Hoist Fitness HD3400 Dual Leg Extension/Leg Curl

Hoist Fitness HD3400 Dual Leg Extension/Leg Curl

$3,960.00 $4,400.00

Sku: HD-3400

Product variants

Estimated Delivery 10-14 Days

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Description

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215–240 lb Weight Stack

8 Back Pad Positions

Self-Aligning Roller Pad

557–580 lb Machine Weight

Hoist Fitness HD-3400 commercial dual leg extension and leg curl machine

Two Exercises. One Footprint.

Why dedicate floor space to two leg machines when one commercial station can handle both?

A dedicated leg extension and separate seated leg curl can quickly consume valuable space on a commercial strength floor. The Hoist Fitness HD-3400 Dual Leg Extension/Leg Curl combines both movements into one compact commercial selectorized strength machine, giving facilities a more efficient way to train the quadriceps and hamstrings without sacrificing proper positioning or exercise adjustability.

Multiple range-of-motion settings are built into both exercises, allowing users to establish an appropriate starting position before each set. Eight back pad adjustments accommodate different leg lengths and help align the knee with the machine's pivot point, an important detail when the same station needs to serve dozens of different users throughout the day.

As part of the HOIST HD Dual Series, the HD-3400 is designed specifically around space efficiency, intuitive adjustments, and commercial durability. It gives gyms the functionality of two lower-body isolation stations while preserving floor space for the rest of the strength circuit.

Designed for Different Bodies

The best dual-function machines do not simply save space. They make both exercises feel purpose-built.

Budget combination machines often treat one movement as the primary exercise and the second as an attachment. The HD-3400 is designed around both. Separate range-of-motion adjustments allow the exercise arm to be configured correctly for either leg extensions or seated leg curls, while the self-aligning roller pad helps maintain proper positioning as the user's leg moves through the exercise.

Resistance comes from a 215 lb standard weight stack, with a 240 lb heavy-stack configuration available for facilities that want additional training headroom. The machine weighs 557 lb in its standard configuration and 580 lb with the heavy stack, creating the stable, planted feel expected from commercial selectorized equipment. Integrated storage for a towel, bottle, and small personal items helps keep the surrounding floor organized.

Dual-function design: seated leg extension and leg curl in one station
Eight back pad positions: accommodates a broad range of leg lengths
Multiple ROM settings: independently configure each exercise starting position
Self-aligning roller pad: assists with consistent lower-leg positioning
215 or 240 lb stack: choose standard or heavy-stack resistance

Hoist HD-3400 leg extension leg curl back pad and roller adjustments

Hoist Fitness HD-3400 dual leg extension leg curl machine on a commercial gym floor

Make Every Square Foot Work Harder

Commercial lower-body training without dedicating twice the space.

Ideal for

Commercial gyms, hotels, corporate wellness centers, training studios, schools, physical therapy environments, and premium home gyms that need both quadriceps and hamstring isolation in a space-efficient selectorized station.

HOIST built the HD Dual Series specifically for facilities where floor space or equipment budgets make a full lineup of single-function machines impractical. Instead of simply shrinking the equipment, the HD-3400 combines two complementary lower-body movements while retaining the adjustment range needed to serve users of different sizes and experience levels.

Compared with purchasing separate entry-level leg extension and leg curl machines, the HD-3400 reduces equipment footprint and centralizes resistance into one commercial station while adding features such as eight back pad positions and a self-aligning roller. Browse more Hoist Fitness strength equipment to build a coordinated commercial circuit around the same brand and design language.

Includes free delivery. The Fitness Outlet is an authorized Hoist Fitness dealer, ensuring full manufacturer warranty support on every purchase.

Resources

Owner's Manual Color Customization Spec Sheet Product Warranty

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Warranty

Warranty data

COMMERCIAL WARRANTY

(RS, RPL, CF, CMJ, CL, HD, HS, HMG, KL, MotionCage & MotionCage Studio)

Applies to facilities that charge monthly membership dues and/or where equipment is used by more than 50 users per day.

10 Years – Body / Frame
5 Years – Structural Moving Parts
3 Years – Bearings, Bushings & Pulleys
1 Year – Finish/Paint, Cables, Upholstery & Accessories

FAQs

Frequently asked question

Is the Hoist HD3400 worth buying for a commercial gym?

Yes, the Hoist HD3400 is an excellent investment for commercial facilities. It combines two functions — leg extension and leg curl — in one compact machine, saving valuable floor space without sacrificing performance. Built with the same durable construction as the premium ROC-IT line, it's engineered for high-traffic use. For gyms balancing budget and quality, this dual-function design delivers strong value and a professional aesthetic.

What warranty comes with the Hoist HD3400 Dual Leg Extension/Leg Curl?

Hoist Fitness is known for offering strong warranty coverage on their HD Dual Series equipment. Specific warranty terms can vary by retailer and region, so we recommend confirming details at the time of purchase. Generally, Hoist covers structural frames, parts, and labor separately. Contact us directly before buying and we'll provide the most current and complete warranty information for this machine.

What muscle groups does the HD3400 target?

The Hoist HD3400 targets the quadriceps with the leg extension function and the hamstrings with the leg curl function. Together, these movements provide balanced lower-body strength training. This makes the machine ideal for athletic conditioning, rehabilitation, and general fitness programs where developing both the front and back of the thigh is a priority.

How much floor space does the Hoist HD3400 require?

The HD3400 is designed with space efficiency in mind, making it a smart choice for facilities where square footage is limited. As a dual-function station, it replaces two separate machines in a single footprint. For exact dimensions, refer to the product specification sheet or contact us — we're happy to help you plan your gym layout before purchasing.

Is the Hoist HD3400 suitable for both beginners and advanced users?

Yes, the HD3400 accommodates a wide range of fitness levels. Its adjustable settings allow users to modify resistance and positioning to match individual needs. Whether someone is new to strength training or an experienced athlete, the machine's intuitive design makes it easy to use safely and effectively, making it a versatile addition to any fitness facility.

Does the Hoist HD3400 require professional assembly?

Professional assembly is strongly recommended for the HD3400 to ensure safe operation and to protect your warranty. Commercial-grade machines like this involve precise component alignment and tensioning. Many retailers offer installation services, and Hoist-certified technicians can ensure everything is set up correctly. Proper assembly also extends the machine's lifespan and ensures users can train safely from day one.