Hoist HDG-3400 Dual Leg Extension/Leg Curl – Heavy Stack at FitnessZone

The Hoist HDG-3400 Dual Leg Extension/Leg Curl with Heavy Stack is a premium selectorized strength machine designed to train both the quadriceps and hamstrings from one compact station. Built for commercial fitness centers, apartment gyms, hotels, corporate wellness facilities, personal training studios, schools, rehabilitation environments, and serious home gyms, the HDG-3400 combines two essential lower-body exercises with smooth biomechanics, durable construction, and space-efficient design.

Part of the Hoist HD Dual Series, the HDG-3400 is engineered for facilities that need to maximize floor space without sacrificing training quality. Its dual-function design allows users to perform both leg extensions and leg curls on one machine, reducing the need for separate strength stations while still delivering a dedicated lower-body training experience.

Buy With Confidence From FitnessZone

• Online Since 1996
• Authorized Hoist Fitness Dealer
• Local Service & Assembly Available
• Competitive Pricing
• Service After the Sale
• A+ BBB Rating
• Top-Rated Customer Reviews
• Manufacturer Warranty Support
• Nationwide Shipping Available

Dual-Function Leg Extension and Leg Curl Machine

The Hoist HDG-3400 is designed to efficiently target two major lower-body muscle groups:

• Leg Extension: Focuses on the quadriceps
• Leg Curl: Targets the hamstrings

Combining both exercises in one machine makes the HDG-3400 a strong choice for facilities that want to create a complete strength-training circuit while conserving valuable floor space.

The machine includes multiple range-of-motion adjustments for both exercises, allowing users to select comfortable starting positions based on flexibility, training goals, and individual body mechanics.

Heavy 240 lb Weight Stack

The HDG heavy-stack configuration includes a 240 lb weight stack, giving experienced users and stronger athletes additional resistance compared with lighter stack options.

This makes the Hoist HDG-3400 especially well suited for:

• Commercial gyms
• Athletic performance facilities
• Strength-training studios
• Corporate fitness centers
• Schools and universities
• Hotels and resorts
• Apartment fitness rooms
• Serious home gyms

Eight Back Pad Adjustments

The Hoist HDG-3400 features eight back pad positions to help accommodate users with different leg lengths and body sizes.

Proper adjustment helps users maintain a more comfortable and stable training position during both leg extensions and leg curls.

Self-Aligning Roller Pad

A self-aligning roller pad automatically adjusts during movement to help reduce unnecessary stress around the ankle joint.

This design supports a more natural range of motion and can improve comfort for users performing repeated lower-body training sessions.

Superior Biomechanics and User-Friendly Adjustments

The Hoist HD Dual Series is built around intuitive adjustments and carefully designed biomechanics.

The HDG-3400 includes a ratcheting adjustment system that makes it quick and easy to change positions between users. This is especially useful in commercial environments where multiple people may use the machine throughout the day.

Comfort and Support

Head Support and Oversized Handles

Integrated head support and oversized handles help users maintain a secure position during exercise.

These features can improve stability during higher-resistance sets and provide a more comfortable training experience.

Adjustable Back Pad

The multi-position back pad helps users achieve better alignment based on individual leg length and body size.

Durable Commercial Construction

The Hoist HDG-3400 is built with an oval-tube steel frame designed for strength, rigidity, and long-term durability.

Large-radius bends add both visual appeal and structural strength, helping the machine withstand repeated use in demanding fitness environments.

Silent Steel Weight Stack

The Silent Steel® weight stack system is designed to help reduce noise during exercise.

This can be especially valuable in:

• Hotels
• Apartment fitness centers
• Corporate gyms
• Rehabilitation clinics
• Boutique fitness studios
• Home gyms

where quieter equipment operation is important.

Integrated Scuff Guards and Rubber Foot Protectors

The HDG-3400 includes integrated protection for both the machine and surrounding flooring.

Scuff guards help protect the frame from wear, while rubber foot protectors help reduce direct contact with flooring surfaces.

QR Code Workout Instructions

A scannable QR code provides mobile access to exercise instructions, allowing users to view workout guidance directly from a smartphone.

This feature can be especially useful in unsupervised commercial fitness environments where members may need additional instruction.

Integrated Storage

The machine includes an integrated towel and bottle holder with accessory tray, helping users keep personal items organized and reducing clutter around the workout area.

Anchoring Capability

Hoist HD products can be permanently anchored in place to help maximize stability and user safety in commercial facilities.

Hoist HDG-3400 Features

• Dual leg extension and leg curl station
• Heavy 240 lb weight stack
• Eight back pad adjustment positions
• Multiple range-of-motion settings
• Self-aligning roller pad
• Ratcheting adjustment system
• Head support
• Oversized handles
• Oval-tube steel frame
• Large-radius frame bends
• Silent Steel weight stack
• Integrated scuff guards
• Rubber foot protectors
• QR code exercise instructions
• Towel and bottle holder
• Accessory storage tray
• Commercial anchoring capability
• Space-saving dual-function design

Hoist HDG-3400 Specifications

Product Width:
51" / 130 cm

Product Height:
55" / 140 cm

Product Length:
57" / 145 cm

Machine Weight:
566 lbs / 257 kg

Weight Stack:
240 lbs / 109 kg Heavy Stack

Who Is the Hoist HDG-3400 Best For?

The Hoist HDG-3400 Dual Leg Extension/Leg Curl is ideal for facilities and users who want two essential lower-body exercises in one commercial-grade machine.

It is especially well suited for:

• Commercial fitness centers
• Health clubs
• Apartment and condominium gyms
• Hotels and resorts
• Corporate wellness facilities
• Personal training studios
• Schools and universities
• Rehabilitation and wellness facilities
• Home gyms with dedicated strength-training space

Hoist HDG-3400 Frequently Asked Questions

What exercises can you perform on the Hoist HDG-3400?

The machine allows users to perform both leg extensions and leg curls.

What muscles does the Hoist HDG-3400 work?

Leg extensions primarily target the quadriceps, while leg curls primarily target the hamstrings.

How heavy is the weight stack?

The HDG version includes a 240 lb heavy weight stack.

Is the Hoist HDG-3400 commercial grade?

Yes. The Hoist HD Dual Series is designed for demanding fitness environments and features heavy-duty construction, commercial-style adjustments, and durable components.

Does the machine adjust for different users?

Yes. It includes eight back pad positions, multiple range-of-motion adjustments, and a ratcheting adjustment system to accommodate different users.

What is the self-aligning roller pad?

The self-aligning roller pad automatically adjusts during movement to help reduce unnecessary stress at the ankle joint.

Can the Hoist HDG-3400 be anchored to the floor?

Yes. Hoist HD products can be permanently anchored to help improve stability and safety in commercial settings.

Order the Hoist HDG-3400 from FitnessZone

The Hoist HDG-3400 Dual Leg Extension/Leg Curl with Heavy Stack delivers space-saving versatility, commercial-grade durability, smooth biomechanics, and a heavier 240 lb resistance stack for demanding lower-body strength training.

Need A Better Price? Call 1-800-875-9145, chat with FitnessZone, or email sales@fitnesszone.com.

We Offer Military, Law Enforcement & First Responder Discounts!

FitnessZone Is an Authorized Hoist Fitness Dealer Nationwide!

Order your Hoist HDG-3400 Dual Leg Extension/Leg Curl – Heavy Stack from FitnessZone today.