Movable Support System 1. Low investment 2. High benefit 3. Simple operation 4. Less land occupation

(1)technical parameters

item	MZ900S	MZ460S
one time girder-casting weight(t)	900	460
girder length(m)	32.6/24.6	29.94/24.96
self weight(t)	450	310
longitudinal moving speed(m/min)	0.5	0.5
power(kw)	50	46.5
max anti-force at working(Kn)	5805	3333
out dimension(m)	62.5 x 20.6 x 5.6	58.5 x 13.8 x 5
average construction speed(day/span)	12	12
applicable curve radius(m)	R>2000	R>2000
applicable longitudinal gradient	2%	2%
applicable transverse gradient	2%	2%

(2)movable support system and bridge girder launcher

Movable support system is a kind of construction machinery to install bridge girders by way of cast-in-place with its own formwork, supported by box girder.

Bridge girder launcher realizes bridge construction if the girder carrier transports the prefabricated concrete girder to the rear part of the launcher.

Difference between movable support system and bridge girder launcher

Without prefabricating concrete girder in the precast girder yard, the movable support system adopts cast-in-place and field maintenance. Averagely it finishes one piece of girder every 12 days. While for the bridge girder launcher, it needs to prefabricate concrete girder, then transport them to be installed on the bridge floorThe movable support system has a longer cycle to finish the project but with low investment and high benefit; the bridge girder launcher with a short completion time but high investmentWith low investment and short preparation time, the movable support system can be fast put into use. While the bridge girder launcher needs a long time to prepare for other equipments such as girder carrier and gantry crane.With less land occupation, the material cost of the movable support system is relatively low.The movable support system is widely used in the mountain area that can not build large-sized precast girder yard, while the bridge girder launcher is popular in large-sized precast girder yard

Upstroke movable support system bridge making machine