The Blum AVENTOS HF 21F8000 grey cover-cap set provides the left and right mechanism covers for an older legacy HF SERVO-DRIVE bi-fold lift installation. The handed covers finish the cabinet-side lift-mechanism housings and accommodate the SERVO-DRIVE configuration.

Part 21F8000 is a distinct legacy product and must not be confused with the later 21F8020 cover-cap family. Match the part number, barcode, system generation and physical fittings before replacing or completing an existing installation.

For legacy AVENTOS HF SERVO-DRIVE

This cover set belongs to the original AVENTOS HF electrically assisted bi-fold system. It is not an AVENTOS HF top cover set, and visual similarity to newer covers does not establish compatibility.

The covers are finishing components for the mechanism housings. They do not provide lifting force or electrical drive and do not convert a standard mechanical HF lift into a complete SERVO-DRIVE installation.

Verified product identification

• Manufacturer: Blum
• Blum part number: 21F8000
• Stock code: HI21F8000
• Barcode: 9002617780437
• Component: left/right SERVO-DRIVE cover-cap set
• System: legacy AVENTOS HF
• Colour: grey

Pack contents require confirmation

The left and right grey covers are verified by the current product title. The product image depicts additional switch and accessory components, but their inclusion has not been verified from written pack data. Confirm the physical pack or Hart purchasing record before expanding the contents list.

Do not borrow the documented contents of the later 21F8020 set. Although both products relate to legacy HF SERVO-DRIVE covers, they are separate part numbers and may represent different component generations.

Product details

What else is required?

A functioning installation requires correctly selected legacy HF lift mechanisms and telescopic arms, compatible hinges and plates, and the appropriate SERVO-DRIVE unit, cabling and power components. This cover set must not be described as a complete powered lift kit.

Replacement checks

1. Read the original cover-set or installation part number.
2. Confirm 21F8000 and barcode 9002617780437 against the Hart item.
3. Confirm the installation is original AVENTOS HF with SERVO-DRIVE.
4. Compare handed shape, switch provision and attachment points.
5. Verify the required grey finish and written pack contents.
6. Fit and commission components only to the instructions for that legacy generation.

Questions and answers

Is 21F8000 the same as 21F8020?

No interchangeability claim should be made. Hart lists them as separate products with different barcodes. Match the exact legacy part and installation.

What is definitely included?

The current title verifies left and right grey SERVO-DRIVE covers. Confirm every additional pictured component against written Hart pack data before stating it is supplied.

Is the drive unit included?

Do not claim that it is. The covers are finishing components; motors, cabling and power parts require separate verification and planning.

Will it fit AVENTOS HF top?

Do not assume compatibility. Part 21F8000 is an older legacy AVENTOS HF item, while HF top uses a different component generation.

What shade of grey is it?

The product is identified as grey. Do not assign a modern Blum colour code or RAL reference without written verification for this exact part.

Browse the Blum AVENTOS HF and HF top range for related legacy and current components.