66ft JLG 660SJ DIESEL STRAIGHT BOOM

The JLG 660SJ is a diesel-powered telescopic (straight) boom lift delivering a working height of 22 m (72 ft) and a platform height of 20 m (66 ft), with a horizontal outreach of 17.4 m (57 ft). Platform capacity is 250 kg unrestricted or up to 340 kg in restricted mode, making it capable of carrying two operators with tools for most trade applications. Diesel power and 4WD drive make it well suited to outdoor construction sites, industrial facilities, and large infrastructure projects where all-terrain capability is required.

What distinguishes the 660SJ from articulated boom alternatives at a similar height is its straight telescopic design — it extends directly outward with minimal obstruction, giving operators a clear, direct path to elevated work without the overhead hazards that come with knuckle-boom geometry. The 130-degree jib articulation adds flexibility at height for angled access, while the 360-degree continuous turntable swing allows full rotation without cable restriction. With a machine weight of around 12,500 kg and foam-filled lug-tread tyres, the 660SJ handles soft or uneven ground well, and its 45% gradeability makes it effective on sloped sites typical of Victorian construction terrain.

In the Geelong region, the 660SJ is frequently hired for structural steelwork, large commercial builds, bridge maintenance, and industrial plant shutdowns where operators need reliable reach well above 20 m on surfaces that cannot support track-mounted machines.

Key Features

• Working Height: 22 m / 72 ft
• Platform Height: 20 m / 66 ft
• Horizontal Outreach: 17.4 m / 57 ft
• Platform Capacity: 250 kg unrestricted / 340 kg restricted
• Drive: 4WD diesel, 45% gradeability, 360° continuous swing