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Pure
Classic weight training.
Strength Training Reengineered for Modern Spaces
by Spirit Commercial
Redefining what strength equipment should be
iStrength isn’t just a collection of machines. It’s a system designed around how people actually move.
Four stations · Electronic resistance
Every detail, from motion paths to adjustability, is engineered to support natural biomechanics, reduce compensation, and deliver a more effective training experience. The result is strength equipment that feels intuitive for beginners, yet uncompromising for advanced users.
Because better movement isn’t a feature. It’s the foundation.
- Stations
- 4
- Training modes
- 4
- Resistance range across the line
- 13–271 lb
- Integrated
- Rep tracking
Smart Training Technology
Four dynamic training modes
Advanced electronic resistance with intelligent software gives users the variety they need to break plateaus and achieve faster results, whether they’re rehabilitating, building muscle, or pushing peak performance.
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Eccentric
Increased resistance on return movement.
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Isokinetic
Constant speed regardless of force applied.
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Elastic
Resistance grows as range increases.
Curves are illustrative, not measured data
The iStrength line-up · Versatile. Efficient. Inclusive.
Smarter movement. Stronger results. Built for every body.
Dual-function designs and wide resistance ranges make every machine adaptable to users of all abilities. Seamlessly transition between complementary exercises at a single station, maximizing your floor space.
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CSI-BCTE
iStrength Biceps/Triceps
Four training modes and a 15–190 lb electronic resistance range.
Explore -
CSI-CPSP
iStrength Chest/Shoulder Press
Four training modes and a 33–271 lb electronic resistance range suit users of all abilities.
Explore -
CSI-LELC
iStrength Leg Ext/Curl
18–201 lb electronic resistance range with a padded, adjustable seat.
Explore -
CSI-LROW
iStrength Low Row
13–265 lb electronic resistance range with low handle position encourages proper form.
Explore
Precision biomechanics
Train with precision
Each movement path is carefully designed to align with the body’s natural mechanics, helping users move more efficiently, reduce strain, and train with confidence.
Integrated rep tracking
Integrated performance feedback
Built-in rep tracking provides immediate feedback, helping users stay focused, accountable, and motivated throughout every set.
Commercial-grade durability
Built to endure
From high-quality materials to rigorous testing, every unit is designed to perform, day after day, user after user.
Heavy-gauge steel frames and commercial-grade components ensure reliable, long-term performance in any commercial environment. Precision ergonomics keep users comfortable, aligned, and focused on every rep.
One cohesive system
A complete strength ecosystem
iStrength is designed to work as a cohesive system, giving facilities the flexibility to build layouts that meet the needs of their members, patients, or athletes.
Whether you’re outfitting a wellness center, fitness space, or full commercial gym, iStrength scales with you.
From iron
to intelligence
Talk to our commercial team about building an iStrength floor for your facility.