Heavy Gauge Industrial Steel Structure Framed Construction for Factory Production Workshop

Introduction on KXD's prefab structure building system

Pprefab structures for industrial and commercial functions are a 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 the customer's requirements. All the steel buildings are custom designed to be lighter in weight and high in strength. Thus steel building designs have become more flexible, durable and adaptable over the last four decades which has made steel one of the preferred materials for building construction.

PMB/PEB's are ideal for non-residential and wide-span low-rise buildings. Some of the key advantages of PMB/PEB include economical in cost, factory controlled quality, durability, longevity, flexibility in expansion, environmentally friendly, faster installation, etc.

Pre-engineered metal buildings are used for diverse applications such as factories, warehouses, showrooms, supermarkets, aircraft hangars, metro stations, offices, shopping malls, schools, hospitals, community buildings and many more.

As a leading PMB/PEB manufacturer, KXD provides the complete service of engineering, fabrication and erection thus ensuring better quality control at every stage of the process.
Pre-engineered metal buildings consists of following components:

1. Primary Members / Main Frames
2. Secondary Members / Cold Formed Members
3. Roof & Wall Panels
4. Accessories, Buyouts, Crane System, Mezzanine System, Insulation, etc.
5. Sandwich Panels

PRIMARY MEMBERS / MAIN FRAMES

CRANE BEAMS

TRUSSES

SECONDARY MEMBERS / COLD FORMED MEMBERS

ROOF & WALL PANELS

KXD ROOF (KR) & KXD WALL (KW) (AVAILABLE IN ALL REGIONS)

KXD RIB / ROOF (KR)

KxD DECK

INSULATED SANDWICH PANELS

INSULATION

The main purpose of insulating a building is to reduce the heat transfer coming through the ceilings and openings.

Polyurethane Insulation

This is a panel manufactured by the press injection method to produce a polyurethane core between exterior steel facings. It can be used on the roof and wall as claddings.
Fiber Glass Insulation

This can be used on the roof or wall and can be retrofitted on existing buildings. The fiber glass insulation is fire safe and CFC free and does not emit toxic smoke. It is laminated to the top and bottom steel facings with special chemical glue hence completely filling the insulation cavity.
SANDWICH PANELS
KXD Roof Insulated Panel (KRIP)

KXD Roof Insulated Panels (KRIP) is one of the premier roofing systems which uses the KXD Roof (KR) profile for a durable, low maintenance and weather-tight roofing system. The large panel size reduces the number of joints, and the high corrugation overlap joint reduced water leakage.
Kirby Wall Insulated Panel (KWIP)
 
KXD Wall Insulated Panels (KWIP) uses the KXD Wall (KW) cladding profile for a speedy and cost-efficient solution for external walls where higher insulation performance is required. This profile is most suitable to overshadow the fasteners. It can be applied as external walls for commercial and industrial applications.

For any new potential metal building buyer,KXD's turnkey solution pack would make your project just like a local market purchase experience with so much ease because you just need to fill out follwoing form and KXD will do the following work for you!

KXD's H Section Manufacturing Equipment and Process
Steel plate cutting→H section assembly→Automatic welding-H section strengthening→Assembly→Manual welding→Shot blasting-Painting→
Storage

I.Steel plate cutting
The H section  steel plate should be checked again by the factory and shall be applied under the condition of up to design and specified requirements after checking. Steel plate cutting should be aimed at quality guarantee and material saving. For each process like plate cutting,H type assembly, components assembly and pre-assembly should be carried out by profession setting-out worker precisely on processing surface and assembly sample plates.To guarantee the accuracy of the components'geometrical dimension,tolerance of form and position, angle and contact surface,inspection is necessary by inspector after setting out.In order to ensure the cutting quality,the surface of the ultra-thick plate is subjected to the surface carburizing hardness test before cutting.The CNC cutting equipment is preferred for cutting.The high purity 98.0% acrylic gas and 99.99% liquid oxygen gas are used to guarantee the smoothness and flatness of the cutting surface without notches and slags.The groove is cut by a special imported cutting machine.

Equipment name: Portable CNC Fire-cutting machine
Model No.: CNCDG-1530
Application feature: steel plate cutting(5-100mm plate cutting thickness), beveling of the edge.Advantageous in small equipment and easy-to-move. Mainly for cutting regular and irregular small components and beveling of the plate.

Equipment name:Straight flame cutting machine
Model No.:DZCG-4000A
Application feature:steel plate cutting(5-100mm plate cutting thickness),Y flange plate, web plate cutting, effective cutting width: 3200mm

Equipment name:CNC cutting machine
Model No.:CNC-4000C
Application feature:steel plate cutting(5-100mm plate cutting thickness),Y flange plate,web plate and irregular component cutting,effective cutting width: 3200mm

Equipment name: Radial drilling machine
Model No.:Z3050*16/1 
Application feature:Maximum drilling diameter φ50mm,Mainly for processing of component bolt-connection holes

Equipment name:Puncher machine
Model No.:JH21-400
Application feature:Maximum stamping pressure-400 ton,Mainly for plate punching, blanking, bending and shallow stretching

Equipment name:Shearing machine 
Model No.:Q11Y-25*2500 
Application feature:cutting width 2500mm and cutting thickness 3-25mm

II.H section steel assembly
The assembly process is set up on the imported H section production line.4 hydraulic positioning system press firmly against between the upper/lower flange and web plates in position. The adjust the parallelism of the flange plates and perpendicularity between flange and web plates and get them fixed after. The fixing welding should adopt C02 gas shielded welding.

Equipment name:H section steel assembly machine
Model No.:Z20B
Application feature:mainly for H type assembly u,flange width 150-800mm,web height 160-2000 mm

III.Automatic welding
The H section steel members will be hoisted into the gantry-type submerged arc automatic welding machine for welding.The welding process should be carried out in accordance with specified welding sequence and regulation parameters.Preheating, which uses the electrical heaters, is necessary for the ultra-thick plates of components.The set temperature shall be determined based on the specified one.Please see factory welding process documents for detail.

Equipment name: Gantry-type submerged arc automatic welding machine  
Model No.:LHA5ZB
Application feature:Mainly for assembly welding of H section steel whose maximum cross section up to 800mm×2000mm

IV.H section steel strengthening machine
H section steel strengthening process: Correction of flange flatness by using H section steel flange plate strengthening machine.Flame-correct the perpendicularity between the H section flange and web plate under special circumstances and then correct the side bending of the H section steel. The flame temperature should be controlled under the range of 600~800ºC.

Equipment name:H section steel strengthening machine  
Model No.:YTJ60B
Application feature:Mainly for correcting the deformation of I beam or H section steel flange plate during welding process,flange width 200-1000mm, flange thickness≤60mm, web height≥350mm

Equipment name:H section flange strengthening machine
Model No.: HYJ-800
Application feature:Mainly for correcting the deformation of I beam or H section steel flange plate during welding process,flange width 160-800mm,flange thickness≤40mm,web height≥160mm

V.Simulated assembly of component
1.Get familiar with component shop drawing and technical requirements.
2.The model components need to re-check by related department after making and finalizing of the model components and then to assemble.
3.Accurate mark-up
4.Inspect the component after first assembly.For multi-group components, pre-assembly for the first group and then batch assembly after qualified test.

VI.Manual welding

VII.Shot blasting
Equipment name:10-ramming heads shot blasting machine
Model No.:QH1525    
Application feature:Mainly for shot blasting of section steels including H section steel, welded members and steel plate,10 ramming head; Machine entry size:1500Í2500 and member at 1200Í2000 size could pass the machine at once; up to Sa2.5 Grade.

VIII.Painting
The surface of the members should be in even,flat, glossy and full painting without manifest of cracking, peeling and pin holing.The color and coating thickness should also meet design requirements.If there is no certain requirements,the following standards should be followed:thickness is 150μm indoor while 125μm outdoor.The allowable deviation is -25μm.The allowable deviation of dry paint film thickness for each-time painting
Two coats of primer:thickness being40±5μm; Two coats of finish paint:thickness being 60±5μm.

Equipment name:Airless sprayer     
Model No.:CPQ9CA
Application feature: Derived capacity:56 L/min,Air consumption:50~1200 L/min.Mainly for surface paint of structural members, Pressure ration: 32:1