K3717
Back Extension
  • Description

    INPEK Fitness’ K3717 Back Extension machine focuses on isolating and strengthening the lower-back muscles. It also supports overall body workouts, making it a valuable tool for maintaining a consistent and balanced fitness routine.    


  • Advantage

    1. The main frame uses 75*130*3.0mm oval tubing, the functional area uses 58*101*3.0mm elliptical tubing, the force arm in the functional area is made from Φ60mm round tubing, and the connecting tubes are 70*140*3.0mm rectangular tubing.
    2. The overall structure is ergonomically designed to ensure scientifically correct motion angles and trajectories. The centerless ground alloy steel guide rods ensure smooth, uninterrupted operation, while the parabolic curve design of the main frame provides an elegant appearance.
    3. The front and rear shields are made from transparent ABS with a smoked finish and a textured surface that resists scratches. The aluminum alloy edging and specialized upper and lower decorative pieces add a luxurious touch.
    4. The pulleys are made from POM material, following an involute curve that aligns with the biomechanics of muscle movement.
    5. The seat and backrest cushions are made from integrated MC foam with a PU leather cover.
    6. The force arms are made from integrated aluminum alloy die-casting, connected to the pulley flange with aluminum alloy end caps, ensuring both beauty and safety.
    7. The power arms are equipped with padded covers, stainless steel adjustment plates, and aluminum alloy end caps.
    8. The unit includes die-cast aluminum alloy foot pedals and lumbar pads to ensure safe and accurate movement.
    9. The handles are fitted with anodized aluminum alloy end caps, combining both durability and a refined appearance.
    10. The 7*19 coated steel cable can withstand a tensile force of 1000 kg.
    11. The aluminum alloy handles and 304 stainless steel weight selection pins, equipped with magnetic rings, offer a combination of aesthetics, safety, and durability.    


Technical Parameter
  • Net Weight
    220 kg
  • Loading Weight
    90 kg
  • Dimension
    1260*1100*1610 mm
  • Exercise Part
    Iliac rib muscle, longest muscle, spinous muscle, lumbar quadratus muscle
CONTACT INPEK
Address:

No.2677,WuTun Road,Xin Wu economic development zone,Wuhu,Anhui,China

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