metal part. That is why it is called a weld-on hinge. Bullet hinges, Butt hinges, Lift-off hinges, all are examples of weld-on hinges.

Weld-on hinges can be made out of different materials. There are vast options to create weld-on hinges according to the space and surface you have. 

But because of corrosion and material cost-efficiency, you can find that most of the weld on hinges are made out of:

• Aluminum
• Steel
• Stainless steel

Among all materials, stainless steel weld on hinges is the most popular one. They are very easy to design and good for welding. Aluminum and Steel weld on hinges are also very good to work with.

Most of the hinges you have seen already have weld on hinges. They are particularly used on metal frames, metal doors, and anywhere metal surfaces are used and you need a hinge on it.

Some of its applications are as follows:

• You can find the bullet hinges on most metal doors. They need less space and are less visible while you work with them. From 20mm metal cabinet doors to heavy-duty metal frame doors for households, you can find hinge welding.
• Electrical doors for cabinets, mechanical doors for cabinets, all over, you will find metal frames and metal sheets. That is why you have to weld the hinges on them.
• Laboratory cabinets, especially those metal lab cabinets where you always need to keep clean and need durability for the hinges, you need to weld the hinges with the frames.
• Weld-on hinges, especially bullet hinges, are often used for interior decoration purposes, where you need to hide the existence of hinges as much as possible. So, home and kitchen cabinets often use this kind of hinge.

Weld on bullet hinges are basically the bullet hinges with welding. Bullet hinges do look like bullets. The color may vary depending on the material.

The metal bullet hinges must be welded on the metal frames and doors. The metal frames and doors can be household doors, cabinet doors, lab cabinet doors, etc.

A bullet hinge takes minimum space to move and install. That is why it is one of the most popular types of weld on hinges.

• Heavy-duty Gates

Steel weld-on hinges are ideal for handling heavy duty gates. The exact weight each hinge can carry varies from design to design. However, you can share your requirements with HDC and we can develop the hinge specific to your load requirements. Usually, these steel hinges can handle door weights from 1,000 lbs. to around 40,000 lbs. and radial loads from 400 lbs. to around 25,000 lbs. You can share your requirements and we will suggest the best hinge for you. 

• Neutron Shielding Doors

Neutron shielding doors are doors that lid the radioactive material inside. It is often used in medical and research facilities. Also, steel weld-on hinges are ideal for fitting of neutron shielding doors. This is because steel contains the radioactive radiation and also provide a durable operation to the door. 

• Trailers and Tractors 

Steel weld-on hinges are ideal for trailer gates and doors. These doors are heavy and require hinges that can not only retain the load of the gate, but also work effectively for long time. Carbon steel is also resistant to corrosion, therefore, are ideal for application in the trailers and tractors. 

• Military and Defense Industry

Carbon steel weld-on hinges are very common in military and defense industry. Tank hatchets, Aircraft/Helicopter door fittings, and submarine hatchets often use steel hinges for reliability and durability. These steel hinges are long lasting and do not corrode easily despite exposure to tough weather conditions and terrain. 

• Ship Building and Mining

Ship building and mining are two areas where there is extreme humidity and weather effect. Steel weld on hinges are ideal for such scenario. Therefore, these hinges have wide applications in the ship building and mining industry. 

• Vault Doors

Vault doors are heavy and need to be durable. Steel weld-on hinges provide the required durability and strength to the heavy vault doors to function properly. 

HDC uses mild steel and carbon steel for manufacturing of weld on hinges. In addition, it uses brass bushing, brass or steel pins. However, these options are available to our clients and the final selection is based on their choice.  In case, you want to request for some specific type of steel or alloy for manufacturing, we can also arrange that for you. 

You can weld hinges on metal surfaces. Using the following steps you can easily install a bullet hinge with welding.

• Step – 1: At first identify the parts of the bullet hinge. A bullet hinge consists of three parts – a pin or male part, a female or part with a hole, and a bushing for balancing the male and female part.
• Step – 2: Horizontally put the joining workpieces on the working table or the flat surface.
• Step – 3: Now you need to align the male part of the bullet hinge vertically straight with the door and the metal frame. For your reference, the male part goes up and the female part goes down. You can use a scale, a rod, and two clips for finding the vertically straight position for the hinge.
• Step – 4: Now if you are satisfied with the vertical alignment and the gap between the hinge and the metal door and frame, then tack weld at both sides. Usually, four points are welded. Both sides of the upper point, and both sides of the lower point.
• Step – 5: At this point, you can remove the tool you have used for aligning the male post part of the hinge and fully weld head to toe of the hinge at both sides.
• Step – 6: Adjust the bushing and put the female part.
• Step – 7: Repeat step – 5 for the female part.

In this way, you can install a weld on hinge. 

You can fit a bullet hinge between two metal parts by aligning them on a plain surface. 

First, put the male part vertically straight in between the two workpieces with a tool. Then when the gap and the straightness are aligned, then tack weld the upper portion and the lower portion.

After that, remove the tool and fully weld head to toe of the male part with the frame and the door.

Put the bushing and the female part.

Then weld the female part head to toe at both sides for the frame and the door.

Durability, strength, and security. Since they are welded directly onto the surface, they are less likely to be tampered with or removed, making them ideal for high-security applications.

You can choose an adjustable one if needed, it mainly depends on your requirement.

Yes, weld-on hinges come with a plain surface, you can be painted to match the color of the application,

The expected lifespan of weld-on hinges will depend on the specific application and environmental factors such as exposure to moisture or harsh chemicals.

Yes, easy to maintain. Regular lubrication and cleaning can help extend their lifespan, Regularly inspect them for signs of wear and damage.

You can weld them directly onto the surface of the application.

Common mistakes include not welding the hinges securely enough or welding 

them in the wrong position, which can lead to misalignment or binding.

Common problems with weld-on hinges include rust, corrosion, wear, and misalignment.

Troubleshooting weld-on hinge problems may involve inspecting them for signs of wear or damage, lubricating them, or adjusting their position.