Free Standing 1/4 Ton Jib Crane - Gorbel

Free Standing Jib Cranes are Gorbel’s most versatile crane. They are perfect to place underneath large bridge cranes, in open areas where they can serve several work stations, in outdoor applications such as loading docks, or in machining and assembly operations where they can be overlapped with other jibs to provide staged operation.

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Detailed Description for Free Standing 1/4 Ton Jib Crane - Gorbel

 

FS300

(Base Plate Mounted):

·          Mast is just bolted to the foundation, therefore can be easily relocated in the future

·          Only one concrete pour is required

·          A hexagonal base plate is welded to the base of the mast pipe, and is reinforced with six gusset plates equally spaced around the circumference of the mast

·          The base plate is secured via anchor bolts to a structurally adequate, reinforced foundation

·          Utilizes full gussets in continual contact with the base plate. Other manufacturers typically utilize open gussets, which can cause an undesirable, warped effect

 

FS350

(Insert Mounted):

       Mast is secured into the foundation (permanently embedded)

       Takes up no floor space around the mast (so it is suitable for installation where a base plate and gussets would cause interference to the work area)

       Has a square base plate, 3” larger on all 4 sides than the mast diameter, welded to the mast

       Base is secured with anchor bolts to the first concrete pour, made below floor level

       The second pour, made to floor level, provides support for the mast pipe

       Usually the trickiest to install of the three types of FS cranes

FS350S

(Sleeve Insert Mounted):

       Mast of the FS350S is secured into the foundation via a sleeve

       Has no gussets or base plate to take up floor space, but, unlike the FS350, can be easily relocated at a later date. (The sleeve, however, is permanently embedded in the foundation.)

       Permits easier leveling during installation than the FS350

       Sleeve is secured with anchor bolts to the first concrete pour, made below floor level

       Second pour, made to floor level, provides support for the sleeve and mast pipe

       Steel wedges are utilized in plumbing of the mast

 

 

Crane Type

Best Use

Standard Capacities

Standard Spans

Motorized Option

Special Foundation

Requirements

Beam Type

Free Standing I-Beam Jibs

Heavy duty, high

productivity applications

1/4 ton -

5 tons

8’- 20’

l

Some designs

Structural beam

Gorbel’s Advantage:

 Ease of Operation

·          Allows operators to position loads precisely, effortlessly and efficiently

·          Precision tapered roller bearings in top pivot and trunnion assemblies provide smooth operation and long life

·          Full supporting triangular base plate gussets are used (in lieu of struts) to minimize crane deflection, thus making it easier to accurately position loads

Ease of Installation

• Independent head assembly, installed separately from the boom for easier installation

• Recessed bearing assembly allows greatly reduced clearances needed for installation

·          Bolted head/boom connection which permits separate installation and provides maximum lift for the hoist, since it can be installed very close to the underside of the lower ceiling obstruction for greater headroom

·          Movable bolted trolley stops

·          In-head totally enclosed, bottom entry collector assembly allows the option of easily adding power to the hoist for 360° rotation at the time of or after purchase

 

Safety

Head retaining pin provides resistance to accidental upward dislodgement of the head

 

Full Rated Capacity

 

Pre-engineered for use with powered hoists. A factor of 15% of the jib crane capacity is allowed for the hoist and trolley weight with an additional 25% of the capacity allowed for impact, thus giving full rated capacity use of the jib.

Application:

 

Free Standing series jib cranes:

·          Are easy to install

·          Perform a multitude of functions within a work area

·          Allow for 360º of continuous rotation even when using electric- or air-powered hoists and trolleys

·          Cantilever-style boom allows for maximum hoist lift

·          Puts no stress on its building’s support structure (all the force of the crane is supported by its foundation).

·           

FS series jibs are an ideal way to handle and transfer materials, and can be used to:

·          Service an open area without being tied to a building structure

·          Supplement a bridge crane

·          Service an area where a bridge crane is not available or feasible

·          Take the place of a wall or column mounted crane when less than 360º of rotation is sufficient, but no other structure is available for support

 Two key requirements must be met before selecting a Free Standing Series jib crane:

·          The jib crane, in all cases, must be supported by a structurally adequate foundation.

 

·          There must be sufficient clearance above the boom (nominally 3 inches) throughout its arc.


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