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| Brand Name: | KXD |
| Model Number: | KXD-SSW1059 |
| MOQ: | 200 Square Meters (MOQ) |
| Price: | US$50.00-100.00 |
| Delivery Time: | 30days |
| Payment Terms: | T/T |
| Model NO. | KXD-SSW1013 |
| Certification | ISO, SGS |
| Customized | Customized |
| Size | According to Customers' Requirement |
| MOQ | 200m² |
| Quality Control | Daily |
| Life Cycle | 50 Years |
| Production Capacity | 5000ton/Month |
Pre-engineered steel buildings are steel structures built over a structural concept of primary members, secondary members, roof and wall sheeting connected to each other and various other building components.
These buildings can be provided with different structural and non-structural additions such as skylights, wall lights, turbo vents, ridge ventilators, louvers, roof monitors, doors & windows, trusses, mezzanine floors, fascias, canopies, crane systems, insulation etc., based on customer requirements. All steel buildings are custom designed to be lighter in weight and high in strength.
Pre-Engineered Buildings are the most flexible solutions for contractors and owners. With advantages of low cost, high durability, perfect quality control and fast erection; PEBs are used for various applications including factories, warehouses, logistics centers, showrooms, shopping malls, schools, hospitals, and community buildings.
Price per square meter can be 25%-30% lower than conventional steel buildings. Site erection cost is low because of faster erection times and easier erection process.
All steel components are fabricated at the factory and linked by bolts at the site. The erection process is fast, step by step, easy to install and requires simple equipment. 60% less construction time required compared with traditional R.C.C (reinforced concrete) building.
Pre-engineered steel buildings are flexible in any requirement of design, easy to expand in the future and also economically with low transportation costs.
Pre-engineered buildings are the green solution for the environment with CO2 reduction, energy efficiency, and recyclability.
Pre-engineered metal buildings consist of the following components:
Primary members are the main load carrying and support members of a pre-engineered building. The main frame members include columns, rafters and other supporting members. The shape and size of these members vary based on application and requirements.
Secondary structural framing refers to purlins, girts, eave struts, wind bracing, flange bracing, base angles, clips and other miscellaneous structural parts. Purlins, girts and eave struts are cold formed steel members with minimum yield strength of 345 MPa (50,000 psi) conforming to GB/ISO/CE standards.
Standard steel panels are 0.3, 0.4, 0.5 mm or 0.6 mm thick with minimum yield strength of 345 MPa. Steel panels are hot dipped and galvanized with zinc or zinc-aluminium coating. Base material is pretreated before applying corrosion resistant primer and top coat.
Other building accessories include anchor bolts, fasteners (bolts, nuts, turnbuckle, expansion bolts), gutters, downspouts, doors, windows, ventilators, skylight panels, louvers and all other building-related materials.
The purpose of method statement is to describe the guidelines and methodology followed during fabrication, blasting, painting and supply of pre-engineered structure for steel building projects.
Preparation of Plates:
Preparation of Beams/Tubes:
Submerged Arc Welding Procedure:
MIG Welding Procedure:
With 20-year warranty in the steel building industry, our company maintains strict quality standards. We have acquired ISO9001 and CE certificates and follow related standards for design and fabrication of steel buildings.
Purpose: To ensure quality of fillet weld, meeting technical requirements of welded members and improve fabrication standardization.
Application Scope: Applies for design, fabrication and inspection of fillet weld size.
| Parameter | Requirement |
|---|---|
| Minimum Fillet Weld Size | K ≥ 1.5×t (t = thickness of thicker welding member) |
| Maximum Fillet Weld Size | K ≤ 1.2t (t = thickness of thinner welding member) |
| Edge Welding | When t ≤ 6mm, K ≤ t; When t > 6mm, K ≤ t-(1~2)mm |
| Circular/Trench Holes | K ≤ (1/3)d (d = diameter of hole) |
| Form of Fillet Weld Leg | K Value | Note |
|---|---|---|
| Fillet weld without groove | K=(0.7~1)t and ≤15mm | For most steel structure buildings |
| Fillet weld without groove | K=(0.5~0.6)t | For strengthening ribs and secondary members |
| Fillet weld with groove (CJP and PJP) | K=t/4 and K≤10mm | For most steel structure buildings |
| Fillet weld with groove (CJP and PJP) | K=t/2 and K≤10mm | Important members (crane beams) |
| Parent Metal Thickness (t) (mm) | Minimum Fillet Weld Size |
|---|---|
| t ≤ 6 | 3 (minimum 5 for crane beam) |
| 6 | 5 |
| 12 | 6 |
| t > 20 | 8 |
Complete manufacturing process: Steel plate cutting → H section assembly → Automatic welding → H section strengthening → Assembly → Manual welding → Shot blasting → Painting → Storage
Quality assurance and material saving oriented cutting using CNC equipment with high purity gases for smooth, flat cutting surfaces without notches and slags.
| Equipment Name | Model No. | Application Feature |
|---|---|---|
| Portable CNC Fire-cutting machine | CNCDG-1530 | Steel plate cutting (5-100mm), beveling of edge |
| Straight flame cutting machine | DZCG-4000A | Steel plate cutting (5-100mm), Y flange plate, web plate cutting |
| CNC cutting machine | CNC-4000C | Steel plate cutting (5-100mm), irregular component cutting |
| Radial drilling machine | Z3050*16/1 | Maximum drilling diameter φ50mm, bolt-connection holes |
Assembly on imported H section production line with hydraulic positioning system and CO2 gas shielded welding for fixation.
Gantry-type submerged arc automatic welding machine for H section steel members with preheating for ultra-thick plates.
Correction of flange flatness and perpendicularity using specialized strengthening machines with controlled flame temperature (600~800ºC).
Complete process including simulated assembly, manual welding, shot blasting to Sa2.5 Grade, and painting with specified coating thickness.
To ensure welding quality, meet technical requirements, and improve fabrication standardization for groove joints in various welding methods.
Key considerations for groove design:
Detailed specifications for butt welding on H section rafter/column, box column, and construction site welding with specific groove orientation requirements.
Standardized marking system for welding method, penetration type, single/double side welding, and backing material type with comprehensive chart references.
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