Industrial-grade heavy-duty trusses are not just "enlarged versions" of ordinary trusses—they are specialized trusses designed for "high loads, long-term use, and harsh environments." Capable of withstanding weights ranging from several tons to over a dozen tons, they can remain in service for 5–10 years in scenarios like factory workshops, logistics warehouses, Square Truss and heavy equipment areas. For "heavy-duty tasks" such as suspending heavy machinery, building production line platforms, and constructing storage racks, only these trusses can hold their own. II. You can simply pick one based on "what the work site requires.
Different industrial scenarios have varying "load-bearing directions and environmental conditions," Aluminum Square Truss System so the corresponding Truss types also differ. Avoid blind selection: 1. Steel Heavy-Duty Triangular Trusses (Focus on "Strong Torsion Resistance + Large Spans")
Structural Features: Square Truss for Stage Lighting Welded from Q345 steel into an isosceles triangular cross-section (side length 300–600mm). Both the hypotenuse and right-angled sides are equipped with "cross stiffeners," and 10–15mm thick reinforcing plates are welded at joints to prevent stress cracking. Core Advantages:
Extreme Torsion Resistance: Heavy-Duty Square Truss For example, an outdoor truss with a 12-meter span can hold a 3-ton large fan and remain untwisted even in a level-5 side wind. Flexible Spans: Can achieve a maximum span of 20 meters (with one support column added in the middle), Square Truss Rigging Hardware eliminating the need for frequent additional supports—ideal for large workshop spaces. Applicable Scenarios:
Factory Workshops: Suspension frames for heavy machinery (e.g., 5-ton robotic arm rails), overhead equipment frames for production lines (for hanging conveyors and heavy lighting).
Outdoor Industrial Areas: Square Truss for Event Stages Maintenance platform frames for large equipment (6–10 meters tall), outdoor heavy-duty billboard frames (15–20 meter spans). Key Requirement: Must undergo "Industrial Heavy Duty Stage Truss hot-dip galvanization + spray coating" for dual corrosion protection (coating thickness ≥120μm). For workshops with oil contamination, reapply oil-resistant topcoat every 2 years. 2. Steel Heavy-Duty Square-Tube Trusses (Focus on "Powerful Vertical Load-Bearing")
Structural Features: Heavy Duty Stage Truss System Square-tube cross-section (300×300mm–600×600mm) with a wall thickness of 5–10mm. "Longitudinal stiffeners" are added inside (one every 50cm), and 200×200×15mm steel plate bases are welded to the bottom to increase contact area with the ground. Core Advantages:
Top-Tier Vertical Load-Bearing: A single 300×300mm section can withstand 6 tons with an 8-meter span—for instance, supporting 3 layers of heavy-duty racks (2 tons per layer) with no issues.
Stable Installation: Bases are fixed to concrete floors using M20 expansion bolts (4 bolts per column), preventing sinking or tilting.
Applicable Scenarios:
Logistics Warehouses: Load-bearing frames for heavy-duty storage racks (3–5 meters tall, used for storing metal materials and heavy parts).
Factory Workshops: Platform frames for production lines (e.g., a 2-meter-tall operating platform that can hold 5 workers + 2 tons of equipment), Durable Industrial Stage Truss suspension frames for heavy tools (for hanging 3-ton hydraulic wrenches and crane accessories).
Just a heads-up: If there’s vibration in the workshop—like if there’s a stamping machine nearby—remember to put "rubber shock pads" under the bases.
3. Special Alloy Heavy-Duty Trusses (Focus on "Harsh Environment Resistance")
Structural Features: Strong Stage Truss Structure Made of manganese steel or stainless steel (304/316L), with a mostly trapezoidal cross-section (200mm top base, 400mm bottom base) and a wall thickness of 8–12mm. Welding is done via "argon arc welding + flaw detection testing" to ensure no cracks in welds.
Core Advantages:
Corrosion & Temperature Resistance: The 316L stainless steel version can be used in coastal factories (salt spray environments) for 10 years without rust; the manganese steel version works in cold storage (-30℃) or high-temperature workshops (50℃).
Ultra-High Strength: A single 400×400mm section can withstand 8 tons with a 10-meter span—suitable for extreme scenarios.
Applicable Scenarios:
Specialized Factories: Equipment frames in chemical workshops (acid/alkali corrosion resistance), heavy-duty racks in food processing plants (easy-to-clean stainless steel), heavy-duty storage racks in cold storage (low-temperature resistance).
Outdoor Extreme Environments: Port equipment frames in coastal areas (salt spray resistance), maintenance frames for heavy mining equipment (dust resistance and impact resistance).
Key Reminder: Stainless steel trusses cost 2–3 times more than ordinary steel ones. Avoid choosing them for non-extreme scenarios to prevent waste.
IV. Daily Maintenance: 3 Regular Tasks to Extend Service Life
Regular Load-Bearing & Deformation Inspections:
Use a "total station" every 3 months to measure truss span and height. The dimensional difference from the installation size must not exceed 5mm (exceeding this indicates truss deformation—immediately stop use). For welds in load-bearing areas, conduct "magnetic particle inspection" every 6 months to check for cracks.
Corrosion Protection Maintenance:
Apply anti-rust paint to ordinary steel trusses once a year (first remove oil and rust, then apply primer + topcoat). Wipe the surface of stainless steel trusses with clean water every 3 months to prevent salt and dust accumulation.
Debris Cleaning:
Do not pile irrelevant materials on trusses (e.g., placing parts on truss crossbars), and prohibit workers from standing on trusses to operate (this adds extra load). Promptly stop any non-compliant behavior when observed.
Wuxi Zhongshengwei Metal Products Co., Ltd.
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