Pin-lock trusses for concert stages are core structural components that connect quickly via pins to support stage equipment. Every aspect, from application scenarios and specific uses to performance parameters and safety precautions, must align precisely with the requirements of the performance—after all, Pin-Lock Truss for Concert Rigs these directly impact the safety of the setup. Application Scenarios: Adapting to Concert Stages of Different Scales and Environments
The specification of pin-lock trusses is determined by the concert venue conditions, performance scale, Portable Pin-Lock Truss for concert rigs and equipment configuration needs, mainly falling into the following categories: Indoor Concert Scenarios: It is suitable for performances in concert halls, stadiums, theaters, and other venues, often used to build fixed lighting trusses and LED screen support frames. Pin-lock Truss for outdoor concert rigs It needs to adapt to flat indoor floors and limited heights (usually 4-8 meters) while balancing the aesthetic appearance of the stage and the load-bearing capacity of the structure. Outdoor Music Festival Scenarios:It applies to open-air music festivals, outdoor concerts, and similar scenarios. As it needs to withstand environmental influences such as wind, rain, and temperature changes, the truss must be rust-resistant and wind-resistant. It is usually used as the main frame of mobile stages and speaker suspension frames, and in some cases, wind-resistant cables are required to enhance stability.
Small and Medium-Sized Tour Scenarios:Pin-lock truss for indoor concert venue rigs It targets scenarios such as bar performances and small theater tour shows. Due to the need for frequent assembly, disassembly, and transportation, lightweight pin-lock trusses (single-section weight ≤ 30kg) are preferred to meet the requirements of quick setup (single-section assembly time ≤ 10 minutes) and easy transportation.
Large-Scale Ceremony Scenarios:It is used for events such as award shows and New Year's Eve concerts. The stage structure in such scenarios is complex (including multi-layer trusses and special-shaped trusses), so heavy-duty pin-lock trusses need to be used in combination to support large LED screens (single screen weight ≥ 500kg) and multi-layer lighting equipment.
Core Uses: Supporting Key Stage Equipment
Their uses revolve around "equipment installation" and "structural formation" of the Concert Stage, specifically categorized into three types: Equipment suspension: The core function is to suspend lighting (e.g., PAR lights, moving head lights) and audio equipment (e.g., main speakers, monitor speakers). Pin-lock connections form a stable "suspension layer," preventing equipment from taking up stage space by being placed directly on the ground.
Structural support: They support LED displays (including main screens, side screens, and floor screen frames), stage backdrops (e.g., printed cloth, gauze curtains), and some serve as support skeletons for stage steps and guardrails to ensure the overall formation of the stage.
Space division: In large-scale concerts, trusses are used to divide stage areas (e.g., main stage, interactive area, waiting area) or build "access trusses" (for staff to maintain equipment), optimizing the use of stage space.
Load-Bearing Capacity:It is the most critical performance parameter, divided into three levels based on applicable scenarios. "Lightweight trusses" (per-meter load ≤ 200kg) are used for small and medium-sized performances; "medium trusses" (per-meter load 200–500kg) for regular-scale performances; and "heavy-duty trusses" (per-meter load ≥ 500kg) for large-scale performances. All trusses must clearly mark the maximum safe load.
Connection Efficiency:It is a core advantage of the pin-lock structure. High-quality trusses can be connected in ≤ 5 minutes per section with 2 operators. Additionally, pins must be equipped with anti-fall buckles to prevent accidental detachment during setup, meeting the needs of scenarios requiring frequent assembly and disassembly such as tours.
Environmental Adaptability:Trusses used indoors need to have rust resistance (e.g., galvanized surface treatment); Pin-Lock Truss for Concert Rigs trusses used outdoors require enhanced corrosion resistance (e.g., electrophoretic rust prevention + spray coating process) and wind resistance (wind load ≥ 0.5kN/㎡); in low-temperature environments (≤ -10℃), low-temperature-resistant materials (e.g., Q235B steel) must be used to prevent material brittleness and cracking due to low temperatures.
Structural Stability:Truss joints must be firmly welded (welding point tensile force ≥ 30kN), and the spacing between crossbars and vertical bars must be uniform (conventional spacing 30–50cm); after assembly, the overall deflection must be ≤ 1/500 (i.e., the maximum sag of a 10-meter-long truss ≤ 2cm) to prevent equipment shaking during operation.
Usage Precautions: Ensuring Setup and Performance Safety
The process of "inspection first, assembly second, acceptance last" must be strictly followed. The core precautions are as follows:
Pre-installation inspection is essential: Check each truss component one by one before assembly. Ensure pins are intact (no deformation or wear), truss pipes have no cracks (especially at welds), and connectors (e.g., flanges) are not loose. Aluminum Pin-Lock Truss Damaged components are prohibited from use. Do not exceed load limits: Distribute equipment strictly according to the "safe load" marked on the truss. Overloading is prohibited (e.g., lightweight trusses cannot support heavy LED screens). When suspending equipment, distribute the weight evenly to avoid truss tilting due to uneven weight on one side.
Standardize the assembly process: First fix the base (e.g., fix to the ground with expansion bolts or use counterweights), Heavy-Duty Pin-Lock Truss then assemble section by section from bottom to top. Insert pins and fasten anti-fall buckles after installing each section. The illegal operation of "installing the top first and then the bottom" is prohibited. Prepare for environmental adaptation in advance: Confirm the weather before outdoor use (suspend setup when wind speed ≥ level 5). Place waterproof pads under trusses in humid environments to prevent bottom rust. Pin-Lock Truss System for Stages In high-temperature environments (≥ 35℃), check if pins are stuck due to thermal expansion and contraction, and apply lubricating grease if necessary. Post-installation acceptance and maintenance: After setup, use a level to check if the truss is horizontal and a dynamometer to test the stability of suspension points. Disassemble the truss promptly after the performance, Pin-Lock Truss clean dust from the truss surface, check pin wear, and promptly derust and repaint rusted components with anti-rust paint.
Wuxi Zhongshengwei Metal Products Co., Ltd.
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