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What Is a Piggyback Forklift? The Ultimate Truck-Mounted Solution

Published time：

2026-06-15

Author：

Xin Hong Guang

Source：

Xin Hong Guang

Abstract

A "piggyback" forklift (also called a truck-mounted forklift, TMFL, or "Donkey") is a compact forklift designed to attach securely to the rear of a delivery truck or trailer . The vehicle drives to the delivery site, the forklift detaches and drives off under its own power to unload cargo, and then reattaches for the next stop . This eliminates the need for a separate forklift at the destination and allows a single driver to transport and unload heavy materials without a loading dock .Key FeaturesThese machines are built for versatility and include several distinct attributes:Compact & Lightweight – Designed to be light enough not to reduce the truck's payload capacity, with U-shaped chassis and foldable masts to minimize storage space .Integrated Reach Systems – Many models feature pantograph linkages, telescopic forks, or extendable booms to reach across truck beds and place loads precisely on the far side of a trailer .All-Terrain Capability – Equipped with three-wheel drive, la

A "piggyback" forklift (also called a truck-mounted forklift, TMFL, or "Donkey") is a compact forklift designed to attach securely to the rear of a delivery truck or trailer . The vehicle drives to the delivery site, the forklift detaches and drives off under its own power to unload cargo, and then reattaches for the next stop . This eliminates the need for a separate forklift at the destination and allows a single driver to transport and unload heavy materials without a loading dock .


Key Features

These machines are built for versatility and include several distinct attributes:


Compact & Lightweight – Designed to be light enough not to reduce the truck's payload capacity, with U-shaped chassis and foldable masts to minimize storage space .


Integrated Reach Systems – Many models feature pantograph linkages, telescopic forks, or extendable booms to reach across truck beds and place loads precisely on the far side of a trailer .


All-Terrain Capability – Equipped with three-wheel drive, large pneumatic tires, and rugged construction to handle mud, gravel, and slopes at construction sites or farms .


4-Way Steering (Select Models) – Some higher-capacity versions (e.g., PB55+ 4-Way) allow the forklift to drive sideways, ideal for maneuvering long loads in tight spaces .


Popular Models & Specifications

The market is led by manufacturers like Princeton (PiggyBack brand) and Moffett. Their models typically range from 3,300 to 8,000 lbs capacity .


Model Capacity Key Feature

Princeton PB36 3,600 lbs Static mast, retractable wheel arms; great for beverages & glass 

Princeton PB45 Turfmate 4,500 lbs Designed specifically for turf & landscaping deliveries 

Princeton PB55+ 5,500 lbs Trac-Loc traction control; ideal for brick & block 

Princeton PB80+ 8,000 lbs Highest capacity; for lumber & heavy construction 

Moffett M8 NX2 8,000 lbs Four-way steering, "Ground Assist" mounting tech 

Specialized Components:


Forks: Require ITA Class II or III "negative drop" (long neck) forks to fit the carriage geometry .


Load Stability: Use deployable stabilizer bars to prevent tip-over when handling heavy loads near or over the cab of the truck .


Who Uses Piggyback Forklifts?

These machines are indispensable in industries where deliveries go to unprepared sites :


Construction: Delivering lumber, roofing, and drywall directly into scaffolding or confined backyards.


Landscaping & Agriculture: Carrying sod, pavers, or feed across muddy fields without damaging the turf.


Recycling & Waste: Handling bulky bales of paper, plastic, or scrap metal in crowded yards.


Gas & LPG: Safely maneuvering cylinders with excellent all-round visibility for the operator.


Dockyards: Shuttling containers between the truck and storage areas.


The Bottom Line

A piggyback forklift essentially turns your delivery truck into a self-sufficient logistics hub. It saves labor costs (the driver is the operator), protects the cargo (no need for a third-party crane), and opens up deliveries to customers without loading docks. For businesses in construction, roofing, landscaping, or LPG delivery, this 2-in-1 machine is often a "gold standard" solution for the last-mile problem .


Note: If you frequently deliver to sites with no dock, this machine pays for itself by converting "difficult deliveries" into profitable revenue.

Keywords：
piggy back forklifts
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