Telescopic (straight) boom lifts are the productivity machines of the access industry: the boom extends in a straight line, reaches full height quickly, and gives the best horizontal outreach per meter of working height. In the popular 18-26 m class, three decisions determine whether the machine fits your work.
1. Working height and outreach - read both numbers
Manufacturers quote maximum working height (platform floor plus about 2 m of operator reach), but the number that decides real jobs is horizontal outreach at height. A 26 m machine like our GT-J24Li keeps useful outreach across most of its envelope, while a smaller 18 m machine such as the GT-J16 is lighter, cheaper to transport and fits tighter sites. Map your ten most common jobs before choosing - most fleets overbuy height they use twice a year.
2. Electric or diesel
Lithium-electric booms have crossed the threshold where they match diesel duty cycles for most rental and contractor work: a full shift on a charge, fast charging at lunch, zero emissions and far lower noise - which unlocks indoor, night-time and city-center work. Diesel still makes sense where charging is impossible or the machine runs double shifts continuously. If your jobs mix both, electric with a realistic charging plan wins on total cost.
3. Platform capacity and envelope restrictions
Two-person-plus-tools work needs a 250-300 kg platform rating; check whether the full capacity is available at full outreach or only in a restricted envelope. Also compare stowed length and weight against your trailer - a machine that needs a special low-loader costs you money on every move.
Specs that matter more than brochure height
- Gradeability (40%+ for real construction sites)
- Slew: continuous 360-degree rotation saves repositioning
- Platform size and entry type for daily usability
- Battery chemistry and warranty on electric models
- Parts support and manual language for your market
Browse our full telescopic boom lift range, or send us your height, outreach and power requirements through the contact form for a model recommendation with FOB pricing.