BIO-ARC LEG CURL
The Bio-Arc Leg Curl (BA-708) is part of TuffStuff’s most innovative commercial strength series. Over a period of three years, TuffStuff tested and modified nearly every component on the machine. Each design was independently tested – using goniometry testing, along with muscle recruitment and activity measurements through electromyographic (EMG) – and then adjusted and refined for optimal biomechanics. The end result is the Bio-Arc Leg Curl, which maintains hip angle/pelvic tilt to optimize muscle length throughout the entire range of motion.
Optimal Mechanics for Muscle Activation
User’s body moves along a linear arc trajectory to optimize muscle recruitment
Greater range of motion and muscle contraction at full curl
Maintains hip angle / pelvic tilt to optimize muscle length
Free flow leg roll automatically adjusts to different leg lengths
Leg, back and seat pads designed to maintain neutral positions
Quick release allows for easy adjustments
Custom upholstery and frame colors available
Full Commercial Warranty
Weight 555 lbs
Dimensions L 64 x W 48 x H 58 in
COMMERCIAL WARRANTY
10 YEARS: Frames, welds, linear shafts and weight plates.
5 YEARS: Pivot bearings, pulleys, bushings, gas-shocks, and guide rods.
3 YEARS: TrakHandles
1 YEAR: Linear bearings and pull-pin components.
6 MONTHS: Upholstery, cables, finish and rubber grips.
ALL OTHER PARTS not mentioned, one year from the date of purchase to the original purchaser.
Frame Materials
3" and 4-1/2” 11-gauge 120 wall round tubular steel with a combination of 2×4” 11-gauge 120 wall tubular steel.
Welds
All welded construction by inert-gas MIG welding conforming with all Structural Welding Code-Steel Standards and Specifications.
Padding
Molded PU foam glued to 1” industrial plywood backing, combined with double-stitched premium upholstery.
Upholstery
Premium Bolta Sport vinyl with PreFixx, formulated to resist bacteria, stains, mildew, oil and UV stabilized pigments. Meets most flammability test requirements. All upholsteries are double-stitched with “hidden” borders. Bolta Sport color swatches are available upon request. Sixteen standard colors. Custom colors are available – please inquire with your sales representative.
Finish
Choice of two primary colors: Gloss Charcoal Gray with Matte Black accent or Platinum Sparkle with Matte Black accent. Custom colors available, please inquire with your sales representative.
Cables
3/16” USA-Made Certified EXERFLEX PRO® high performance fitness cable.
Guide Rods
3/4” solid steel 1045 (tgp) highly polished hard chrome finish.
Adjustment Pins
1/2" push-pull spring loaded solid steel adjustment pins with ultimate load of 9040 lbs. and 46042 sheer strength.
Pulleys
4-1/2", 3-1/2" and 2" fiberglass reinforced nylon pulley.
Weights
3/4" black painted solid steel plates with reduced noise and self-aligning low friction sleeves. 200lbs. weight stack.
Other Specs
IMPORTANT NOTE: Equipped with 200 lbs. weight stack: weight lifted is the approximate combined user\'s weight and weight selected (see weight guide label).
CUSTOM STABILIZER FEET: Heavy grade molded rubber base feet insures stability, prevents equipment movement, and may be bolted to the floor.
SELECTOR WEIGHT PINS: Weight pins are solid steel, magnetic with ball-end to ensure a tight connection and secure fit.
FASTENERS: All frame bolts and nuts ard 3/8" and 1/2" zinc plated grade 8. Meets ANSI specifications.
LINEAR SHAFTS: 1" precision Rockwell C60 grade solid shaft.
BEARINGS: 2" High precision linear sealed ball bearing (load rating of 1900 lbs.).
US Patents
US PATENT NO. 9,533,188 B2; 9,539,462 B2 AND OTHER PATENTS PENDING.
Availability
* Please Note: Bio-Arc is not currently available in the USA. To learn more please read the latest announcement on the TuffStuff NEWS page.