To improve heat and sound insulation, the covering may be insulated: a sheet of high-density polystyrene is inserted between the external and the internal ribbed plate.

Thicker covering with 8/10 thick galvanised sheet steel.

Standard overhead door: the intruder, after cutting of sheet metal, sees the release lever and opens the overhead door.

Overhead door equipped with Lock Protection: the intrusion is “removed” from the lock, he doesn’t see the release lever and therefore he doesn’t open the overhead door.

AUTOMATION @MOTION DE NARDI 2017 24V
Pratic 16 Model
Automation on board frame consisting of a 24V DC echocycle gearmotor with encoder, with a maximum power of 57W, for opening and closing door. A servant mechanism operated by a non-reversible gearmotor powered by 24V DC of the maximum absorved power of 45W, allows the first opening phase of the door and ensures an efficient closure. The new generation unit control, entirely developed by De Nardi, manages the gearmotors and the synchronism of the movements; it’s equipped with an intuitive diagnostic failure and can have the rescue buffer batteries for operation in absence of network electricity. All the electronic and electromechanical components described above, even in the presence of a pedestrian door, are located on the crossbeam and on one of the lateral uprights. The compactness of the components combined with the absence of return shafts and reaction arms, allow to the entire system to have no protrusions, ensuring a smooth passage and a design that is extremely clean and pleasant. The mobile door is supplied complete with anti-shock rubber to protect the 3 sides.
N.B. Not available for the non projecting version

SINGLE AUTOMATION @MOTION DE NARDI 2017 24V
Pratic Special Model
Automation on board frame consisting of a 24V DC echocycle gearmotor with encoder, with a maximum power of 57W, for opening and closing door. A servant mechanism operated by one of two non-reversible gearmotor powered by 24V DC of the maximum absorved power of 45W, allows the first opening phase of the door and ensures an efficient closure. The new generation unit control, entirely developed by De Nardi manages the gearmotors and the synchronism of the movements; it’s equipped with an intuitive diagnostic failure and can have the rescue buffer batteries for operation in absence of network electricity. All the electronic and eletromechanical components described above, even in the presence of a pedestrian door, are located on the crossbeam and on one of the lateral uprights. The compactness of the components combined with the absence of return shafts and reaction arms, allow to the entire system to have no protrusions, ensuring a smooth passage and a design that is extremely clean and pleasant. The mobile door is supplied complete with anti-crushing mechanical rib to protect the 3 sides.
N.B. Not available for the non projecting version and intensive condominium use.

DOUBLE AUTOMATION @MOTION DE NARDI 2017 24V
Pratic Special Model
Automation on board frame consisting of two 24V DC echocycle gearmotors with encoder, with a maximum power of 57W, for opening and closing door. A servant mechanism operated by two non-reversible gearmotors powered by 24V DC of the maximum absorved power of 45W, allows the first opening phase of the door and ensures an eccicient closure. The new generation unit control, entirely developed by De Nardi, manages the gearmotors and the syncronism of the movements; it’s equipped with an intuitive diagnostic failure and can have the rescue buffer batteries for operation in absence of network electricity. All the electronic and electromechanical components described above, even in the presence of a pedestrian door, are located on the crossbeam and on one of the lateral uprights. The compactness of the components combined with the absence of return shafts and reaction arms, allow to the entire system to have no protrusions, ensuring a smooth passage and a design that is extremely clean and pleasant. The mobile door is supplied complete with anti-crushing mechanical rib to protect the 3 sides.
N.B. Not available for the non projecting version and intensive condominium use.

The “GEARMOTORS DN 24” are installed exclusively on overhead doors De Nardi. Two leading companies that provide a service to the highest of quality and safety. The innovative automation device De Nardi is the thinking mind of the whole system: it manages the speeds to reduce the mechanical stress on the motors and gates; it segnals the archievement of the working cycles limit to require the maintenance; it also deals with the management of a long series of function, including: lock and unlock buttons, opening by a photocell, reversal of the motor controlled by the anti-crushing rib, photocells buffer batteries for emergency operation in the event of a power failure.

1 Motor block
2 Photocell
3 Mechanical rib
4 Automation device
5 Supply from breaker switch
6 Internal pushbutton
7 Radio receiver
8 Flashing light
9 Antenna
10 External key selector
11 Two-channel transmitter or four-channel transmitter

In the model Pratic, the overhead door is automated with one engine. Automation consists of one or two electromechanical locks with motor 230V A.C. and high resolution encoder, connocted to the overhead door by two telescopic arms and equipped with:
-limit switches for opening and closing
-internal and/or external emergency release (commanded from the lock) for the handling in case of absence of the mains voltage.
The automation is supplied wired for the devices to the side described, with junction box to fix to the wall on the right side (internal view) and complete with power cable “schuco” type.
The electronic control unit has a detection system of the stress profile and self regulation of engine delivered to the stress profile and self regulation of engine delivered to the engine during the cycle of opening and closing in order to limit the impact forces in compliance as provided by law.
It’s also possible the automatic timed closing and the regulation of the engine power.
The mobile door is supplied with a bumper rubber to protection of the three sides in the model 12 and 16. The mobile door is supplied with a mechanical anti crushing rib to protection of the three sides in the model SPECIAL

Automation device on board, with courtesy light (max 25W) and button of opening/closing, equipped with various outputs for connecting peripherals such as:
- key selector
- photocells
- flashing light 230V
- external courtesy light (maximum power 250W, no neon)
- base for two-channel receiver radio 
- mechanical anticrushing rib to protection of the three sides

The drive unit with chain drive is installed on the ceiling at the center of the door. The 24V gearmotor De Nardi, is commanded by an incorporated electronic control unit.