Bucyrus 8750 Walking Dragline
The Bucyrus 8750 Walking Dragline is one of the premiere excavators in the mining world today. The TWH 1:50 scale reproduction of this legend is faithfully detailed to match the real machines looks in every way. Even the hoist and drag rope lines can be manually operated by drum-wind mechanisms with the insertion of a key into the side of the housing.
The main boom structure features complete photo-etched catwalks, walkways and landings with plastic handrails for durability and proper scale appearance. The housing of the model features all of the major detail found on the real Bucyrus 8750, such as the operator’s cab, electrical cabinets, walkways, and fully detailed rooftop air filtration system.
The main hoist ropes run on sheaves mounted on the tri-structure boom support, and are manually operated by inserting a key into the left side of the housing. The main drag ropes are also operated in this same way. The robust tri-structure boom support holds up the weight of the main boom by means of four heavy-duty boom-point lines.
The roof top is equipped with exposed air filter assemblies which are used on the real dragline for pulling in air through the filtered intakes into the pressurized housing. There are eight air filtration fan assemblies; four per side, each with two scavenge fans, all with fully detailed photo-etched catwalks with metal railings.
The upper portion of the eccentric cam of the walking system protrudes through the revolving frame deck and is clearly visible from either side of the model. Each cam has a walking shoe attached to it, featuring details such as railings and steps.
The 8750 scale model features a fully detailed eccentric-cam walking system, with the walking shoes in a raised “fixed” working position, allowing full rotation of the upper works on the machine base, better known as the “tub.”
The large front-mounted lower sheaves of the over-and-under fairlead structure are pinned in place on the revolving frame so they can swing from left to right to match the pull of the dragropes. The 8750 dragline features fully detailed walkways running up and down each side of the main boom.
No attention to detail has been overlooked in the design of the “4-chord” boom structure itself, which is both strong and lightweight in construction. The rear view of the 8750 highlights the metal louvered vents that run across the lower portion of the housing, just above the revolving frame structure. The 8750 is equipped with a fully detailed extended operator’s cab mounted on the right side of the upper frame structure.
The main dragline bucket is controlled by two turn-keys that operate the main hoist and drag rope lines on the left side of the main housing. This allows the bucket to be displayed in an unlimited number of desired digging or dumping positions.
The 8750 features a fully detailed dragline bucket complete with equalizers, dump blocks, and dual drag-chains for the most realistic 1:50 scale appearance possible.
** Pictures are from the tooling sample **