Seated Back Extension Machine

Back Extension is a fantastic option for fitness enthusiasts who want a reliable and true back extension machine similar to what they would find in a commercial gym. This machine has heavy duty 12-gauge steel construction and can support up to 350 lbs.




Back Extension Machine for Sale, Buy Back Extension Online

Back Extension Machine is the most effective Back Extension Machine. All our designs are according to the human workout physiology principle designed for full accord with human body muscle. As most of us know, quality is the very best point for a health club. We use our sincerity to obtain a high track record as well as long terms clients.

Advanced seated back extension machine leading ranking exercise tools.

Every single selection we provide makes it simple for members to swiftly select their weight and workout securely in a self-supporting device. The procedure is intuitive, as well as our high-performance layouts make sure that your members are getting one of the most out of every set, every rep as well as every moment they spend pursuing their physical fitness goal.

The Manta Adjustable Back Extension is a functional bench meant to reinforce your lower back and construct a strong core.

– HEAVY DUTY BENCH/CHAIR: The DFT- 631 is built of 2″ x 2″ 12-gauge steel with a strong tripod base that keeps the hyperextension bench stable throughout your lower back or ab exercise, even on an irregular home gym or garage gym floor!

– DUAL LAYERED PAD: The high-grade, comfy vinyl padding can endure intense stress throughout your core exercise/lower back workout! The pad has 5 adjustable settings with securing pins for an 8″ series of motion to discover the appropriate setting for you!

– VERSATILE MACHINE BENCH: Use our Roman Chair/Hyperextension Machine to strengthen your reduced back as well as construct a solid core with hyperextension exercises in addition to ab workouts by encountering the reverse instructions, and also your obliques by utilizing one side each time!

– STEEL FOOT PLATE: The strong steel foot plate improves safety and security during your hyperextension as well as core workout!

– CALF PADS: 3 calf pad placements (2″ variety of motion) to maintain you protect during the hyperextension or sit ups as well as other core workouts!

– ADDITIONAL: This exercise chair/exercise bench can be used for body weight exercise or along with a weight vest, bumper plate, kettlebell, or med sphere. Max weight tons of 250 lb. Meant for home/garage fitness center as well as light-commercial use.


Technical Specifications
Dimensions (L x W x H) 1100*1200*1500
Weight 230 kg
Frame finish Proprietary two-coat powder process
Frame Color Iced Silver, Matte Black, Gloss Black, Lace White, Polarized Titanium
Over-sized Internal Frame Tubing Yes
Cable transmission Internally lubricated cables & fittings
Workouts Manual, Endurance, Build, Strength
Hand Grips Exercise specific grips improving feel, function, and form during use
Contoured seat Yes; angled back pad for added comfort

Important: The Back Extension Machine is a built-to-order product and may require a 3-6 week lead time. The Back Extension shown above uses a custom color configuration. Manufactured in China.

Our Advantages

Congratulation! Found the best gym equipment manufacturer in China!


Manta Advantages

Manta offers premium transportation and installation services, with maximum attention to detail. Installation includes the assembly and positioning of the equipment, comprehensive testing, and the final cleaning of the installation area. The services can be booked for the date and time that best suits your schedule.


  • Competitive price, Since machine with 95% similar to world famous brands from looks and quality, but only with 10%-20% price as the original brand. All our discounted complete commercial gym equipment packages are custom made-to-order, specifically to meet the needs of each of our new gym owners.
  • Strength training equipment focuses on ergonomics and flexibility of exercise movement.
  • Manta strength training equipment will bring real power sports experience for every fitness enthusiasts.
  • You and your club will benefit from the biomechanical performance and aesthetic design.
  • All our products are made by top Q235 Steel with superior quality and100% factory sales directly.
  • Manta cover all functional need of strength training equipment.
  • The quality design and our attention to details are carried forward.
  • ODM&OEM acceptable
  • Making gym proposal for the customer by our professional designer if necessary
  • Installation service can be provided if necessary
  • After-sales service team 24 hours online, We have a professional work team to give a quick response to all inquiries in time.
  • Trade assurance order provided for customer benefit as following detail: A. on-time shipment B. Product quality protection C. Payment protection.



Technological Process


Raw Material –>Cutting–>Bending–>Lathe Processin–>Spray Painting–>Sandblast–>Full Welding–>Fitter–>Assembling–>Testing–>Package–>Shipment



1. What is your type of shipping?

By sea, by air, by land, by international express and etc.
We can help you look for the forwarder company with good service and competitive price!

2. How about the payment?


3. How about the delivery time?

Normally delivery time is within 30 days after receiving your deposit, it depends on the order of quantities. According to your requirement and quantity, we’ll complete as soon as possible.

4. What is the MOQ?

The Minimum order of quantities is 1 set.

5. How about your after-service?

We’ll send you the component for free to replace the damaged one during the warranty period. We suggest you update new machine 5 years per time; During this time, any parts missing or broken, just let us know, parts will be sent to you ASAP. And you should share the parts cost and transportation fee.

6. Could you give advice if offer the gym size?

Sure, we have the experience.

7. I don’t know how to assemble the goods, could you help me?

Don’t worry, we have the Installation Instructions and Label No.which help you assemble the equipment.

Good and the professional package is very important for Gym machines, ensure customers to get them in good condition.




  • This unit is only intended for organizations with training areas such as sports associations, clubs, and educational establishments, where the usage is regulated and controlled by a designated person.
  • This unit can only be used by qualified members who are accepted strictly according to certain rules on items such as ages, occupations, health condition, etc. Operations against the regulation are prohibited!
  • This unit must be used under the supervisions of a coach in case of any safety accident.
  • Children must be kept away from the unit in case of severe injury or even permanent disability.
  • Injury to health may result from incorrect or excessive training, please consult the coach to select proper weight resistance and exercise duration.
  • Please select an appropriate weight resistance and starting position (e.g. Adjust seat position) prior to exercise.
  • Check if all set screws are tightened and whether handrails are well fastened prior to use. Otherwise, using it is prohibited in case of any safety accident.
  • For any fault with a weight stack, guide rod or any other mechanical part, please contact professional to fix it immediately in case of an accident as weight stack may fall off.
  • Adjust steel cables to proper lengths, and make sure they are well connected and move smoothly without any twist. The regular inspection must be implemented to avoid any error. If any problem, it must be solved by professionals instantly.
  • Do not return to the starting position too quickly in case of any damage to the weight plates, instead, you must slow down when getting near.
  • No touching steel cables or any moving parts during exercise in case of injury to fingers.
  • Cardiac patients and children under 12 are prohibited from using the machine.
  • This unit is in compliance with EN 957-2.
  • This unit must be located stably with a clearance of 2000mm×2000mm maintained around.
  • This unit is firstly used in training for professionals and secondarily for fitness centers in residential communities and companies.
  • Please stop immediately and consult a physician if you feel any discomfort or abnormality during exercise.
  • This unit must be located stably on an even floor in case of slips during use.
  • This unit must be used in a dry room.
  • Please wear suitable clothes and shoes during exercise.
  • 5 to 10 minutes of warm-up exercise must be taken prior to exercising on the machine.
  • Do not have movements beyond the equipment’s function.
  • Please exercise under the instruction of professional coach.
  • Please check if the unit is well fastened prior to starting your workout.
  • Any adjustment to this unit which may interfere with users’exercise is not allowed to be made.