Description
215 to 240 lb Weight stack (standard/heavy)
8 Back pad adjustments
Self-Aligning Roller pad
566 to 591 lb Machine weight
Hoist Fitness HD-3400 Dual Leg Extension Leg Curl machine

The problem with limited floor space

Two leg machines, two footprints, two invoices. The HD-3400 needs only one of each.

Fitness facilities working with tight space or a tight budget usually have to choose between a leg extension machine and a leg curl machine, or find room and budget for both. The Hoist Fitness HD-3400 Dual Leg Extension/Leg Curl removes that choice. It is part of the expanded HOIST HD Dual Series, a line of 9 dual or multi-function stations built to deliver a full commercial strength circuit in a fraction of the floor space a single-exercise lineup would require.

The HD-3400 carries the same aesthetic distinction and durable construction as the popular Hoist ROC-IT line, so it matches an existing Hoist circuit or stands on its own as a compact, high-value leg station for gyms, hotels, corporate fitness centers, physical therapy clinics, and home gyms tight on space.

Multiple range-of-motion adjustments support both the leg extension and leg curl movement patterns, so one machine covers both exercises properly instead of compromising on either.

A decade-long commercial best seller

Quality components and intuitive adjustments in a machine dealers keep reordering.

The HD-3400 has held a reputation as one of the longest-running best sellers in its category, with at least one longtime Hoist dealer noting it has remained a top seller for over 10 years. Eight back pad adjustments accommodate varying leg lengths, and a self-aligning roller pad automatically adjusts position to reduce potential stress on the ankle joint, a detail that matters when a machine sees dozens of different users a day.

The standard configuration ships with a 215 lb weight stack, with a heavy stack option available at 240 lbs for facilities that need more resistance headroom. An integrated towel and bottle holder with accessory tray keeps personal items organized and off the gym floor. Entry-level or single-function leg machines typically skip the self-aligning roller pad, offer far fewer back pad positions, and cannot match the dual-exercise footprint efficiency built into the HD-3400.

  • Combines leg extension and leg curl in one dual station
  • Eight back pad adjustments for varying leg lengths
  • Self-aligning roller pad reduces stress on the ankle joint
  • Standard 215 lb stack with a 240 lb heavy stack option
  • Same aesthetic and construction as the Hoist ROC-IT line
Close-up of Hoist HD-3400 back pad and roller pad adjustments
Hoist HD-3400 Dual Leg Extension Leg Curl in a commercial facility

Who it is for

Built for facilities where space, budget, or both are at a premium.

Commercial gyms, hotels, corporate fitness centers, physical therapy clinics, and space-conscious home gyms all get the same benefit from the HD-3400: a state-of-the-art leg station without the floor space cost of two separate machines. Its multiple range-of-motion adjustments and self-aligning roller pad make it equally suitable for a high-traffic commercial floor or a serious home gym setup.

Cheaper single-function leg extension or leg curl machines can look like a lower upfront cost, but buying two of them takes up roughly twice the floor space, usually skips the self-aligning roller pad, and rarely matches the adjustment range built into a purpose-designed dual station like the HD-3400.

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

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.

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