Screw Conveyor ATMOS DRA 50 for Burner A45 and A85

Product detailed description

The ATMOS DRA 50 screw conveyor is an essential component in solid fuel heating systems, particularly for pellet burners A45 and A85. It is commonly used in residential and commercial heating applications where reliable and efficient fuel transport is required. The conveyor is designed to operate within enclosed spaces and is often integrated into boiler rooms or utility areas. It ensures a steady and controlled feed of fuel to the burner, which is critical for maintaining consistent combustion and system efficiency.

Installers and technicians working with this system must ensure that the conveyor is correctly positioned and adjusted to maintain a maximum incline angle of 45°. This helps prevent blockages and ensures smooth operation. The conveyor is typically mounted using a support leg or a chain suspension, depending on the available space. The choice of mounting method can affect the overall stability and alignment of the system.

Technical parameters

Weight	42.32 kg
Code	H0004
Brand	Atmos

The screw conveyor is available in lengths from 1700 to 5000 mm and has a diameter of 80 mm. The gearbox is rated at 40 W. These dimensions are important for determining the appropriate conveyor length and ensuring compatibility with the burner model. The maximum incline angle of 45° must be maintained to ensure proper fuel flow and prevent jamming.

Installation and connection

The installation process begins with selecting the appropriate mounting method. A support leg is included with each conveyor and must be adjusted to ensure the maximum incline angle of 45° is not exceeded. In confined spaces, the support leg can be replaced with a chain suspension, which is also included. The chain allows the conveyor to be suspended from the ceiling, providing flexibility in tight areas. During installation, it is important to ensure that the conveyor is aligned correctly with the burner inlet and that the connecting hose is taut. Misalignment or slack in the hose can lead to fuel spillage or blockages. Common installation mistakes include incorrect angle settings and failure to secure the conveyor properly, which can result in vibration or misalignment during operation.

Compatibility and accessories

The ATMOS DRA 50 is specifically designed for use with pellet burners A45 and A85. It is also compatible with a range of ATMOS boilers, including D 30 P, D 80 P, D 40 P, DC50 S (excluding 1.7 m length), and D 50 P. The conveyor is supplied separately but is an essential part of the burner system. When ordering, ensure that the correct length is selected to match the installation requirements. Related products include the ATMOS A 45 burner and the ATMOS A 85 burner with pneumatic cleaning.

Technical background for designers

The screw conveyor operates by rotating a helical screw inside a cylindrical housing, which moves the fuel along the length of the conveyor. The motor and gearbox provide the necessary torque to drive the screw. The housing is typically made of durable materials to withstand the abrasive nature of pellet fuel. The conveyor must be integrated into the overall fuel delivery system, ensuring that it aligns with the burner inlet and that the flow rate matches the burner's requirements. The angle of inclination and the length of the conveyor directly affect the system's efficiency and the wear on the components.

Service and operation

Regular inspection of the conveyor is necessary to ensure smooth operation. Check for signs of wear on the screw and housing, and ensure that the motor and gearbox are functioning correctly. The conveyor should be cleaned periodically to remove any residual fuel or debris that could cause blockages. The support leg or chain suspension should also be inspected for stability and adjusted if necessary. No specific service intervals are provided in the brief, but routine checks are recommended to maintain system performance.

Frequently asked questions

Can the ATMOS DRA 50 be used with burners other than A45 and A85?
No, it is specifically designed for use with burners A45 and A85 and is not compatible with other models.

What is the maximum length available for the conveyor?
The maximum length available is 5000 mm, with options from 1700 to 5000 mm in increments according to the manufacturer's specifications.

Can the conveyor be mounted in tight spaces?
Yes, in confined spaces, the standard support leg can be replaced with a chain suspension, which allows the conveyor to be hung from the ceiling.

What is the angle of inclination for the conveyor?
The maximum angle of inclination is 45°, which must be maintained to ensure proper fuel flow and prevent blockages.