Spirit Fitness SP-3521 Rotary Torso

Product Overview

The Spirit Fitness SP-3521 Rotary Torso is a commercial-grade strength machine designed to target the obliques and core through a controlled rotational movement. Built to stabilize both the upper and lower body, it ensures safe, biomechanically correct twisting while maximizing muscle engagement. With adjustable positioning, smooth resistance, and a space-efficient footprint, the SP-3521 delivers precise and effective core training for modern fitness environments.

PIN: SP-3521

Key Features

• Targeted Oblique & Core Activation
  Controlled rotary motion effectively engages obliques and deep core muscles for improved stability and strength.
• Adjustable Range of Motion
  Allows users to customize rotation limits based on flexibility, comfort, or training goals.
• Upper Body Stabilization System
  Chest pads secure the torso during movement, ensuring proper form and reducing strain on the spine.
• Lower Body Support with Thigh Pads & Footrests
  Large pads and foot supports stabilize the lower body for controlled, isolated rotation.
• Adjustable Seat Alignment
  Aligns the user’s torso with the machine’s pivot axis for optimal biomechanics.
• Smooth Cable-Driven Resistance
  Provides fluid, consistent resistance throughout the full rotational range.
• Integrated Storage Convenience
  Built-in top-cap storage keeps personal items like phones and water bottles within reach.
• Commercial-Grade Construction
  Heavy-duty steel frame and premium components ensure durability in high-traffic facilities.

Specifications

Performance

• Exercise Type: Rotary torso (core & oblique training)
• Resistance System: Selectorized weight stack
• Weight Stack: 90 kg standard / optional 110 kg (195–240 lb)
• Increment: 7.5 lb increments
• Movement: Cable-driven rotational system
• Target Muscles: Obliques, abdominals, and core stabilizers

Design & Build

• Frame: Heavy-duty commercial-grade steel
• Finish: Durable powder-coated surface
• Pads: Adjustable chest pads and large thigh supports
• Seat: Adjustable for proper user alignment
• Mechanics: Adjustable range-of-motion system
• Cushioning: High-density foam with premium upholstery
• Convenience Features: Storage tray, enclosed weight stack 

Dimensions & Capacity

• Dimensions (L × W × H): 1384 × 996 × 2010 mm (54" × 39" × 79")
• Machine Weight: 261 – 281 kg (575 – 620 lb)
• Weight Stack: 90 – 110 kg (195 – 240 lb)
• Maximum Selectable Load: Approx. 110 kg (243 lb)
• Footprint: Compact commercial design suitable for strength circuits