Ab Crunch / Back extension
The Ab Crunch / Back Extension from the STEEL series is a combination core machine. On one machine you can train abdominal crunches and lower-back extension, the muscles that together support good posture. Switching exercises takes a simple adjustment.
Nothing has to be selected — click an option again to clear it and we will recommend one. This choice applies to every machine in your request by default; mixing colours within one set is arranged individually. Any RAL shade on request, photos show the standard black frame.
Training & technical data
Single or dual-colour frames at no surcharge, any RAL on request. Four leather textures, 10+ shades each, logo embroidery free of charge.
The Ab Crunch / Back Extension from the STEEL series is a combination core machine. On one machine you can train abdominal crunches and lower-back extension, the muscles that together support good posture. Switching exercises takes a simple adjustment.
Why choose the Ab Crunch / Back Extension
Abs and back: two opposing core exercises on one machine.
Guided movement: a controlled path protects the neck during crunches and the lower back during extension.
Padded rollers: comfortable back and leg support throughout the movement.
Measurable load: unlike floor exercises, you add weight in small increments.
Custom colours: a one- or two-colour frame and upholstery matched to your gym.
Who the Ab Crunch / Back Extension is for
It suits gyms, hotel and corporate fitness rooms and rehabilitation centres. People with desk jobs who want a stronger core will value it, as will athletes who need a solid trunk for strength training.
Frequently asked questions
Why train abs and lower back together?
The abdominals and spinal erectors stabilise the trunk together. Balanced training of both supports good posture.
What are the dimensions?
1200 × 950 × 1700 mm, with a net weight of 210 kg.
Steel is our most versatile line: timeless geometry, simple operation and workshop-grade durability that tolerates inexperienced users.
Every unit is made to order in our own workshop — welding, powder coating and upholstery included. Choose the frame colour and finish, add your logo, and we deliver, assemble and set the machine up on site. Spare parts stay in stock, so a gym can be serviced and expanded years later.