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The DF-306 Back Extension/Ab Crunch strengthens your lower back and abdominals.
SportsArt's design is the ideal product for your space, combining two motions in one beautifully designed machine. It is rated to a maximum user weight of 500 lbs / 227 kg and occupies a footprint of 44.6 x 44.1 x 57.2 in / 113.2 x 112.2 x 145.3 cm at 474 lbs / 215 kg. Full manufacturer specifications are listed below so you can confirm clearance, capacity, and power requirements before the unit ships.
| Specification | Detail |
|---|---|
| Manufacturer | SportsArt |
| Max User Weight | 500 lbs / 227 kg |
| Weight Stack | 220 lbs / 100 kg |
| Starting Weight | Ab Crunch: 7.7 lbs / 3.5 kg, Back Extension: 7.7 lbs / 3.5 kg |
| Dimensions (L x W x H) | 44.6 x 44.1 x 57.2 in / 113.2 x 112.2 x 145.3 cm |
| Unit Weight | 474 lbs / 215 kg |
| Dimensions (LxWxH) | 44.6 x 44.1 x 57.2 in / 113.2 x 112.2 x 145.3 cm |
| Coverage | Term |
|---|---|
| Frame | 10 Years |
| Grips, Enclosures & Covers | 1 Year |
| Upholstery | 6 Months |
Warranty terms are SportsArt’s and apply in the U.S. and Canada. Coverage can depend on the installed setting — contact us if you need the terms confirmed in writing for your facility before ordering.

