Wholesale Upright Frame Systems & Compatible Racking Solutions
Engineered for distributors, 3PL mega-hubs, and cold storage warehouses. Each upright profile is cold-formed on multi-station automated roll-forming lines with custom pitch configurations (50mm, 75mm, and 76.2mm teardrop).
Steel Structure Warehouse Building Prefab Warehouse Steel Structure
Turnkey prefabricated industrial steel structure buildings engineered with integrated high-bay rack clad upright columns, H-beam framing, and optimized wind/seismic load resistance.
Light Duty Wire Shelving Standard High Quality Storage Rack System Use Steel Racks for Warehouse
High-capacity open wire ventilated shelving utilizing tubular vertical uprights with grooved locking collars for sterile storage, dry food goods, and electronics picking lines.
Wall Shelf With Drainage Groove
Sanitary stainless steel wall shelf modules featuring integrated drainage troughs and robust anchor upright arms engineered for cold storage rooms, commercial kitchens, and labs.
Factory Custom Heavy Duty Steel Four-Way Shuttle Racking System High-Density Warehouse Rack With Large Load Capacity
Reinforced Omega-upright framing accommodating precision longitudinal and transverse sub-rails for automated 4-way robotic radio shuttles in high-throughput distribution hubs.
Heavy Duty Racking System - Selective Pallet Racking System
Universal industrial selective pallet racking utilizing bolted upright frames (50mm / 75mm pitch) for 100% direct access to every pallet position. Euro & ISO pallet compatible.
Warehouse Storage Racks Shelving Systems Pallet Rack Gravity Roller Flow Racking Movotec MTG100 1 Year Warranty
Gravity roller flow racking built on heavy upright columns with integrated speed controller brakes, engineered for strict First-In First-Out (FIFO) perishables and pharmaceutical storage.
Durable Compact Powder Coated Steel Light-Duty Warehouse Rack with Adjustable Shelf Height for Small Parts Storage
Modular longspan uprights with butterfly keyholes and slotted angle cross-ties. Designed for dense manual bin picking, hardware fulfillment stations, and maintenance workshops.
Jracking US Inventory Warehouse Stacking Shelves Racks Heavy Duty Teardrop Pallet Racking System for Logistics Hub
American-standard teardrop punch upright frames fully compatible with major US brands. Manufactured from high-tensile 55,000 PSI steel with 2-inch pitch adjustability and seismic baseplates.
Engineered Resistance: Buckling Calculations, Omega Profiles & Steel Yield Strength
Pallet rack upright frames are the primary vertical load-bearing pillars of any warehouse distribution center. Unlike generic structural columns, upright profiles are cold-formed thin-walled open sections subjected to combined axial compression, torsional-flexural buckling, and cyclic impact stresses from material handling equipment.
At our Guangzhou manufacturing base, upright columns are engineered using cold-formed structural steel grades Q235B and Q355B (conforming to EN 10025-2 S235JR and S355JR equivalents, as well as ASTM A1011 Grade 50). Using high-yield Q355B steel increases the critical Euler buckling limit by over 28% without adding deadweight to the floor slab, allowing distribution facilities to achieve rack heights exceeding 18 meters.
Each upright profile features our proprietary multi-ribbed Omega cross-section design. The roll-formed stiffening return lips shift the shear center closer to the centroid, drastically minimizing torsional warping under asymmetrical single-pallet loading patterns.
Mechanical Properties Profile Factory Mill Standard
- Steel SubstrateHot-Rolled Carbon Strip (Baosteel / Shougang)
- Yield Strength ($f_y$)Q235B: ≥ 235 MPa | Q355B: ≥ 355 MPa
- Tensile Strength ($f_u$)370 - 630 MPa (Elongation ≥ 21%)
- Upright Column Widths80mm, 90mm, 100mm, 120mm, 140mm
- Material Thickness1.5mm, 1.8mm, 2.0mm, 2.3mm, 2.5mm, 3.0mm
- Frame Depths600mm, 800mm, 1000mm, 1100mm, 1200mm
- Hole Pitch Standards50mm Euro, 75mm International, 76.2mm (2") Teardrop
- Surface CoatingElectrostatic Thermoset Polyester (60-90 μm)
- Design StandardsEN 15512:2020, ANSI/RMI MH16.1, AS 4084:2023
Standard Heavy-Duty Upright Frame Load Capacity Table
Calculated based on standard first beam level clearance of 1,500 mm. Capacities account for structural safety factors ($\gamma_M = 1.4$) in accordance with European standard EN 15512 and RMI specifications.
| Upright Profile (mm) | Thickness (mm) | Material Grade | Section Modulus ($W_x$ cm³) | Moment of Inertia ($I_x$ cm⁴) | Max Frame Capacity (kg) | Recommended Beam Span | Compliance Spec |
|---|---|---|---|---|---|---|---|
| HEDA 80 (80 × 60) | 1.8 mm | Q235B / S235JR | 6.12 | 24.8 | 8,500 kg | Up to 2,300 mm | EN 15512 / ISO 9001 |
| HEDA 90 (90 × 68) | 2.0 mm | Q235B / S235JR | 8.95 | 40.3 | 12,500 kg | 2,700 mm (Euro Pallet) | EN 15512 / CE |
| HEDA 100 (100 × 68) | 2.0 mm | Q355B / S355JR | 11.40 | 57.2 | 16,800 kg | 2,700 - 3,300 mm | EN 15512 / RMI MH16.1 |
| HEDA 120 (120 × 95) | 2.5 mm | Q355B / S355JR | 19.80 | 118.5 | 22,000 kg | 3,300 - 3,900 mm | AS 4084 / CE Marked |
| HEDA 140 (140 × 95) | 3.0 mm | Q355B / S355JR | 28.40 | 198.8 | 30,000 kg | High-Bay AS/RS > 12m | EN 15512 / Seismic Cat D |
Future Global Trends in Pallet Rack Frame Sourcing
How supply chain directors, industrial developers, and racking distributors are adapting their factory procurement strategies to navigate automated fulfillment, sustainability mandates, and seismic building codes.
1. High-Bay Verticality & AS/RS Precision
With warehouse land costs rising worldwide, vertical upright frames are pushing past 24 meters in automated storage and retrieval systems (AS/RS). Procurement teams demand factory roll-forming tolerances within ±1.0 mm per 10 meters, zero camber deviation, and continuous automated punching to ensure high-speed stacker cranes and shuttles operate without mast vibration or track binding.
2. Seismic Ductility & Baseplate Engineering
Stringent updates in Eurocode 8, US IBC/RMI, and Australasian building regulations require enhanced seismic resilience. Upright procurement now prioritizes energy-dissipating bolted baseplates, ductile anchor bolting geometry, and Q355B low-carbon alloys that deliver high strain energy absorption without brittle fracture under horizontal seismic acceleration.
3. Cold-Chain & Sub-Zero Metallurgical Stability
The explosive expansion of refrigerated e-grocery and biopharma hubs has created unprecedented demand for cold-room uprights operating between -25°C and -35°C. Modern buyers mandate Charpy V-Notch impact testing at -20°C (≥27 Joules) to guarantee steel ductile-to-brittle transition temperature (DBTT) thresholds are safely avoided.
4. Circular Low-Carbon Steel & Knock-Down Packaging
Scope 3 carbon reduction targets are driving EU and American purchasers toward manufacturers utilizing electric arc furnace (EAF) steel and zero-VOC powder coatings. Furthermore, fully knocked-down (K/D) bolted upright frames reduce container shipping volume by up to 65% compared to pre-welded frames, drastically lowering maritime logistics carbon intensity.
10-Stage Precision Manufacturing Process
Every pallet rack upright frame shipped from our Guangzhou factory undergoes continuous automated fabrication under strict ISO 9001:2015 quality assurance.
Raw Steel Inspection
Precision Slitting
CNC Auto-Punching
Cold Bending Forming
Multi-Roll Forming
Edge Deburring
Robotic Welding
Pickling & Phosphating
Powder Coating Line
QC & Seaworthy Packing
25 Years of Factory-Direct Engineering Excellence
Established in 2001, Guangzhou HEDA Shelves Co., Ltd. is an internationally certified enterprise delivering precision cold-formed steel racking systems. We partner directly with global racking distributors, EPC warehouse contractors, and Fortune 500 logistics brands.
In-House Roll-Forming Lines
Over 16 high-speed automated cold roll-forming lines operating continuously with offline CNC punch presses capable of micro-tolerance hole pitch accuracy (±0.1mm) over 12-meter single column lengths.
Free Engineering & 3D Layouts
Our senior structural engineering team prepares comprehensive AutoCAD floor plans, 3D architectural renders, and ANSYS finite element analysis (FEA) structural stress reports before contract signing.
OEM & ODM Private Label
Full private label manufacturing support for global racking brands and local installation dealers. Custom powder-coat RAL matching, custom embossed column stamping, and bespoke steel profile extrusion.
Seaworthy Container Optimization
Engineered bundle strapping and steel dunnage pallets designed specifically for 40-foot High Cube (40HQ) maritime shipping. Maximizes container weight limits to minimize sea freight costs per ton.
Frequently Asked Questions: Pallet Rack Upright Procurement
Direct answers to the critical engineering, logistical, and commercial inquiries asked by international warehouse racking buyers and project engineers.
What is the structural difference between welded and bolted upright frames?
Bolted upright frames connect cold-formed vertical columns via C-channel horizontal and diagonal bracing struts using M10/M12 grade 8.8 tensile bolts and nyloc locking nuts. Bolted frames allow damaged struts or posts to be replaced on-site without cutting or welding. Crucially for overseas shipping, bolted frames can be shipped knocked-down (K/D), increasing 40HQ container packing density by over 60% compared to factory-welded frames.
How do you guarantee material yield strength and thickness tolerances?
We source prime hot-rolled coil (HRC) steel strictly from tier-one Chinese mills such as Baosteel, Shougang, and Ansteel. Every coil delivery includes a validated Mill Test Certificate (MTC EN 10204 3.1) stating chemical composition (C, Si, Mn, P, S) and mechanical yield ($R_e$), tensile strength ($R_m$), and elongation ($A$). Column thickness tolerances are held within ±0.05 mm, well inside international ASTM and EN standards.
Can your factory manufacture universal teardrop uprights compatible with US brands?
Yes. We operate specialized CNC tooling lines specifically dedicated to the North American universal teardrop punching profile on a 2-inch (50.8 mm) vertical center. Our teardrop upright posts (standard 3" × 3" and 3" × 1-5/8" sections) mate seamlessly with major US beam connector pins, gravity safety locks, and column baseplate configurations in full compliance with RMI MH16.1 specifications.
What surface treatment is best for cold storage or coastal marine warehouses?
For standard ambient warehouses, our multi-stage pre-treatment (alkaline degreasing, zinc phosphating, deionized water rinsing) followed by electrostatic polyester powder coating (60-90 μm) provides excellent durability exceeding 500 hours in ASTM B117 salt spray tests. For sub-zero cold stores or humid coastal facilities, we supply hot-dip galvanized (HDG) upright frames conforming to ISO 1461 with zinc bath coating thicknesses of 65-85 μm for permanent corrosion resistance.
How do you verify the load carrying capacity of upright frames?
Frame capacities are calculated in strict accordance with the finite element modeling guidelines of EN 15512:2020. Additionally, physical testing is conducted at our in-house test rig: stub-column compression tests determine effective cross-sectional area and yield reduction factors; cyclic bending tests verify beam end-connector looseness ($\alpha$ factor); and frame sub-assembly tests assess bracing shear stiffness.
What is the standard production lead time and minimum order quantity (MOQ)?
Our standard production lead time is 15 to 25 calendar days for a 1-to-5 container order (approx. 50 to 125 metric tons). Standard colors (RAL 5015 Blue, RAL 5010 Royal Blue, RAL 2004 Orange, RAL 7035 Grey) carry an MOQ of one 20GP container (approx. 12-14 tons). Custom roll-formed dimensions, special punching pitches, or bespoke RAL colors require a minimum order volume of 20 metric tons.
Do you provide structural calculation packages for local building permits?
Yes. For European, American, Australian, and Middle Eastern projects, our structural engineers provide comprehensive statics documentation. This includes AutoCAD installation layouts, load capacity warning plaques, 3D structural model files, and calculation dossiers detailing baseplate pressure, anchor pull-out shear loads, and seismic bracing distribution verified against local building codes.
How are upright frames packaged to prevent maritime transit damage?
Upright posts and bracing members are bundled using automated pneumatic steel-strapping equipment with protective heavy-duty corrugated corner guards. Baseplates, shims, and high-tensile hardware are packed in reinforced, fumigated solid wood crates (ISPM 15 certified). Each bundle is mounted on longitudinal channel steel dunnage feet, allowing rapid unloading via standard forklift tines without scratching powder-coat finishes.
Partner with China's Premier Upright Frame Manufacturer
Eliminate distributor markups and secure factory-direct wholesale pricing from Guangzhou HEDA Shelves Co., Ltd. Send your warehouse architectural drawings or procurement bill of quantities (BOQ) to receive engineered layout drawings and competitive FOB/CIF quotation within 24 hours.
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