ONYX Seated Hack Squat
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The ONYX Seated Hack Squat is a premium plate-loaded strength machine engineered for focused lower-body performance and quad-dominant squat training. Designed for commercial gyms and upscale training studios, its modern aesthetic and reinforced construction are matched with a high-precision dual-axis linear guide system for an exceptionally smooth, stable squat path.
Ergonomically optimized seat and backrest angles support natural hip-knee coordination during the squat movement. The forward-leaning back pad provides firm torso support while maintaining ideal hip flexion—minimizing glute compensation and intensifying quadriceps engagement. A clearly marked safety catch lever allows quick, effortless operation for secure training, while the oversized non-slip footplate supports multiple stances and heights for comfort, stability, and full range of motion.
- Plate-Loaded Seated Hack Squat: Designed for controlled squat training with strong lower-body strength development.
- High-Precision Linear Guide System: Dual-axis rails create a smooth, stable squat path—eliminating wobble or jamming.
- Ergonomic Pad Configuration: Forward-leaning backrest reduces glute compensation and increases quadriceps targeting.
- Oversized Non-Slip Footplate: Supports multiple stance widths and heights for comfort, stability, and full range of motion.
- Clearly Marked Safety Catch Lever: Prominent, easy-to-use lever improves usability and training safety.
- Stable Commercial Construction: Reinforced structural design built for heavy use in high-traffic gym environments.
- Seated Hack Squat: Primary squat pattern designed to emphasize quads with stable body positioning.
- Quad-Dominant Training: Forward-leaning support angle increases knee drive and quadriceps activation.
- Lower-Body Strength: Plate-loaded progression supports heavy training and progressive overload.
- Hypertrophy Programming: Ideal for controlled volume work to build quad size, shape, and endurance.
- Stance Variation: Oversized footplate supports multiple foot positions to adjust emphasis and comfort.
- Dimensions (L × W × H): 87.7 × 58.9 × 49.2 in
- Total Weight: 500 lb
- Resistance Type: Plate-loaded
- Target Muscle Groups: Quadriceps (primary), glutes/hamstrings (secondary)
- Intended Use: Commercial gyms and high-traffic training facilities
- Linear guide system delivers smoother, more stable squats for higher-quality reps
- Forward-leaning pad design increases quad emphasis while reducing glute compensation
- Oversized footplate supports stance variety for user comfort and precise targeting
- Commercial-grade build and safety catch lever designed for confident heavy training