Libec Dolly for RT20C, RT30B, RT40RB, RT50B and RT50C

The Libec DL-3RB is a heavy-duty tracking dolly engineered specifically as a mobile base for standard and high-rigidity seventy-five millimeter and one hundred millimeter video legs. It allows production crews to execute fluid tracking shots in any direction over flat surfaces without installing rigid track networks.

Core Features & Practical Utility

• Universal Frame Support Geometry: The structural framing layout is built out of high-grade aluminum. It spans a flat thirty-five point four inch (ninety centimeter) doorway clearance width, providing a rigid footprint that stabilizes heavy camera payloads and prevents leg flexing during sharp pans.

• Adjustable Rubber Spike Sockets: The outer tips feature thick, heavy-duty rubber anchor loops. These straps stretch over and clamp down onto the dual-metal ground spikes of the RT30B, RT40RB, RT50B, and RT50C leg lineups. Because the loops match varying spike shapes, this layout is also cross-compatible with select production tripods from Sachtler, Manfrotto, and Vinten.

• High-Grade 3.9-Inch Fluid Casters: The rolling array relies on oversized 3.9-inch (one hundred millimeter) composite wheels that glide easily over minor floor surface obstructions like studio tape markers, shallow flooring gaps, and small cable lines.

• One-Touch Foot Braking: Every caster wheel is paired with a distinct, foot-activated step pedal. Pressing down on the toggle locks down both the wheel rolling axis and the physical swivel bearing at the same time, turning the mobile setup into a rock-solid, stationary platform.

• Central Structural Carry Handle: The central junction triangle houses a built-in hinge handle. To pack up, you unlatch the structural safety lock pins and lift straight up on the central handle; the entire structure collapses together flat into a tight, travel-friendly package.

Hardware Technical Specifications Matrix:

Operational System Tips for the DL-3RB Setup:

💡 The RT20C Ultra-Light Step-Up: If you are pairing this dolly with the specialized RT20C travel carbon legs, notice that because the RT20C has a narrower physical leg angle profile than its larger eighty-millimeter and one-hundred-millimeter brothers, the legs will pull closer together. If you require variable length compensation to adjust leg stance precisely for the RT20C, you should step up to the companion Libec DL-5RB, which features integrated telescopic sliding extension arms to shift individual leg widths.

• Managing Storage Grit: When packing up after a tracking shoot on outdoor surfaces or brick walkways, inspect the rubber spike retention cavities. Wipe out loose grit or gravel before folding the chassis arms; keeping the main aluminum hinge junctions free of packed debris ensures the safety lock pins snap fully home every time.