COMPARING SINGLE-LAYER AND DOUBLE-LAYER PRODUCTION

Whether you want to produce single-layer, double-layer, or both, Cassani Longinotti can deliver the best tile manufacturing and finishing solution for you. This is why many clients turn to us to determine which system is more appropriate to their needs.

Under the older, double-layer process (“DS” or doppiostrato in Italian), slabs and tiles are made up of two layers of material: the first, a colored surface layer, called the noble or face layer, and the second or base layer, using gray cement and simple aggregates for the back of the tile. The base layer has no function once the slab is laid; its only purpose is during the pressing of the tile, when it absorbs the excess water from the face layer, which during production is in a liquid state.

Single-layer tile manufacturing technology (known as “MS”, or monostrato, in Italian) was created and developed by Longinotti Group, after setting out specifically to deliver a single-layer tile with all the qualities of the classic double-layer product. Under our proprietary, patented technology, excess water is removed using special filters and an average pressing capacity three times higher than under the older technology. In this way, a base layer is not required.

The advantages of MS are significant both in technical and economic terms: MS tiles are 40-45% more compact in volume and weight, halving the cost of transport and making much lighter laying surfaces, without sacrificing any of the strength, durability or ease of laying of double-layer tiles. 

Other production costs of MS and DS production plants are very similar, including raw materials, electricity, abrasive consumption, labour, plant depreciation, maintenance. 

Single-Layer ("MS") Double-Layer ("DS")
Sample Tile Size
Thickness (mm)
Weight (kg)
Thickness (mm)
Weight (kg)
200 x 200
14
1.3
24
2.1
250 x 250
16
2.4
29
3.9
300 x 300
18
3.9
32
6.2
333 x 333
19
5.1
34
8.3
400 x 400
21
8.1
36
12.8
500 x 500
23
13.8
40
21.8
600 x 600
25
21.6
46
36.2
Single-Layer ("MS") Double-Layer ("DS")
Appearance
Key Tile / Slab Difference
40-45% lower volume and weight
Key Plant Difference
No second-layer batching system required
Hermetic Press Productivity
Around 300 presses/hr
Largest format (mm): 1000x1000 or 1400 x 600
Around 360 presses/hr
Largest format (mm): 1000x1000 or 1200 x 600
Hermetic Press Differences
Typically has 4 or 5 stations

4-station press (anti-clockwise, from right):
1. Face mix delivery
2. Upper vibrator
3. Pressing
4. Extraction
Typically has 5/7 stations

6-station press (anti-clockwise, from right):
1. Face mix delivery
2. Upper vibrator
3. Vibration
4. Base mix delivery
5. Pressing
6. Extraction

LONGINOTTI MSTM: THE KING OF SINGLE-LAYER TILES

LONGINOTTI CREATED AND PATENTED THE TECHNOLOGY FOR CONCRETE SLAB PRESSING THAT LEADS THE MARKET TODAY: A COMPACT, LIGHT, NON-POROUS, HIGHLY DURABLE AND EASY-TO-FIT TILE.

Create the art of Venetian mosaics with all its splendor, color and contrasts using only cement, marble powder and chips and water.

• Adaptable from smaller (200x200mm) to larger formats one (1400x600mm) in square, hex or rectangular formats with thickness from 10mm to 60mm.

• For flooring or wall cladding, even over existing surfaces, and can be treated in many different finishes.

• Can be produced with interior lattice armour to increase resistance under pressure.

Components
Binder
Portland Cement 525
                               
Aggregates
Marble powder and chips
TECHNICAL QUALITIES AFTER 28 DAYS
TECHNICAL CHARACTERISTICS
RESULT
APPLICABLE STANDARD
Max Dimension of Crushed Aggregate
4-8 mm
Specific Weight
2.5-2.6 kh / dm3
UNI 10444
Flexural Strength
11.7-12.0 N/mm2
UNI 6133
Compressive Strength
90-100 N/mm2
DIN 52105
Abrasion Resistance
430-460 mm2
UNI 10532
Water Absorption
4.0-4.5% (of weight)
UNI 10444
Fire Classification
Class 0
ISO / DIS 11822
Behaviour of Freeze and Thaw
Resistant
DIN 52104