Technical details

kesitSteel security doors, internal doors and steel fire exit doors

1. Galvanized frame, 2 mm thick & wood veneered
2. Wing frame composed of 3 mm thick steel tube
3. Wing skeleton middle part, 1.5 mm thick steel omega shape
4. Central cylinder, providing a 20 steel bolt locking system plus five dead bolts, which lock the door in three directions, such that force on any 15 mm and 17mm bolt does not effect the others. Drill proof barrel, registered keys cannot be copied without authorisation from the owner, three keys supplied.
5. Hinges are special production steel, adjustable and placed in three points.
6. Frame is covered with wood finish and comes with same colour casing
7. Door handle, knob and door knocker are in a brass or chrome finish
8. Door viewer gives 180 degree view
9. High security retainer, for secure partial opening of the door (like a door chain, but far safer)
10. Inside the wing fibre glass filling provides insulation
11. On the frame, a security capsule to protect the lock system from outside
12. All around the wing frame is covered with stainless steel to secure the door and lock system
13. The inner face of the door is clean and unembellished in design.

Partition wallprojectdrawings

In order to provide maximum security and optimum strength, we apply a different fitting technique for partition based walls. Before we assembly the steel door, we use a hardwood frame. The hardwood frame goes into the main frame that is located all around the wall. The main frame provides the guide to fit the hardwood frame. This is the most important part of fitting.

The way we fit doors and frames distributes any impact force over a wide area making the door very much stronger. Our technique is to fit the hardwood frame to the main frame with eight steel bolts (each of them 10mm thick), than we tighten them to each other firmly. This is the first stage of the fitting.

In the second stage we use special expandable liquid to fill all around the frame eliminating any space. This liquid sets like rock in one hour, and stretches the frame all around it.

singledoor-1We then apply this procedure to provide full attachment to the partition, which means the door is attached to the wall all around it. This means that any force applied is distributed all around the wall. In other words, if you can break a door with 100 kg force, now you need to apply 1,000 kg or more to break it. In the third stage of fitting, we cover all this work with a reinforced steel structure to increase its strength even further. Wood cannot withstand large amounts of shock and force, but a steel door and its structure can take the shock and absorbs it instantly. This means that before any force affects the frame, the steel structure is going to dissipate most of it.

Basically we employ physics, proper fitting techniques and great materials.