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Basic products

  • PREFEN COMPOSITE PROFILES
  • COMPOSITE GRATINGS
  • COMPOSITE COVERS

Structures

  • COMPOSITE RAILINGS
  • WALL-MOUNTED AND FREE-STANDING COMPOSITE LADDERS
  • CABLE RUNS
  • COMPOSITE FOOTBRIDGES
  • COMPOSITE STAIRCASES
  • WATERWORKS STRUCTURES
  • ENERGY INDUSTRY PRODUCTS

OTHERS

  • LAMINATED PRODUCTS
  • PREFAPREG SMC
  • BMC MATERIALS
  • PRESSING
  • GLUES
  • PREFA REBAR COMPOSITE REINFORCEMENT
  • custom products
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  • Waterworks
  • Chemistry
  • Roads and Bridges
  • Railways
  • Energy Industry
  • Piers and Docks
  • Structural Reinforcement
  • Civic Construction
  • Windows and Doors
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 COMPANY NAME AND ADDRESS

 

PREFA KOMPOZITY, a.s., Kulkova 10/4231, 615 00 Brno, Czech Republic

The Company’s business registration number (IČ) is 26949881,

its VAT registration number (DIČ) is CZ26949881.

It is entered into the Commercial Registry of the Regional Court of Brno, File B-4276.

Tel.: +420 541 583 297, +420 541 583 208

email: kompozity@pre­fa.cz

 

 MANUFACTURING PLANT AND WAREHOUSE

 

Havránkova 11, 619 00 Brno – Dolní Heršpice, Czech Republic

 

 COMPANY MANAGEMENT

 

Chairman of the Board

Ing. Miloš Filip • tel.: +420 541 583 292 • filip@prefa.cz

Director of the company

Ing. Pavel Stryk • tel.: +420 541 583 208, +420 728 082 107 • stryk@prefa.cz

 

 TECHNOLOGY AND SALES

 

Sales manager

Ing. Marek Šlapanský • tel.: +420 541 583 297, +420 606 610 178 • slapansky@pre­fa.cz

Sales assistant

Petra Stryková • tel.: +420 606 076 043 • strykova@pre­fa.cz

Project and technology manager

Ing. Michal Došlík • tel.: +420 541 583 241, +420 734 755 956 • doslik@prefa.cz
 

 DEVELOPMENT AND INNOVATION DIVISION

 

Director of Development and innovation division

Ing. Jan Prokeš, Ph.D. • tel.: +420 724 054 563 • prokes@prefa.cz

Development technician

Ing. Ondřej Sedláček • tel.: +420 724 954 756 • sedlacek@prefa.cz

Development technician

Ing. Ondřej Bezděk • tel.: +420 720 669 848 • bezdek@prefa.cz
 

 PRODUCTION

 

Director of manufacturing plant and warehouse

Ing. Jiří Bechný • tel.: +420 543 521 419, +420 602 510 758 • bechny@prefa.cz

 

 

Contact us:

Fields marked with * are required
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Product certificates

Profiles PREFEN  PDF
Gratings PREFAGRID and PREFAPOR   PDF
Covers PREFAPLATE PDF
Railings PREFASAF PDF
Ladder PREFALAD PDF
Composite reinforcement PREFACARB (cz) PDF
Reinforcing rods PREFA REBAR (cz) PDF

Declaration of conformity / Declaration of performance

Profiles PREFEN (DoC) PDF
Gratings PREFAGRID a PREFAPOR (DoC) PDF
Covers PREFAPLATE (DoC) PDF
Railings PREFASAF (DoC) PDF
Ladders PREFALAD (DoC) PDF
Shaft ladders PREFALAD (DoP) PDF
Composite reinforcement PREFACARB (DoP – cz) PDF
Reinforcing rods PREFA REBAR (DoC – cz) PDF

Assessment

Fire interaction class C-s2, d0, construction products (cz)  PDF
Fire interaction class B fl-s1, flooring materials (cz) PDF
Antistatic (cz) PDF
PREFEN – surface resistance PDF
Statement of the Mining Office (cz) PDF
Reference list – Utility  tunnel (cz) JPG
Thermal conductivity (cz) PDF
Anti-slip properties (cz) PDF
Contact with drinking water PDF
Insulating properties of ladders (cz) PDF

ISO Certificate

Certificate ISO 9001:2016 PDF
Certificate ISO 14001:2016 PDF

Catalogs

Product catalog 2019 PDF
Railings and covers (cz) PDF
Leaflet covers PDF
FRP concrete reinforcement (cz) PDF
Leaflet PREFACARB (cz) PDF
Leaflet PREFEN 600HT (cz) PDF
Leaflet SMC PREFAPREG (cz) PDF
Profiles dimensioning (cz) PDF
Key features of PREFEN profiles (cz)  PDF

Program PREFEN

Calculation tables for PREFEN profiles (in Czech l.)  XLS format

 

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MANUFACTURE AND ASSEMBLY OF COMPOSITE MATERIALS AND STRUCTURES

WE MAKE YOUR LOAD LIGHTER…

PREFA KOMPOZITY • Brno • Czech Republic

COMPOSITE GRATINGS

Our gratings are made of resin-fiber composites. They are highly durable and make an excellent replacement for metal gratings, particularly in corrosive environments.

References

Composite assembled gratings PREFAPOR on the dockside bridge
Walkable moulded gratings PREFAGRID
Bridge gap cover
Roof footbridge - moulded gratings PREFAGRID
Drive-over gratings PREFAGRID
Moulded gratings PREFAGRID in technological premises

More examples of applications can be found in the references: water management, transport construction, chemistry and more

Details

Assembled gratings PREFAPOR
Moulded gratings anchoring
Moulded grating PREFAGRID
Assembled grating PREFAPOR
Moulded gratings anchoring
Detail of anchoring of assembled grating PREFAPOR

GRATINGS TYPES

  • PREFAPOR assembled gratings composed of pultruded beams; contain up to 70% glass fiber.
  • PREFAGRID molded gratings; contain up to 40% glass fiber.

ACCESSORIES

Stainless steel gratings anchors, shaped to match anchor eye (moulded gratings) or support leg (assembled gratings) thickness.

COLORS

The standard color is grey; for larger orders, consult our sales department for custom colors (green, yellow, and others).

PREFAPOR ASSEMBLED GRATINGS

KEY FEATURES

  • Pultrusion technology allows the use of subsurface veil, which protect the material
    from corrosive environments.
  • Up to 70% glass fiber; allows the use of fiber mats
  • Longer service life
  • Higher shock resistance
  • Panels of arbitrary length can be made (unlike moulding, which is limited by mold size)
  • Anti-slip surface

DRAWBACKS

  • Can only be supported perpendicular to loadbearing element axis
  • Not suitable for pipe pass-through apertures

ASSEMBLED GRATINGS TYPES

type plate width
[mm]
gap width
[mm]
height
[mm]
weight
[kg/m2]
1. PREFAPOR 15 x 23/ 25 15 23 25 12.0
2. PREFAPOR 15 x 10/ 25 15 10 25 15.0
3. PREFAPOR 40 x 10/ 25 40 10 25 13.0
4. PREFAPOR 15 x 23/ 32 15 23 32 13.5
5. PREFAPOR 15 x 23/ 38 15 23 38 16.1
6. PREFAPOR 15 x 10/ 38 15 10 38 22.0
7. PREFAPOR 25 x 25/ 50 25 25 50 15.1

NOTE: Custom sizes available (length in load-bearing direction up to 4,000 mm; width up to 1,500 mm)

1. 2. 3. 4. + 5. 6. 7.
prefapor1 prefapor2 prefapor3 prefapor4 prefapor6 prefapor7

ASSEMBLED GRATINGS ANCHORING

kotveni-skladanych1 Prefapor - Příponka se šroubem a jazýčkem

PREFAGRID MOULDED GRATINGS

KEY FEATURES

  • Higher stiff ness (reinforcing fibers laid in two perpendicular axes)
  • Can be supported at all four sides
  • Can be cut to any shape
  • Pipe pass-through apertures can be cut
  • Anti-slip surface

DRAWBACKS

  • Moulding technology is incompatible with subsurface veil
  • Reinforcing fiber share is only about half that of assembled gratings
  • Lower shock resistance
  • Maximum dimensions limited by available molds

MOULDED GRATINGS TYPES

type eye size
[mm]
height
[mm]
weight
[kg/m2]
standard panel sizes
[mm]
1. PREFAGRID 44 x 44/14 44 x 44 14 5.8 1,220 x 3,660
2. PREFAGRID 30 x 30/20 30 x 30 20 10.0 1,220 x 3,660
3. PREFAGRID 30 x 30/25 30 x 30 25 12.0 920 x 2,800; 1,007 x 2,800; 1,000 x 3,000; 1,220 x 3,660; 1,220 x 4,000
4. PREFAGRID 30 x 30/30 30 x 30 30 14.6 920 x 2,800; 920 x 3,050; 1,000 x 3,000; 1,000 x 4,000; 1,220 x 2,100; 1,220 x 3,660
5. PREFAGRID 30 x 30/38 30 x 30 38 19.5 1,000 x 3,660; 1,000 x 4,000; 1,220 x 2,100; 1,220 x 3,660; 1,220 x 4,000
6. PREFAGRID 44 x 44/50 44 x 44 50 23.5 970 x 2,250; 970 x 3,660; 1,220 x 3,660
7. PREFAGRID 30 x 30/60 30 x 30 60 50.0 770 x 1,383; 1,000 x 3,660; 1,220 x 3,660

NOTE: Custom shapes and sizes available upon request

1. 2. + 3. 4. 5. 6. 7.
prefagrid1 prefagrid2 prefagrid3 prefagrid4 prefagrid5 prefagrid6

MOULDED GRATINGS ANCHORING

kotveni-litych1 Prefagrid - příponka kotveni-litych3

GRATING MOUNTING OPTIONS

zpusob-ulozeni-rostu-1profile frame for installation in concrete zpusob-ulozeni-rostu-2Angle frame for installation in concrete, steel anchors zpusob-ulozeni-rostu-3Angle frame for side mounting, mechanical anchors zpusob-ulozeni-rostu-42 x angle frame for side mounting, mechanical anchors
zpusob-ulozeni-rostu-5Angle frame for top mounting, dowels zpusob-ulozeni-rostu-6Angle frame for top mounting with extra cement, dowels zpusob-ulozeni-rostu-7Placing on composite beam  

PREFAPOR ASSEMBLED GRATING MAXIMUM LOAD

CONTINUOUS LOAD [kg/m2]

type SPAN BETWEEN SUPPORTS [mm]
500 600 700 800 900 1,000 1,100 1,200
PREFAPOR 15×23/25 5,820 3,370 2,120 1,330 830 550 370 260
PREFAPOR 15×10/25 8,530 4,940 3,110 1,950 1,220 800 550 390
PREFAPOR 40×10/25 10,460 6,050 3,810 2,390 1,490 980 670 470
PREFAPOR 15×23/32 11,640 6,730 4,240 2,660 1,660 1,090 750 530
PREFAPOR 15×23/38 13,240 9,010 5,670 3,560 2,230 1,460 1,000 700
PREFAPOR 15×10/38 14,120 9,260 6,860 4,310 2,690 1,760 1,210 850
PREFAPOR 25×25/50 16,340 11,820 8,430 6,230 3,890 2,550 1,740 1,230

NOTE: For two-support mounting. Criterion: sagging l/125, max. 6 mm.

ISOLATED FORCE LOAD [kg]

type SPAN BETWEEN SUPPORTS [mm]
500 600 700 800 900 1,000 1,100 1,200
PREFAPOR 15×23/25 920 500 320 240 190 150 110 90
PREFAPOR 15×10/25 1,310 810 530 380 280 210 160 130
PREFAPOR 40×10/25 910 590 410 270 190 170 130 100
PREFAPOR 15×23/32 1,150 670 450 320 240 190 140 110
PREFAPOR 15×23/38 1,940 1,180 790 570 420 330 250 200
PREFAPOR 15×10/38 2,910 1,830 1,250 890 670 500 400 320
PREFAPOR 25×25/50 2,360 1,620 1,060 800 620 480 380 310

NOTE: Values for two-support mounting with load applied at grating geometric center, pursuant to EN 124. For load applied to unsupported edge, the deformation is about twice the value listed.
Criterion: sagging l/125, max. 6 mm.

PREFAGRID MOULDED GRATINGS MAXIMUM LOAD

CONTINUOUS LOAD [kg/m2]

type SPAN BETWEEN SUPPORTS [mm]
500 600 700 800 900 1,000 1,100 1,200
PREFAGRID 30×30/25 1,450 840 530 330 210 140 90 70
PREFAGRID 30×30/30 2,780 1,610 1,010 640 400 260 180 130
PREFAGRID 30×30/38 4,270 2,470 1,550 980 610 400 270 190
PREFAGRID 44×44/50 7,660 5,220 3,290 2,060 1,290 850 580 410
PREFAGRID 30×30/60 20,180 14,180 10,510 6,600 4,120 2,700 1,850 1,300

NOTE: For two-support mounting. Criterion: sagging l/125, max. 6 mm.

ISOLATED FORCE LOAD [kg]

type SPAN BETWEEN SUPPORTS [mm]
500 600 700 800 900 1,000 1,100 1,200
PREFAGRID 30×30/25 350 210 150 100 70 60 50 40
PREFAGRID 30×30/30 760 450 270 190 140 110 80 60
PREFAGRID 30×30/38 1,030 670 420 290 210 160 120 100
PREFAGRID 44×44/50 2,270 1,370 940 650 490 340 280 220
PREFAGRID 30×30/60 4,880 3,300 2,060 1,440 1,130 790 640 510

NOTE: Values for two-support mounting with load applied at grating geometric center, pursuant to EN 124. For load applied to unsupported edge, the deformation is about twice the value listed.
Criterion: sagging l/125, max. 6 mm.

CONTACT US ABOUT COMPOSITE GRATINGS

Fields marked with * are required
PREFA KOMPOZITY a.s. - Logo

Products

  • PREFEN COMPOSITE PROFILES
  • COMPOSITE GRATINGS
  • COMPOSITE COVERS
  • COMPOSITE RAILINGS
  • WALL-MOUNTED AND FREE-STANDING COMPOSITE LADDERS
  • CABLE RUNS
  • COMPOSITE FOOTBRIDGES
  • COMPOSITE STAIRCASES
  • WATERWORKS STRUCTURES
  • ENERGY INDUSTRY PRODUCTS
  • LAMINATED PRODUCTS
  • PREFAPREG SMC
  • BMC MATERIALS
  • PRESSING
  • GLUES
  • PREFA REBAR COMPOSITE REINFORCEMENT
  • custom products

Reference Orders

  • Waterworks
  • Chemistry
  • Roads and Bridges
  • Railways
  • Energy Industry
  • Piers and Docks
  • Structural Reinforcement
  • Civic Construction
  • Windows and Doors

Technology

  • WHAT ARE COMPOSITE MATERIALS?
  • PULTRUSION TECHNOLOGY
  • Moulding
  • Manual lamination
  • PRESSING
  • SMC
  • BMC
  • GLUES PRODUCTION
  • PREFEN – product characteristics
  • KEY FEATURES

Development and Innovation

  • Development and Innovation

About the Company

  • Company characteristics

PREFA KOMPOZITY, a.s.

kompozity@prefa.cz
Company name: PREFA KOMPOZITY, a.s.
Address: Kulkova 10, 615 00 BRNO, CZ
Phone: +420 541 583 297, +420 541 583 208
E-mail: kompozity@prefa.cz
Registration number: CZ 26949881
© 2019 Prefa Kompozity a.s., subsidiary company of Prefa Brno a.s.
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