Kingde Bar Grating Corp.

STANDARD WELDED STEEL BAR GRATING

In 19W4 & 19W2, 1 3/16" CENTER TO CENTER OF BEARING BARS

Welded Steel Bar Grating is the most popular of all grating types due to its strength, cost-efficient production and ease of installation. Universally used in most general industrial plants as well as commercial buildings, it has wide applications as walkways, platforms, safety barriers, drainage covers and ventilation grates.

It is also ideal for use as mezzanine decking since it supports the same loads as comparable solid flooring. More than that, its cost saving openness maximizes the circulation of air, light, heat, water and sound, while promoting cleanliness. And, where insurance codes permit, additional sprinklers can often be eliminated.
Standard panels are available in widths of 2', 3' or 4'.

For more information of bar grating, send email to us.
Contact Info:

Kingde Bar Grating Corp.
Add: 11 Qinghuayuan Road, Dezhou, China
http://www.bargrating.org
Email: sales@bargrating.org

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Welded steel bar grating is resistance welded to create a rugged, one-piece constructed panel. The bearing bars are automatically resistance welded at the contact point with the cross bars and, under a combination of high heat and pressure, are fused together to form a permanent joint. The cross bars provide a high degree of rigidity, yet retain a smooth flat surface for free and easy walking.

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Standard grating panels are 3 ft. wide x either 20 ft. or 24 ft. long. Panels are painted black; one end is untrimmed.

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DETAIL GRATE FOR SIDEWALK TGD type

FOR SIDEWALK LOADING

A	Type	Grating			Frame			Load Bar Pitdn
A	Type	Width	B	C	D	E	Angle	Load Bar Pitdn
200	TGD-A200-25	1002	300	25	315	30	L30X30X3	20
250	TGD-A250-25	1002	350	25	365	30	L30X30X3	20
300	TGD-A300-25	1002	400	25	415	30	L30X30X3	20
350	TGD-A350-25	1002	450	25	465	30	L30X30X3	20
400	TGD-A400-25	1002	500	25	515	30	L30X30X3	20
450	TGD-A400-25	1002	550	25	565	30	L30X30X3	20

200	TGD-B200-25	992	300	25	315	30	L30X30X3	15
250	TGD-B250-25	992	350	25	365	30	L30X30X3	15
300	TGD-B300-25	992	400	25	415	30	L30X30X3	15
350	TGD-B350-25	992	450	25	465	30	L30X30X3	15
400	TGD-B400-25	992	500	25	515	30	L30X30X3	15
450	TGD-B450-25	992	550	25	565	30	L30X30X3	15

TG Type Grating:
TRENCH COVERS & SUMP COVERS is used in municipal engineering, walkway, park, water & sewage treatment system etc. The entire range has been designed with a view to maximizing the grate open area thus achieving the most hydraulically efficent grates available, it can be manufacture the widest range of sizes for various load requirements.

Class	A	Type	Grating			Frame
Class	A	Type	Width	B	C	D	E	Angle
	200	TG200-20	995	300	20	320	25	L50X25X5
	250	TG250-20	995	350	20	370	25	L50X25X5
	300	TG300-25	995	400	25	420	30	L50X30X5
	350	TG350-25	995	450	25	470	30	L50X30X5
	400	TG400-25	995	500	25	520	30	L50X30X5
	450	TG450-25	995	550	25	570	30	L50X30X5
	500	TG500-25	995	600	25	620	30	L50X30X5
	550	TG550-25	995	650	25	670	30	L50X30X5
	200	LHTG200-25	995	300	25	320	30	L50X30X5
	250	LHTG250-25	995	350	25	370	30	L50X30X5
	300	LHTG300-32	995	400	32	420	37	L50X37X5
	350	LHTG350-32	995	450	32	470	37	L50X30X5
	400	LHTG400-40	995	500	40	520	45	L50X45X5
	450	LHTG450-40	995	550	40	570	45	L50X45X5
	500	LHTG500-45	995	600	45	620	50	L50X50X5
	550	LHTG550-45	995	650	45	670	50	L50X50X5
	200	HTG200-32	995	300	32	320	37	L50X37X5
	250	HTG250-40	995	350	40	370	45	L50X45X5
	300	HTG300-45	995	400	45	420	50	L50X50X5
	350	HTG350-45	995	450	45	470	50	L50X50X5
	400	HTG400-50	995	510	50	530	55	L55X55X5
	450	HTG450-50	995	560	50	580	55	L55X55X5
	500	HTG500-60	995	630	60	650	65	L65X65X5
	550	HTG550-60	995	680	60	700	65	L65X65X5
	200	HHTG200-40	995	300	40	320	45	L50X45X5
	250	HHTG250-45	995	350	45	370	50	L50X50X5
	300	HHTG300-50	995	410	50	430	55	L55X55X5
	350	HHTG350-50	995	460	50	480	55	L55X55X5
	400	HHTG400-60	995	530	60	550	65	L65X65X5
	450	HHTG450-65	995	590	65	610	70	L70X70X5
	500	HHTG500-65	995	640	65	660	70	L70X70X5
	550	HHTG550-75	995	710	75	730	80	L80X80X5

★ The design loads of the moving vehicles such as heavy truck, tram-car, and pedestrian sidewalk are listed as below for reference.

Class		Total Load	Load of Rear Wheel	Impact Load of Rear Whee	Contract Length of Rear Wheel	Width of Rear Wheel	Cars Concerned
	1st Class Bridge	20T	8,000(kg)	11,200(kg)	20(cm)	50(cm)	Cement tanker Dump Truck
	2nd Class Bridge	14T	5,600(kg)	7,840(kg)	20(cm)	50(cm)	Bus
	Degree of Light Truck	6T	2,400(kg)	3,360(kg)	20(cm)	24(cm)	Fork Lift Truck
	Degree of Car	2T	800(kg)	1,120(kg)	20(cm)	16(cm)	Car
	Sidewalk	Distributed Load 500kg/m2

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TU Type Bar Grating:

FOR SIDEWALK LOADING

A	Type	Grating			Frame		Load Bar Pitdn
A	Type	Width	B	C	D	Angle	30
150	TU150-20	995	130	20	210	L40X40X4	30
200	TU200-25	995	180	25	280	L50X50X5	30
250	TU250-25	995	230	25	330	L50X50X5	30
300	TU300-25	995	280	25	380	L50X50X5	30
350	TU350-32	995	330	32	430	L50X50X5	30
400	TU400-32	995	380	32	480	L50X50X5	30

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FLOORING PANELS FOR CABLE TRENCH)
　　3mm thick chequer plates are normally attached to grating panel by welds to form a solid top panel for cover application to resist heavy impacts.

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ALUMINUM STAIR TREADS

Aluminum Stair Treads can be manufactured with
plain top or serrated for a firm grip.

The National Safety Council indicates that many falls
are caused by slipping off the edge of steps.
Therefore, on many of our products, we supply a
non-slip Nosing.

Stair Treads with non-slip Nosing meets OSHA
regulation 1910.24(f).

Make your next step a safe one!


Top view, with non-slip Nosing


    Top view, without
non-slip Nosing

Side view showing carrier plate

Maximum Tread Length

Carrier Plate Height

Bearing bar size	Plain Top	Serrated Top
1" x 3/16"	2' 0"	--
1-1/4" x 3"16"	2' 8"	2' 4"
1-1/2" x 3/16"	3' 6"	3' 1"
1-3/4" x 3/16"	4' 7"	4' 0"

Height	Note
2-1/2"	For bearing bars up to and including 1-1/4"
3"	For bearing bars 1-1/2" or higher

NOTE: All carrier plates are 3/16" thick

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Bar Grating

Click on the photos to see more information
Displaying 9 of 9 Products

Steel 19W4 & 19W2
1 3/16 in. Center to Center
of Bearing Bars
Steel 15W4 & 15W2
15/16 in. Center to Center
of Bearing Bars

Steel 11W2
11/16 in. Center to Center
of Bearing Bars
Aluminum 19AP4
1 3/16 in. Center to Center

of Bearing Bars

Stainless Steel 19S4
1 3/16 in. Center to Center
of Bearing Bars
Bar Grating Treads
(OSHA and BOCA Type)

Aluminum Stair Treads
Safety Step Bars

Traditional Deck Plate

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ALUMINUM BAR GRATING

Corrosion resistant, non-sparking, rustproof aluminum grating has many applications due to its light weight and high strength. It is ideally suited for use in corrosive environments and finds wide applications as walkways and platforms in sewage treatment plants, refineries, chemical processing plants, pumping and compressor stations, and aboard ships and barges.
Because it does not rust, it is commonly used in breweries, bottling plants, and food preparation and storage facilities. In munition plants, other volatile industries and areas, its non- sparking properties make it a must for safety. It is available in standard or
anodized finishes.


Press-Locked Rectangular Bar Grating is constructed with the two close-tolerance slotted bars
bonded together (positioned every 2" or 4") using tremendous hydraulic pressure. Permanent locking is achieved by forcing the deep cross bar into the bearing bar. Both the cross bars and the bearing bars provide walking surfaces in the press-locked design.


Rectangular bar grating in either the swage-locked or press-locked styles is your best choice when lateral stiffness is required. The rectangular bar is also available in a serrated surface for additional safety.

Aluminum Grating

ALUMINUM GRATING LOAD TABLE

(LOAD BARS AT 30mm PITCH)
Type	Cross Rod Pitch mm	Mass kg/m2	Load Bar Size mm		Span in mm
Type	Cross Rod Pitch mm	Mass kg/m2	Load Bar Size mm		450	600	750	900	1050	1200	1500	1800	2100	2400	2700	3000
705/30/100	100	36.69	70×5	U	533.50	299.20	191.40	133.10	97.80	62.59	32.66	16.59	10.24	6.45	4.24	3.05
705/30/50	50	38.09	70×5	D	0.86	1.53	2.39	3.44	4.68	5.13	6.52	7.00	8.00	8.57	9.10	10.00
655/30/100	100	34.17	65×5	U	485.00	272.00	174.00	121.00	88.90	68.00	28.12	15.38	9.30	5.84	3.73
655/30/50	50	35.57	65×5	D	0.97	1.73	2.71	3.90	5.31	6.94	7.00	8.00	9.00	9.70	10.00
605/30/100	100	31.65	60×5	U	380.00	210.00	130.00	90.00	60.00	53.00	22.11	12.09	7.31	4.59	2.93
605/30/50	50	33.05	60×5	D	0.96	1.70	2.58	3.69	4.56	6.88	7.00	8.00	9.00	9.70	10.00
555/30/100	100	29.13	55×5	U	331.00	186.00	119.00	82.60	60.60	40.37	16.92	9.28	5.66	3.62
555/30/50	50	30.53	55×5	D	1.09	1.95	3.05	4.39	5.98	6.82	7.00	8.00	9.09	10.00
505/30/100	100	26.61	50×5	U	281.00	158.00	101.00	70.10	43.80	30.40	12.73	6.95	4.20	2.73
505/30/50	50	28.01	50×5	D	1.24	2.21	3.45	4.97	5.77	6.84	7.00	8.00	9.00	10.00
455/30/100	100	24.09	45×5	U	237.00	133.00	85.20	59.10	37.85	22.71	10.61	5.71	3.38
455/30/50	50	25.49	45×5	D	1.43	2.55	3.99	5.75	6.83	7.00	8.00	9.00	10.00
405/30/100	100	21.57	40×5	U	198.00	111.00	71.20	42.17	24.53	16.60	7.07	4.15	2.39
405/30/50	50	22.97	40×5	D	1.71	3.04	4.75	5.84	6.31	7.00	8.00	9.30	10.00
305/30/100	100	16.53	30×5	U	91.46	51.74	33.04	19.86	11.53	7.77	3.84	1.86
305/30/50	50	17.93	30×5	D	1.88	3.35	5.24	6.55	7.00	8.00	9.80	10.00
255/30/100	100	14.01	25×5	U	58.70	31.02	18.42	10.53	6.62	4.91	2.25
255/30/50	50	15.41	25×5	D	2.08	3.47	5.05	6.00	7.00	8.90	10.00

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GRATEING FOR DITCH

Grid Grating
Bar Grating

Flat Panel Grating
Gear Shape Bar Grating
Slot Bar Grating

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Application:
Grating structures find wide applications in industrial flooring and sidewalks.The grating

made of steel profiles has the advantages of economic,durability and pleasing to the eye.

Use it to creat platforms,walkforms,walkways or stair treads in

manufacturing,warehouse,plant and agricultural settings:anywhere you need durable and cost

-efficient flooring .

Highly versatile,grating structure is provided in more than fifty standard types and is

readily cut or customised to any specific requirement.

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Steel Bar Grating Sizes:

Maximum Sizes: 1m x 6m standard
Other sizes can be custom made according to American Sizes and other requirements.
Materials: Low carbon steel
Surface Treatment: Hot dipped zinc coating, painted or plain steel
Surface Shape: Flat or gear

Quality Standard:
Bar grating can be supplied in the following standards:

China: YB/T4001-1998
American: ANSI/NAAMM（MBG531-88）
UK:BS4592-1987
Australia: AS1657-1992
Steel Bar Standard: China GB700-88
Hot dipped zinc coating standard: China Standard: GB/T13912-92

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Non-slip Perforated Checker Plates

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Series 1: 30mm Bar Grating:

The center to center distance of the steel bar is 30mm. This is the mostly used steel bar grating in various industries. With bearing load is decided by the flat steel bar, this type of bar grating has minimum distances between the load-bearing bars.

Technical Info:
Bearing bar distances: 30mm
Vertical bar distances: 100 mm or 50 mm
Vertical bar distances: 50 mm

Bar Grating Series 2

The center to center distance of the load-bearing bar is 40 mm. It has light weight compared with the first series, less material. This series of bar grating is used in sites where requires less span distance of the flooring, for example, stair tread, gratings and shelves.

Technical Info:
Vertical bar distance: 100mm
Load-bearing steel bar distance: 40mm
Vertical bar distance: 50 mm

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Bar Grating Tread

Bar grating is used as treads for steel ladders. It is easy for installation and can be upplied in module sizes. The hot dipped zinc coating adds corrosion resistance and saves maintenance and cost.

Bar grating ladders are used in the steel structure design and manufacture in waste water treatment and water plants.

Angle/ Width

73° 600
59° 700
51° 700
51° 900
45° 700
45° 900
73° 600
59° 700
51° 700
51° 900
45° 700
45° 900
45° 1100
73° 600
59° 700
51° 700
51° 900
45° 700
45° 900
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Compound Steel Bar Gratings
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Composite steel grid grating is composed by steel grid grating of certain load-bearing and checkered plates.

This kind of bar gratings may deform going through the hot dipped zinc coating process. So heavy type steel bar with big gauge is normally chosen in making composite steel grid gratings.

The checkered plates are normally in the thickness of 3mm, 4mm, 5mm or 6mm.

composite lattice steel plate by hot-dip zinc processing, it will be due to thermal stress generated warpage, in particular the use of larger models steel grid plate,
School-more difficult, please note that selection.

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Expanded Metal

We supply a wide range of expanded metal products to cater for all your needs. For further information on our new expanded metal product range please mail us

Expanded Metal Types:
General Mesh
Medium Mesh
Heavy Mesh

All of these series are manufactured in nominal sheet sizes of 2400 x 1200. Cut to size is available on request. Please note that the maximum width of LWM is approximately 1225m.

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Expanded Metal Flooring

Expanded metal has the features of diamond mesh serrated pattern, giving excellent nonslip characteristics, as well as being a lightweight and strong section. Ideal for conveyor walkways, inclines, or for severe conditions where slip resistant floors are required.

This covered modular walkway services applications such as tool room floors, office staff bridges, fire protection landings or walkways and a range of other architectural uses.

It offers a lightweight, strong section which is ideal for use on conveyor walkways,

inclines or anywhere slip resistant floors are required. Manufactured in standard 6m x

250mm wide sections which can be cut to suit the standard lengths held in stock for various

walkway widths.

Manufactured in mild steel and aluminium.

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Light duty bar grating:

For walkways.
Loading UDL 300kg/m²
Maintenance Platforms, Catwalks, Conveyor Walkways, Restricted to one-person traffic.
Medium duty walkways Loading UDL 500kg/m²
General Production Platforms, Restricted to regular two-way pedestrian traffic.

Heavy duty
For walkways Loading UDL 750kg/m²
General Production Platforms, High Density Pedestrian Traffic.
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Gratings Overview

Mild steel /galvanised, industrial walkway, architectural, special steel and Offshore.

A wide range of apertures and standard panels are available which are compatible with local and international types. We specialise in cut to size or tailored to drawing panels and stairtreads. Non-slip serrated gratings and stairtreads are supplied for slippery areas, or where safety is a consideration. A range of light to heavy duty gratings from screening to airport type applications are available.

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Gratings Introduction

We supply a quality product range to the petro-chemical, power generation, mining, processing, food, beverage and other industries, both locally and overseas. Our unique innovative design has found wide acceptance from all industries.

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Applications

We have divided our product into three loading categories for our clients’ ease of use.

More specifically these are as follows: Light duty walkways Loading UDL 300 kg/m.

(maintenance platforms, catwalks, conveyor walkways, restricted to one-person traffic).

Maximum recommended span as shown on table.
Medium duty walkways Loading UDL 500 kg/m (General production platforms, restricted to

regular two-way pedestrian traffic). Maximum recommended span as shown on table.
Heavy duty walkways Loading UDL 750 kg/m2 ( General production platforms, restricted to

regular two-way pedestrian traffic). Maximum recommended span as shown on table.

These categories are based on local and international requirements for our industry.

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Design
Our patented innovative and refreshing new design concepts, improves safety, reduces panel

damage and offers our clients real cost saving as a result. The most important feature of

this product is that the solid 8mm transverse bar is securely fixed to the bearing bar by

pressure forging, preventing lifting through weld embrittlement from continued load

application or damage in normal handling or operating conditions.

The transversal member remains immovable, thus ensuring constant apertures and stiffness is

maintained throughout the panel. This results in a neat and safe product. Where our

standard fixing clip and bolt are attached to the transversal member, no dangerous

protrusions are prevalent. Our range is designed in accordance with DIN, BS and NAAMM

standards. Approval certification is available on request.

Drawing Office
A fully equipped CAD drawing office is able to undertake shop detailing and layout drawing

for fabrication and erection purposes. Electronic Data Transfer (EDT) is preferred in an

FTP medium for files larger than 1MB using a DXF format.

Safety
Plain or serrated bars are manufactured. The serrated surfaces improve grip and safety in

numerous worker environments which assists in reducing valuable workforce downtime through

possible injuries.

Applications

We have divided our product into three loading categories for our clients’ ease of use.

More specifically these are as follows:

Light duty walkways Loading UDL 300 kg/m. (maintenance platforms, catwalks, conveyor

walkways, restricted to one-person traffic). Maximum recommended span as shown on table.
Medium duty walkways Loading UDL 500 kg/m (General production platforms, restricted to

regular two-way pedestrian traffic). Maximum recommended span as shown on table.
Heavy duty walkways Loading UDL 750 kg/m2 ( General production platforms, restricted to

regular two-way pedestrian traffic). Maximum recommended span as shown on table.

These categories are based on local and international requirements for our industry.

Grating Terminology:
Load Bearing Bar: A load-bearing member spanning between supports
End Plate: A plate fixed to a stair or ladder tread for attaching to the stringer

Transverse Bar:
A member fixed at right angles to the load bearing bars to provide lateral restraint.

Curb Angle:
A member fixed to concrete or supporting steelwork at the perimeter of a flooring aree

Pitch:
The distance centre-to-centre of load-bearing bars or centres between points of lateral

support to load-bearing bars.

Kicking Plate:
A flat bar around the edge of a flooring panel and projecting above the top of the load-

bearing bars

Length: (Direction of Span)
The overall dimension of a flooring panel parralel with the load-bearing bars

Net Area:
The actual area of flooring excluding cut-out areas

Gross Area:
The total area of flooring including the cut out area

Width:
The overall dimension of a flooring panel measured at right angles to the load-bearing

bars.

Cut-Out
An area of flooring removed to permit pipes, columns, etc to pass through or to clear

obstructions.

Curved Shaping:

The part of a cut-out which is curved

Straight Shaping:

The part of a cut-out which is straight.

Binding Bar:
A bar or section fixed to the edges of flooring panel flush with the top of the load-

bearing bar.

Front Edging Bar:

A member attached to the front of a stair tread or to a flooring panel.

Deep Bending Bar:
A bar or section fixed to the edges of a flooring panel and projecting below the underside.

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Fiberglass FRP Floor Grating:
Super floor grating is an integral construction one-piece fiberglass roving reinforced unsaturated polyester resin (FRP) grating.

This grating is typically composed of 60-65% by weight resin and immensely strong continuous glass fiber by a specially designed process that provides a property of good corrosion resistance, angular silica particles are em- bedded in the top surface of grating to provide longlasting slip resistant surface.

Continuous glass fiber roving winding in alternating layers in two directions is thoroughly wetted with polyester resin. When load applied to a grating bar is transferred to adjoining cross bars and bearing bars, assisting in load distribution on the grating providing the grating a very high strength.

The grating is non-conductive and non- magnetic, beautiful appearance, ease of installation and maintenance free.

Due to these unique properties Super grating has been widely used by petrochemical, metallurgic, electric power and electronic, water-supply & drainage, food & beverage, municipal construction and environment, civilian construction industries etc.. Our users are distributed over domestic and foreign countries.