hack squat

Load capacity varies by model. Common listings show capacities of 1,000 lbs, 1,200 lbs, 1,500 lbs, 1,800 lbs and up to 2,200 lbs.

Most models use heavy-duty steel (carbon steel or steel-alloy) with high-strength steel tubing; examples cite solid-steel construction and tube sizes such as 50×50 mm with 1.5 mm wall thickness.

Common features include multiple lockout/stopper positions, adjustable height or safety limiters (examples show 4 stopper positions or a 5-height limiter), and reinforced safety locking points to secure the sled.

Many listings specify linear-bearing guide systems rather than conventional rollers. Descriptions note linear bearings provide smoother, quieter sled motion compared with rolling bearings.

They commonly use thick, high-density shoulder and backrest cushions covered in anti-slip, wear-resistant leather to provide long-lasting comfort and reduce strain during workouts.

Most machines are plate-loaded for standard 2-inch (Olympic) plates; descriptions explicitly mention compatibility with 2" plates.

Sellers commonly ship the machines in multiple packages to prevent transit damage; some listings note two separate packages while others state three packages that may not arrive simultaneously.