Admin August 4, 2022

Forklifts are an important tool in many industries, especially at construction sites, warehouses, and dockyards. This is because these and other work locations often have heavy loads that need a powerful forklift truck to lift and move them.

Forklifts, while not overly large, can lift loads that weigh in the thousands of pounds high in the air. However, there are different types and styles of forklifts available, so how can a business choose the right forklift?

One important element to consider when selecting a forklift for your job site is the forklift mast.

What Is a Forklift Mast?

Simply put, the forklift mast, also known as the upright, is the part of the machine that does the work. It’s the mechanical structure on the front of the lift truck that allows it to raise loads to necessary heights. A forklift mast lifts by hydraulic displacement and lowers using the force of gravity.

The mast has multiple sections that work together to lift. Nested rails allow the mast to extend and lower. The carriage is attached to the inner rails and chains, which are attached to both the carriage and the mast at anchors, help raise and lower it. The forks, along with other attachments, ride the carriage and are used for material handling.

Considerations When Choosing a Forklift Mast

Free Lift

One factor to consider when choosing a forklift mast is free lift, especially in a location with low overhead clearance. Free lift is how high a forklift operator can raise the forks without the mast height changing. While free lift is a huge benefit if you’re working in confined spaces, the lift mechanism can limit visibility if it is located in the center of the mast.

Lowered Height

Another factor that affects forklift mast selection is the lowered height, also known as the collapsed height. The lowered height is the distance from the floor to the top of the mast when the mast is lowered.

The lowered height is especially important to consider if your forklift will be traveling through confined spaces like doorways.

Extended height

At the other end of the spectrum is the extended height of a mast. This is the distance from the floor to the top of the mast when it is fully extended.

Lift Height

Lift height isn’t the same as extended height because lift height (also known as maximum fork height, or MFH) is measured from the floor to the forks, not the top of the mast or load backrest. Typically, the recommended lift height is six inches above your highest shelf so that the forklift has room to maneuver.

Common Types of Forklift Masts

Single-Stage (aka Simplex) Mast

The single-stage mast, also known as a simplex mast, does not have free lift and only has one channel. The mast must extend higher to stack loads, which is why this is seen outdoors where overhead clearance isn’t a concern (i.e., no limited lifting height).

Two-Stage (aka Duplex) Mast

The two-stage mast, also known as a duplex mast, has free lift available and is often used for stacking and double stacking for indoor applications with limited overhead.

Two-stage mast forklifts have good visibility since there aren’t as many mast sections impeding the driver’s view. There’s a hydraulic cylinder in the center of the mast to push loads upward. Loads can rise (to an extent) while the mast is stationary.

Three-Stage (aka Triplex) Mast

The most common and versatile forklift mast is the three-stage mast, or triplex mast. The outer stage on this mast doesn’t move. It has two sliding rails and an angled stationary rail. The triple-stage mast has free lift and can reach greater heights, making it good for warehouse applications.

Four Stage (aka Quad) Mast

The four-stage mast, or quad mast, has the highest reach of all. This mast has four sets of moving rails and chains and is much more complex than other masts. It’s also important to note that the four-stage mast may have restricted visibility and require special training to drive.

The mast has multiple sections that work together to lift. Nested rails allow the mast to extend and lower. The carriage is attached to the inner rails and chains, which are attached to both the carriage and the mast at anchors, help raise and lower it. The forks, along with other attachments, ride the carriage and are used for material handling.

Conclusion

The whole fun of home renovation is being able to customize every element of design from start to finish. Most of the high-quality brands featured on our website allow the buyer to choose between a wide variety of customization options from the materials to the color.

If you’re going to invest money into a significant folding door renovation, then wouldn’t you rather be able to design a door system from the ground-up? Not only will you get a higher quality door, but you’ll end up with a product that you can take pride in every day you walk through it.

FAQ's

A standard 33-pound LP fuel tank for a forklift (holds 8 gallons of propane), which is the size of most forklifts, will last for around 8 hours. – With typical usage of a forklift, 1 gallon of propane = 1 hour of power
No. We currently do not offer trailer-mounted or towable boom lift models for rent.
No. The listed rental price does not include pickup and delivery charges or required taxes and service fees. The Damage Waiver is also additional. The rental prices listed are samples based on major metro areas. We provide service in more than 500 metro areas, so the final rental price will vary due to availability and market pricing. Please call or email us for an exact quote.

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