Audited Supplier
Press-locked steel bar grating made by fixed size flat steel through slotted, pressure lock plug, finish, etc process. At the intersection point of flat steel and horizontal pole, press horizontal pole into loading flat steel, then fixed it. Sometimes the horizontal pole also used flat steel.
The grating is widely used for floor, catwalk, Mezzanines/decking, stair tread, fencing; vault bin floor floor, ramp, dock/warehouse, all kinds of trench cover, window and machinery safe guards, wash rack, ventilation screen, storage rack, suspended ceiling, drainage pit cover and etc.
Technical Data Table
| Material | 1.Carbon Steel Q235 2.Stainless Steel 304 / 316 |
| Type | Press lokced / Flat bar / Serrated bar / I Bar |
| Bearing Bar Size | 20 x 3 to 100 x 9;the specification of "I-section" is 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x 4, etc |
| Bearing Bar Pitch | 12.5 to 100 mm etc, 30, 40, 60mm are recommended, America standard is available |
| Cross Bar Pitch | from18.5 to 101.6mm etc, 50, 100mm are recommended, America standard is available |
| Specification | Size of bearing flat steel: 25x3mm / the center space: 30mm, 40mm, 50mm, 100mm Size of horizontal pole: 10x2mm / the center space : 50mm, 100mm |
| Surface Treatment | Untreated / Painting / Hot Dip Galvanizing |
| Steel Standard | China GB700-88 / America ASTM (A36) / Britain ASTM (A36) |
| HDG Standard | China GB/T13912-92 / America ASTM (A123) / Britain BS729 |
| Quality Standard | China YB/T4001-1998 America ANSI/NAAMM (MBG531-88) Britain BS4592-1987 Australia AS1657-1992 |
Welding Mould List
| Zhongzheng Welding Mould List | ||||
| No. | Bearing Bar Pitch (mm) | Standard Panel Width (Bearing Bar Thickness 5mm) | Bearing Bar Number (PC) | Remark |
| 1 | 12.5 | 1005 | 81 | Pitch between the two sides are smaller than normal bearing bar pitch. |
| 2 | 15 | 1010 | 68 | |
| 3 | 20 | 1010 | 51 | |
| 4 | 22 | 995 | 46 | |
| 5 | 23.85 | 1007 | 43 | |
| 6 | 25 | 1005 | 41 | |
| 7 | 30 | 995 | 34 | |
| 8 | 30.16 | 1000 | 34 | |
| 9 | 30.3 | 1005 | 34 | |
| 10 | 32.5 | 1013 | 32 | |
| 11 | 34.3 | 1000 | 30 | |
| 12 | 35 | 1020 | 30 | |
| 13 | 35.3 | 1029 | 30 | |
| 14 | 40 | 1005 | 26 | |
| 15 | 41 | 1030 | 26 | |
| 16 | 41.4 | 999 | 25 | |
| 17 | 50 | 1005 | 21 | |
| 18 | 60 | 965 | 17 | |
| 19 | 62 | 997 | 17 | |
Packaging Method and Process
How to produce steel grating? Please reference our production line as below.
How to place an order with us? Kindly please reference our order procedure as below, any of your questions or requirements can get our prompt response.
Company Profile
Ningbo Zhongzheng steel grating Co. Ltd. is a professional enterprise in R & D., design, steel grating, SMC grating field. With innovative and pragmatic, scientific developing philosophy, following the criterion of ISO9001, it provides steel grating, stair tread, compound steel grating, fiberglass grating, drainage pit/trench cover, railing & stanchion, etc. It products are widely used in petroleum, chemical industry, environmental protection, power plants, pharmaceutical, printing and dyeing, brewing water supply and drainage, transportation and other industries.
With its ten years of professional management experience and production in press welding steel grating, it is one of the few enterprises who have the technology of flat steel and galvanized steel grating in the industry. The plentiful resources, skilled team, and high level of management, make it be the fastest developed, most potential grating products supplier.
Ningbo Zhongzheng steel grating Co., Ltd strictly followed the brand management of "quality making value, innovation leading the future", to provide clients high quality assurance, drawing, mechanics calculation, data collation service. With high-quality products and services combined, it has been well recognized by clients all over the world. The products have been exported to different countries and regions, such as South Korea, Singapore, Thailand, Australia, France, Kenya, etc.
WEBSITE: cngrating.en.made-in-china.com
Contac Person: Sally Wu
