Primal Performance Series ISO Hack Squat

The Primal Performance Series ISO Hack Squat is a dual use, plate loaded machine that works as a back supported hack squat facing out and a V power squat facing in, built for commercial gyms, PT studios and sports facilities. It covers 1810 × 1200 mm of floor, stands 1610 mm tall and weighs 190 kg.

Two squat patterns from one footprint means less floor space and more choice for members, and the ISO lever arms move on a natural arc rather than a fixed rail.

Who it is for

• Commercial gyms wanting two leg machines in the space of one
• Sports and S&C facilities training quads, glutes and hamstrings with heavy loads
• PT studios coaching squats without the balance demands of a barbell
• Lifters with lower back concerns who need a supported squat option

Key features

• Two exercises in one: a back supported hack squat facing away from the machine and a V power squat facing into it
• ISO lever arms that move through a natural converging arc for strong muscle contraction
• Angled, non slip diamond cut foot plate that reduces load on the lower back under heavy weights
• Single or double leg use for split and unilateral hack squats
• Extended weight horns: rated to a 300 kg weight capacity with 370 mm bullhorns
• Heavy 9 gauge (4 mm) steel frame with rubber and aluminium capped handles
• Unloaded starting weight of 50 kg

Muscles worked and training uses

Facing out, the hack squat keeps the torso upright and puts the quads first. Facing in, the V squat lets the hips travel back for more glute and hamstring work.

• Primary: quadriceps and glutes
• Secondary: hamstrings, adductors and calves
• Quad focused hack squats with a narrow stance and deep knee bend
• Glute and hamstring biased V squats facing the machine
• Single leg hack squats to even out strength between legs
• Heavy lower body strength work without a rack or spotter

Specifications

Frequently asked questions

What floor space does the ISO Hack Squat need?

It measures 1810 mm long, 1200 mm wide and 1610 mm high. Leave about 600 mm clear on every side for stepping in, turning around between exercises and loading plates, which is a zone of about 3.0 × 2.4 m.

How is it loaded and how much can it take?

It takes 50 mm Olympic plates, which are not included, on extended horns with 370 mm bullhorns, and it is rated to a 300 kg weight capacity. The machine starts at 50 kg unloaded.

What ceiling height is needed?

The frame is 1610 mm tall and the user stands up to full height at the top of each rep, with the shoulders under the pads. A standard 2.4 m ceiling suits most users, and we can check fit for very tall lifters.

What warranty is included?

Primal Strength states a full commercial use warranty of 5 years on the frame, 3 years on parts, and 1 year on cables, pulleys, bearings and wearables, plus 1 year of labour.

Do you deliver and install in Australia?

Yes. We ship Australia-wide from our Melbourne warehouse, with most metro deliveries arriving 1 to 7 business days after dispatch. It weighs 235 kg packed in a 2100 × 1000 × 890 mm crate, so some regional addresses need a freight quote. Use the Ask about this machine form on this page and we will quote delivery and installation.

What is the difference between the hack squat and V squat positions?

In the hack squat you face away with your back on the pad, which keeps you upright and targets the quads. In the V squat you face the machine, the hips sit back further, and the glutes and hamstrings do more of the work.

Pair the ISO Hack Squat with the Primal Pendulum Squat and 45 Degree Leg Press for a heavy duty leg floor.