Pack of 20 Double-Sided Sanding Discs, 406 mm Diameter, Silicon Carbide | K16-K100 | Professional Bulk Pack Compatible with Lägler, MENZER, and Bona

Pack of 20 double-sided grinding discs, 406 mm diameter, silicon carbide — the professional bulk pack with the best unit price

Our double-sided sanding discs (Ø 406 mm) in professional bulk packs are the economical choice for floor restoration specialists, renovation companies, and industrial professionals. With 20 discs per pack—grit 16 (5-pack)— you get the best unit price and are fully equipped for large-scale projects. Available in 7 grits from K16 to K100 —the right grit for every professional sanding task. With a 25-mm screw hole, they fit all standard single-disc machines with a 406-mm drive plate. As a direct manufacturer-importer, we often offer prices 30% lower than German brand manufacturers while providing comparable or better quality.

💡 Need a smaller quantity? For medium-sized projects and workshops, we also offer a convenient 10-pack with flexible order quantities.

⚡ Double-sided design — double the efficiency, half the cost

The key advantage of our grinding discs: both sides are coated to ensure full functionality. When one side is worn out, simply flip the disc over—and continue working at full grinding power. This effectively turns 20 discs into 40 grinding units —the most cost-effective solution for professional floor finishing. Less downtime, lower material costs, and higher productivity.

💰 Why the 20-pack? Maximum value for professionals

The bulk container is the obvious choice for professionals and large-scale projects:

• Best unit price: Significant volume discount compared to smaller packs
• Comprehensive services for large-scale projects: industrial buildings, underground parking garages, and apartment building renovations
• Work efficiently without having to reorder: Enough materials to cover entire project phases
• Consistent quality from a single batch: Essential for professional grinding results
• Reduced shipping costs per disc: Lower unit costs, including logistics

🔵 Premium silicon carbide — sharp-edged and high-performance

Our discs use open-grit silicon carbide on a sturdy fabric backing with a synthetic resin bond. Silicon carbide has exceptional sharpness and cuts through even tough, hard materials—making it particularly suitable for:

• Mineral-based materials: concrete, screed, stone, granite, marble
• Building materials: plaster, joint compound, Styrofoam
• Woodworking: Parquet, floorboards, solid wood
• Coatings: paint, varnish, old wax and protective layers

📊 The right grit for every professional application

Our 20-pack is available in 7 grit sizes —select the right one using the drop-down menu:

• K16 (Extra Coarse) — 5-pack: Maximum material removal — old screeds, thick layers of filler, paint and wax removal. Note: K16 is typically needed for specific tasks and in small quantities, so it is available in a 5-pack.
• K24 (Very Coarse): Coarse abrasion for concrete and stone floors; removal of old coatings
• K36 (Coarse): Standard coarse grit for concrete restoration and screed work
• K40 (Coarse–Medium-Coarse): Pre-sanding for parquet renovation, initial sanding of wood floors — effectively removes varnish residue
• K60 (medium-coarse): Intermediate sanding after K24/K36/K40 — removes coarse sanding marks
• K80 (Medium): Preparation for the final finish, uniform sanding pattern
• K100 (Fine): Fine sanding before sealing, painting, or coating

💡 Pro tip: For large projects, it’s a good idea to keep several grit sizes on hand at the same time—for example, K24/K60/K100 for complete concrete renovations or K40/K80 for woodworking. This way, you can keep working without interruption.

🔧 Technical Specifications — Everything at a Glance

• Diameter: Ø 406 mm (16 inches)
• Abrasive grain: Premium silicon carbide
• Backing: Durable fabric with synthetic resin binding
• Inner hole: 25 mm — Screw mounting
• Coating: Double-sided — both sides are fully usable
• Spreading: Open spread for high grinding performance
• Grit range: K16 to K100
• Packaging unit: 20 pieces per pack (K16 = 5 pieces)

🛠️ Compatible machines — fits all standard 406-mm models

A drive plate (pad driver) with a diameter of 406 mm is always required. Here is a selection of compatible machines:

• Lägler: Single, Trio (depending on the adapter/plate)
• MENZER: ESM 406 and other single-disc machines
• Bona: FlexiSand 1.9 with Pad Drive, Buffer
• Numatic: HFM 1515, NPR 1515, NMD 1000
• Columbus: E400, E500, RA 43/55/60 (with 406-mm drive plate)
• Cleanfix: R44-180, R44-120
• Kärcher: BDS 43/180 C, BDS 43/150 C
• Hako: Cleanserv SD43/180, PB43
• Sprintus: Hercules, Tornado
• WOLFF: Samba, Floorboy XL 300

In some cases, a special adapter ring may be required, or you can use our Superpads as a mounting pad. If you have any questions about compatibility, please feel free to contact us—we’ll be happy to assist you personally.

🎯 Typical applications for the professional bulk container

• Industrial floor restoration: factory buildings, underground parking garages, logistics facilities, production sites
• Large-scale renovations: office buildings, apartment buildings, commercial properties
• Screed & Concrete Construction: Preparing Large Surfaces for Coating or Sealing
• Flooring Installers & Parquet Experts: Consistent Quality for Large-Scale Projects
• Construction Companies & General Contractors: Efficient Bulk Purchasing for Ongoing Projects
• Cleaning Companies & Building Service Providers: Regular Supply for Floor Care Contracts

💲 Direct from the manufacturer-importer — Professional quality at fair prices

As a manufacturer and importer, we produce our products in our own factories and ship them directly to Germany without any middlemen. This has consistently allowed us to offer prices that are 30% lower than those of German brand manufacturers, while maintaining comparable or even higher quality. We already supply well-known specialty retailers in southern Germany—a clear sign of confidence in the quality of our products.

👍 Who is the 20-pack bulk pack ideal for?

• Floor Restoration & Installation Specialists: Cost-Effective Solutions for Ongoing Professional Projects
• Screed & Concrete Contractors: Bulk containers for surface treatment with consistent demand
• Construction Companies & General Contractors: Efficient Procurement for Multiple Construction Sites Simultaneously
• Industrial Facilities & Workshops: Ensure a Steady Supply of Consumables, Reduce Ordering Effort
• Cleaning Companies & Facility Management: Bulk Containers for Regular Maintenance
• Wholesalers & Resellers: Even more attractive B2B terms available upon request

👉 Need a smaller quantity? Check out our 10-pack with flexible order quantities for medium-sized projects and workshops.

❓ Frequently Asked Questions About the 20-Pack of Double-Sided Sanding Discs

What does "double-sided" mean when referring to grinding wheels?

With a double-sided grinding wheel, both sides are coated with abrasive grit. When one side is worn out, simply flip the wheel over and use the other side—this effectively doubles the service life of each wheel and saves on material and costs.

What grit size do I need for my application?

For removing screed or thick layers, start with K16 or K24. K36 is sufficient for standard concrete grinding. K40 is ideal for sanding parquet. Then gradually move to finer grits: K60 → K80 → K100 for the final sanding before sealing or coating.

When is the 20-pack a good deal—and when is the 10-pack?

The 20-pack is the economical choice for floor restoration professionals, large-scale projects, and professional businesses with regular usage—you’ll get the best price per unit. The 10-pack is ideal for medium-sized projects, workshops, and professional DIYers who don’t need quite as many.

How many square meters can I cover with the 20-pack?

With medium-grit (K60) discs on concrete, the service life per disc side is typically 50–100 m². With 20 double-sided discs, you can therefore theoretically cover a total area of 2,000–4,000 m²—ideal for large-scale projects. On harder or uneven surfaces, the coverage will be correspondingly lower.

Do I need an adapter for my machine?

A drive plate with a diameter of 406 mm is always required. In some cases, a special adapter ring may be necessary, or you can use our Superpads as a backing pad. If you have any questions about compatibility, please feel free to contact us.

Are the discs also suitable for wood?

Yes — silicon carbide also works exceptionally well on wood floors, especially for removing old sealants, wax, or varnish layers. For fine sanding of bare wood (parquet renovation), we recommend our hook-and-loop sanding discs with zirconia corundum as an alternative.

Why is K16 only available in packs of 5?

Grit 16 is needed less frequently and usually in smaller quantities—typically for spot roughing or individual problem areas. That’s why we offer K16 in a convenient 5-pack, while K24 through K100 are available in 20-packs.

Do you also offer larger quantities for large-scale projects?

For very large projects, regular orders, and resellers, please feel free to contact us directly. As a manufacturer and importer, we can accommodate custom quantities, special grit sizes, and attractive B2B terms.

How quickly will my order be delivered?

All grit sizes are available from our warehouse in Taufkirchen (near Munich) and are typically shipped within 24 hours via DHL or Hermes.

Are there volume discounts for larger orders?

We offer customized terms for resellers, construction companies, and large-scale projects upon request. Please contact us with your requirements and desired quantities—we’ll be happy to provide you with a customized quote.

📦 Package Contents & Shipping

1 pack of double-sided sanding discs, Ø 406 mm, in the selected grit size (K16 = 5 pieces / K24–K100 = 20 pieces). Shipped from our warehouse in Taufkirchen (near Munich) within 24 hours via DHL or Hermes. Free shipping within Germany for orders over €200, and within the EU and Switzerland for orders over €299. Please contact us directly for bulk orders.