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.
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.
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.
Adjustment Points Made Easy
Make it easy for users to get set up and started quick with clearly marked adjustments.
Comfort & Moisture-Resistance
Ergonomic cushioning stays firm, wipes clean and stands up to repeated daily use.
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 Insights
Visual instructions and video access help users feel confident from their first rep.
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