Electric Flap Control for Basement: 2.6x0.9m Ash Wood,100-120kg, Self-Locking, Dual Access, Hinges

Hi,

I need to make an electrical control for a cellar flap.

Flap measuring 2.6 x 0.9 metres. Made of ash wood with a polystyrene insert, the pre-calculated weight of the flap will be in the range of 100-120 kg.
The flap is to be a closure between the pantry and the entrance to the cellar, you can see this in the photo:


The photo shows in red where the hinges will be installed.

The flap is to be opened and closed electrically from two locations: the pantry side and the basement side. It is also important that the mechanism is self-locking when opened, i.e. that the flap does not fall on someone's head, e.g. in the event of a power failure/component failure. The whole thing should open quite smoothly (a subjective term, but I would not like to wait, for example, 60 seconds for it to be possible to enter).

I am considering two solutions:
1. an electric motor mounted above the hinges and, using rollers, a cable that would be mounted from the top of the flap. Opening and closing would be done by winding the cable onto a roller. The opening and closing is performed by winding the cable onto a roller.
2. a linear actuator mounted on the underside of the flap. From what I have looked at the specifications, there are actuators that are self-locking.

As I don't have much practical experience in designing such solutions, I would be grateful for any suggestions on how to solve the problem and for help in selecting components. Or does anyone have any other ideas/concepts for implementing this?

Best regards

m.zych wrote:

2.6 x 0.9 meter flap

The height of the room allows it to be raised vertically?
Isn't it better to make it open sideways to the left wall (if it is not a load-bearing wall)?

It is necessary to perform balancing the damper's weight / safety / and to overcome only friction forces.
That is, manual opening and closing.
Emergency opening option.
The actuator may be weaker.
Cable system with weight or spring as in fast gates.

Or maybe a roller blind / roller shutter would be suitable.

You can also move the entire hatch horizontally.

Medium answer. There are other aspects, like space, like visual considerations. Making such a flap is not a problem. An extendable actuator, a lifting arm for the flap. And in case of a power outage or failure you grab the flap and lift it up manually.