An extending boom forklift—more commonly known as a telehandler or telescopic forklift—is a lifting machine that combines the functionality of a traditional forklift with an extendable, articulating boom. Unlike a standard forklift with a fixed vertical mast, a telehandler uses a hydraulic telescopic boom that can extend both upward and outward, providing crane-like reach and versatility [1†L14-L16][7†L28-L31]. This unique capability allows it to lift, place, and retrieve loads in positions that would be impossible for a conventional forklift [9†L35-L39].
How an Extending Boom Forklift Works
The defining feature of an extending boom forklift is its hydraulic telescopic boom. This boom, typically made of high-strength steel sections that slide within one another, can be extended and retracted under hydraulic power [0†L12-L13][1†L21-L23]. The boom is usually pivotally mounted at the rear of the machine, allowing it to be raised and lowered while extending forward over the chassis [0†L7-L8][9†L10-L13].
Key operational aspects include:
Variable Reach and Height. By combining boom extension with boom angle, the operator can position the load at a wide range of heights and distances. Some telehandlers can reach up to 30 feet or more in horizontal extension and over 50 feet vertically [1†L29-L30][5†L19]. This flexibility is a core advantage over standard forklifts, which are limited to vertical lifting [1†L28-L29].
Automatic Boom Control. Advanced models feature integrated systems like the Vertical Loading System (VLS). In "fork mode," the boom automatically extends and retracts as the operator raises and lowers the arm, keeping the load in a vertical plane for smooth, controlled loading, similar to a traditional forklift [1†L5-L7][6†L22-L26].
Types of Extending Boom Forklifts
The term "extending boom forklift" can refer to two distinct categories of equipment:
1. Telehandlers (Dedicated Machines)
A telehandler is a purpose-built machine that is essentially a heavy-duty forklift with a large footprint and a telescoping boom instead of a vertical mast [7†L7][7†L29-L30]. They are typically powered by diesel engines and equipped with large rough-terrain tires and four-wheel drive, making them ideal for outdoor environments like construction sites, farms, and lumber yards [1†L17-L19][7†L31-L33].
The market for telehandlers is substantial and growing. The global telescopic boom forklift truck market was valued at $5.1 billion in 2025** and is projected to grow at a 9.5% CAGR to reach **$11.5 billion by 2034 [8†L5-L7]. Major manufacturers include JCB, Manitou, Caterpillar, Bobcat, and Merlo [8†L17-L18].
Example Model: Wacker Neuson TH625
The Wacker Neuson TH625 is a highly capable off-road telescopic forklift with an 18-foot-6-inch lifting height and a 5,511 lb payload [6†L27-L28]. It features a skid-steer attachment plate and auxiliary hydraulics, allowing it to handle more than just pallet forks [6†L11]. It offers three steering modes—front wheel, all wheel, and crab steering—for maximum maneuverability in tight spaces [6†L31-L32]. It also includes an integrated driver assistance system with fork and bucket modes [6†L20-L21].
2. Extending Jib Boom Attachments
For operations that already have a standard forklift, an extending jib boom attachment is a cost-effective alternative. This attachment slides onto the forklift's existing forks, transforming it into a machine with a telescopic boom function [2†L33-L34][3†L21-L22]. These attachments are available in a wide range of capacities and extension lengths.
Example Attachment: HERMEQ Low Profile Extending Jib
The HERMEQ jib attachment is a heavy-duty unit with a low profile and up to 8,800 lb capacity [11†L7][11†L17]. It offers 10 adjustable lifting positions with a maximum reach of 118 inches [11†L6-L7][11†L14]. It is designed for precision lifts in confined or high-reach zones and is compatible with most US forklifts [11†L16][11†L12-L14].
Extending Boom Forklift vs. Standard Forklift
The choice between a telehandler and a standard forklift depends on the specific application [7†L5-L6]. The table below summarizes the key differences.
Feature Extending Boom Forklift (Telehandler) Standard Forklift
Lifting Mechanism Telescoping boom extends vertically and horizontally [1†L16-L17] Fixed vertical mast [7†L10]
Primary Terrain Rough, uneven terrain (construction sites, farms) [7†L18] Flat, smooth surfaces (warehouses, docks) [7†L23]
Reach Can reach high and far (30+ ft horizontal, 50+ ft vertical) [1†L29-L30][5†L19] Limited vertical lift [5†L20]
Load Type Heavy, bulky loads at elevation (bricks, lumber, hay) [7†L20] Fast, repeatable pallet handling [7†L24]
Versatility High; supports many attachments (buckets, jibs, platforms) [7†L20-L21][8†L12-L14] Moderate; specialized pallet attachments [7†L25]
Cost Higher purchase/rental cost [7†L22] Lower cost [7†L26]
Common Applications and Industries
Extending boom forklifts are used across multiple industries:
Construction: Placing beams, bricks, pallets of materials at height [7†L36-L37]; lifting materials to second-story scaffolds [7†L35].
Agriculture: Lifting hay bales, feed bags, and moving manure [7†L37].
Warehousing: Lifting pallets and placing loads in high racks [8†L11].
Landscaping: Moving soil or rocks [7†L38].
Mining: Material handling in demanding environments [8†L14].
Rental and Logistics: Rental companies expanding fleets to meet demand for temporary projects [8†L30-L31].
Key Considerations When Choosing an Extending Boom Forklift
Capacity vs. Reach. The machine's lifting capacity decreases as the boom extends farther. Always check the load chart for the specific model and attachment.
Terrain. If operating on rough, muddy, or uneven ground, a telehandler with four-wheel drive and large tires is essential [1†L17-L19].
Attachments. Consider the range of attachments (e.g., buckets, winches, lifting hooks) available for the machine and the ease of switching between them [8†L12-L14][8†L34-L35].
Power Source. Evaluate the need for diesel, electric, or hybrid models, especially if working in urban areas with emission regulations [8†L25-L26][8†L55].
Safety Systems. Look for features like load moment indicators (LMIs) and stability control systems, which are crucial for preventing tipping and overloading [8†L32-L33].
The bottom line: An extending boom forklift, or telehandler, is a versatile machine that combines the lifting capability of a forklift with the reach of a crane. Its telescoping boom provides both vertical and horizontal reach, making it essential for construction, agriculture, and other outdoor applications where standard forklifts cannot operate. The global market is valued at $5.1 billion and is growing at 9.5% CAGR, driven by demand for versatility and infrastructure development. Key players include JCB, Manitou, Bobcat, and Caterpillar. When choosing between a telehandler and a standard forklift, consider terrain, lift height, load type, and space constraints. For existing forklift fleets, extending jib boom attachments offer a cost-effective way to gain telescopic capability.