Bronto Debuts 170-Ft. Aerial

Wed September 26, 2007 - National Edition
Construction Equipment Guide

Featuring a horizontal outreach of more than 115-ft. (35 m), Bronto Skylift’s S-170 XDT is capable of lifting a three-person crew and their equipment — up to 1,400 lbs. (635 kg) total — to a 170-ft. (51.8 m) platform height.

The S-170 XDT aerial device is mounted on an 8- by 6-ft. (2.4 by 1.8 m) International commercial chassis.

In its stowed position, the platform boom folds next to the main boom for an extremely low 13-ft. (4 m) transport height while the platform itself folds underneath the main boom for a total transport length of only 39-ft. (12 m). With a gross vehicle weight of approximately 58,000 lbs. (26,308 kg), the S-170 XDT is said to be road legal in all states.

Another feature of the S-170 XDT is the Bronto +3 advanced control system that monitors the outrigger settings and platform load and automatically keeps the platform within safe operating parameters. It also oversees axle lock, automatic outrigger deployment and leveling status. If the outriggers are not positioned correctly or there is zero ground pressure on an outrigger, there are alarms to warn the operator. The boom is interlocked with the outriggers and cannot be operated without their proper deployment. A single control button activates the outriggers and leveling system, which can be positioned in less than a minute. Identical control panels are located on the platform and at the turntable control station.

SI-178 HDT

Bronto’s model SI-178 HDT insulated aerial work platform is designed for accessing sub-transmission and transmission lines up to 500kV.

It has a 178-ft. (54 m) working height, 73-ft. (22 m) horizontal reach, and 1,000-lb. (453 kg) platform capacity.

The SI-178 HDT is mounted on a TOR 8- by 6-ft. chassis with all-wheel drive and all-wheel steer that enables crews to navigate almost any terrain, yet is compact and light enough to be driven over open roads, according to the manufacturer.

The insulated Bronto SI-178 HDT features a HYCOTEC Inc. designed fiber optic control system sending control and intercom signals through a 185-in. (470 cm) long filament-wound fiberglass jib boom.

The boom’s sealed design prevents internal contamination and a silica gel desiccant canister inside the boom controls internal atmospheric humidity. A sharp-edge corona ring on the boom provides a consistent voltage gradient along the boom’s length.

Together these features insulate the work platform from the aerial device.

For more information, call 352/895-1109 or visit

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