Precision-Engineered
Strut Channel Systems
Factory-direct carbon steel & proprietary high-strength aluminum alloy channels. Engineered for zero-weld modular MEP framing, heavy electrical busway runs, and severe-corrosion infrastructure installations
Built to Solve Job-Site Tolerances, Sourcing Delays & Structural Fatigue
Contractors and supply chain managers choose Lonsonstrut to standardize framing systems across data center, utility tunnel, and MEP projects while eliminating quality variance.
Strict Dimensional Control
Continuous roll-forming and cold stamping hold critical inward lip tolerances within ±0.2 mm, ensuring channel nuts and spring bolts seat instantly without slipping.
Heavy Corrosion Defense
Choose from ASTM A123 Hot-Dip Galvanizing, Pre-Galvanized steel, 304/316 Stainless, or self-passivating High-Strength Aluminum for harsh coastal and tunnel dampness.
Certified Batch Traceability
Full raw material mill test certificates (MTC), mechanical yield testing, salt-spray validation, and independent dynamic fatigue testing for critical submittals.
Turnkey System Matching
100% compatibility guarantee across strut channels, cantilever arms, beam clamps, pipe rings, cushion clamps, and spring nuts from a single tier-1 manufacturer.
Comprehensive Strut Channel Portfolio
Available in continuous solid lengths, standard slotted patterns, welded back-to-back combinations, and specialized heavy-gauge profiles.
Plain Strut Channel
Solid web channel designed for maximum torsional strength, heavy cantilever bracket bases, and welded structural assemblies.
- 41×41 mm & 41×21 mm
- Highest continuous load rating
Slotted Strut Channel
Standard elongated slots (14×28 mm or 11×35 mm) on 50 mm centers for fast on-site fastener alignment without drilling.
- 41×41, 41×21, 41×62 mm
- Optimized for MEP grid suspension
Combination Strut Channel
Two 41×41 mm sections continuously MIG welded or clinched back-to-back to double moment of inertia for long spans and heavy risers.
- 41×82 mm overall depth
- High-load multi-tier pipe racks
High-Strength Aluminum
1/3 the weight of steel with 728 MPa tensile capacity. Non-ferromagnetic structure eliminates eddy currents in high-voltage power tunnels.
- 41×41 mm & custom profiles
- Data centers & power subways
Standard Dimensional & Material Specifications
Standard 3-meter and 6-meter cut lengths shipped from stock. Fully customizable hole patterns, gauges, and pre-cut lengths on project order.
| Model / Dimension | Gauge / Thickness | Weight (Approx. kg/m) | Standard Finishes | Moment of Inertia (Ix) | Applications |
|---|---|---|---|---|---|
| SC-4141 (41 × 41 mm) | 2.5 mm (12 Ga) / 2.0 mm (14 Ga) | 2.65 kg/m (Steel) / 0.95 kg/m (AL) | HDG, PG, Epoxy, Anodized | 6.05 cm⁴ | Universal MEP, Trapeze Racks |
| SC-4121 (41 × 21 mm) | 2.0 mm (14 Ga) / 1.5 mm (16 Ga) | 1.50 kg/m (Steel) / 0.55 kg/m (AL) | HDG, PG, Zinc Plated | 1.12 cm⁴ | Light Cable Trays, Conduit Support |
| SC-4162 (41 × 62 mm) | 2.5 mm (12 Ga) | 3.50 kg/m (Steel) | HDG, Pre-Galvanized | 15.20 cm⁴ | Heavy Industrial Piping & Ducts |
| SC-4182 (41 × 82 mm Dbl) | 2.5 mm × 2 (Welded) | 5.30 kg/m (Steel) / 1.90 kg/m (AL) | HDG, Stainless 316 | 33.40 cm⁴ | Heavy Riser Shafts, Bridge Struts |
| SC-AL-728 (High-Strength AL) | 3.0 mm (Integrated Forming) | 1.25 kg/m | Anodized / Natural Passivation | 7.80 cm⁴ | Power Tunnels, Metro, Data Centers |
14×28 mm elongated slots on 50 mm centers; round Ø14 mm holes; continuous solid without holes.
Q235B / Q355B structural carbon steel, SS304/SS316, and proprietary 6000/7000-series engineered aluminum alloys.
Manufactured in compliance with MFMA-4 (Metal Framing Manufacturers Association) & ISO 9001 factory controls.
Engineered for Severe Loads & Demanding Environments
From high-density hyperscale data facilities to subterranean 220kV power tunnels, Lonsonstrut supports global engineering infrastructure.
Hyperscale Data Centers
Ceiling-grid busway drops, fiber runner supports, and high-density cable tray framing designed to maximize overhead airflow and floor space.
Utility & Pipe Tunnels
Combined multi-utility racks carrying water supply, district heating, and municipal gas piping with pre-embedded concrete insert channels.
220kV+ Power Transmission
Non-ferromagnetic aluminum channels prevent eddy current heating losses around single-core high-current lines in urban underground substations.
HVAC & Plumbing Trapeze
Standard trapeze assemblies suspended by threaded rod for fast horizontal duct, chilled water, and fire sprinkler line installations.
Subway & Rail Stations
Tested through 2 million dynamic fatigue cycles to safely withstand continuous train vibration, piston wind pressure, and humidity.
Petrochemical & Plants
Heavy-duty multi-tier pipe bridges, chemical-resistant hot-dip finishes, and stainless steel framing for process piping.
Why Lonsonstrut High-Strength Alloy Outperforms Carbon Steel
Through nearly 100 national patents and continuous metallurgical innovation, Lonsonstrut replaces bulky welded steel with ultra-light, high-load aluminum alloy framing.
65% Lighter Overhead Installation
Only 1/3 the density of carbon steel. Drastically reduces physical crane handling, installation time at heights, and secondary dead loads on building trusses.
83% Higher Connection Slip Resistance
Patented 3D wedge-locking channel lips and serrated channel nuts prevent fastener displacement under heavy dynamic surge and thermal cycling.
Integrated Forming · Zero Welds
Eliminates heat-affected zones (HAZ), weld deformation, and micro-cracking common in welded brackets, providing consistent batch-to-batch yield strength.
Engineering Performance Comparison
Custom Extrusion, Punching & Direct Packaging
Full-cycle OEM manufacturing for global strut channel brands, EPC contractors, and distributor private labels.
CAD & Tooling R&D
Send 2D/3D drawings or sample pieces. In-house mold design and tooling validation completed within 7 to 15 days.
Custom Lengths
Continuous roll-forming with tailored slot sizes (14×28, 11×35, round holes) and exact precision cut lengths from 0.5m to 12m.
Surface Finishing
Hot-Dip Galvanized (ASTM A123), Pre-Galvanized (G90), Anodized, Dacromet, or custom powder coating per spec.
Private Label & Bundling
Laser logo marking, custom barcode labeling, steel strapped export bundles with waterproof wrapping, and containerized palletizing.
Frequently Asked Questions
Direct answers regarding system compatibility, load calculations, lead times, and international shipping.
Are Lonsonstrut channels compatible with standard US/European fittings?
Yes. Our standard 41×41 mm (1-5/8" × 1-5/8") and 41×21 mm profiles strictly comply with international MFMA standards. All standard channel nuts, cantilever arms, beam clamps, and base plates will interlock seamlessly.
When should we specify Aluminum Alloy over Hot-Dip Galvanized steel?
Aluminum is strongly recommended when structural dead-load must be minimized (overhead trapezes, rooftop piping), in high-voltage environments where non-ferromagnetic materials prevent eddy-current losses, and in coastal/humid conditions where long-term repainting is impossible.
What is your production capacity and typical export lead time?
Our 133,000 m² factory in Zhengzhou has an annual capacity exceeding 100,000 metric tons. Standard slotted and solid profiles ship within 7 to 15 days. Custom extrusions or specialized OEM orders typically ship within 20 to 30 days.
Do you provide Mill Test Certificates (MTC) and load calculation reports?
Every production batch includes full EN 10204 3.1 Mill Test Certificates detailing chemical composition, yield, tensile strength, and coating thickness (e.g., HDG microns). Engineering calculation sheets for project submittals are available upon request.