Strength equipment

Smith machines

Guided bar paths, counterbalances, stops and the difference between a Smith and an all-in-one trainer.

By Mahmoud3 min read

A Smith machine guides a bar along fixed rails. The rail angle, unloaded resistance, lowest usable position and safety stops determine how it works for your exercises. Cables and free-barbell fittings are separate functions, even when sold on the same frame.

Useful termsCounterbalanced Smith bar Smith starting resistance

EQUIPMENT EXAMPLEATX Compact Smith Machine 500
A vertical Smith machine with linear bearings and a 198 cm frame height, intended for rooms with limited ceiling clearance. The Australian package includes Olympic sleeves; optional J-hooks and spotter arms extend it to free-barbell work.
Photo: Sam’s Fitness / ATX. Base Smith machine shown. Bench, plates and optional free-weight fittings are separate purchases.

A guided bar is its own mechanism

Rotating the Smith bar engages hooks along the uprights. Adjustable stops beneath the bar provide a lower travel limit when correctly set. The bar can travel vertically or along an inclined path, depending on the machine. Body-Solid’s Series 7 is an example of a seven-degree design; ATX’s Compact Smith 500 uses a vertical path.

Your bench position and the direction you face should follow the manufacturer’s setup for that machine and exercise. A fixed rail does not adjust itself to the path of a free bar. Before buying, try the full movement, including reaching and turning the bar to rack it.

Sources: Body-Solid Series 7 mechanism and current model · ATX Compact Smith 500 Australian package

Three specifications that are often confused

The mass of the bar assembly, its effective starting resistance and its maximum permitted load are different quantities. A counterbalance offsets some of the moving mass. It does not make the unloaded bar equivalent to a standard 20 kg Olympic bar, and the word “counterbalanced” does not tell you its exact starting resistance.

A claimed Smith capacity also does not establish the front rack’s rating or the cable station’s rating. Record each separately. When comparing a local listing with a manufacturer’s international page, check the model suffix and revision: similar names can cover different bars, dimensions and accessories.

Specification	Question to ask
Starting resistance	What must the user lift with no plates fitted?
Loading limit	Does the limit refer to added plates or the full moving assembly?
Travel and stops	Can the bar reach the required bottom position with a usable stop below it?

Sources: Body-Solid Series 7 mechanism and current model · Force USA G15 — counterbalance and package distinctions

Standalone Smith, Smith/rack or complete trainer

A standalone Smith suits someone who already has other lifting equipment. A Smith/rack combination adds hooks and safeties for a separate barbell. An all-in-one trainer adds one or more cable stations, powered by loose plates or fixed weight stacks. The presence of a Smith bar does not tell you how the cables are loaded.

The ATX 500 base machine keeps the purchase relatively simple; optional free-weight fittings extend its use. Southside’s Revolution R5 combines a Smith, front rack and cable stacks. A plate-loaded combined machine may cost less initially, but you must also buy enough compatible plates for the exercises you want to set up.

Sources: ATX Compact Smith 500 Australian package · Force USA G15 — counterbalance and package distinctions · Revolution R5 Australian listing

Plan the usable space

Measure overall width including the Smith sleeves, then allow room to handle plates at each end. Test whether the chosen bench can roll into the frame and reach the intended pressing position without its feet striking a crossmember. Check overhead clearance, bar travel and clearance around the lowest hooks.

Ask for a package list identifying collars, safeties, storage pins, cable handles and the bench. Photograph the model plate after delivery and retain the manual. For long-term service, ask the Australian seller about replacement bearings or bushes, hooks and counterbalance parts; a frame warranty alone does not answer those questions.

Sources: Body-Solid Series 7 mechanism and current model · ATX Compact Smith 500 Australian package · Revolution R5 Australian listing

Models mentioned in this article

AUSTRALIAN LISTING

ATX Compact Smith Machine 500

Useful when you already have a bench and plates and want a separate guided bar for presses, squats and rows. Its shallow frame can fit beside an existing strength setup.

Specifications & buying options