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Rotary Torso

Keystone | V-KEY-SL-55

Rotary Torso

The Keystone Rotary Torso is a commercial rotary torso machine designed to build core strength and rotational power in gyms and fitness centers. Its controlled torso rotation and precise body positioning geometry support proper movement patterns across a wide range of users.
Constructed with moisture-resistant cushioning and a welded steel frame, this strength training machine delivers durability, comfort, and reliable performance in high-traffic commercial fitness environments.

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Supports Proper Movement

A total of 11 starting positions accommodate the range of motion for users of all sizes, an easy-access kneeling design optimizes alignment and support, and rotation follows the body’s natural core engagement path for smooth, effective reps.
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Stability During Every Rep

Cushioned supports stabilize the user’s lower body through each rep, while ergonomically located handles stabilize the torso so users can more effectively isolate their obliques.
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Adjustment Points Made Easy

Make it easy for users to get set up and started quick with clearly marked adjustments.
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Comfort & Moisture-Resistance

Ergonomic cushioning stays firm, wipes clean and stands up to repeated daily use.
Person using the Keystone Rotary Torso machine, kneeling with hands on the handles and torso rotated to one side to engage the core muscles.

Simple Design, Intuitive Workouts

All our selectorized stations feature a low stack height for clean, open sight lines, plus space-saving back-to-back configurations, easily accessible open frames, non-slip storage shelf and device cradle.

Instructional diagram on the Keystone Rotary Torso machine showing start and end positions for torso rotation, with targeted core muscles highlighted and a QR code for additional guidance.

Instructional Insights

Visual instructions and video access help users feel confident from their first rep.
Person on the Keystone Rotary Torso machine in a rotated position, holding the handles with hips braced and legs elevated to demonstrate full torso rotation.

Long-term Reliability

Count on all our selectorized stations to withstand intense workouts and constant use thanks to oversized steel frames with robotic welds, reinforced pulleys, solid steel pivot points and heavy-gauge cables.

Specifications

Product features and specifications subject to change.

Adjustments

User Adjustment Range

11 user start positions

Seat Adjustment

Fixed seat

Color-coded Pivots & Points of Adjustment

Yes

Frame & Cables

Frame Color

Matte Black

Frame Finish

Proprietary two-coat powder process

Machine Anchoring

Yes

Cable Transmission

Internally lubricated cables and fittings

Optional Kit

Rep Counter (V-KEY-SL-RC1)

Electronic counter displays reps and time with reset buttons

Incremental Weight System (V-KEY-SL-IW)

2.3 kg / 5 lbs.

Tech Specs

Overall Dimensions

121 x 123 x 155 cm / 47.6” x 48.4” x 61”

Max ”In-use” Dimensions

121 x 123 x 155 cm / 47.6” x 48.4” x 61”

Product Weight

189.6 kg / 418 lbs.

User Amenities

Contoured Seat

Yes

Instructional Placards

Muscle call outs, start and finish exercise illustrations, proper machine movements, QR code link to how-to videos

Upholstery

Polyurethane molded foam

Personal Storage

Tactile storage mats, personal device cradle

Weight Stack

Total Stack Weight

73 kg / 160 lbs.

Max Training Weight

75.3 kg / 165 lbs. including incremental weight

Max Effective Resistance

46 kg / 101 lbs.

Weight Plate Increments

5 kg / 10 lbs.

Weight Stack Guarding

Full front and rear shields

Consistent Stack Height

Yes: 155 cm / 61”

Back-to-back Configurations

Yes

User Adjustment Range

11 user start positions

Seat Adjustment

Fixed seat

Color-coded Pivots & Points of Adjustment

Yes