Jacopa’s expertise in sedimentation has produced an extensive range of clarifiers inclusive of, full, ¾ and half bridge types. Our standard range of scraper bridges are suitable for tank diameters from 5m up to 45m. Jacopa will service and refurbish most other types of bridge scrapers.

Jacopa supplies a range of scraper bridges for all types of circular settlement tanks. All structures are designed to withstand loads and stresses that may be placed upon the bridges, and are manufactured to the highest engineering standards for quality. All superstructures and underwater assemblies are protected to the customer’s specification.

Circular Tank Scraper Range from the most common form of circular tank scraper is the rotary half bridge design. This is mounted on a central slewing bearing supported on a tripod assembly. It is driven by an end carriage traveling around the tank’s periphery. In addition to the standard half bridge scraper.  ¾ bridge and full bridge scrapers are available plus twin and triple arm rotary machines.

Small bridges are manufactured using a beam structure whereas larger bridges may require a lattice or girder structure which offers strength without adding excessive weight. All bridges are manufactured in steel and finished to the customer’s specification design. The end carriage unit incorporates a small electric motor and gearbox which drive onto the peripheral wall via a cast iron wheel fitted with a polyurethane tyre.

The unit is designed to give a peripheral speed of between 1 and 2 metre per minute. Scraper blades are designed in a helical curve formation which maximizes scraping efficiency and thus sludge removal. Scraper blades are hinged 400 mm above the floor of the tank, providing a more effective sludge scraping mechanism. All rotating bridges can be fitted with any of the following types of channel cleaning systems:

• Rotary brushes
• Pressure washers
• Chains
• Fixed brushes

Jacopa can not only supply new tank scraper bridges but can also carry out complete refurbishment of any existing scraper bridge including rectangular designs.

Optional feature include scum collection and removal, control panel, access ladder, access gates mesh infill panels, weir plates, scum boards, McKinney baffle, Stukenberg baffles, EDI Drums, Auto Lubrication, and GRP Launder. A full installation, and commissioning service is available, along with removal of redundant scrapers.

Key Features & Benefits include:

• High Quality Construction
• Reliable Operation
• Suitable for Primary or Secondary Clarification
• Peripheral or Centre Drive
• Use on either Radial or Flat Bottomed tanks
• Surface scum removal (optional).