We specialize in integrated design, fabrication and export services of heavy‑duty steel‑structure factories and production workshops for global manufacturing clients.
Our buildings are compatible with 5‑ton to 100‑ton overhead bridge cranes. The maximum clear single‑span reaches 48 m with no interior columns, and the floor live load can go up to 50 kN/m², perfectly suited for stamping, welding, machining, final assembly and other industrial production applications.
All components are made of high‑strength Q345B / ASTM A572 Gr.50 steel. Precisely pre‑fabricated in‑factory, they are assembled on‑site solely with high‑strength bolts — no field welding required. For a standard 10,000 m² plant, main structural erection takes only 35‑45 days after foundation handover, cutting construction time by more than half versus conventional concrete buildings.
We hold international certifications including ISO 9001, CE (EN 1090 EXC3) and AWS D1.1. Structural calculations and construction drawings are available per AISC, Eurocode 3 or GB standards, with coordinated PE‑stamping service accessible. Our products have been exported to over 50 countries and regions including Mexico, Saudi Arabia, Poland, Nigeria and the Philippines.
A high‑performance heavy‑duty anti‑corrosion coating system complies with international standards to guarantee long‑term structural reliability with a 50‑year service warranty. We deliver full‑cycle support covering design, fabrication, inspection, shipment and on‑site installation guidance.
Professional Design Team with Proven Technical Competence
Our team consists of licensed structural engineers skilled in Tekla Structures 3D modelling and shop‑drawing detailing. Complete structural calculation reports and construction drawings are produced in compliance with international codes including AISC, Eurocode 3 and GB. PE‑stamping service can be arranged to satisfy mandatory approval requirements for overseas projects.
One‑Stop Full‑Cycle Service for Peace of Mind
We deliver end‑to‑end service covering structural design, material procurement, fabrication, quality inspection, packing & shipment and erection guidance. Clients only need to share project requirements, and we provide turn‑key solutions.
Internationally‑Certified & Reliable Quality
We hold ISO 9001, CE (EN 1090 EXC3), AWS D1.1 and other global certifications. Main welds undergo 100% ultrasonic testing under a fully traceable quality‑management system.
Heavy‑Load Capacity for Industrial Operations
Compatible with 5‑ton to 100‑ton overhead cranes. Maximum floor live load reaches 50 kN/m² with a 48‑meter clear column‑free single span, catering to diverse heavy‑duty industrial applications.
Optimized Full‑Life‑Cycle Cost
Foundation cost reduced by 20%‑30%; construction lead‑time cut by over 50%. Heavy‑duty anti‑corrosion system prevents rust re‑occurrence for 15‑20 years. Energy‑saving design lowers long‑term electricity expenses. Cost‑effective purchase plus lower operational expenditure.
Global Project Expertise
Products exported to more than 50 countries and regions. Rich hands‑on experience in overseas project execution. Well‑versed in local design codes and approval procedures, enabling seamless communication with international owners and consulting firms.
For overseas steel‑structure buyers, technical expertise and design competence stand as top priorities when selecting suppliers. These factors directly determine whether a project can pass local authority approval and achieve one‑shot successful on‑site installation.
In‑house design team: Staffed with licensed structural engineers proficient in Tekla Structures 3D modelling and shop‑drawing detailing. We deliver complete structural calculation reports, construction drawings and bill of materials.
Multi‑code design capability: Perform structural analysis and design in compliance with local project requirements, including AISC 360 (US standard), Eurocode 3 (European standard) and GB 50017 (Chinese national standard).
MBMA compliance: Designs strictly follow MBMA (Metal Building Manufacturers Association) guidelines to guarantee systematic performance and reliability for Pre‑Engineered Buildings (PEB).
PE‑stamping service: Upon client request, we coordinate locally‑licensed professional engineers to review and stamp structural calculation documents, meeting mandatory approval requirements for overseas projects.
3D model deliverables: Tekla models are available for client review. Clash detection and erection‑sequence simulation are completed prior to drawing release, eliminating on‑site issues such as misaligned bolt holes.
Design optimization: While fully satisfying safety‑code requirements, we optimize member sections and joint details to keep steel consumption within a reasonable range and help clients cut material costs.
Custom structural solutions: Optimize column‑grid layout and structural system based on your process layout drawings and equipment arrangement plans.
Custom overhead‑crane packages: Match crane beams and corbels according to lifting capacity, span, rail top elevation and crane duty class.
Custom equipment foundations: Pre‑embed anchor bolts and reserve pits as well as utility trenches following equipment manufacturer's drawings.
Custom envelope systems: Material, thickness, insulation layer and color for roof and wall panels are all configurable (full RAL colour range available).
Custom auxiliary facilities: Canopies, walkways, steel ladders, maintenance platforms and mezzanine office areas.
Custom design standards: Calculation reports and construction drawings available in accordance with AISC, GB or Eurocode requirements.
Third‑party inspection support: International inspection bodies including SGS, BV and Intertek are welcome for on‑site factory supervision during production.
| Industry Sector | Typical Workshop Applications |
|---|---|
| Automotive & Auto‑parts Manufacturing | Stamping workshop, welding workshop, machining workshop, final‑assembly workshop, coating workshop |
| Heavy‑Duty Machinery & Equipment Manufacturing | Large‑component welding plant, assembly‑and‑test workshop, surface‑treatment workshop |
| Metal Material Processing | Production plant for steel pipes & profiles, heat‑treatment workshop, surface‑treatment and plating workshop |
| Building Materials / Ceramics / Glass Production | Raw‑material homogenization warehouse, main production plant, kiln workshop, finished‑product cutting & packaging workshop |
| Food & Beverage Processing | Clean production workshop, fermentation workshop, filling & packaging workshop (stainless‑steel interior available) |
| Aerospace & Defense | Aircraft final‑assembly hangar, engine‑maintenance workshop, composite‑material processing workshop |
| Electrical & Electronic Assembly | Constant‑temperature & constant‑humidity assembly workshop, clean‑room plant (purification‑panel envelope optional) |
| Chemical & Advanced‑Materials Industry | Reaction workshop, drying & packaging workshop (anti‑corrosion and explosion‑proof design optional) |
| Parameter Item | Factory / Production Workshop Specifications |
|---|---|
| Main Structure Material | Q345B / ASTM A572 Gr.50 high‑strength low‑alloy steel |
| Column & Roof Beam | Welded H‑section steel / Box‑section (reinforced for crane loads) |
| Overhead Crane Compatibility | 5‑ton – 100‑ton overhead bridge / gantry crane; complete with crane beams, rail fasteners and bumper buffers |
| Clear Single‑Span (No Interior Columns) | 12 m – 48 m (customized to production‑line length) |
| Column Spacing | 6 m – 12 m (matched to equipment module dimensions) |
| Eave Height | 6 m – 35 m (accommodates equipment height and crane lifting height) |
| Roof Slope | 5% – 10% (designed per local rainfall and drainage requirements) |
| Floor Live Load | 10 – 50 kN/m² (designed according to equipment load distribution) |
| Equipment Foundation Solution | Pre‑embeddable anchor bolts, reserved equipment pits and utility trenches |
| Wind‑Load Design | Calculated based on site basic wind pressure; typhoon‑resistant for Grade 12‑17 winds |
| Snow‑Load Design | Determined by site basic snow pressure |
| Seismic Resistance | Rigid‑frame plus bracing system; capable of meeting Seismic Intensity 8 requirements |
| Roofing System | Sandwich panel / single‑skin metal sheet + natural ventilator + daylighting panel + smoke‑vent skylight |
| Wall Enclosure | Insulated sandwich panel / profiled steel sheet (equipped with personnel doors and vehicle rolling shutters) |
| Ventilation Options | Ridge ventilator / turbine ventilator / louver / forced‑draft exhaust fan (optional) |
| Natural Daylighting | PC daylighting panels, covering 3%‑5% of total roof area (adjustable) |
| Fire‑Safety Design | Optional fire‑rated enclosure panels; automatic smoke‑vent windows; evacuation passages compliant with fire‑code requirements |
| Applicable Design Codes | AISC (US) / GB 50017 (Chinese Standard) / Eurocode 3 (EU) / MBMA Guidelines |
| Anti‑Corrosion Surface Treatment | Heavy-duty anti-corrosion coating system (zinc-rich epoxy primer + micaceous iron oxide intermediate coat + polyurethane topcoat) or hot-dip galvanizing |
| Steel Consumption Index | 40 – 80 kg/m² (optimized per span, load and local codes) |
| Quality Certifications | ISO 9001, CE (EN 1090 EXC3), AWS D1.1 welding certification |
| Typical Project Scale | 1,000 – 50,000 m² |
| Production & Delivery Lead Time | 30 days (from drawing confirmation to factory shipment) |
Core Material & Components
Component Name | Material / Specification | Description |
Main Frame (Columns & Roof Beams) | Q345B / ASTM A572 Gr.50 high strength low-alloy steel, welded H section or box section | Primary load-bearing members. Section size calculated based on span and applied loads; reinforced design for crane loaded zones. |
Crane Beam | Q345B welded H-section | For overhead crane operation; complete with rail fasteners and bumper buffers. Section sized according to crane capacity. |
Column Corbel | Fabricated welded Q345B steel plates | Supports crane beams and transfers crane loads to columns. Position set per rail top elevation. |
Roof Purlin | Q235B / Q345B cold-formed C section or Z-section steel | Supporting framework for roof enclosure. Spacing determined by roof panel profile and design loads. |
Wall Purlin | Q235B / Q345B cold formed C section steel | Supporting framework for wall enclosure. Sized for wall panel profile and wind loads. |
Horizontal & Vertical Bracing | Q235B round bar / angle steel / steel tube | Transfers lateral loads (wind & seismic forces) to secure overall structural stability. |
Tie Rod & Sag Rod | Q235B steel tube / round bar | Provides lateral restraint for roof and wall purlins to prevent member buckling. |
High-Strength Bolt Assemblies | Grade 10.9S (GB standard) or ASTM A325 / A490 (US standard) | Fasteners for on-site main-structure assembly with stable torque coefficient for reliable connections. |
Common Bolts | Grade 4.6 / 8.8 | Used for secondary connections and purlin fixing. |
Roof Enclosure Panel | Painted profiled steel sheet / insulated sandwich panel (rock-wool / glass-wool / PU core) | 0.4-0.8 mm thickness, galvanized substrate with polyester coating; RAL colour options available. |
Wall Enclosure Panel | Painted profiled steel sheet / insulated sandwich panel (rock-wool / glass-wool / PU core) | 0.4 0.6 mm thickness, galvanized substrate with polyester coating; RAL colour options available. |
Daylighting Panel | Solid or corrugated polycarbonate (PC) sheet | Light transmittance ≥80% with anti-UV coating, installed in roof daylighting strips. |
Natural Ventilator | Stainless-steel / galvanized-steel turbine or ridge ventilator | Natural ventilation driven by thermal pressure; optional electric opening-closing device. |
Smoke-Vent Skylight | Aluminium frame with PC / glass sash, electric actuation | Dual-purpose for fire smoke exhaust and daily ventilation; remote-control compatible. |
Gutter & Downpipe | Galvanized-steel / stainless steel gutter; PVC downpipe | Roof drainage system. Cross-section dimension calculated for local rainfall intensity. |
Anti-Corrosion Coating System | Zinc-rich epoxy primer (zinc content ≥70%) + micaceous iron oxide intermediate coat + polyurethane topcoat | Total film thickness designed for exposure category; 15-20-year rust-free service life under C3/C4 environments. |
Hot-Dip Galvanizing (Optional) | Complies with ASTM A123 / ISO 1461 | Coating thickness typically ≥85 μm depending on component type; for high corrosion environments. |
Fire-Retardant Coating (Optional) | Intumescent or thick-film fire-proof coating for steel | Provides 1.5h-3h fire-resistance rating per building fire-safety requirements. |
Anchor Bolt | Q235B / Q345B, hot-rolled or forged | Embedded in concrete foundations to connect column base plates; sized by load calculations. |
Column Base Plate & Stiffener Plate | Q345B steel plate | Connection joint between steel column and foundation; transfers column reaction forces into concrete base. |
1. Can your columns support a 50-ton overhead crane in my workshop?
Absolutely. Column sections and corbel positions are calculated strictly according to crane parameters, taking multiple load combinations including wheel pressure, horizontal braking force and impact factors (per AISE standards). Please provide crane datasheet or key parameters: lifting capacity, span and rail top elevation. We can deliver detailed structural calculation reports for review.
2. How do you handle foundations for heavy machinery? Do you provide foundation design?
Yes. Based on load drawings and anchor-bolt layout drawings from equipment manufacturers, we design embedded fittings and reserved space for secondary grouting. Concrete pouring work is carried out by local contractors. We supply complete embedment layout drawings, bolt fixing details and full technical instructions.
3. Welding fumes are heavy inside the workshop. How is ventilation solved?
We adopt a combined natural ventilation plus local forced-exhaust solution. Ridge ventilators installed on roofs discharge hot air and welding fumes via stack effect driven by the temperature difference between indoor and outdoor air. Duct interfaces for local exhaust are pre-arranged above welding stations for connecting dust-removal equipment as required.
4. Can your designs pass local government building approval?
Yes. Drawings can be produced following local codes such as AISC, Eurocode or GB. We support drawing adaptation for local institutes. PE-stamped structural calculation reports can be coordinated when necessary. Many overseas clients have successfully obtained local building approvals using our documentation.
5. How do you control steel consumption? Will you cut steel weight for bidding and compromise safety?
Safety factors are strictly enforced per applicable codes. We never sacrifice safety to reduce steel usage. Our optimization covers well-matched span and column spacing, precise load-combination calculation to avoid unnecessary overdesign, and high-strength steel (Q345B / A572 Gr.50) for compact member sections. You receive safe and cost-effective solutions.
6. What is the lead-time from contract signing to goods arrival at port?
Normally 30 days, subject to project complexity and crane configuration. A precise production schedule will be issued upon drawing confirmation, with traceable progress for each production stage.
7. Do you send field erection crews?
We supply detailed erection manuals and 3D installation demonstration videos. One to two experienced technical supervisors can be dispatched to supervise critical on-site steps, e.g. first rigid-frame lifting and crane-beam positioning. Turn-key erection services are available for large-scale projects upon separate quotation.
8. Are custom colours available for building appearance?
Yes. Full RAL colour range is available for roof and wall metal panels. Main steel frames are normally painted grey or white; custom topcoat colours matching corporate branding are acceptable.
9.What is the design service life of your steel-structure workshop?
Under normal designed load operation and regular maintenance, the design service life reaches 50 years, complying with internationally accepted requirements for industrial buildings.
H Steel Beam is a durable, economical hot-rolled structural steel. With great rigidity and load capacity, it features stable performance and high material utilization. We offer diverse specifications, reliable quality and custom processing, suitable for various construction projects.
Qingdao Pristine Steel Structures and Engineering Co., Ltd.
Copyright © 2024 Qingdao Pristine Steel Structures and Engineering Co.Ltd All Rights Reserved. 
Powered by Hicheng
