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35-542: Merlo may refer to: Merlo (company) , a manufacturer of telescopic handlers based in Italy Merlo Partido , Buenos Aires Province, Argentina Merlo, Buenos Aires , head town of Merlo Partido Deportivo Merlo , football team based here Merlo Station High School , in Beaverton, Oregon Villa de Merlo , San Luis Province, Argentina People with

70-500: A crane to put a drum on the back of the truck. It was less expensive than a cement truck dedicated to only carrying cement and allowed the trucks used to continue to be adapted for other things. Concrete mixers have continued to advance. Recently, research detailing a forward simulation model of an energy-saving concrete mixer using hydraulic technology was released based on Matlab/Simulink technology. Today's market increasingly requires consistent homogeneity and short mixing times for

105-464: A crane. Something that was unheard of previously. Their agility, flexibility and maneuverability soon found favour with users worldwide. The year 2000 saw the introduction of the unique Merlo Multifarmer, bring together a telescopic handler design with that of a tractor. Fitted with a rear 3 point linkage, PTO (power take off), drawbar/trailer hitch and additional hydraulic services the Multifarmer

140-488: A low-hinged boom at the rear of the chassis. A true 360 degree field of vision was available to the operator. Another industry first enhancing safety and operator comfort. In 1991 the revolutionary rotating handler the ROTO was launched. With the ability to deploy stabiliser legs (early models featured 6, soon reduced to 4 when tests showed that was all that was required) these high reach machines could lift, extend and rotate like

175-576: A pick-up truck and batched from smaller batching systems. The mixing trailer system is popular with rental yards and building material locations, which use them to supply ready-mix to their regular customer base. Metered concrete trucks or volumetric mobile mixers contain concrete ingredient materials and water to be mixed on the truck at the job site to make and deliver concrete according to the amount needed. For smaller jobs, such as residential repairs, renovations, or hobbyist-scale projects, many cubic yards of concrete are usually not required. Bagged cement

210-441: A revolving drum to mix the components. For smaller volume works, portable concrete mixers are often used so that the concrete can be made at the construction site, giving the workers ample time to use the concrete before it hardens. An alternative to a machine is mixing concrete by hand. This is usually done in a wheelbarrow; however, several companies have recently begun to sell modified tarps for this purpose. The concrete mixer

245-414: A rotating drum mounted on an operator-driven cab-mounted chassis frame fitted with a loading bucket. The operator of the self-loading concrete mixers batches and introduces the ingredients required for mixing concrete (cement, stone aggregates etc.) into the drum using the loading bucket. The drum is usually reversible type, tilt type or a combination of both. A predetermined volume of water is discharged to

280-400: A standstill as his funeral took place in the city centre. Dumpers: DM DBM lift trucks CEM P23.6 P26.6 P28 P30 P32 P34 ROTO Concrete mixers A concrete mixer (also cement mixer ) is a device that homogeneously combines cement , aggregate (e.g. sand or gravel), and water to form concrete . A typical concrete mixer uses

315-414: A useful load. Concrete mixers generally do not travel far from their plant, as the concrete begins to set as soon as it is in the truck. Many contractors require that the concrete be in place within 90 minutes after loading. Some trucks in dry climates are equipped with the capability of adding water in spray form during the trip, especially on long trips. If the truck breaks down or for some other reason

350-511: Is 10 cubic yards (7.6 m ). Most concrete mixers in the UK are limited to a speed of 90 kilometres per hour (56 mph). A variant of standard concrete transportation is the concrete (or, cement) mixing trailer. These small versions of transit-mix trucks are used to supply short loads of concrete. They have a concrete mixing drum with a capacity of between 0.76 and 1.34 cubic metres (1 and 1.75 cu yd). Cart-aways are usually pulled behind

385-484: Is different from Wikidata All article disambiguation pages All disambiguation pages Merlo (company) Merlo was founded in 1911 in close to the city centre of Cuneo by Giuseppe Amilcare Merlo. In the beginning, the company worked in a small workshop & blacksmith, famous for their ability to repair almost anything. In 1948 the Merlo family children got involved with the company's management. In 1964

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420-421: Is readily available in small-batch sizes, and aggregate and water are easily obtained in small quantities for the small work site. To service this small-batch concrete market, many types of small portable concrete mixers are available. A typical portable concrete mixer uses a small revolving drum to mix the components. For smaller jobs the concrete made at the construction site has no time lost in transport, giving

455-549: Is the tare weight of the truck. "Rear discharge" trucks require both a driver and a "chuteman" to guide the truck and chute back and forth to place concrete in the manner suitable to the contractor. Newer "front discharge" trucks have controls inside the cab of the truck to allow the driver to move the chute in all directions. The first front discharge mixer, patented in 1974, was designed and built by Royal W. Sims of Holladay, Utah, United States. Concrete mixers are equipped with two or more axles. Four-, five- and six-axle trucks are

490-574: The SM 30 . Featuring 4 wheel drive, 4 wheel steering and 4 equal wheels the SM30 was much more advanced than the offerings from the competition which tended to utilise a rear wheel steer and unequal wheel configuration. The company continues to specialize in telescopic handlers as a market leader in design and innovation. In 1987 the company released the Panoramic XS telescopic handler with a side engine and

525-532: The company took a new direction of production under the direction of Amilcare Merlo & his sister Natalina with the formation of Merlo Group. The first product from the newly formed Merlo Group was the DM Dumper in 1964. In 1966, the company built their first DBM self propelled concrete mixer concrete mixers featuring a fully hydrostatic drive train. In 1970 came the first Merlo off-road fork lift truck . In 1981 Merlo produced their first telescopic handler,

560-454: The concrete hardens in the truck, workers may need to enter the barrel with jackhammers or the company has to scrap the entire drum. Stephen Stepanian filed a patent application for the first truck mixer in 1916. Trucks weigh 9,100 to 14,000 kilograms (20,000 to 30,000 lb), and can carry roughly 20,000 kilograms (40,000 lb) of concrete although many varying sizes of mixer truck are currently in use. The most common truck capacity

595-461: The concrete is pushed deeper into the drum. This is the direction the drum is rotated while the concrete is being transported to the building site. This is known as "charging" the mixer. When the drum rotates in the other direction, the Archimedes' screw -type arrangement "discharges", or forces the concrete out of the drum. From there it may go onto chutes to guide the viscous concrete directly to

630-578: The concrete. The drum is traditionally made of steel but on some newer trucks, fibreglass has been used as a weight reduction measure. Most cement trucks weigh a substantial amount empty, meaning they have very heavy tare weights. United States weight laws under the Federal Bridge Formula (FBF) require a three-axle ready mixed concrete truck to weigh 48,000 pounds (22,000 kg) or under. This leaves only 18,000 pounds (8,200 kg) for concrete to be carried, as 30,000 pounds (14,000 kg)

665-596: The construction of the Wilson Dam (six 2-yard and two 4-yard mixers, at the time the largest single installation of the largest concrete mixers in the world), the first stadium of the Ohio State University and the Exchequer Dam . Roscoe Lee was granted a patent in 1934 for his transit concrete mixer design. This design made it possible for new trucks to be turned into concrete mixers by using

700-428: The drives are known as " tag axles " or "booster axles", and are often equipped to turn opposite to the steering axle to reduce scrubbing and automatically lift when the truck is put into a reverse gear. Tractor trailer combination mixers where the mixer is installed on a trailer instead of a truck chassis are used in some jurisdictions, such as the province of Quebec where even six-axle trucks would have trouble carrying

735-660: The drum via a water dispensing unit. The mixture is rotated at mixing speeds within the drum until the concrete discharges via a fitted chute. Self-loading concrete mixers are suited for construction sites where concrete batching plants are unavailable, underfoot conditions are not suited for concrete transit mixer trucks or labor availability is scarce or constrained. Applications include urban and rural construction, concrete pavement maintenance, bridge and tunnel construction, township-level highways construction, foundation construction, national defense facilities, construction of high-speed railways, etc. Operating concrete mixers correctly

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770-401: The industrial production of ready-mix concrete , and more so for precast/prestressed concrete. This has resulted in refinement of mixing technologies for concrete production. Different styles of stationary mixers have been developed, each with its own inherent strengths targeting different parts of the concrete production market. The most common mixers used today fall into three categories: All

805-445: The job site. If the truck cannot get close enough to the site to use the chutes, the concrete may be discharged into a concrete pump , connected to a flexible hose, or onto a conveyor belt which can be extended some distance (typically ten or more metres). A pump provides the means to move the material to precise locations, multi-floor buildings, and other distance-prohibitive locations. Buckets suspended from cranes are also used to place

840-407: The material has already been mixed prior to loading. The concrete mixing transport truck maintains the material's liquid state through agitation, or turning of the drum, until delivery. These trucks have an interior turbine that pushes the mixed concrete up against gravity inside the drum. The interior of the drum on a concrete mixing truck is fitted with a spiral blade . In one rotational direction,

875-431: The mixer styles have their own inherent strengths and weaknesses, and all are used throughout the world to varying degrees of popularity. Special concrete transport trucks (in-transit mixers) are made to mix concrete and transport it to the construction site. They can be charged with dry materials and water, with the mixing occurring during transport. They can also be loaded from a "central mix" plant; with this process

910-558: The mixing drum for final mixing. They can be unloaded by tilting the drum. In hand-feed concrete mixers, cement, sand and other aggregates are directly added to the mixing drum manually. Both of these types of concrete mixers are popular in construction activities in Africa, some Middle Eastern countries and in the Indian subcontinent. Self-loading concrete mixers are unique machines designed to batch, mix and transport concrete. They consist of

945-560: The most common, with the number being determined by the load and local legislation governing allowable loads on the road. The axles are necessary to distribute the load evenly, allow operation on weight restricted roads, and reduce wear and tear on normal roads. A two- or three-axle truck during the winter when road weight limits are reduced has no usable payload in many jurisdictions. Other areas may require expensive permits to operate. Additional axles other than those used for steering ("steers") or drivetrain ("drives") may be installed between

980-498: The same term [REDACTED] This disambiguation page lists articles associated with the title Merlo . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Merlo&oldid=1126437303 " Categories : Disambiguation pages Place name disambiguation pages Disambiguation pages with surname-holder lists Hidden categories: Short description

1015-415: The steers and drives, or behind the drives. Mixers commonly have multiple steering axles as well, which generally result in very large turning radii. To facilitate maneuvering, the additional axles may be " lift axles ", which allows them to be raised off the ground so that they do not scrub (get dragged sideways across the ground) on tight turns, or increase the vehicle's turning radius. Axles installed behind

1050-831: The surname [ edit ] Beatrice Merlo Carmelo Merlo Claudio Merlo Enrica Merlo Enrique Gorriarán Merlo Francisco de Merlo Francisco López de Osornio Merlo Gastón Merlo Gianni Merlo Giuseppe Merlo Harry Merlo Ismael Merlo Jaime Jiménez Merlo Janet Merlo Jim Merlo Johann Jakob Merlo John Merlo Larry Merlo Liliana Merlo Luis Merlo Madeline Merlo María Luisa Merlo Maria Teresa Merlo Michele Merlo (cyclist) Michele Merlo (singer) Miguel Antonio de Merlo Mike Merlo Nelson Merlo Néstor Merlo Omar Merlo Paul Merlo Reinaldo Merlo Rick Merlo Yoan "ToD" Merlo Carmen García de Merlo See also [ edit ] Merlot Topics referred to by

1085-403: The workers ample time to use the concrete before it hardens. Portable concrete mixers may be powered by gasoline engines, although it is more common that they are powered by electric motors using standard mains current. These concrete mixers are further divided based on their loading mechanism. Cement, sand and other aggregates are loaded in a hydraulically operated hopper and then poured into

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1120-535: Was and remains the only telescopic handler with a rear 3 point linkage. At the agricultural exhibition Agritechnica in 2013 Merlo displayed a Hybrid powered handler. Ahead of its time it caught the eye of the DLG judges whom awarded it a Gold medal for its innovation and design. During late 2021 Merlo previewed its all new Merlo eWorker, a fully electric compact telescopic handler. Featuring a 2.5 ton lift capacity and 5 meters of reach this emissions free electric powered model

1155-528: Was horse-drawn and called 'Mortar Mixer'. It worked by replacing the front wheels with a large drum that held large paddles for mixing the cement. 1925, at least two mixers, built 25 years ago, were still in use (serial numbers 37 and 82). The Smith Mascot in essence has the same construction of the small mixers used today. In the 1920s, the T.L. Smith Company in Milwaukee built the world's largest concrete mixers. Mixers of this company were used e. g. for

1190-497: Was invented by Columbus, Ohio industrialist Gebhardt Jaeger. One of the first concrete mixers ever was developed in 1900 by T.L. Smith in Milwaukee . The mixer already exhibited the still common basic construction with a tiltable conical drum (as double cone at that time) with blades. On February 9, 1904, the first portable concrete mixer was patented by Richard Bodlaender, an inventor from Breslau, Germany. This concrete mixer

1225-469: Was the first step in Merlo Group's Generation Zero programme of emission free vehicles. November 2022 saw the passing of Amilcare Merlo, the company founder and President. A true gentlemen, innovator and engineer his funeral was attended by family, staff, local people, representatives from local government, industry, charities and organisations that Mr Merlo was connected with. The city of Cuneo came to

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