Complete the visible finish and switch arrangement of a compatible powered bi-fold lift with the Blum AVENTOS HF 21F8020 SERVO-DRIVE cover-cap set in light grey. The handed covers conceal the lift-mechanism housings on both cabinet sides, while the supplied switches and distance bumpers provide the documented accessories for this cover set.

This genuine Blum package is intended for the original AVENTOS HF generation. Its neutral light grey finish suits matching mechanism hardware and makes the set suitable for a new specified installation or an exact replacement. Check the system generation, part number, barcode and colour before ordering.

Cover set for powered AVENTOS HF

AVENTOS HF operates a two-part front that folds as it rises, helping keep tall bi-fold fronts accessible. Part 21F8020 is the dedicated cover-cap set for an HF installation using SERVO-DRIVE. It differs from the mechanical 20F8020 cover set, Hart's earlier 21F8000 item and the component system used by AVENTOS HF top.

The cover caps finish the mechanism housings and the included switches belong to the compatible SERVO-DRIVE arrangement. This set contains no drive motor, power supply or load-bearing lift hardware and cannot create a complete powered installation on its own.

Supplied in the set

• 1 × left SERVO-DRIVE cover cap
• 1 × right cover cap
• 2 × branding elements stamped with the Blum logo
• 2 × SERVO-DRIVE switches
• 6 × Blum distance bumpers, 5mm diameter

Lift mechanisms, telescopic arms, the drive unit, distribution cable, power supply and other electrical components must be selected separately.

Product specifications

Compatibility checklist

1. Identify the lift as the original Blum AVENTOS HF bi-fold system.
2. Confirm that the installation is configured for SERVO-DRIVE.
3. Match the required manufacturer part number to 21F8020.
4. Check Hart SKU HI21F8020 and barcode 9009494504859 for this light-grey version.
5. Compare the cover shape, handing, switch positions and attachment points.
6. Do not assume fit with AVENTOS HF top or with the earlier 21F8000 set.

Planning the remaining components

A working powered lift also needs AVENTOS HF mechanisms and telescopic arms selected for the cabinet height and front weight, suitable hinges and mounting plates, plus the correct SERVO-DRIVE unit, cabling and power components. Use the applicable Blum planning and installation documentation for the exact cabinet configuration.

Frequently asked questions

Is this a pair of covers?

Yes. The set includes one left SERVO-DRIVE cover cap and one right cover cap, plus two separate Blum-logo branding elements.

Are closing switches supplied?

Two SERVO-DRIVE switches are included, together with six distance bumpers measuring 5mm in diameter.

Does it include the SERVO-DRIVE unit?

No. The drive unit, electrical supply and connecting components are separate and must be planned for the installation.

Is 21F8020 interchangeable with 21F8000?

Do not assume so. Hart lists them separately with different barcodes. Match the exact mechanism generation and original part.

Can it be used on standard mechanical AVENTOS HF?

This set is specified for SERVO-DRIVE and includes its switches. Standard mechanical HF uses a different cover-set part number.

Does it fit AVENTOS HF top?

No compatibility claim should be made. HF top belongs to a newer component generation and uses different covers.

Explore the Blum AVENTOS HF and HF top range for related lift components.