DescriptionThe KETTLER Commercial Ab-Crunch and Back-Ext (304-400) is a dual function abdominal and back extension machine with a uniquely compact design. Crafted from commercial-grade components, the KETTLER Commercial Ab-Crunch and Back-Ext requires very little maintenance. The heavy steel tubing used in the fabrication of each machine provides safety and stability for the user as well as a strong foundation for the heavy 200 lb. selectorized weight stack.Quick-set torso pad easily adjusts for both abdominal and back exercisesSeat belt enhances user comfort, support and firm hold-down during exercisesOversized seat accommodates a wide variety of user sizesUpholstered foot rolls help keep user in proper alignment200 lbs. steel weight stackHeavyduty 2” x 4” 11-gaugeoval steel frames combined with 2” 11-gauge round tubing accents.Sealed 2” roller bearings and 1” diameter solid steel axle encased in machined housing on all primary pivot points.4-1/2” and 3-1/2” diameter fiberglass reinforced nylon pulleys with sealed bearings enclosed in protective steel covers.High density foam padding with double-stitched upholstery(black) secured to 3/4” plywood backing.3/16” high performance fitness cable.Magnetically secured selector pins and steel weight stacks are easily accessible from seated position.3/4” precision ground, hard chrome finish, solid steel guide rods.\Steel weight stack enclosures with decorative built-in storage compartment cover.Thermoplastic rubber handgrips secured with aluminum endcaps for durability and improved feel.Protective rubber stabilizer feet with anchoring holes.The KETTLER Commercial Ab-Crunch and Back-Ext is a sleek, full commercial-quality piece of weight equipment that is ideal for outfitting any weight room, recreation center, apartment complex or high end home gym. The “Quick-Set” chest and back roller is comprised of dense padding, which helps to evenly distribute the resistance created by the weight stack. Adjust the roller pad forward for training lower back or forward for maximum abdominal crunch range of motion. Features an oversized seat pad that accommodates users of all sizes and includes a built-in seat belt to keep users from “lifting off” during crunches or back extensions.Weight515 lbsDimensions41 × 45 × 59 inWeight Stacks200 lbs. Steel weight stack. Enclosures include decorative built-in storage compartment cover.FrameHeavy duty 2” x 4” 11-gauge oval steel frames with a combination of 2” round tubing.FinishPowder coat finish in Platinum Sparkle with Charcoal accentsCables3/16″ high performance cable.PaddingHigh density foam padding with double-stitched upholstery (black) secured to 3/4” plywood backing.Other SpecsSealed 2” roller bearings and 1” diameter solid steel axle encased in machined housing on all primary pivot points.1” solid steel axles with 1” bronze oil lite bushings on all secondary pivot points.4-1/2” and 3-1/2” diameter fiberglass reinforced nylon pulleys with sealed bearings enclosed in protective steel covers.Thermoplastic rubber handgrips secured with aluminum end caps for durability and improved feel.Protective rubber stabilizer feet with anchoring holes provided on all machines.
