INTRODUCTION
ABOUT “HRONAS”
JSC “Hronas” was established in 1993. The Company started with importingand installing plastic windows. Early in 1994 the new production equipmentwas brought to and window production started in Lithuania. During sevenyears of strenuous work the Company has gradually introduced one of themost state-of-the-art aluminium, plastic and wooden construction productionprocesses in Europe. Fulfilment of projects, which value exceeds LTL 1mil.,has become our daily routine. Though we produce in great volumes, weconsider each customer as exceptional and prime.Striving to meet customers’ interests to the best advantage, we haveintroduced quality management system corresponding with the requirements ofinternational ISO 9002 standards. We do our best for the Company,permanently improving the quality of its products and services, to become areliable partner for everybody: the customer, the architect, the designer. ACTIVITY Designing, production, sale, installation of windows, doors, facades,conservatories, interior partitions of wooden, plastic and aluminiumprofiles, and warranty service.
VOLUME OF PRODUCTION
In 1999 over 50 thus. m2 of products were manufactured and sold for morethan LTL 25 mil.
|QUALITY MANAGEMENT ||[pic] |The Company has completed introduction of the quality management || |system corresponding with the requirements of international ISO 9002|| |standards. ||MEMBERSHIP ||[pic] |Hronas is one of the originators and founders of the Republican || |Association of Window and Door Manufacturers. ||ATTESTATION ||[pic] |The Company is attested by the Ministry of Environment of the || |Republic of Lithuania to perform works in explosive and || |fire-hazardous zones and in priority engineering developments. ||CERTIFICATION OF PRODUCTS ||[pic] |All the Company’s products are certified by the Construction || |Products Certification Center of the Republic of Lithuania and by || |the Certification Center of the Latvian Academy of Science. |
-2-QUALITY
Seeking to be a reliable partner for all our customers, we undertake:
[pic] To adhere strictly to the requirements of the production process.
[pic] To promote the concept of top-quality products among the staff and to suggest it to the customers.
[pic] To use only declared materials while manufacturing products.
[pic] To draw up as detailed design and production documentation as possible.
[pic] To improve constantly the activities of the Company, which would ensure more effective cooperation between all levels of production in customer service.
[pic] To improve the employees’ qualifications and enhance interest in qualitative work.
[pic] To master new high-quality materials and production processes.
[pic] To seek the level of customer service to be considered the highest in Lithuania ranking among the enterprises of the same type.General Director
Valdemaras Eicas
|P R O D U C T S | |
MULTIPLE GLAZING
Hronas uses companies’ Saint-Gobain and Pilkington float glass forproducing multiple glazing units.
The main criteria determining the choice of the type of multiple glazingare thermal and sound insulation, light transmission.
Thermal Insulation
Currently, a single-chamber multiple glazing unit having two transparentpanes and featuring heat transmission of 2,8 W/m2 K is the most popular inLithuania. A tendency of choosing multiple glazing units with the heattransmission of 1,1 W/m2 K for both individual houses and blocks of flatsbecomes more and more obvious. The multiple glazing units featuring suchlow heat transmission consists of an ordinary pane and a pane having softelective coating on it. Multiple glazing units with intermediate thermalcharacteristics are also available. These are multiple glazing unitsconsisting of either two panes, one of which has hard selective coating onit, or three panes. The heat transmission of these multiple glazing unitsis 1,8 W/m2 K.
Sound Insulation
The sound insulation of a single-chamber multiple glazing unit having two4 mm panes is more than 28 dB, while the sound insulation of a double-chamber multiple glazing unit having three 4 mm panes exceeds 32 dB.
-3-Light transmission
|Glass type |Light |Light || |transmissi|reflecti|| |on |on ||Transparent glass|0,89 |0,08 ||Green tinted |0,78 |0,07 ||glass | | ||Brown tinted |0,61 |0,06 ||glass | | ||Grey tinted glass|0,55 |0,05 ||Reflective glass |0,34 |0,46 ||Glass with hard |0,84 |0,14 ||selective coating| | ||Glass with soft |0,86 |0,10 ||selective coating| | |
The above values are specified for 4 mm thick glass.
INTERNAL WINDOWSILLS
Internal windowsills can be made of wood, particleboard or all plastic.Wooden windowsills best match wooden windows. Plastic windowsills arerecommended for rooms with high humidity. It is particleboards, which arecurrently the most popular due to their price, appearance and performance.
EXTERNAL WINDOWSILLSExternal windowsills made of galvanised steel sheet look habitual inearlier built houses. External windowsills made of plastic-coated steelsheet are acquiring growing popularity among those wishing to make theirhouse look somewhat special. This coating gives windowsills a desiredcolour as well as protects them from rusting.
VENTILIATION SYSTEMS
Hronas can offer any desired ventilation system within the range used inwindow constructions. Long experience and continual learning from the lifeenabled to choose several the most advantageous systems. We regard DUCOregister ventilation systems the most advantageous in terms of price andquality. Depending on the location and type of premises we can offerRENSON, SCHÜCO or TITON ventilation systems.
ACCESSORIES
We use SCHÜCO and GRETSCH-UNITAS (GU) accessories for our products. BrandedSCHÜCO accessories have been specially designed to be use for themanufacture of this window system and that is why we are using them for PVCand aluminium products. All the locking parts of accessories are made inmetal. The rubbing parts are made in special plastic alloy which is alsoused in machine industry, especially for parts subject to wear and tear.This makes the SCHÜCO accessories almost maintenance-free.
Besides, these accessories are normally completed with burglarproof partsand belong to the SFI class of safety. All the SCHÜCO accessories bear
crowns as the company’s trademark.German GU accessories are used with wooden products and, if wished by acustomer, with PVC products. These accessories are among the best asregards their constructional properties and variety. -4-WOODEN PRODUCTSWood is one of the oldest building materials used. Influenced byenvironmental changes, natural wood may be cracked and deformed.JSC “HRONAS” uses three-layer pre-glued squared beams of Karelian pine forproduction of windows and doors. Blanks certified according to the GermanDIN standards are especially hard and deformation resistant. Larch,mahogany or oak is available at request.The main production processes (cutting, milling, gluing, priming andpainting) are automated employing new generation machinery and equipment ofGerman companies Michael Weinig AG, Leitz, Reinhold Hess. End-item qualitycontrol and grinding of primed surfaces are carried out manually.Such faultless work performance enables to grant a five years’ guaranteenot only for constructions, but as well for painted/varnished surfaces.FRAMES COLORSWindows are primed, ground, and painted twice with environment-friendlyacrylic paint manufactured by the German company GLASURIT. This is one ofthe best paints currently manufactured in Europe. Products may be paintedin all RAL colour palette colours or coated with colourless paint retainingwood texture.Glazing beads are fastened with special tools in such a way, that no tracesof hammering and nail heads are left. This pleasant trifle improves theaesthetic appearance of the product, especially if products are coated onlywith colourless varnish.Windows are sealed with special-purpose silicones and two not freezing tothe surface, milled in sealing gaskets. These silicon-based gaskets areextremely resistant to environmental factors (humidity, frost) andmechanical impact.New type frame and leaf water boards of the German company GUTMANN arefitted for rain water drainage. Their distinctive feature is that they
cover the whole profile instead of a part of it. Water boards are notfastened with nails or screws, but hung on specially milled recesses.To ensure top quality and aesthetic appearance, we offer to cover woodenwindows all around with aluminium plates. To implement this solution, thecompany uses GUTMANN 4000 system. Aluminium plates as well as the abovementioned water boards are fastened in such a way as to prevent damage ofthe protective impregnated wood surface. Wood covered with aluminium isespecially suitable for conservatories – natural wood is seen from inside,the problems of condensate removal from the roof structure inside andrainwater drainage outside is successfully solved. The exterior is wellprotected from hazardous environmental factors.PLASTIC
FRAMES COLORS|[pi|[pi|[pi|[pic||c] |c] |c] |] ||[pi|[pi|[pi|[pic||c] |c] |c] |] ||[pi|[pi|[pi|[pic||c] |c] |c] |] |
-5-ALIUMINIUM PRODUCTS
Aluminium is a light, stable, rust-resistant and maintenance-free material.To produce aluminium products company Hronas uses section systems of theworld leader SCHÜCO.According to constructional principles company’s SCHÜCO products aredivided into 29 systems. All the systems have subsystems and can becombined with one another.Heat transmission properties of sections:With cold insulating bridges (using polyamide or polymerise gaskets)Without cold bridgesPosition in facade:Flat or sloping facades with transoms visible from outdoorsStructural glazing systemsRoof structuresSystems of aluminium cassettes and their fastening elements used for facadedecorationSurface coating:Painted sectionsAnodised sectionsSpecial constructions:FireproofBall-proofReinforced (special sections and accessories)All articles of the SCHÜCO systems are completed with the branded SCHÜCOaccessories. Special orders (devices for automatic closing of doors andwindows, solenoid locks etc.) are to be agreed separately based on acustomer’s needs.It is obvious that staff possessing appropriate skills is needed for all
the aluminium systems to be used correctly as regards construction andprice. The projects carried out by company Hronas allow to give a customera guarantee based not on a word of honour but on everyday experience.UNFRAMED GLASS STRUCTURES PRODUCTS
Employees and customers of various offices, banks, companies have beenenjoying unframed glass structures for many years. Partitions and doorsmade of unframed glass structures heartily invite you to enter, or at leastto take a peep at what is going on behind them. Unframed glass structuresare made of two main components:1. Toughened glass.
[pic] 5-6 times as impact resistant as not toughened glass,
[pic] Stands great temperature fluctuations,
[pic] Safe – when broken, it goes to tiny scraps not presenting any seriousdanger to those present,
[pic] Not apt to deformation.2. Fastening accessories and accessories for opening/closing.
PILKINGTON, SAINT-GOBAIN, EUROGLAS and GLAVERBEL glass is mainly used inglass structures. Glass may be clear, coloured, enamelled.The second component of unframed glass structures is fastening accessoriesand accessories for opening/closing. This is especially important part ofthe structure. Structure reliability and service life will depend on properchoice of accessories.
-6- Our adviser in this sphere and supplier is an Italian company CASMA S. p.A. This Company has been manufacturing locks cut in the floor already since1942. For the last 50 years it was CASMA that introduced 90% of innovationsin unframed glass partition and door industry. Over 160 internationalpatents evidence CASMA experience.Benefits:
[pic] selection of more than 2500 accessories units designed only for glassstructures,
[pic] one unit of CASMA accessories may perform up to 32 differentfunctions,
[pic] change upper plugs of glass bearers and sliders (in stainless steel,anodised aluminium, copper, etc.),
[pic] 4 mil. Opening/closing cycles.
REFERENCES
Several of the major engineering developments by JSC “HRONAS”
[pic] Rest house “VETRA” in Palanga
[pic] “SACHMATINE” in Palanga
[pic] Windows and interior partitions of TELEKOMAS in Nida, Klaipëda (2buildings), in Vilnius (4 buildings)
[pic] Conservatory, lift in “NARUTIS” Hotel in Vilnius
[pic] “MAZEIKIU NAFTA” petrol station in Medininkai
[pic] LUKOIL petrol stations in Vilnius (4 buildings), in Grigiskes,Marijampole, Alytus
[pic] Petrol station “TOKVILA” in Vilnius
[pic] “NERINGA” Hotel in Vilnius
[pic] Facade of “ELEKTRO MARKT” in Vilnius
[pic] BG boutique in Vilnius
[pic] Entrances of Elektros Tinklai in Siauliai and Utena
[pic] Vilnius Customs in Medininkai
[pic] JSC “VILNIAUS BANKAS” in Vilnius (3 buildings) , in Kaunas, Klaipeda
[pic] CB “VAKARU BANKAS” in Panevezys, Taurage, Siauliai, Klaipeda
[pic] Lithuanian embassies in Minsk and Moscow
[pic] Theological seminary in Vilnius
[pic] Administrative office of “KLASCO” in Klaipëda
[pic] “SBA” petrol station in Minsk
[pic] JSC “ALNA” in Vilnius (Central office and “Office 1” shop)
[pic] Complex of apartment buildings at Laisves Ave. 115-117 in Vilnius
[pic] MITSUBISHI car salon in Vilnius
[pic] MERCEDES car salon in Kaunas
[pic] The Ministry of Justice in Vilnius
[pic] APRANGA salon and shop at Jasinskio Str. in Vilnius
[pic] RADISSONN Hotel at Rotuses square in Vilnius
[pic] MEDIA shop and apartment building at Kalvariju Str. in Vilnius
[pic] MAXIMA shop at Ukmerges Rd. in Vilnius
[pic] OLYMPIC GYM Center in Vilnius
[pic] Administrative offices of BITE GSM in Vilnius and Kaunas
[pic] Administrative office of OMNITEL in Vilnius
-7- LIST OF LITERATURE
WEB: www. hronas. lt
-9-
CONTENS
INTRODUCTION…………………………………………………………………….. 2
QUALITY…………………………………………………………………….,………………….. 3
PRODUCTS………………………………………………………………… 4
WOODEN PRODUCTS……………………………………………………. 5
ALIUMINIUMPRODUCTS…………………………………………………………..….6
REFERENCES……………………………………………………………… 7
CONCLUSIONS…………………………………………………………… 8
LIST OF LITERATURE………………………………………………….. 9
VILNIUS COLLEGE OF CONSTRUCTION
Prepared by:
Lecturer:
Vilnius 2001 m. CONCLUSIONS
I prepared work about JSC “HRONAS “. This firm make and buildaluminium, plastic and wooden construction production. JSC “Hronas” was established in 1993. The Company started withimporting and installing plastic windows. Early in 1994 the new production
equipment was brought to and window production started in Lithuania. Duringseven years of strenuous work the Company has gradually introduced one ofthe most state-of-the-art aluminium, plastic and wooden constructionproduction processes in Europe. The Company has completed introduction of the quality management systemcorresponding with the requirements of international ISO 9002 standards. The company has really incredible environment of products: Multiple glassing This product has very good physical properties like:Thermal Insulation
Sound Insulation Light transmission Wooden products Wood is one of the oldest building materials used. Influenced byenvironmental changes, natural wood may be cracked and deformed. JSC “HRONAS” uses three-layer pre-glued squared beams of Karelian pinefor production of windows and doors. Plastic products JSC “HRONAS” uses three or five-chamber plastic profile and makewindows, doors and others constructions. Aluminium products Aluminium is a light, stable, rust-resistant and maintenance-freematerial. To produce aluminium products company Hronas uses section systemsof the world leader SCHÜCO. Unframed glass structures products Employees and customers of various offices, banks, and companies havebeen enjoying unframed glass structures for many years. Partitions anddoors made of unframed glass structures heartily invite you to enter, or atleast to take a peep at what is going on behind them. JSC “HRONAS “is consumer Profile Company so I think you must think whatproduct chose.
-8-