Steel Crane Bar for Swinging Trapeze

Acrobatic "SPREADER BAR" or "CRANE BAR" with 4 Ball Bearings, 2 thrust Bearing and 2 articulated shackle for swinging trapeze, aerial apparatus and acrobatic rigging.

Intended for the practice of circus arts for professionals and circus schools.
They can also be used for flights effects and human lifting as part of shows as well as for stunts and special FX.

This spreader bar brings good compactness and great modularity.

Description

This simple, effective and robust spreader bar is primarily intended for swinging trapeze techniques.

It is designed to be able to accommodate its optional suspension plates which allow the pulleys and lanyards to be deflected outside the trapeze route.

The anchors of the trapeze are made from stainless steel shackles, each being equipped with 2 ball bearings mounted parallel on the shackle axis
and a ball thrust bearing mounted laterally, in order to correctly take up the horizontal forces due to the angles of the swinging trapeze.

The ball thrust bearing helps preserve wear on the side portion of the shackle.

The WICHARD 10 mm stainless steel bow shackle is equipped with an automatic locking system at each quarter turn.

​Details

Intended for the attachment of swinging aerial apparatus (swinging trapezes, flying trapeze, Washington trapeze, aerial rings, etc.),
This simple and robust steel spreader bar is particularly well designed and incorporates several innovations:

* The shackles are made of stainless steel and equipped with a self-locking pin
* Each shackle is fitted with two parallel ball bearings for better holding of lateral torque
* Each shackle is equipped with a ball thrust bearing for a better holding of the lateral force
* The 48mm steel bar is discreet and robust, it accepts the lanyards in the central part
* The safety line pulley attachment rings are optimised to receive the stainless steel shackles of the pulleys directly
* The safety line pulley attachment rings are off-centre to offer :
. - Either a symmetrical position of the double safety lines taking into account the offset induced by the pulleys
. - Either an asymmetrical position of the single safety line which can be adjusted by 100 mm using the bar in the other direction.
* The 17 mm holes are designed to accommodate 50-60 mm diameter pulleys with 6-8 mm self-locking shackles.
* The compact side plates, with 12 holes (9 holes of 17 mm and 3 holes of 12.5 mm), allow for easy management of suspension wires and guy lines angles.
* These plates are designed to accept 3 x M12 screws for mounting on rigid poles, especially for "guyed up" installations.
* The adequate geometry is designed to prevent the lines from rubbing against aggressive metal parts.

​Kit delivered

This kit contains only: The spreader bar and its two stainless steel shackles on bearings.

Option: Plates for pulleys

As an option, the spreader bar can be equipped with two suspension plates which allow better management of the axles of the safety lines and pulleys. Their purpose is to be able to raise the pulleys so that the swing of the trapeze is not in contact with the safety line and that the pulleys do not interfere with the suspension cables.

These steel plates lengthen the assembly by 275mm and weigh around 2.3kg with 4 x N 9mm quick links.

They are articulated by the quick-links in order to orient themselves according to the angle of the suspensions, without forcing.
When storing and transporting, they fill properly along the bar.

Option: RONSTAN CORE 60 pulleys

RONSTAN Core size 60 mm pulleys are available as an option by clicking below in related products.

The WICHARD 6 mm stainless steel bow shackles - self-locking 1/4 turn - for the CORE 60 - are available as an option by clicking below in the associated products.

Option: Guying system from above

Many mountings are possible by bolting the spreader bar to upward facing posts.

This avoids the guy lines down and frees up the acrobatic working space.

If you need a custom configuration, please contact us.

Specifications

* Length between axis of the shackles: 100 cm
* Overall length: 120 cm
* Tube Diameter: 48.3 mm
* Distance between the double safety lines : 500 mm
* Diameter of the holes for the shackles of the pulleys: 17 mm
* Compatible with 6 and 8 mm stainless shackles
* Color: Black - Painting baked by powder coating
* Working Coefficient: 4
* Complies with the guidance of acrobatic art and the Machinery Directive 2006-42-CE
* Axis of work: in the axis of the swing (see instructions)
* Weight: 5,75 kg

Resistance of the bar to the attachment points of the trapeze: For the set (2 points):
* WLL: 1500 daN (kg)
* MBS: 6000 daN (kg)

Resistance of the bar in the center for mono-longe (Per point):
* WLL: 1000 daN (kg)
* MBS: 4000 daN (kg)

​Other options available

* Color: other colors or raw finish, on request
* Other anchor positions or other widths - on request

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