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Main components:, *Boom assembly, *Platform of boom, *Swivel table, *Slewing ring support, - details see: https://www.machineto.com/hg28m-hydraulic-concrete-placing-boom-10093714

Introduction of the TRUEMAX HG28M

1. The climbing boom moves after the initial phase from built-on climbing device through the floors to the higher floors that still have to be built

Tubular columns with 10m length were coupled with bolts. They can be mounted quickly and easily to any height up to 20 m.

Ladder elements with 2 m length are simply plugged in along the pipe column and make safe access to the working platform possible.

The plugged-together working platform surrounds the head piece of the tubular column substructure. It is the platform when connecting up the boom and serves as access for the installations and gives a good view of the concreting points.

Cross bases for safe anchoring in concrete foundation.

The three floor frames needed are used when climbing through small openings in the floor. They serve to clamp the tubular column and for receiving the vertical loads.

Hydraulic climbing device is required for climbing when it is not available to pull up the boom. Climbing is carried out simply and quickly by two lifting cylinders in follow-up method with the help of the hydraulics of the boom unit. The additional pipes with length compensation can easily insert.

2. The tubular column boom is used in the initial phase for concreting the floors from 0-20M. It will be climbing when used in higher floor.

For large-section buildings, concrete must be placed quickly and economically. If the reach of the truck-mounted concrete pumps and their possibilities are no longer adequate, tubular column booms offer themselves for concrete placement.

The boom always consists of twin tubular columns, a climbing system and a boom. In combination with a trailer or a truck mounted concrete pump, tubular column booms can be assembled for a great variety of efficient solutions that are ideal for the field. They shorten construction time when placing concrete and increase the placing performance.

Model		HG28M
Delivery pipe dimension (outside diameter×thickness) JJ83(mm)		Φ134×4
Delivery hose dimension (insidediameter×length) (mm)		5″×3000
Radius of placing boom(m)		27.7
Stationary height(to the join between the end of the boom and Swivel table) (m)		22.9
Three hydraulic foldable arms(m)	1st section	10.5
	2nd section	9.2
	3rd section	8.0
Boom articulation(°)	1st section	-4.2~+82.5
	2nd section	0~180
	3rd section	0~180
Slewing range(°)		360
Power of motor(KW)		11
Pressure of hydraulic system (MPa)		28
Type of hydraulic oil		ESSONUTO H46
Interval ofclimbingframe	climbing	3.0~4.2
	Placing concrete/resting	6.0~8.4
Mode of operation		Cable remote control
		Radio remote control
power		380V/50Hz
wind speedkm/h	Placing concrete	≤60
	Climbing	≤28
working temperature(°C)		0~48