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This type truss is a small conical coupler one made in our factory, adopting middle type conical connector, connect a conical spigot in the middle, use incl.R spring to fix. This product is light, easy to transport, favorable price,  install agilitily.The height is 1m, 2m, 3m.Be the same with hanging painting background, ad truss, small lighting truss, the most span is 12m. Also can be used for large or middle type light truss pillar.  Usually adopting T6061 type aluminum material, main tube is φ50*3mm,brace tube is φ25*2mm. But also can choose T6082 type aluminum materail for the special request of the clients, can make main tube φ50*4mm or φ50*2mm according to the loading.

SQU H30    /6061 T6 main tube:Φ50*3mm Brace tube:Φ25*2mm
Span	All loading	One point	Middle point	Two point	Three point	Four point	Sinkage
(M)	(KG)	(KG)	(KG)	(KG)	(KG)	(KG)	(MM)
4.0	740.0	186.0	371.0	277.0	185.0	155.0	7.0
5.0	750.0	150.0	370.0	277.0	185.0	155.0	15.0
6.0	738.0	123.0	370.0	277.0	185.0	155.0	26.0
7.0	756.0	108.0	360.0	270.0	185.0	155.0	42.0
8.0	720.0	90.0	320.0	270.0	181.0	150.0	62.0
9.0	648.0	72.0	290.0	241.0	160.0	134.0	79.0
10.0	600.0	60.0	263.0	225.0	145.0	120.0	98.0
11.0	550.0	50.0	263.8	200.0	133.0	110.0	119.0
12.0	504.0	42.0	241.0	181.0	210.0	100.0	141.0