Bar Grating

Fabrications:
The serrated steel/bar grating is made of serrated bearing bar and cross rods. They placed horizontally and vertically, and at an equal pitch apart, by welding with 200ton hydraulic resistance automatic welding equipment then cutting punching and handing ends.
Center to Center Bearing Bar Spacing: we usually supply with 30mm or 40mm
Center to Center Cross Bar Spacing: usually supply with 50mm or 100mm. and we are also pleased to accept your special order.
Product Description
1) Material: Carbon steel or stainless steel
2) Bearing bar specification: 20 x 3mm to 90 x 7mm
3) Bearing bar pitch: 12. 5mm, 25mm, 30mm, 33. 5mm, 37. 5mm, 40mm, 50mm & 60mm
4) Cross bar pitch: 25, 38, 50, 50. 8, 76, 100 & 101. 6mm
5) Maximum length of black panel: 6, 100mm
6) Material: Carbon steel or stainless steel
7) Surface treatment: Untreated, paint or hot dip galvanized
8) Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88) .  

Series	Pitch of Bearing bar	Cross-bar Pitch	Specification of bearing bar load(width×thickness)
			20×3	25×3	32×3	40×3	20×5	25×5
1	30	100	G203/30/100	G253/30/100	G323/30/100	G403/30/100	G205/30/100	G255/30/100
		50	G203/30/50	G253/30/50	G323/30/50	G403/30/50	G205/30/50	G255/30/50
2	40	100	G203/40/100	G253/40/100	G323/40/100	G403/40/100	G205/40/100	G255/40/100
		50	G203/40/50	G253/40/50	G323/40/50	G403/40/50	G205/40/50	G255/40/50
3	60	50		G253/60/50	G253/60/50	G403/60/50	G205/60/50	G255/60/50
Series	Pitch of Bearing bar	Cross-bar Pitch	Specification of bearing bar load(width×thickness)
			32×5	40×5	45×5	50×5	55×5	60×5
1	30	100	G325/30/100	G405/30/100	G455/30/100	G505/30/100	G555/30/100	G605/30/100
		50	G325/30/50	G405/30/50	G455/30/50	G505/30/50	G555/30/50	G605/30/50
2	40	100	G325/40/100	G405/40/100	G455/40/100	G505/40/100	G555/40/100	G605/40/100
		50	G325/40/50	G405/40/50	G455/40/50	G505/40/50	G555/40/50	G605/40/50
3	60	50	G325/60/50	G405/60/50	G455/60/50	G505/60/50	G555/60/50	G605/60/50