The Primal Performance Series Plate Loaded Standing Hamstring Curl is a plate loaded, single leg hamstring machine for commercial gyms, PT studios and strength facilities. You stand braced against a torso pad and curl one leg at a time against Olympic plates. It needs 1450 × 1330 mm of floor space, stands 1320 mm tall and weighs 155 kg.

Training standing and one leg at a time lets the hamstring work hard while the hips stay locked in place, and the resistance curve is shaped so the hardest part of the rep sits in the middle, where the muscle is strongest.

Who it is for

• Commercial gyms adding a dedicated hamstring station to a plate loaded leg zone
• PT studios coaching single leg strength and fixing left to right imbalances
• Strength and conditioning facilities building hamstring capacity in sprint and field sport athletes
• Rehab and return to play programs that need controlled, one side at a time knee flexion

Key features

• Gas strut footplate height adjustment so each user can line the knee up with the lever pivot in seconds
• Adjustable ankle roller in high density foam that moves to suit short and tall users
• Torso support pad with angled bracing handles that hold the hips and trunk still, so only the knee bends
• Shaped resistance curve: lighter at the start to stop users jerking the first part of the rep, building to the mid range, then easing off for a hard squeeze at the top
• Unilateral standing design that trains each leg separately
• Loads standard Olympic plates, so you can progress in small jumps with the plates you already own

Muscles worked and training uses

Knee flexion is the main job of the hamstrings, and doing it standing on one leg keeps the pelvis still so the load goes where you want it.

• Primary: hamstrings (biceps femoris, semitendinosus, semimembranosus)
• Secondary: calves (gastrocnemius) and the glutes as stabilisers
• Single leg strength work to find and close gaps between the left and right side
• Hamstring injury prevention blocks for running, football and court sport athletes
• Controlled higher rep finishers after deadlifts or Romanian deadlifts

Specifications

Frequently asked questions

How much room does the standing hamstring curl need?

It measures 1450 mm long, 1330 mm wide and 1320 mm high. Leave about 600 mm clear on each side for getting on and off and for loading plates, which means planning a zone of roughly 2.7 × 2.5 m.

How is it loaded?

It is plate loaded. Olympic 50 mm plates go on the lever, so you can start light for rehab clients and keep adding weight for strong athletes. Plates are sold separately.

Is ceiling height a concern?

No. The frame is 1320 mm tall and the user stands upright while the lower leg moves behind them, so a normal 2.4 m ceiling is plenty.

What warranty is included?

Primal Strength covers it with a full commercial use warranty: 5 years on the frame, 3 years on parts, and 1 year on pads, cables, pulleys and wearables, with 1 year of labour.

Can you deliver and install it in Australia?

Yes. We send Australia-wide from our Melbourne warehouse, and most metro deliveries land 1 to 7 business days after dispatch. The machine itself weighs 155 kg, so some regional addresses need a freight quote. Send us your details through the Ask about this machine form on this page and we will price delivery and installation.

Why choose a standing curl over a lying or seated curl?

A standing curl works one leg at a time with the hip fixed, which makes side to side differences obvious and easy to train. Many gyms run it alongside a seated or lying curl so members get both bilateral and single leg options.

Building a plate loaded leg zone? Ask our team about pairing this curl with the Primal Power Squat and 70 Degree Leg Press.