Reliable Steel Structure Workshop High Strength Safe Operation DIY Installation Suitable for Small Scale Production

Specification:

Production process:

1. Raw Material Preparation

Source qualified steel materials (e.g., universal beams, purlins, columns) complying with international standards (e.g., AS/NZS 3679.1 for Australia projects).

• Conduct incoming inspection: verify material certificates, check dimensions, and perform mechanical property tests (tensile, bending) if required.
• Store materials in a dry, ventilated area to prevent corrosion; classify and label by specification for easy retrieval.

2. Cutting & Fabrication

• Use CNC cutting machines (plasma, flame, or laser cutting) for precise blanking of steel plates, profiles, and components.
• Ensure cutting accuracy: dimensional tolerance within ±1mm for key components (columns, rafters).
• Perform edge preparation (beveling) for welded joints to meet welding process requirements.

3. Drilling & Punching

• Drill bolt holes using CNC drilling machines for purlins, connecting plates, and bolted moment connections.
• Hole diameter tolerance controlled at H12 level; ensure hole positions align with design drawings (no offset >0.5mm).
• Deburr holes and cut edges to remove burrs and sharp corners, avoiding damage to galvanized layers later.

4. Assembly & Welding

• Assemble components (portal frames, columns, rafters) on assembly jigs to guarantee structural alignment.
• Adopt bolted moment connections as designed; pre-install bolts (without final tightening) for on-site assembly convenience.
• Weld critical joints using semi-automatic submerged arc welding or MIG welding; follow welding procedure specifications (WPS).
• Control welding deformation: use clamping fixtures, sequential welding, and post-welding straightening if necessary.

5. Quality Inspection (Welding & Structure)

• Conduct non-destructive testing (NDT) for key welds: ultrasonic testing (UT) or radiography testing (RT) to detect internal defects.
• Inspect overall structure dimensions: span, eave height, roof pitch, and bay spacing meet design requirements.
• Verify bolt hole alignment and surface flatness of components to ensure on-site installation feasibility.

6. Surface Treatment

• Perform shot blasting: remove rust, oil, and scale from steel surfaces to achieve Sa2.5 grade cleanliness.
• Apply hot dip galvanization (per AS 1397 or ASTM A153) for corrosion protection; ensure zinc layer thickness ≥85μm.
• For painted finishes (if required): apply anti-rust primer and topcoat after galvanization, with total film thickness ≥120μm.

7. Cladding & Insulation Preparation

• Cut and fabricate roof/wall cladding (color steel sheets) according to structural dimensions; pre-drill mounting holes.
• Cut insulation blankets (e.g., glass wool, rock wool) to match cladding size; package separately with moisture-proof film.
• Label cladding panels and insulation rolls by installation position (roof, wall, carport) for on-site identification.

8. Final Assembly & Container Packing

• Pre-assemble small sub-assemblies (e.g., door frames, carport supports) to reduce on-site work.
• Clean all components to remove dust, oil, and debris before packing.
• Pack components in 20ft/40ft containers: use steel brackets, foam padding, and straps to fix components, preventing collision during shipping.
• Include packing list, installation drawings, material certificates, and galvanization test reports in each container.

Packing&Delivery:

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.

1. Cost-Effectiveness: Ocean freight offers significantly lower per-unit costs compared to air or land transport, especially for bulk steel products (e.g., H-beams, I-beams, steel structures) with large weight and volume. This reduces overall logistics expenses, enhancing Tsin Steel’s price competitiveness in global markets.
2. Large Cargo Capacity: Ships, including bulk carriers and container vessels, can handle massive quantities of steel—ideal for Tsin Steel’s large-scale shipments. This capability supports fulfilling bulk orders for construction projects, industrial clients, or overseas distributors efficiently.
3. Global Reach: With access to major ports worldwide, ocean freight enables Tsin Steel to reach diverse international markets, from regional hubs to remote coastal destinations, expanding its global customer base.
4. Suitability for Heavy/Durable Goods: Steel products are robust and less prone to damage during transit. Ocean freight’s stable, low-vibration environment minimizes risks of deformation or wear, ensuring product integrity upon delivery.

Company profile:

Qingdao Tsin Steel Structure Construction Technology Co., Ltd. are engaged to provide integrated solution of steel structure workshop, warehouse and multi-storey steel building, including preliminary layout consulting, structural design, fabrication, delivery solution and installation guidance. Our production capacity is 2500 ton per month. The overall space of our factory is around 30,000m2. Through years of continual improvement, we have formed a complete set of building system solution. Our design engineers are skilled with advanced CAD and Tekla software, will provide you with most dependable and economical building structure. By Tekla structures detailing, material planning software and efficient processing equipment, we are able to produce accurate drawings quickly, purchase material efficiently and process your project precisely. we are committed to establish long term business relationships with all domestic and oversea customers. Our experienced project managers develop oversea markets and take charge in the entire progress of one project, including pre-sales technical communication, commercial terms confirmation, as well as implementation and tracking after contract signed. Coordinate and deal with the possible problem during the stage of material procurement, production, packaging, delivery. Timely feedback and deal with the technical consultation during construction to ensure the project implement smoothly. We have exported to many oversea countries but not limited: Australia, Indonesia, Philippines, Ghana, Mauritius, Benin, Rwanda, Cameroon, Tanzania, Seychelles, Chile,Venezuela, Guyana, Etc. Give us your idea, we make your dream come true.

FAQ:

1. who are we?
We are based in Shandong, China, start from 2025,sell to South America(40.00%),Africa(20.00%),Oceania(10.00%),Central America(10.00%),Eastern Europe(10.00%),Southeast Asia(10.00%). There are total about 5-10 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Steel Structure Warehouse, Steel Structure Workshop, Steel Building, Poultry House, Prefab House
4. why should you buy from us not from other suppliers?
We are engaged to provide integrated solution of steel structure workshop, warehouse and multi-storey steel building. We have more than 20 years experience in construction field.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW；
Accepted Payment Currency:USD,EUR,AUD,CNY;
Accepted Payment Type: T/T,L/C,Cash;
Language Spoken:English,Chinese