If you are in need of an under-hung crane, look no further than TC/American Crane Company. With almost 100 years of experience in the patented track industry, we are your go-to resource for under-hung crane solutions. Our patented track cranes are highly engineered to your exact specification. Reach out today and our team of industry experts will be happy to help in any way we can!
Single Girder Cranes
TC/American Single Girder Cranes have a single patented track bridge beam supported by two end trucks that operate on parallel patented track runways. For special applications the crane system may be provided with multiple end trucks and runways. A variety of hoists or grabs or specially built lifting devices may be mounted on a carrier on the bridge beam to provide the lifting capacity and access needed for the application.
Single Girder Crane Options:
Top View of Single Girder Crane, dual motor drives with bottom contact conductor bar, motorized interlocks both ends
Available in all of our 200, 325, 400 and 450 Series models
Multiple crane drive options
Hand Pushed (HP) – for light duty or infrequent use
Hand Chain (HC) Drive – for heavier duty, infrequent use, very low speed, precise positioning
Center Motor (MD) Driven (centrally located motor reducer with drive shafts to each end truck with a rubber or poly drive tire pressing against the bottom of the lower flange of the runway rail) – for conditions requiring critical positioning with minimized slip, high duty cycle useage or applications requiring a special motor that cannot be mounted on motorized trolley gearbox
Dual Motor (DM) Driven (each end truck provided with a motorized steel wheel trolley) – for most general purpose crane applications
Air Motor Driven (AMD) – usually for operation in hazardous atmospheric environments
Many speed options available for power driven cranes
Multiple End Trucks for special applications
Special Crane Bridges available for runway span greater than 60 foot
Crane Bridges may be notched for maximum treadline elevation and minimum headroom requirements
End Trucks may be furnished with special length wheelbase
Crane Bridge may be provided with interlock devices to allow the load to be transferred from crane-to-crane or crane-to-spur rail
Motor driven cranes can be supplied with brakes
Many control options (pushbutton or remote control via radio or infrared devices, special enclosures, acceleration/deceleration control devices, travel limit switches, rotating beacons, etc.)
Crane bridge provided with or without electrical conductor bars or festoon systems for power to the hoist and carrier
Double Girder Cranes
TC/American Double Girder Cranes have two parallel patented track bridge beams supported by end trucks that operate on parallel patented track runways. A hoist is mounted on a Double Girder Carrier that operates on each of the two bridge beams. In this manner the total lifted load is shared between the two bridge beams, allowing these beams to be shallower than the beam on a comparable single girder crane.
Advantages Over Single Girder Cranes
A TC/American Double Girder Crane offers the ability to position the hoist much higher, as compared to a single girder crane, for better high hook elevation. A double girder crane may also be able to span greater distances than a comparable single girder crane due to the extra strength provided by the second bridge beam.
Typical As Well As Long Wheelbase End Truck Configurations
A typical Double Girder Crane has a four- or eight-wheel end truck mounted on the end of each bridge beam. However, depending upon crane capacity, wheel load, runway rail capacity and bridge beam gauge (distance between the two bridges), it may be possible to provide long wheelbase end trucks with both bridges supported by the same end truck.
Options and Special Configurations
Double Girder Crane Systems may be provided with the same options as our Single Girder Cranes, including multiple end trucks and runways and interlock devices to allow the Double Girder Carrier to be transferred from crane-to-crane or crane-to-spur rails. Contact TC/American for special options or configurations.
Top and Side View of Double Girder Crane