Description
The Dedra DED7767 power float machine is the host platform for our complete pad system — a 710 W direct-drive plastering trowel with a 390 mm head running at 110 rpm, designed to take any of the seven Velcro-mounted Dedra pads for tasks from stripping through to final floating. Stocked in our power floats and sponges range, this is the machine the whole DED7767 pad ecosystem is built around.
Product Overview
The DED7767 is a single-head 230V mains-powered float machine with a direct-drive gear mechanism — no belts, no clutch, just a sealed gearbox driving the head at 110 rpm under load. That rotational speed is deliberately moderate: fast enough to float plaster and abrade surfaces effectively, slow enough that the machine stays controllable in one or two hands without skating across the work. The 4.3 kg weight is light for a 390 mm head machine, which is why the tool can be used vertically on walls as well as flat on floors.
The 710 W motor supplies enough torque to drive aggressive accessories — including the steel-bladed stripping disc — without bogging down under pressure. The Velcro mounting system on the included drive disc means changing between preparation, sanding, and finishing pads takes seconds, which is the productivity case for adopting the machine: one tool replaces hand-stripping, hand-sanding, and hand-floating across the same job.
Key Benefits
- Complete prep-to-finish workflow on one machine — strip, sand, float, all on the same head with quick pad changes.
- 710 W direct-drive motor — enough torque for aggressive stripping work without belts to slip or replace.
- 110 rpm head speed — controllable on walls and floors, fast enough to work efficiently across continuous areas.
- 4.3 kg working weight — light enough for vertical wall use, balanced for sustained work without arm fatigue.
- Three starter pads included — sponge disc, PVC primary floating disc, and Velcro mounting disc supplied in the box.
Technical Specifications
| Property | Value |
|---|---|
| Voltage | 230 V (UK mains) |
| Power | 710 W |
| Drive | Direct (sealed gearbox) |
| Head rotational speed | 110 rpm |
| Disc diameter | 390 mm head / 400 mm pads |
| Weight | 4.3 kg |
| Mounting system | Velcro (four-strap) |
| Included accessories | Sponge disc, PVC primary floating disc, Velcro mounting disc, screwdriver, electrographite brushes |
Application & Compatibility
The DED7767 covers a wide range of plastering and rendering tasks depending on the disc fitted. With the DED77675 steel-blade stripping pad it removes paint, wallpaper, plaster nibs, and bonded coatings during preparation. With the grid 16 and grid 24 sanding pads it refines the surface in coarse-then-fine passes. With the DED77671 polyurethane foam pad it floats and smooths internal lime cement and gypsum plaster, and with the DED77674 polystyrene pad it finishes external thin-coat silicone and acrylic render textures.
The machine ships with three starter pads: a sponge disc, a PVC primary floating disc (the same as the standalone DED77670 plastic pad), and the Velcro DED77670 mounting disc that all add-on pads attach to. The power floats for render finishing guide covers pad selection logic across the full workflow.
Application Notes
For the cleanest working result, fit the Velcro mounting disc first and confirm all four straps are fully engaged before attaching any working pad. Power up the machine before contacting the surface — starting under load draws excessive current through the brushes and shortens their service life. Work in overlapping circular passes at moderate pressure, letting the disc do the cutting, sanding, or floating action rather than forcing the machine into the surface.
For wall use, support the body of the machine with the off hand on the secondary grip — the rotational reaction torque needs counter-bracing for fine surface control. After each substantial job, clean residue from the head and disc, and inspect the carbon brushes through the access caps. Replacement electrographite brushes are included in the box; once the originals wear down, swap them in rather than running the machine with degraded brushes.
Trade Insight
The DED7767 earns its place in a plasterer's or renderer's kit on jobs where surface preparation, floating, or finishing is the time-bottleneck. A typical example: an old painted render needing complete stripping and re-finishing would otherwise mean hours of hand-scraping and hand-floating. With this machine and the appropriate pad set, the same job moves through stripping, sanding, and floating stages in a fraction of the time. The starter pads cover the basic floating function, but most users add the stripping disc and at least one sanding grid to unlock the machine's broader range. The system is at its most productive when the full pad family is on hand, since the time saved by quick pad changes is what justifies the equipment cost over hand methods.
Is This Product Right for Your Project?
- Internal plaster finishing on lime cement or gypsum walls: ideal — supplied pads handle basic floating, with the DED77671 PU foam pad available for fine finishing.
- External thin-coat render finishing: well suited with the DED77674 polystyrene pad — different friction profile suits silicone and acrylic textures.
- Surface preparation and stripping work: add the DED77675 steel-blade stripping pad for paint, wallpaper, and bonded coating removal.
- Battery-only sites with no mains access: the DED7767 is a 230V mains tool — for cordless work, alternative machines outside this system would be required.
Frequently Asked Questions
What is included in the box?
The machine ships with a sponge disc, a PVC primary floating disc, a Velcro mounting disc, a screwdriver for brush access, and a set of replacement electrographite brushes. Add-on pads such as the stripping disc and sanding grids are sold separately as part of the wider Dedra range.
Can the machine be used on walls as well as floors?
Yes. At 4.3 kg the machine is light enough for vertical use, and the 110 rpm head speed stays controllable on walls. Counter-brace the rotational torque with the off hand on the secondary grip for fine surface control on vertical surfaces.
Which pads work with the DED7767?
The full Dedra DED7767 pad family — stripping, grid 16 and grid 24 sanding, polyurethane foam, polystyrene, and the included PVC and sponge discs. All attach via Velcro to the mounting disc supplied with the machine. The render finishing guide covers which pad fits which stage of the work.
When should the carbon brushes be replaced?
Once the original brushes wear down to the point that the motor sounds different under load or sparking becomes visible at the access caps. The replacement electrographite brushes supplied in the box are the direct swap-in — refit through the access caps with the included screwdriver, no machine disassembly needed.