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Patented Pending Articulating Functional Trainer Arms

The patent-pending Mutant Arms™ are a major leap forward for our articulating functional trainer arms. Two attachment points give you three cable ratios: use the 2:1 end for smooth, finer-increment work, the 1:1 end for true pound-for-pound resistance so the weight you load is the weight you feel, or connect to both ends at once for a combined 1:1.5 ratio – one and a half times the weight on the stack for short-range, heavy movements. They articulate both horizontally and vertically to set the perfect starting position for any exercise – go wide for chest flys and cable crossovers, bring them together for lat pulldowns and seated rows, or angle them up and down for presses, pulls, and everything in between. A detachable counterbalance keeps the cable tracking smooth on horizontal and bottom-up pulls, then lifts off when you don’t need it.

🇺🇸 US Patent Pending — SN 18/882,973 · Filed September 9, 2024
🇺🇸 US Patent Pending — SN 19/544,905 · Filed February 19, 2026

Smith Machine Cable Integration

A standout feature of the MAXUM X3 is the ability to connect the functional trainer’s cable system directly to the Smith machine bar. This lets you use the weight stacks instead of loading plates, making resistance changes quick and convenient. With this setup, you can perform a wide range of movements, including pressing exercises that drive upward and pulling exercises that move downward, expanding the variety of training options beyond a traditional Smith machine.

MAXUM X3 Smith Machine Functional Trainer Squat Rack Home Gym

MAXUM X3 Smith Machine Functional Trainer Squat Rack Home Gym

Counterbalanced & Low Smith Machine

The counterbalance helps to offset the weight of the barbell, making it easier to perform certain exercises with proper form and technique.

The flatfoot rack design allows the smith machine barbell to go as low as possible which is great for exercises like hip thrusts. Other smith machines integrated into bolt down racks cannot go as low due to the lower cross member.

Stainless Steel Front Uprights

The X3 comes standard with stainless steel 3×3 11 gauge front uprights to keep your rack always looking new. Other brands are powder coated or chrome plated which is not as durable. Some of the most well respected power rack brands offer 3×3 11 gauge stainless uprights as a premium option for a reason so if someone says stainless steel uprights are inferior, then they don’t know squat (pun intended).

MAXUM X3 Smith Machine Functional Trainer Squat Rack Home Gym

MAXUM X3 Smith Machine Functional Trainer Squat Rack Home Gym

Standard Commercial Rack Tubing

The frame is built with 3×3″ 11 gauge steel and has 1″ holes throughout making it compatible with rack attachments from other brands. It also features 2″ hole spacing which allows for the precise placements of your J-hooks and safeties for those big lifts.

Dual 220 lb Weight Stacks

The included dual 220 lb weight stacks at 10 lb increments ensures you will have the weight you need for all your functional trainer exercises. And for those that need a little more, the included weight plate horns allow you to add weight plates to the stack.

MAXUM X3 Smith Machine Functional Trainer Squat Rack Home Gym

MAXUM X3 Smith Machine Functional Trainer Squat Rack Home Gym

Optional Quick Attach and Release Leg Press Plate

The optional quick attach and release leg press plates conveniently converts your smith machine into a leg press machine.

Strap Safety Arms and UHMW Sandwich J-hooks

The unique and hefty optional strap safety arms gives you your bar a soft landing when you need it. And the included J-hooks use UHMW sandwiched between two thick steel plates to protect your bars finish and knurl.

Strap Safety Arms and UHMW Sandwich J-hooks

DETAILS

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MAXUM X3 – Smith Machine Functional Trainer Squat Rack Home Gym

Smith Machine • Functional Trainer • Squat Rack • Lat Pulldown/Row • Pull-Up

The MAXUM X3 is the ultimate all-in-one strength system—the one gym to rule them all™. Built for lifters who demand maximum versatility, it combines a Smith machine, functional trainer, squat rack, and cable stations into one powerhouse unit. With patent pending Mutant Arms™ that articulate in every direction and a true 1:1 attachment point, dual 220 lb weight stacks, and heavy-duty steel construction, the X3 is engineered to replace an entire gym floor with one machine.

Why the MAXUM X3 Stands Out

Patent pending Mutant Arms™ articulate in every direction with a true 1:1 attachment point.
Dual 220 lb weight stacks with 10 lb increments for smooth progression.
Plate-loading horns let you increase resistance beyond the built-in stacks.
Beefy Smith machine with 30 mm guide rods and smooth linear bearings for guided barbell training.
Quick-release footplate for leg press training.
3×3″ 11-gauge steel frame with stainless steel uprights and 1″ holes for durability and broad attachment compatibility.
Nylon-coated aircraft-grade cables, aluminum pulleys, and precision bearings provide exceptionally smooth, consistent cable motion.
Commercial-grade components ensure lasting performance under heavy use.

Training Benefits

Perform presses, squats, rows, pulldowns, and countless cable exercises.
Train safely with the guided support of the Smith machine.
Replace multiple machines with one complete system.
Built to withstand years of demanding training.

Why Buy from MAXUM

Free shipping in the continental US
Lifetime warranty
20% bundle discount on accessories when purchased with the machine
5% Discount for first responders, frontline workers, and school teachers

The MAXUM X3 is the ultimate all-in-one strength system for lifters who want it all in one machine.

MAXUMIZE your training—order your X3 today.

FUNCTIONS

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Smith machine
Functional trainer – dual 220 lb weight stacks in 10 lb increments and plate loaded
Squat rack
Lat pulldown and low row
Pull-up station
Dip station

FEATURES

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Patent pending articulating functional trainer arms
Aluminum pulley wheels
3 x 3″ 11 gauge steel
Standard 1″ hole diameter
1000 lb load capacity
Dual 100 kg (220 lbs) solid refined steel weight stacks that allow for more weight via weight plates
Dual front and rear squat rack
Height adjustable functional trainer at a 2:1 ratio
Counter balanced smith machine (can be removed)
8 weight plate storage pegs
High quality pulley wheels and vertical smith machine bearings
Bolt on pull-up handles
Resistance band support

INCLUDED ATTACHMENTS

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Sandwich J-hooks – UHMW
Dip station
Lat pulldown knee hold (center and side)
Low row foot plate (center and side)
Landmine
Double D row handle
Center attachment adaptor
Single pulley
Strap handles
Lat bar
Straight bar
Landmine T-bar
Tricep rope
Barbell pad
Quick release barbell collars

SPECIFICATIONS

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Steel specs	3 x 3" 11 gauge
Hole size	1"
Hole spacing	2"
Weight capacity	1000 lb
Height (highest point):	82.5" & 88.5"
Rack width:	49"
Floor depth:	61.5"
Height (pull-up bar):	77.5" & 83.5"
Arm top position (2:1 cable end):	85.5" & 91.5"
Arm top position (1:1 cable end):	80.25" & 86.25"
Arms wide out width:	100.5"
Smith machine barbell length:	83"
Smith machine barbell height (lowest):	10"
Smith machine barbell height (highest):	70.5" & 76.5"
Smith machine barbell weight:	48 lb
Smith machine barbell weight (counter balanced):	8.6 lb
Packed crate dimensions (82.5"):	81" x 34" x 21"
Packed crate weight (82.5"):	1448 lb
Packed crate dimensions (88.5"):	86" x 34" x 21"
Packed crate weight (88.5"):	1479 lb

Blog

Blog

Latest Blog

Smith Machine Hip Thrust: Setup, Form and Bar Height

MAXUM Mutant Arms™: The Articulating Cable Arm Upgrade for Your Home Gym