Why do you need a "specialist contractor" for crane skeleton and roof covering?
- The complexity of the crane's metal frame: This structure is not just a simple beam. This skeleton must withstand huge dynamic loads (moving and shock loads) caused by crane movement, braking and lifting. Calculations related to metal fatigue, resistance of connections against vibration and accurate design of crane girders require structural engineering knowledge and practical experience. A small mistake in design or welding can end in a disaster.
- The importance of roof covering: The roof is your shed's first line of defense against the elements. Improper sealing, improper installation of flushes and gutters, or the selection of inappropriate materials will lead to water infiltration, severe energy loss (cooling and heating), damage to products and machinery, and a reduction in the useful life of the entire structure.
Comprehensive analysis of crane metal frame services by Soleh Hamrang city
First phase: detailed design and engineering
- Determining the type of crane: Does your project require an overhead crane or a gantry crane? What is the tonnage capacity of the crane?
- Dynamic load calculations: Using advanced software such as SAP2000 and ETABS, all live, dead and dynamic loads on the metal frame of the crane are modeled and analyzed. Four-sided or type A) is done considering a high reliability factor.
- Connection design: Connections in the crane structure are very sensitive due to the dynamic nature of the loads. We use High-Strength Bolts or Full Penetration Welds in accordance with regulations.
Second phase: precision manufacturing in Nasirabad factory
- CNC cutting: Sheets and profiles are cut with millimeter precision CNC cutting machines to avoid any assembly errors.
- Standard welding: Welding is done by certified welders using Submersible Submersible Welding (SAW) and CO2 processes. Non-destructive testing (NDT) such as UT and PT are performed to ensure the health of the welds.
- Surface preparation and painting: The surface of the parts is completely sandblasted and then coated with several layers of corrosion-resistant industrial paint to maximize the life of the structure.
The third phase: specialized and millimeter installation
Installing the metal frame of the crane is the most sensitive step. Using accurate mapping equipment (total station) and specialized tools, our installation team ensures the following:
- The verticality of the columns: The lifting columns must be installed completely vertically.
- The alignment of the rails: The slightest misalignment in the rails causes severe wear of the crane wheels and creates dangerous side loads. We control the alignment of the rails with millimeter precision.
- Final screwing: All screws are tightened using a torque wrench with the torque specified in the drawing.
A complete guide to choosing and implementing shed roof covering
Shahr Soleh Hamrang as a specialist roofing contractor in Nasirabad Tehran, helps you to choose and implement the best and most optimal material for the roof of your shed.
Technical comparison of popular roofing types
- Sandwich Panel:
- Structure: two layers of metal sheet (galvanized, aluzinc) with a compressed insulating core in between (polyurethane, polystyrene, rock wool).
- Advantages: excellent heat and sound insulation, light weight, high installation speed, beautiful and hygienic appearance.
- Application: The best option for cold stores, food factories, sports halls, and any A shed where temperature control is important. Shahr Sule Hamrang performs this type of roof covering with the highest quality.
- Galvanized sheet with insulation (glass wool/rock wool):
- Structure: A layer of sinusoidal or trapezoidal galvanized sheet under which chicken netting and glass wool or rock wool insulation are installed.
- Advantages: Lower initial price, high resistance to rust.
- Application: An economical option for warehouses, general workshop sheds and sheds where maximum insulation is the first priority. It is not.
Key details in the implementation of the roof covering that make the difference
Our expertise lies in the details. A professional roofing contractor pays attention to points that are often overlooked:
- Perfect Sealing: We use special gasketed screws and silicone or polyurethane adhesives to completely seal the overlap of the sheets and the place of the screws.
- Precise Flashing & Gutter: Design and install flashing correctly in the corners, crown of the roof and edges to direct rainwater and prevent its penetration. It is vital. The roof system of the shed must be designed and implemented with a suitable slope and sufficient capacity to drain water quickly.
- Attention to installation details: Compliance with the standard overlapping of sheets (overlap), the use of a sufficient number of screws per square meter and the correct installation of spikes or caps in the crown of the shed, all affect the final quality of the work.
Why is Nasirabad, Tehran, the center of our expertise?
Our location is not accidental. The establishment of the factory and head office in Soleh Hamrang city in Nasirabad, Tehran, brings strategic advantages for both us and our customers in this area and neighboring areas (such as Rabat Karim, Parand, Shahriar):
- Reduced transportation costs: Proximity to your project means a significant reduction in the cost of transporting heavy Crane Metal Frame parts.
- Speed of action and support: We can arrive at your project site in the shortest possible time, make periodic visits and provide fast support.
- Complete familiarity with the area: We are familiar with the climatic conditions, laws We are completely familiar with the construction and infrastructure of Nasirabad Industrial Town.
This local focus allows us to provide our services as a specialist contractor of crane metal framework and roof covering in Nasirabad, Tehran with the highest quality and the most optimal price.
Summary and invitation to cooperation
As described in this article, the metal frame of the crane and roof covering are the pillars of your shed's safety and efficiency, and entrusting their implementation to non-specialists is a big and expensive risk. Shahr Suleh Hamrang has introduced itself as a expert and reliable contractor in this field by combining engineering knowledge, many years of practical experience and focusing on providing services in Nasirabad, Tehran. We are with you from design to final installation to ensure that your investment pays off in the best way possible.
If you are looking to build a safe, standard and durable structure, if quality and expertise are a priority for you, and if you want to work with a professional and committed team, contact our experts at "Shahr Sule Hamrang" today. Initial consultation and site visit of your project will be completely free.




