Ladder system
Square tube system
Round system
How to assemble
STRUCTURAL PULTRUSION PROCESS
The pultrusion process is ideally suited for the manufacture of structural shapes. Analogous to the steel rolling process, this process allows structural shapes to be manufactured to length, only restricted by transportation limitations.
Continuous glass fibers that enter the process on the left are actually pulled the length of the process by a tractor (illustrated) or hand-over-hand pullers shown on the right. During the process, the glass bundle of continuous strands is wrapped with continuous strand mats that will provide the transverse strength. The entire reinforcement bundle is then pulled into a liquid resin bath (polyester or vinyl ester) and "wetted" out. The wetted reinforcement package is wrapped in a surfacing veil, which allows a resin-rich finish on the part, offering a first barrier to corrosion and a smooth finish. The completed package then goes into a performer that roughly forms the package into the appropriate shape to enter the heated die for curing. The die is the exact shape of the final part desired. Upon exiting the die, the part is over 90% cured and solid. The length of the part required is pulled through the cutoff saw and the process is complete.
STRUCTURAL SHAPES
NANTONG MACHS' manufactures all standard shapes used for structural projects. They are manufactured in both vinyl ester (standard color is beige) and polyester (standard color is dark gray). Embedment angles are only manufactured in vinyl ester and standard in dark gray to compliment the color of concrete. Reference AGL's Availability List on the following page for a complete list of structurals provided.
ENGINEERING SPECIFICATION
PULTRUDED MACHS® FIBERGLASS STRUCTURAL SHAPES
SECTION 06610
FIBERGLASS REINFORCED PLASTICS (FRP) FABRICATIONS
PULTRUDED FIBERGLASS STRUCTURAL SHAPES
PART 1 GENERAL
1.0 GENERAL
1.1 REFERENCES:
The publications listed below (latest revision applicable) form a part of this specification to the extent referenced herein. The publications are referred to within the text by the designation only.
AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) Test
Methods:
ASTM D-638-Tensile Properties of Plastics
ASTM D-790-Flexural Properties of Unreinforced and Reinforced Plastics
ASTM D-2344-Apparent Interlaminar Shear Strength of Parallel Fiber Composites by Short Beam Method
ASTM D-696-Coefficient of Linear Thermal Expansion for Plastics
ASTM E-84-Surface Burning Characteristics of Building Materials
ANSI STANDARD 61
1.2 CONTRACTOR SUBMITTALS:
A. The CONTRACTOR shall furnish shop drawings of all fabricated structural systems and accessories in accordance with the provisions of this Section.
B. The CONTRACTOR shall furnish manufacturer's shop drawings clearly showing material sizes, types, styles, part or catalog numbers, complete details for the fabrication of and erection of components including, but not limited to, location, lengths, type and sizes of fasteners, clip angles, member sizes, and connection details.
C. The CONTRACTOR shall submit the manufacturer's published literature including structural design data, structural properties data, corrosion resistance tables, certificates of compliance, test reports as applicable, and design calculations for systems not sized or designed in the contract documents, sealed by a Professional Engineer.
D. The CONTRACTOR may be requested to submit sample pieces of each item specified herein for acceptance by the ENGINEER as to quality and color. Sample pieces shall be manufactured by the method to be used in the WORK.
1.3 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.
1.4 PRODUCT DELIVERY AND STORAGE
A. Delivery of Materials: Manufactured materials shall be delivered in original, unbroken pallets, packages, containers, or bundles bearing the label of the manufacturer. Adhesives, resins and their catalysts and hardeners shall be crated or boxed separately and noted as such to facilitate their movement to a dry indoor storage facility.
B. Storage of Products: All materials shall be carefully handled to prevent them from abrasion, cracking, chipping, twisting, and other types of damage. Store adhesives, resins and their catalysts and hardeners in dry indoor storage facilities between 70 and 85 degrees Fahrenheit (21 to 29 degrees Celsius) until they are required.
PART 2 - MATERIALS
2.1 MANUFACTURER:
A. Structural shapes shall be MACHS® as manufactured by
Nantong Machs Composite Material Co., Ltd.
| No.288 Huanhai Road,Nantong ,Jiangsu Province,China Post:226005 |
| Tel:+086-+513-85302213 Mob:Mr.Yang 008613862949363 Fax:+086+513-82033213 |
2.2 GENERAL:
A. All structural shapes are to be manufactured by the pultrusion process with a glass content minimum of 45%, maximum of 55% by weight. The structural shapes shall be composed of fiberglass reinforcement and resin in qualities, quantities, properties, arrangements and dimensions as necessary to meet the design requirements and dimensions as specified in the Contract Documents.
B. Fiberglass reinforcement shall be a combination of continuous roving, continuous strand mat, and surfacing veil in sufficient quantities as needed by the application and/or physical properties required.
C. Resins shall be {MACHS® ISO, non-fire retardant isophthalic polyester or ISO, non-fire retardant isophthalic polyester used to produce NSF Standard 61 certified shapes; ISOFR, fire retardant isophthalic polyester; VE, non-fire retardant vinyl ester used to produce NSF Standard 61 certified shapes or VEFR, fire retardant vinyl ester, (choose one)} with chemical formulation necessary to provide the corrosion resistance, strength and other physical properties as required.
D. All finished surfaces of FRP items and fabrications shall be smooth, resinrich, free of voids and without dry spots, cracks, crazes or unreinforced areas. All glass fibers shall be well covered with resin to protect against their exposure due to wear or weathering.
E. All pultruded structural shapes shall be further protected from ultraviolet (UV) attack with 1) integral UV inhibitors in the resin and 2) a synthetic surfacing veil to produce a resin rich surface.
F. All fire retardant FRP products shall have a tested flame spread rating of 25 or less per ASTM E84 Tunnel Test.
G. All shapes products shall be certified to Standard 61 {use only if choosing a resin system that can be used to produce shapes to the Standard 61 in sections 2.2 C}
2.3 Pultruded structural shapes are to have the minimum longitudinal mechanical properties listed below:
| Property | ASTM Method | Value | Units |
| Tensile Strength | D-638 | 30,000 (206) | psi (MPa) |
| Tensile Modulus | D-638 | 2.5 x 106 (17.2) | psi (GPa) |
| Flexural Strength | D-790 | 30,000 (206) | psi (MPa) |
| Flexural Modulus | D-790 | 1.8 x 106 (12.4) | psi (GPa) |
| Flexural Modulus (Full Section) | N/A | 2.8 x 106 (19.3) | psi (GPa) |
| Short Beam Shear (Transverse) | D-2344 | 4,500 (31) | psi (MPa) |
| Shear Modulus (Transverse) | N/A | 4.5 x 105 (3.1) | psi (GPa) |
| Coefficient of Thermal Expansion | D-696 | 4.4 x 10-6
(8.0 x 10 -6) | in/in/°F
(cm/cm/°C) |
| Flame Spread | E-84 | 25 or less | N/A |
PART 3 EXECUTION
3.0 FABRICATION
A. Measurements: Structural Shapes 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 manufacturer to complete the work. Determine correct size and locations of required holes or coping from field dimensions before structural shape fabrication.
B. Sealing: All shop fabricated cuts or drilling shall be coated with vinyl ester resin to provide maximum corrosion resistance. All field fabricated cuts or drilling shall be coated similarly by the contractor in accordance with the manufacturer's instructions.
C. Hardware: Type 316 stainless steel bolts shall be provided.
3.1 INSPECTION
A. 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 structural shapes shall be as free, as commercially possible, from visual defects such as foreign inclusions, delamination, blisters, resin burns, air bubbles and pits.
About us:
China Nantong Mach's Composite Material Co., Ltd was established in 2005 and located in the Nantong City, Jiangsu Province, which is in the Yangtze River Delta business circle. Mach's owns 30,000 square meters land area, which includes 6,000 square meters plant area and currently has 130 professional employees. Mach's is an integrated manufacturer specializing in producing FRP grating and composite material. Our products include molded grating, pultruded grating, profiles, ladder, stair treads, clips and handrail systems.
During these years exploration and developing, Mach's has conformed to rigorous standards, including ISO9001, SGS, ASTM E84, ABS and some other certifications. As a certified enterprise, we own international quality management systems, and we have a number of advanced production lines and quality control systems. Mach's products have been acknowledged worldwide and we currently and mainly export to USA, Hong Kong, Japan, Southeast Asia, European, South Africa and other countries & regions. We have established long-term and stable relationships with our partners as the higher quality, faster delivery and better service.
We are dedicated to meeting our clients' needs and work towards our clients' highest expectations.
contact us:
address: 28 Longyou Road, Wuyao Town, Rugao City, Jiangsu Province, China, 226000
website: machsfrp.en.made-in-china.com
telephone: 001186-513-85302213
For more details, please refer to our website (machsfrp.en.made-in-china.com). Please also feel no hesitate to contact us if you have any further questions, we are dedicated to meet all our customers' needs and work towards our clients' highest expectations.
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