Libec RT30B-3 Leg Semi Assembly for the Libec Model H38B
Libec RT30B-3 Leg Semi Assembly for the Libec Model H38B is backordered and will ship as soon as it is back in stock.
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The Libec RT30B-3 Leg Semi-Assembly is an original factory replacement leg sub-assembly engineered directly for Libec’s 75mm tripod series. While Libec tripod components are built to handle intense field production and Electronic News Gathering (ENG) routines, accidents on set—such as a side-impact drop, vehicle trunk pinch, or cross-threaded locking collars—can damage a single leg segment while leaving the main 75mm head casting and fluid head completely intact.
Rather than forcing production houses to buy an entirely new tripod system, Libec provides the RT30B-3 as a direct repair component to swap out a compromised leg assembly, returning the kit to factory specifications.
1. Perfect Hardware Synergy: Designed for the H38B Fluid Head Ecosystem
The Libec H38B is a highly popular, classic 75mm claw ball professional fluid head with a fixed counterbalance, rated for mid-capacity setups up to 8kg (17.5 lbs). The legacy system typically paired this head directly with the native RT30B 2-stage aluminum tripod legs.
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Zero-Tolerance Casting Alignment: The top yoke of the RT30B-3 sub-assembly is machined to perfectly match the spacing of the pivot pins on the 75mm bowl casting of the RT30B legs.
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Torsional Spec Matching: It features the exact same tube diameters and high-tensile aluminum compound formula as the original legs. This ensures that when the leg is fully extended under a max-capacity H38B camera payload, it bends and flexes identically to the other two legs, preserving the tripod's overall torsional tracking balance.
2. Complete Multi-Stage Leg Architecture
The "Semi-Assembly" designation means this is a comprehensive, multi-stage structure that comes pre-assembled from the factory, rather than an unjointed loose tube. It includes:
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The Twin-Strut Upper Aluminum Stage: Provides structural width and mounts directly to the tripod's main crown via heavy-duty hinge hardware.
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The Intermediate & Lower Leg Extensions: High-strength telescoping aluminum sections that provide a versatile vertical height threshold.
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Integrated Cine-Style Rotary Clamping Locks: Features Libec's robust, oversized rotating locking levers pre-installed on the leg segments. These temperature-independent locks provide high gripping force to eliminate vertical leg slipping, even when working in sub-zero alpine locations or extreme desert heat.
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Native Foot Ground Interface: The lower leg section terminates in standard dual stainless steel spiked feet, ready to accept the standard Libec floor spreader or rubber foot pads.
3. Re-Establishing Original System Performance
Once installed, the RT30B-3 sub-assembly allows the H38B support system to perfectly regain its factory operational parameters:
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Payload Support Integrity: Guarantees the system's full 12kg (26.5 lbs) tripod leg load threshold is safely restored, easily handling the 8kg maximum load limit of the H38B head.
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Seamless Height Transitions: Ensures smooth, clean telescoping motion from an ultra-low profile height up to the system's maximum extension.
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Mass Optimization: Keeps the overall system highly portable, maintaining the legs' original 2.6kg (5.7 lbs) weight profile for effortless run-and-gun transit.
Technical Summary & Specifications:
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Component Type: Original Factory Replacement Leg Semi-Assembly
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Part Reference Code: RT30B-3
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Native System Compatibility: Libec RT30B Tripod Legs (Optimized for the Libec H38B / H38 / LX7 System Heads)
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Fitting Interface: 75mm Bowl System Leg Mount Pivots
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Material Composition: Die-Cast Aluminum Upper Casing / Aircraft-Grade Aluminum Tubes
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Leg Design Configuration: 2-Stage / 3-Section Twin-Strut Architecture
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Locking Mechanism: Integrated Rotating Cine-Style Lever Clamps
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Terminal Base: Hardened Dual Stainless Steel Spikes
Repair Advice for Production Techs:
When replacing a full leg section like the RT30B-3, always perform the teardown on a clean, flat surface. Retain the original hinge pins, washers, and lock nuts from the tripod’s main upper 75mm bowl crown casting, as replacement leg sub-assemblies are designed to drop directly into your existing structural pivot hardware.
Restore your trusted ENG support setup to full factory precision—integrate the original Libec RT30B-3 leg sub-assembly into your repair workflow!





