• europages
  • >
  • COMPANIES - SUPPLIERS - SERVICE PROVIDERS
  • >
  • repairs of hydraulic components

Results for

Repairs of hydraulic components - Import export

  1. WELTE CARDAN-SERVICE GMBH

    Germany

    Verified by europages badge

    The Welte Group is a leading company in the sectors of articulated shafts and fluid and pipe-bending technology with several sites in Germany and Europe. Managing Director: Alfred Welte Dipl. Eng.(technical college) and Egon Welte Jnr. Dipl. Eng.(technical college) Founded in: 1921, Employees: Approx. 400, 15 sites in six countries. Express service within 24 hours. Our main priority also happens to be our guiding principle: "There is always a solution". Our product areas include: • Articulated shafts/cardan shafts • Pipe-bending technology • Hydraulics • Tubing technology • Screw fittings • Filters • Radiators • Automotive technology • Lifting gear • Eddy current brakes. Our products/services include: Articulated shafts/cardan shafts (repairs), repairs to hydraulic pumps, hydraulic components, repairs to transmission shafts for cars, DC hydraulic units, chloroprene hoses, transmission shafts for mechanical engineering, design of hydraulic units, hose lines, hydraulic screw fittings, hydraulic oil services and PTFE (PFA) tubing

  2. JASON HYDRAULICS

    United Kingdom

    Welcome to the Jason Hydraulics website. Jason Hydraulics have delivered expertise in the design, manufacture and repair of hydraulic cylinders and components for 45 years this year. Whether it’s bespoke cylinder manufacture, a standard model, parts or accessories that you require, you can be sure that with our comprehensive range, R&D and manufacturing expertise, Jason Hydraulics will be able to help. We frequently work with Original Equipment Manufacturers (OEM’s) to fulfil their hydraulic cylinder requirements. We’ve produced hundreds of thousands of hydraulic cylinders and rams for a wide range of industries and applications, everything from tail lifts to renewable energy equipment and much more. Read more about Jason Hydraulics.

  3. AL-QEMAM HYDRAULICS ENGINEERING

    Saudi Arabia

    Al-Qemam Hydraulics Engineering is leader in the design, overhaul, repair and sales of hydraulic components such as pumps, valves, hoses, fittings, cam-lock couplings, cylinders, steel pipes, etc.

  4. PERSHONA

    Croatia

    Installation hydraulic systems on varius ships, testing and service. Repair hydraulic and pneumatic components

  5. MBS-HYDRAULIK GMBH & CO KG

    Germany

    Verified by europages badge

    MBS Hydraulik is your strongest partner specialised in the development of hydraulic cylinders. Together, we will create the perfect product for your application. With a fresh outlook and the proven expertise of our colleagues, we will find new and innovative solutions for you. The goal: Enhanced performance and clear competitive advantage. We have already developed solutions for several applications, which you can find in our product range. Thanks to our modular system, these can be tailored to your individual requirements. We aim to handle materials and resources efficiently in every step of the working process. The main goal: Fewer costs thanks to reduced material usage and lower energy consumption. A lightweight vehicle saves material in production and energy during operation. We would be happy to explain our philosophy and demonstrate our way of working using concrete examples. Simply contact us.

Office Building Outline icon
A page for your business
Can you see this? Your potential clients will too. Join us now so you too can be visible on europages
  1. GRIBI HYDRAULICS AG

    Switzerland

    Verified by europages badge

    GRIBI Hydraulics has been successfully producing individual hydraulic solutions since 1969. We have recently made a cylinder configurator available on our home page. Our products: Pressure switches, manual valves, hydraulic blocks, hydraulic seals, hydraulic components, hydraulic gear pumps, hydraulic installations, hydraulic filters, hydraulic motors, hydraulic pumps, hydraulic valves, hydraulic cylinders, hydraulic oil coolers, hydraulic, special cylinder and control block repairs, etc.

  2. WILHELM WINTER GMBH & CO. KG

    Germany

    Verified by europages badge

    Production, supply and installation of machines, systems and components – installation of new systems (mechanics, hydraulics and electrics) – modernisation and conversion of production facilities, repairs and modifications – own production with modern machinery and extensive supply of standard spare parts for rapid response should the need arise (e.g. in the event of system downtime or damage).

  3. WEST SPARE PARTS

    Turkey

    Our company was established under the name of West Spare Parts with a German and Turkish investment partnership. Our company aims to be an end-to-end solution partner to our valued customers around the world in automotive and heavy vehicle spare part sector. By combining domestic production with European standards, we offer the best quality to our customers in the most economical way. In After Market products, we deliver spare parts of the world's leading brands such as Man, Mercedes Benz, Volvo, Scania, Iveco, Daf, Ford, BMC, ZF, Renault to our customers in time. Instead of short-term commercial expectations, long-term mutual cooperation and formations based on satisfaction are among the priority targets of our company. We are proud to offer a wide range of manufacturing and expertise in all spare parts and component accessories, engine parts, electrical parts, brake parts as well as hydraulic and pneumatic auxiliary parts. Apart from the standard catalog products, we evaluate all requests from you and have the appropriate ones produced by our manufacturer business partners in required standards. West Spare Parts also meets many special manufacturing demands in Europe. These include sheet metal forming, machining, mold parts, special fixture equipments used in automotive. We are ready to assist you at any time for your requests. Transmission parts and gears Differential parts Oil pumps Water pumps Repair kits Hydraulic pumps axles Cooling Aircompressors Brake and disc

  4. WROPOL ENGINEERING SP. Z O.O.

    Poland

    We have been operating since 1985 as a manufacturer of hydraulic actuators and units. We established the Wropol Engineering plant in Lutynia, in Dolnośląskie Voivodeship. The elements are manufactured on the basis of the documentation provided to us. Forthermore, our Research and Development Department creates Wropol's original designs. Our production has been meeting strict standards of the PN-EN ISO 9001: 2015 Quality Management System since 1988. We manufacture ready-made and custom hydraulic actuators. We supply standard actuators, Cr rods, pipes and eartips. Our range further includes: - briquette presses (swarf and chips of non-ferrous metals and aluminium), - hydraulic power supplies (for mechatronic machines), - specialized machinery and equipment, - hydraulic blocks, - hydraulic valves (ZD, ZZ, ZDZ, ZSZ). We also offer actuator repair service. Only certified substitutes are used for maintenance work. We are able to upgrade the system to meet the requirements of your industrial plant. Hydraulic power units are mainly manufactured on Hydac, Parker, Bosch-Rexroth and Kawasaki Hydraulics components. We are in constant cooperation with research centres, therefore ensuring the highest quality of all our projects. We invite you to contact - Wropol Engineering company from Lutynia.

  5. ZAKLAD SLUSARSKO-TOKARSKI RAMY BLACHARSKIE TAPKA

    Poland

    Locksmith and Turnery Works TAPKA&TAPKA has been successfully operating on the market since 1968. We undertake both individual and multi-series orders. We provide services in the field of CNC machining, turning, milling, drilling, boring, chiselling, surface grinding, shafts and holes grinding. For the convenience of our customers we provide a complete package of services. Thanks to an extensive machine base and professional employees we manufacture lightweight steel structures, parts for railway machines and parts of agricultural machines, as well as power hydraulics components, devices and structural elements of machines that meet all standards. We employ our own design engineers and the work is performed on the basis of our own or entrusted designs. Our customers are mainly automotive, agricultural and railway companies for which we manufacture spare parts and production line equipment. We are a manufacturer of universal frames for the repair of passenger cars, vans and sheet metal plates for repairing trucks that are valued on the market and used by many body shops. We manufacture robust and easy to use devices which allow to perform even the most complicated and advanced sheet metal work. The repair frames with our company’s logo are reliable equipment that provides invaluable services in the reconstruction of bodies of damaged vehicles. We work with the EU and non-EU contractors.

  1. M&R HYDRAULICS LTD

    United Kingdom

    M&R Hydraulics have been providing hydraulic solutions & support services for a multitude of clients’ for over 30 years. Here at M&R Hydraulics we have extensive experience of meeting the needs of our clients across a broad range of industrial applications. We offer a service that is a vital component in the smooth running and cost-effectiveness of many plant operations in diverse industries, including: - • Marine • Automotive • Paper manufacturing • Recycling • Aerospace • Plant & construction • Manufacturing • Chemical processing Hydraulic Cylinder Workshop - Our dedicated hydraulic cylinder workshop and fabrication facilities contain CNC machining, turning, milling equipment & a suite of metal fabrication, welding & assembly services. The hydraulic workshop equipment can safely dismantle, reassemble and repair a variety of cylinder sizes of 11+ meters & a max cylinder bore of 1 meter. Hy-Pro Filtration - M&R Hydraulics are the UK stockist, distribution & service centre for Hy-Pro high-performance hydraulic & lubrication filtration products. Hy-Pro high-performance hydraulic filters offer improvements in capture and retention efficiency. Tel: 0151 357 1909 Sales@mrhydraulics.co.uk www.mrhydraulics.co.uk

  2. GRICES HYDRAULIC CYLINDERS SRL

    Italy

    For over 35 years, Grices Hydraulic Cylinders has been designing and manufacturing standard hydraulic cylinders and oil hydraulic cylinders (ISO, DIN), welded, compact and special cylinders to customer and engineering office order. Grices epitomizes Made in Italy, and proposes: on-line configurators; international distribution; direct technical support; hydraulic testing on the entire range; interchangeability with the main manufacturers' products including Rexroth, Parker and Atos; a repair service; a component and seal kit.

  1. NELSON STOKES LTD

    United Kingdom

    NELSON STOKES LTD. are manufacturers of the largest all makes range of brake hoses. We manufacture hydraulic brake hose and brake hose assemblies, brake cylinder repair kits and brake seals in England. The company with over 40 years BRAKE HOSE experience, produces quality brake products you can rely upon and supplies quality brake parts world wide for the automotive aftermarket, at competetive prices. We offer over 6, 500 part numbers to choose from, which together cover 95% of the car parc of UK, European and Japanese built cars. This range is constantly growing. NELSON STOKES LTD. have an extensive range of repair kits and components, the majority of which are made in our UK factory. NELSON STOKES LTD. assembly franchises currently operate in numerous countries, from France to New Zealand, supplying Nelson products direct to local users. A modest range of hoses for USA built vehicles is also available. NELSON STOKES LTD. are a ISO 9001: 2008 and ISO 14001: 2004 registered company.

  2. MAVERICK MACHINE & HYDRAULICS MISSISSAUGA

    Canada

    MAVERICK MACHINE & HYDRAULICS Mississauga | Hydraulic Cylinder Repair / ManufacturerMaverick Machine & Hydraulics Mississauga Fast, Fair & Flexible strategy, we have been successfully growing by treating people the way we want to be treated and being true to our values. Manufacturer of Hydraulic Cylinders and distributors of Hydraulic Components as well as Repair Hydraulic Cylinders. CNC turning and CNC milling. MAVERICK MACHINE & HYDRAULICS is a customer-focused manufacturer and distributor of quality crafted hydraulic cylinders, precision machining and value added services. Our commitment to providing quality, value and service with our on time every time attitude, has distinguished us as a leader in our industry serving a growing number of satisfied customers from coast to coast across North America. Located right at the edge of Canada’s largest city, MAVERICK MACHINE & HYDRAULICS Mississauga. MAVERICK MACHINE & HYDRAULICS provides hydraulic components to Original Equipment Manufacturers (OEM) of hoist systems, material handling equipment, tow truck units.

  3. OUEST FLEXIBLES

    France

    Ouest Flexibles is a fast-growing company founded in 2001 located in Césson-Sévigné near to Rennes in Brittany, western France. We specialise in the sale and repair of hydraulic hoses.We deal directly with customers on-site and we understand what they need. We manufacture and replace hydraulic hoses on-site, 24 hours a day, 7 days a week. You can be sure to receive personalised advice and technical services. In order to avoid incidents with your equipment, we can offer a preventative maintenance service for your plant and equipment. Our extensive catalogue includes over 1400 different items: •twin braided hoses in sizes from 1/4 to 2 inch• quadruple-braided in ¼ to 2-1/2 inches• all size of rigid lines from 49/40• single and twin thermo braided hose• single and twin thermo armoured hose• hoses for pressure washers from ¼ to ½ inch• sale of washing components, lance, pistol and roto-brushes.

  4. INNOVATIVE HYDRAULIC DESIGNS (I H D)

    United States

    We specialize in engineering, design, and manufacturing of heavy-duty hydraulic and mechanical components as well as complete turnkey systems exclusively for industrial applications. Since 1996 we have been providing state-of-the-art technology, equipment and a wide range of services to our customers worldwide including installation, commissioning, operation, training, maintenance, and repair. We also offer consulting services, bid document preparation or review, studies & analysis and expert witness testimony. Our product offering includes hydraulic pumps (vane and piston types), LSHT radial-piston hydraulic motors (drop-in replacements for Hagglunds Compact, Marathon and Viking series), gear reducers (planetary, epicyclical and parallel shaft), industrial vibrators, railcar vibrating platforms, custom hydraulic cylinders, bladder type accumulators, fluid power generators (hydraulic power units), multi-disc brakes and hard-to-find spare parts for Flender Hydrex hydraulic motors.

  5. ALCAR S.R.L.

    Italy

    Alcar Srl is a company that sells spare parts for agricultural machinery and tractors new generation ago. Also sells spare parts for vans, trucks and many other vehicles original or alternative, spare parts for engine and hydraulic components of earth moving machines. Alcar Srl with the wide range of spare parts can meet the needs of all its customers, consisting mainly distributors of auto parts, large construction companies transportation companies, major players in the agricultural sector, large motor repair shops and many other occasions.

  6. SWINTON ELECTRO-PLATING LTD

    United Kingdom

    Metal Finishing Services. Manchester based providing Hard Chrome coatings up to 8.5 metre lengths for abrasive wear-resistance. Electroless Nickel coating service to provide high, corrosion resistance. Serving all engineering industries including Automotive, Rail, Defence, Aerospace, Hydraulics, Oil & Gas, Chemical, Pharmaceutical, Paper & Board, Printing - and many more OEM's. Also providing a repair service to reclaim worn components to extend the service life of Production Equipment in any Manufacturing sector. Mould & Press Tools are a speciality utilising in-house facilities and expertise. All metallic machine parts can be coated for protection and to provide a surface finish that gives low friction and extended life. Highly polished or textured surfaces can be achieved to suit individual applications. One off, unique, components or large production batch coatings can be accommodated. Preparation by Grit Blasting, Polishing and Cylindrical grinding also available on-site.

  7. ANTECH HYDRAULICS LTD

    United Kingdom

    Hydraulic equipment suppliers. Design concept to component part, Antech UK offers a full hydraulic service. We are distributors of Kawasaki, Staffa, Schroeder, Hawe, LJM, RMF, Sterling and Fosse products. We specialise in system design and hydraulic components supply. Antech Hydraulics also manufacture bespoke hydraulic solutions. Offering products and solutions to suit your requirements, you can be confident our staff have your interests and budget at heart.Based in the Lancashire, North West England we are a leading provider of turnkey solutions from Design, Maintenance, Repair and Installation of hydraulic systems to multiple industries and applications. We offer a complete service for the maintenance and installation of all hydraulic components including Motors, Pumps, Cylinders, Filtration, Valves, Hoses and Fittings. As well as providing a support service to keep your business running smoothly, we offer specialist skills for the design, installation, testing and commissioning of hydraulic circuits or their components.

  8. SC ELIVSEL TRADE SRL

    Romania

    Market leaders in the design, manufacture and supply of mobile hydraulic solutions. Hydraulic-units is specialized in the construction and delivery of hydraulic installations, components and drives. We operate in different industry sectors like agriculture, shipping and mining. Hydraulic-Units is a hydraulic engineering company that has been meeting the needs of its customers in various industry sectors, such as the mobile and industrial market. Using the know-how of our engineers, we are able to offer custom designed hydraulic systems and units to our customers. Hydraulic-Units offers a number of services: -Design and engineering -Preventive Maintenance and Repair -Distribution of Hydraulic Parts and Products We help keep hydraulic industry running smoothly by providing high quality, high performance products and systems. When you delegate your research and needs for components, accessories and pipelines to us, you will be offered solutions tailored to your needs that suit the application. The experience of our technicians will bring you certain peace of mind. Whether you are a manufacturer or a user, you can definitely trust us for your supply of hydraulic and electrohydraulic products. Whether you are looking for turnkey or collaborative services, you can count on us.

  1. FITINPART.COM

    Singapore

    Automotive parts online. More than 40, 000 items in our inventory.Brakes- brake pads, brake shoe, shoe lining, brake disc rotorsBrake system and components, Transmission parts, repair kitsFull range of filters for personal, commercial and heavy duty vehicles - air filters, oil filters and elements, fuel filters petrol and diesel injectors hydraulic filters, transmission filters, cabin air filters Wiper blades, automotive belts. Special volume discount for resellers and mechanic shops.Free shipping option available

  2. GEAR PUMPS DISTRIBUTORS

    United Kingdom

    Gear Pump Manufacturing (Pty) Ltd is a wholly owned subsidiary of DOSCO GPM HOLDINGS GROUP. The DOSCO GPM GROUP specialises in the manufacture and repair of hydraulic pumps and motors. GPM is located in Cape Town, South Africa and has been involved in the manufacture and assembly of SAE mounted cast iron pumps and components since 1985. Approximately 70% of our production is exporter to countries in North and South America, Europe, the Middle East Asia, Africa and Australia. Quality Assurance We havee been accredited in accordance with the ISO 9001-2000 standard since 1992. Our quality management system makes use of statistical analyses to determine manufacturing process capability. The stability of manufacturing processes is continously monitored and managed via machine run charts. In line with our technology investment philosophy, we have recently invested in a 3 dimensional co-ordinate measurement machine.

  3. PLAN PROFILING LTD

    United Kingdom

    Cutting Services, Other construction work involving special trades. Established since 1977, we specialise in flame-cut profiling and profile burning of carbon steels for a varied customer base throughout the UK. We have experience in a diverse range of end user applications, including materials handling, earth moving machinery, automotive, plant, lifting, hydraulic systems, structural, construction, architectural, street furniture, horticultural, agricultural, forestry equipment, ship repair, marine applications and railway components.

  4. M&R HYDRAULICS LTD

    United Kingdom

    Here at M&R Hydraulics we have extensive experience of meeting the needs of our clients across a broad range of industrial applications. We offer a service that is a vital component in the smooth running and cost-effectiveness of many plant operations in diverse industries. M&R Hydraulics providing hydraulic solutions & support services across the UK for over 30 years & our comprehensive services include: - Cylinder Repair Services: - Our fully equipped cylinder workshop contains a disassembly bench, CNC machining, turning, milling equipment & a suite of metal fabrication, welding & assembly services. The workshop equipment can safely dismantle and inspect a variety of cylinder sizes of 11+ meters & a bore of 1 meter. Hydraulic Filtration Services: - M&R Hydraulics are the UK stockist, distribution & service centre for HY-PRO high-performance filtration products - we can provide vacuum dehydration, marine & industrial diesel filtration systems, varnish removal systems, portable filtration carts & filter elements. Hydraulic Lifting Equipment: - M&R Hydraulics are the sole distributor for Larzep 700 bar heavy lifting equipment in the UK. Hoses & Fittings: - Our trade counter is backed up by fully skilled & experienced staff that are able to make hoses whilst you wait or supply dedicated components from our extensive warehouse of over 200, 000 parts. We also provide 24/7 on-site emergency mobile hose van service.

  5. GENERAL TURBOS

    Greece

    GENERAL TURBOS offers for sale original, new and second hand turbocharger's components as well as offers service, inspection, installation and repairs of every turbocharger type. Servicing Turbochargers is a highly technical operation requiring the necessary technical equipment, precision, know-how and the experience of highly qualified engineers. Our engineers have constant education, lengthy relation with us and experience in an extensive range of brands and models, along with the executive know-how we are competitive, reliable and flexible.We can undertake every technical activity such as: Overhaul/ servicing, Turbochargers repairs, Dynamic balancing, Reconditioning of turbocharger bearings and oil pumps, Steam cleaning, Glass bead blasting, Micro-blasting, wet blasting, Blade weld repair, General Inspections, Ultrasonic Inspections, Ultraviolet crack detection, Hydraulic testing.

  6. STRAATMAN B.V.

    Netherlands

    Machinefabriek L. Straatman was established in 1902 by Mr. L. Straatman. In Dordrecht the company rapidly grew in the field of kettle construction and ship repairs. In the 90′s the company was taken over by “Van de Graaf’s Werktuig- en Constructiebouw BV”. In 1996 Machinefabriek L. Straatman moved to Zwijndrecht. In 2004 Straatman took over all the activities of “Van de Graaf’s Werktuig- en Constructiebouw BV”. For over 50 years we fabricated hydraulic presses, heavy winches and custom build projects. In 1965 we entered the dredging market by developing a steel plate ball joint for floating pipelines together with Bos&Kalis. This company also ordered the first drag heads. Through the years we developed our dredging program and we now deliver dredging components all over the world. In 1974 we started the production of container handling frames, the so called spreaders. The spreader was developed with the advice of ECT. One of our best known products is developed for the dredging industry. It is a bow coupling installation for hopper dredgers. With this installation a quick connection can be made between the ship and the floating pipeline. Until now we have delivered hundreds of bow coupling installations all over the world. To increase our product range we developed a complete range of quick-release towing and mooring hooks. The quick release hooks fits perfectly in our product range and it is a well known product of us around the world.

  7. HYCON HYDRAULIC SYSTEMS

    Australia

    Hycon Hydraulic Systems provides quality assured repair services for pumps, valves and motors used in high performance hydraulic systems. The Perth based family owned business has been a preferred supplier to Australia’s contract mining, construction and forestry industries for over 30 years. Hycon Hydraulic Systems is an authorised Australian distributor for genuine Kawaski precision machinery mobile components. Hycon offer service exchange for Hitachi, Liebherr, and O&K machines. When you need an expert to provide quality hydraulic repair parts, Hycon Hydraulic Systems is here to help.

  8. KWINGTONE AUTO ENGINEERING SHANGHAI LTD.

    China

    We are specialized in producing automotive maintenance and repair equipment and corresponding mechanical components and parts. We have a complete line of products concentrating on the design and manufacturing of hydraulic lifting products. All core components and parts are designed and manufactured in house which guarantees the quality and supply effectively.We have passed the certification of ISO9001: 2008 International Quality System and the CE certification conforming to the newest 2006/42/EC safety directives. Our mission is to satisfy customers and partners with reliable quality, competitive products and excellent services. Our markets have spread over 60 main developing and developed countries and regions with our main market in EU, South American and South-east Asia. In domestic market, we are listed equipment supplier for Exxon Mobil, Valvaline, Ferrari & Masarati, Volvo and Sinotruck, etc. Our market philosophy is to develop together with our customers and partners.

  9. MÉCA-FLUID

    Belgium

    Méca-Fluid supplies equipment for controlling and managing all types of fluids. Our initial business was to make prototypes of automated machinery, but very quickly it became three distinct but complementary branches. By the eve of the new millennium, 3 business lines stood out within Méca-Fluid: Studies, engineering and trade; workshop design, construction and repairs; on-site installations, renovation and maintenance. These 3 business lines concern precise fields in which we are specialists: Industrial valves (manual, pneumatically and electrically motorised); pneumatic components (actuators, air purification, …) and compressed air networks. Hydraulic equipment and instruments.

  10. ENTIRELY SHIPPING AND TRADING LTD.

    Romania

    Entirely Shipping & Trading Ltd. Company is specialized in high-quality repairs and services for sea going and off-shore vessels while they are on dry dock, under cargo operations, navigation or afloat.Our highly-motivated personnel (with years of experience), in combination with tools and a well-equipped workshop, guarantee that our services are carried out as per industry standards, fully recognized and approved by Lloyd’s Register. Based on your description of the issues to be solved on board the vessel, we’ll gladly send you our offer.We are able to provide following services to our customers: In-Site Machining Services: • Machining of crankshafts on-site or in workshop• Line Boring of engine bedplates/blocks on-site or in workshop• Laser Alignment of machinery and couplings• Annealing/Heat Treatment of hardened shafts/journals• Checking of machinery after realignment• Large scale Flange Facing and other surface machining and milling• Machining of stern tubes or rudderstock tunnels• Boring of any size coupling holes including taper holes• Metal Stitching of broken components (blocks, bedplates, etc.)Overhaul & Repair Services• Main and auxiliary diesel engines• Governor• Turbochargers; Overhauling/Balancing• Steel Repair and fabrication (piping, hull, hatch covers)• Chock-fasting and Alignment• Main propellers and tunnel thrusters• Shaft line, rudders• Valves, pumps, COW machines• Deck machinery; winches, cranes, etc.• Hydraulic systems• Electrical and automation

Request for quotes

Create one request and get multiple quotes form verified suppliers.

  • Only relevant suppliers
  • Data privacy compliant
  • 100% free