Street Portal cranes are the perfect solution to efficient lifting and handling in many industry applications such as in open stockyards – many such applications are heavy duty and require fast speeds to achieve required cycle times. With the use of software tools we can provide an analysis of the necessary crane speeds, utilisation and load spectrum for the specified stock movements in a given application. By this method we ensure each crane is a bespoke solution to give reliable service through the appropriate duty classification of mechanisms, structures and electrical systems. Street pre-engineered Goliath cranes provide efficient and competitively priced solutions for manufacturing and maintenance applications on indoor and outdoor sites. A cantilevered beam construction is an option whereby the load can be transported outside the rail centres as may be required for roadside loading bays or when loads need to be transferred from one crane to another (see application picture).

Portal cranes range and options:

• Single girder capacities 0 – 25 tonnes
• Double girder capacities 0 – 200 tonnes
• Spans up 50 meters
• Options:
  • Cantilevers
  • Anti-sway control
  • Pendant, remote or cab control
  • Out of service wind speed anemometers
  • Storm anchors
  • Anti collision systems.
  • Supply via powered or non-powered cable reeling drums

Street semi-goliath cranes also known as semi-portal or semi-gantry cranes are a variation on the goliath crane concept and run on one floor rail and one high level rail mounted on columns or a building structure. Semi-goliath cranes are suitable for the applications described above for full goliath cranes but they bring unique advantages in certain applications. In particular they bring specific benefits where they are specified to run beneath overhead cranes in production facilities to give localised hook service to production cells down one side of a bay and the overhead crane provides general hook service of the whole bay. They may also operate under a gantry crane cantilever as shown in the adjacent application picture.

Street semi-Goliath cranes range and options:

• Single girder capacities 0 – 25 tonnes.
• Double girder capacities 0 – 200 tonnes
• Spans up 50 meters
• Options
  • Cantilevers
  • Pendant, remote or cab control
  • Out of service wind speed anemometers
  • Supply by powered or non-powered cable reeling drums.
  • Storm anchors
  • Anti collision systems.
  • Supply by conductor bars or festoon systems at the non-leg end.

Street pioneered the rail-less concept in which a Semi-Portal crane is equipped with polyurethane tyre wheels and guide rollers to allow the lower carriage to run directly on the factory floor without rails. Most factory floors are suitable for the tyre wheel loads which are similar to those of a forklift truck of similar capacity. Having no floor rail allows the greater flexibility required by many production processes and removes a potential trip hazard. Standard Street rail-less Semi-Goliath cranes are available in single and double girder construction in capacities up to 15 t.

Advantages of Street rail-less Semi-Goliath Cranes with ZX wire rope hoists.

• Extra hoist brake safety.
• Additional protection against overloading.
• No external hoist gears.
• Double band rope guide.
• Hoist gear inspection facility.
• Hoist motor coupling inspection facility.
• Hoist hand brake release
• Variable speed travel and traverse.
• No external trolley gears.
• Unique electrical protection and hours in service meter.

For more details of these advantages go to ‘ZX unique features’