T-Bar 1.5′′deep Fiberglass Pultruded Pedestring Grating

About Us:
China Nantong Mach's Composite Material Co., Ltd was established in 2008 and located in the Nantong City, Jiangsu Province, which is in the Yangtze River Delta business circle.
A professional and integrated manufacturer with 10 years experience specializing in FRP grating and composite materials30,000 square meters land area and over 100 professional staffsApproved by ISO9001, SGS, ABS, ASTM E84 & other certificationsProviding high quality products with advanced manufacturing equipments and rigorous QC systemsThe fastest delivery and best after-sales serviceAcknowledged worldwide and we currently and mainly export to USA, Hong Kong, Japan, Southeast Asia, European, South Africa and other countries & region


Pultruded Grating

Manufacture:
Grating components shall be high strength and high stiffness pultruded elements having a maximum of 80% and a minimum of 75% glass content (by weight) of continuous roving and continuous strand mat fiberglass reinforcements. Bearing bars shall be interlocked with a two piece cross rod system, adhesive bonded, to provide a mechanical and chemical lock. Cross rods should be below the walking surface of the grating. Gratings with cross rods that are flush with the walking surface are excluded. Nonslip surface: Grating shall be provided with a quartz grit, adhesively bonded and baked to the top surface of the finished grating product. Coast guard rating: All gratings and treads shall have u. S. Coast guard approval and be certified to a level 2 in accordance with the u. S. Coast guard draft memorandum: Policy file memorandum on the use of fiber reinforced plastic (FRP) deck grating (dated 2 February 1998)Fire rating: Coated and uncoated grating shall have a tested flame spread index of 25 or less in accordance with the ASTM e84 tunnel test. Gratings shall not burn past the 25 mm reference mark and will be classified hb per ASTM d635. Manufacturer may be required to provide certification of ASTM e84 test on grating panels from an independent testing laboratory. Test data shall be from full scale testing of actual production grating, of the same type and material supplied on the project. Gratings shall be classified as 94V-o by the UL 94 test for flammability and pass the ASTM d2863 test for 100% oxygen concentration. The phenolic grating shall also be tested in accordance with ASTM e662 with a non-flaming max ds (corrected) of 1.8 or less and ds@4 min of. 22; Flaming max ds (corrected) of 2.7 or less and ds@4 min of. 5. 
 
Resin System:
The resin system used in the manufacture and assembly of the grating shall be 100 % phenolic. Manufacturer may be required to submit corrosion data from tests performed on actual grating products in standard chemical environments.   Color: Natural brown  

Depth: 1-1/2" deep load bars with a tolerance of plus or minus 1/32". 
 
Mesh Configuration:
1-1/2" load bar spacing; 6" tie bar spacing on centers. Grating shall be machs I6015p as manufactured by nantong machs composite material Co., Ltd. 
 
Load/Deflection:
Grating shall meet manufacturer's published safe recommended loadings with deflection not to exceed the following: 
Uniform distributed load over a 60" span: 50 pounds per square foot, with a maximum deflection of 0.14". Note: Maximum span approved by coast guard is 44". 

Installed
Gratings that will be installed outdoors in direct UV shall receive a secondarily applied UV coating based on a 2 part aliphatic polyurethane system. 
 
Substitutions:
Other products of equal strength, stiffness, corrosion resistance and overall quality may be submitted with the proper supporting data to the engineer for approval.
 
Stair Treads
Stair treads shall be machs® pultruded I6015p-t phenolic stairtreads. Construction, component part dimensions and mesh configuration shall be in accordance with section 2.3 - pultruded grating. 
Nosing shall be osha compliant and formed by placing two load bars together, locking into place with standard notched and epoxied tie bars. Nosing shall be coated a different color than grating so as to be readily discernable to persons when descending a stair as required by osha. Nonslip surface: Tread shall be provided with quartz grit, adhesively bonded and baked to the top surface of the finished tread. Load/deflection: Treads shall meet manufacturer's published safe recommended loadings with deflection not to exceed the following: 
Concentrated line load placed at the center of the stair tread over a 40" clear span: 500 pounds, with a maximum deflection of 0.16". Note: Maximum span approved by the coast guard is 44". 


2.5 Grating & Tread Fabrication
 
Measurements:
Grating and treads supplied shall meet the minimum dimensional requirements as shown or specified. The contractor shall provide and/or verify measurements in field for work fabricated to fit field conditions as required by grating manufacturer to complete the work. Determine correct size and locations of required holes or cutouts from field dimensions before grating fabrication. 
 
Layout:
Each grating section shall be readily removable, except where indicated on drawings. Manufacturer to provide openings and holes where located on the contract drawings. Grating supports shall be provided at openings in the grating by contractor where necessary to meet load/deflection requirements specified herein. Grating openings which fit around protrusions (pipes, cables, machinery, etc. ) shall be discontinuous at approximately the centerline of opening so each section of grating is readily removable. 
 
Sealing:
All shop fabricated grating cuts shall be sealed to provide maximum fire and corrosion resistance. All field fabricated grating cuts shall be coated similarly by the contractor in accordance with the manufacturer's instructions. 
 
Hardware:
Type 316 stainless steel holddown clips shall be provided and spaced at a maximum of four feet apart with a minimum of four per piece of grating, or as recommended by the manufacturer. 


3.1 Inspection
Shop inspection is authorized as required by the owner and shall be at owner's expense. The fabricator shall give ample notice to contractor prior to the beginning of any fabrication work so that inspection may be provided. The grating shall be as free, as commercially possible, from visual defects such as foreign inclusions, delamination, blisters, resin burns, air bubbles and pits. 


3.2 Installation
Contractor shall install gratings in accordance with manufacturer's assembly drawings. Secure grating panels in place with holddown fasteners as specified herein. Field cut and drill fiberglass reinforced plastic products with carbide or diamond tipped bits and blades. Seal cut or drilled surfaces in accordance with manufacturer's instructions. Follow manufacturer's instructions when cutting or drilling fiberglass products or using resin products; Provide adequate ventilation. 


Surface Treatment:
1. concave
2. gritted
3. mirror
4. pattern
5. sanding
6. smooth


Molded FRP Grating Properties:
Superior corrosion resistant and impacteasy to installless maintainance costNon-Magnetic, non-conductiveanti-slip, anti-fireHigh Strength, Light Weightlong-lastingColor Selected Optiona Non-Electric & Thermal Conductivity
Molded FRP raw materials:


Raw Materials:
   
Certifications:
General Data: 
Properties For Control Report: 
Test Conditions: 
Room Temperature: 23° C
Humidity: 60 %

Test Conclusions: Confirmed to all above specification
I hereby certify that the results above were obtained on the material referenced according to Taishan Fiberglass Inc. Test procedures and frequency. 
Certified by Quality Control Laboratory
More suppliers certicfications can be provide as your requests


Resin Systems:
 

QC SYSTEM:

Report List:
ISO 9001 ABS Quality EvaluationsABS Design AssessmentABS Manufacturing AssessmentASTM -E 84 Moulded Grating 1 class 15ASTM -E 84 Moulded Grating 1 class 10ASTM -E 84 Moulded Grating 1 class 25UL -94 V -0ROSHEN 13501+A1 Fire classification

Quality Assurance: 
A.       All items to be provided under this Section shall be furnished only by manufacturers having a minimum of ten (10) years experience in the design and manufacture of similar products and systems. Additionally, if requested, a record of at least five (5) previous, separate, similar successful installations in the last five (5) years shall be provided.
 
B.       Manufacturer shall offer a 3 year limited warranty on all FRP products against defects in materials and workmanship.
 
C.       Manufacturer shall be certified to the ISO 9001-2000 standard. 
 
D.       Manufacturer shall provide proof of certification from at least two other quality assurance programs for its facilities or products (UL, DNV, ABS, USCG, AARR).
 
E.        Manufacturer shall provide proof, via independent testing less than six months old, that materials proposed as a solution do not contain heavy metals in amounts greater than that allowed by current EPA requirements.


Specific gravity table of FRP and other materials (g/cm3)
 
Table of FRP profiles physical properties
 

Packing and Delivery:

Packing Material: 
1. Wood or steel pallets --easy to upload and download the cargo 
2.PE wrapping film --keep grating clean and assure pallets stable 
3. Bundling belts--assure pallets more stable          
4. full cartons protection

Delivery Inspection:
1. sales specifists checking quantity and quality of goods
2. IQC staffs spot re-inspect
3. checking packing and waybills 


The mechanical property table of the Molded grating
The declaration of the mechanical property of the molded grating(same with the pultruded grating)
The listed data is all tested by the bilateral support..
The tested gratings are produced by Nantong Machs and all listed standard data is the minimum value of Machs' enterprise standard. 
  

Applications & How to cut and install?


Modulus and cutting loss calculation of Molded grating
Molded grating has its standard panel size and the mesh size is also fixed, therefore, when doing cuttings, it's impossible to keep the integrity of the mesh if there is no exact calculation, or there will be much wastage after cuttings. 

In order to reduce the cutting wastage and to keep the beautiful appearance, sometimes we have to calculate the grating modulus for the integral lattices. 

() = X N() + 7mm()
Grating sizes(integral lattices)= inner mesh sizesXN(modulus)+7mm(rib width)

N = (-7)/
Modulus N= (Grating sizes-7mm)/inner mesh sizes (integral value)
38.1X38.1mm, 1227X3667mm: 700mm, . 
Take grating mesh size 38.1X38.1mm, panel size 1227X3667mm as an example. 
Pave a trench which width is 700mm with the grating, and the grating should be integral lattices, without cutting fingers. 

N=(700-7)/38.1=18
It's calculated that N=(700-7)/38.1=18

1227X3667mm692mm, 1227mm
3667/38.1/(18+1) = 5
So the grating (panel size 1227X3667mm) could be cut into 5 PCS(3667/38.1/(18+1)) for the trench(1227LX692mmW)

(5X1227X692)/(1227X3667) X100% = 94.35%
The utilization ratio of the grating is (5X1227X692)/(1227X3667) X100% = 94.35%


Our Service:

Pre-sale Service: 
1. Custom design 
2. Product Consulting
3. Provide samples within 7 days

After-sale Service:
1. tracking cargos and customers' feedbacks
2. Installation consults
3. 24 hours/7 days
4. Quality Compliants solving 


FAQ(Frequently Asked Questions):
Q: Are you a trading company or a manufacturer?    
A: We are a manufacture as you can see our workshops' photos herein.

Q: What is your payment term?    
A: T/T, L/C, paypal, etc can be accepted.

Q: Can I place sample order first?      
A: Yes, we can provide sample first for your check.

Q:What kind of trade terms can you do?      
A: FOB, CIF, CFR, etc can be accpetd. 

Q: What features should I consider when choosing FRP gratings?      
A: You should consider your specific application in regards to environment, span, open area, impact resistance and layout utilization.

Q: Why is molded grating more corrosion resistant than pultruded grating of the same resin type?      
A: Resin protects the glass fibers from corrosive chemicals. Molded grating has 65% - 70% resin whereas pultruded grating has only 30 - 35% resin. Secondly, molded grating is one-piece        homogeneous construction whereas pultruded grating is assembled into panels. The corrosion   barrier of the pultruded pieces are compromised when holes are drilled into components for panel assembly.   

Q: What is the leading time for the samples?      
A: Normally 7 to 10 working days.

Q: What is the leading time for bulk order?      
A: Normally 30 to 40 working days.

Q: Do you have the MOQ for the products?      
A: No, we do not have any MOQ, 1pcs, 1 square meters is available for us. 

Q: Do you have detailed and professional installation manuals?      
A: Yes, we have. And we shall provide along with the shipping.