July-August 2006

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The Commercial Challenge

Commercial collection operations can be your bread and butter as well as your toughest challenge.

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By Lynn Merrill

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Unlike residential collection, in which you can send the truck on the same route every week and expect the same number of stops and tonnage, commercial collection can be a daily mixed assortment of service frequency, bin sizes, and collection challenges. From a 1.5-yard bin at a fourplex being serviced in a driveway by a rear-loader with a lift, to a 6-yard front-load bin in an enclosure next to a restaurant, to an apartment complex’s 450-gallon automated carts serviced in an alley, meeting your customer’s commercial collection challenges can cause cranial contortions.

Commercial collections can be defined in two ways: by the type of account serviced or by the type of truck and container used.

ention commercial collection in a group of solid waste managers, and some of them will define commercial collection as commercial stores, office complexes, strip malls, or factories. Apartment complexes, mobile home parks and other places where people live fit under residential collection. For others, if it’s serviced by a front-loader or rear-loader it’s defined as a commercial account, especially if they operate a cart system for their residential collections.

The Standard
Front-loader systems include the definitive equipment when it comes to commercial work, and most of the major body manufacturers include front-loaders in their product lineups. In selecting a front-load truck, several key elements should be considered. First is the capacity of the collection truck itself. Body sizes range from 32 cubic yards to 44 cubic yards. In selecting the size of body, the trade-off will be between the body capacity and the corresponding length of the truck. In most cases, it’s desirable to increase the payload as much as practicable, but you need to take into consideration the physical restrictions of the collection route. If a truck is too large, it may not fit everywhere it’s needed.

When talking about the capacity of the truck, it is important to understand that the total capacity of the truck is composed of both the body and the hopper. Most of the manufactures have moved to increase the capacity of the hoppers up to 12 cubic yards in order to accommodate 6- and 8-cubic yard bins. This additional hopper capacity allows much more flexibility in terms of handling larger bins, thus increasing route efficiency by reducing the number of services needed. For example, if a customer is receiving 4-yard service twice per week, a switch to an 8-yard bin once per week reduces one service stop on the route.

The second element should be the capability of the arm system. Most of the arms on today’s front loaders have a capacity of 8,000 lbs—more than adequate for the typical front load bins up to 6 cubic yards. But in some municipal operations, the movement to 8- and even 10-cubic yard bins can result in additional stresses on the arms. In these cases, it may be appropriate to specify 10,000-lb capacity. Also, the design of the arm and the hydraulic system is critical, too, especially when using higher-capacity bins. Arm systems should be reinforced so that stress cracks and curvatures are reduced.

In recent years, most of the manufacturers have placed greater emphasis on the use of higher-strength steels and reinforcements for body designs, packer blades, and arms in order to reduce premature failures. The challenge has been to improve overall payload while reducing the weight and improving the reliability of the vehicle. Focus has also been placed on stronger, more reliable cylinders and filtration systems that reduce contaminants in the hydraulic oil in order to reduce cylinder wear.

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Maintainability issues are also high on the list of key improvements. Manufacturers are emphasizing the use of steel hydraulic lines in lieu of hoses and are routing these lines so that they’re protected from damage. Standardized components that allow off-the-shelf repairs are also critical factors for ensuring greater reliability and maintainability of the front load fleet. The effects of these improvements are being demonstrated today in various cities.

Casper, WY
The city of Casper is a city of about 50,000 people near the center of Wyoming. The city has the exclusive residential collection rights within the city limits, and there is open competition for the commercial services. The city and one private hauler provide commercial service with a front-load collection system. There are also two private haulers providing commercial collection with a rear-load collection system. Next Page >

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