QC Shoes for Lavina / Double Segments

Metal bond diamond grinding shoes / Double bar & double round / For concrete floor grinding

Professional QC Diamond Grinding Shoes for Lavina Floor Grinders

Concrete grinding performance depends on matching the bond hardness to the hardness of the concrete surface.

DIATOP QC Shoes for Lavina are designed for professional concrete floor grinding and are available in color-coded bond selections for concrete ranging from soft to super hard.

The range includes both Double Bar and Double Round segment configurations, with different grit ranges depending on the concrete hardness.

Type of Equipment: FG (Floor Grinder)

Key Features

• Designed for Lavina floor grinders.

• QC-style grinding shoe system.

• Double Bar and Double Round configurations available.

• Multiple bond options for different concrete hardness levels.

• Lavina color reference and DIATOP bond reference provided.

• Double Bar segment size: 40 x 10 x 10 mm.

• Double Round segment size: D25 x 10 mm.

• Multiple grit ranges available.

Bond Selection Guide

Item / Lavina Color / Concrete Hardness / DIATOP Bond / PSI / Mohs Scale

• SC / Yellow / Soft concrete / AC / Under 3000 PSI / 2–3

• MC / Grey / Medium concrete / MC / 4000–5000 PSI / 3–5

• HC / Red / Hard concrete / HC / 5000–6000 PSI / 5–7

• HCG / Gold / Extra hard concrete / VC / 6000–7000 PSI / 7–8

• SHC / White / Super hard concrete / UC / Over 7000 PSI / 8–9

Soft Concrete / Yellow

AC Bond / For soft concrete

Double Bar

Available Sizes

Item – Grit # / Segment Spec (L x T x H mm)

• QCAC 18 – 18 / 20 / 40 x 10 x 10 mm

• QCAC 30 – 30 / 40 / 40 x 10 x 10 mm

• QCAC 60 – 60 / 80 / 40 x 10 x 10 mm

• QCAC 120 – 120 / 150 / 40 x 10 x 10 mm

Double Round

Available Sizes

Item – Grit # / Segment Spec (D x T mm)

• QCACR 18 – 18 / 20 / D25 x 10 mm

• QCACR 30 – 30 / 40 / D25 x 10 mm

• QCACR 60 – 60 / 80 / D25 x 10 mm

• QCACR 120 – 120 / 150 / D25 x 10 mm

Technical Notes

• Concrete: Soft

• Lavina Color: Yellow

• DIATOP Bond: AC

• PSI: Under 3000

• Mohs Scale: 2–3

Medium Concrete / Grey

MC Bond / For medium concrete

Double Bar

Available Sizes

Item – Grit # / Segment Spec (L x T x H mm)

• QCMC 18 – 18 / 20 / 40 x 10 x 10 mm

• QCMC 30 – 30 / 40 / 40 x 10 x 10 mm

• QCMC 60 – 60 / 80 / 40 x 10 x 10 mm

• QCMC 120 – 120 / 150 / 40 x 10 x 10 mm

Double Round

Available Sizes

Item – Grit # / Segment Spec (D x T mm)

• QCMCR 18 – 18 / 20 / D25 x 10 mm

• QCMCR 30 – 30 / 40 / D25 x 10 mm

• QCMCR 60 – 60 / 80 / D25 x 10 mm

• QCMCR 120 – 120 / 150 / D25 x 10 mm

Technical Notes

• Concrete: Medium

• Lavina Color: Grey

• DIATOP Bond: MC

• PSI: 4000–5000

• Mohs Scale: 3–5

Hard Concrete / Red

HC Bond / For hard concrete

Double Bar

Available Sizes

Item – Grit # / Segment Spec (L x T x H mm)

• QCHC 30 – 30 / 40 / 40 x 10 x 10 mm

• QCHC 60 – 60 / 80 / 40 x 10 x 10 mm

• QCHC 120 – 120 / 150 / 40 x 10 x 10 mm

Double Round

Available Sizes

Item – Grit # / Segment Spec (D x T mm)

• QCHCR 30 – 30 / 40 / D25 x 10 mm

• QCHCR 60 – 60 / 80 / D25 x 10 mm

• QCHCR 120 – 120 / 150 / D25 x 10 mm

Technical Notes

• Concrete: Hard

• Lavina Color: Red

• DIATOP Bond: HC

• PSI: 5000–6000

• Mohs Scale: 5–7

Extra Hard Concrete / Gold

VC Bond / For extra-hard concrete

Double Bar

Available Sizes

Item – Grit # / Segment Spec (L x T x H mm)

• QCVC 30 – 30 / 40 / 40 x 10 x 10 mm

• QCVC 60 – 60 / 80 / 40 x 10 x 10 mm

• QCVC 120 – 120 / 150 / 40 x 10 x 10 mm

Double Round

Available Sizes

Item – Grit # / Segment Spec (D x T mm)

• QCVCR 30 – 30 / 40 / D25 x 10 mm

• QCVCR 60 – 60 / 80 / D25 x 10 mm

• QCVCR 120 – 120 / 150 / D25 x 10 mm

Technical Notes

• Concrete: Extra Hard

• Lavina Color: Gold

• DIATOP Bond: VC

• PSI: 6000–7000

• Mohs Scale: 7–8

Super Hard Concrete / White

UC Bond / For super-hard concrete

Double Bar

Available Sizes

Item – Grit # / Segment Spec (L x T x H mm)

• QCUC 30 – 30 / 40 / 40 x 10 x 10 mm

• QCUC 60 – 60 / 80 / 40 x 10 x 10 mm

• QCUC 120 – 120 / 150 / 40 x 10 x 10 mm

Technical Notes

• Concrete: Super Hard

• Lavina Color: White

• DIATOP Bond: UC

• PSI: Over 7000

• Mohs Scale: 8–9

• Double Bar configuration shown in the catalog

Technical Notes

• Product Type: QC Shoes for Lavina

• Equipment: FG (Floor Grinder)

• Segment Options: Double Bar / Double Round

• Double Bar Segment: 40 x 10 x 10 mm

• Double Round Segment: D25 x 10 mm

• Soft Concrete: AC / Yellow

• Medium Concrete: MC / Grey

• Hard Concrete: HC / Red

• Extra Hard Concrete: VC / Gold

• Super Hard Concrete: UC / White

• Available grit ranges vary by bond from 18/20 through 120/150

Typical Applications

Lavina floor grinding, soft concrete grinding, medium concrete grinding, hard concrete grinding, extra-hard concrete grinding, super-hard concrete grinding, concrete floor preparation, industrial floor grinding, surface preparation, metal bond grinding, double-bar grinding, double-round grinding

Q1. How do I select the correct DIATOP QC Shoe for Lavina?

A. Select the series according to concrete hardness: AC / Yellow for soft concrete, MC / Grey for medium concrete, HC / Red for hard concrete, VC / Gold for extra-hard concrete, and UC / White for super-hard concrete.

Q2. What is the difference between the Double Bar and Double Round versions?

A. Double Bar models use 40 x 10 x 10 mm bar segments, while Double Round models use D25 x 10 mm round segments.

Q3. What grit ranges are available?

A. Depending on the concrete-hardness series, available grit ranges include 18/20, 30/40, 60/80, and 120/150.

For QC Shoes for Lavina selection, concrete hardness matching, bond selection, grit recommendations, and troubleshooting guidance, please visit the DIATOP Tech Notes section.