Ironman Gravity 4000 Inversion Table Review – Pros & Con’s (2020)

Last Updated: January 14, 2020

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The Gravity 4000 is Ironman’s most popular inversion table. It’s best known for its robust tubular frame that can hold up to a 350-pound user. It sports a memory foam bed with extra-long safety handles. It also uses an ankle support system that employs a locking lever that makes it possible to adjust the support’s tension without bending over. Overall, the Gravity 4000 is a good choice if you’re looking for an inexpensive machine for simple stretching and spinal decompression.

Unfortunately, this inversion table isn’t UL certified or FDA approved. So quality and safety haven’t been tested. If you want a table that has exceeded UL’s safety and quality test, then check out the Teeter X3. You’ll find that the X3 has more features and is of better quality.


Who It’s For:

The Ironman Gravity 4000 is engineered for people looking for:

  • Potential relief from back pain.
  • A larger inversion table
  • A less expensive inversion table
  • A comfortable padded bed
Pros
  • Inexpensive
  • Ergonomic cuff ankle lock support system
  • Ability to adjust ankle support tension with a handle — no bending over
  • The frame is powder-coated and scratch-resistant
  • Comes with a removable lumbar pillow
Cons
  • The heavy-duty build makes this inversion table heavy at 76 pounds
  • Difficult to assemble — incorrect assembly can lead to injury.
  • Only comes with a standard 1-year warranty
  • Guillotine supports could lead to finger injury upon folding.
FeaturesSpecifications
  • Extra-wide tubular steel frame
    The Gravity 4000 was designed with an extra-wide frame. With a wider frame, you can fit a larger variety of people. Those who may consider themselves bigger will feel more comfortable with the added room.
  • Easy Reach Adjusting Ratchet Ankle Locking System
    With a lot of inversion tables, you have to bend down and adjust a pin system by the ankles to even use the inversion table. And if you already have back pain… well… that doesn’t work. With the Gravity 4000, you adjust the ankle supports with a long lever and a button. No bending required.
  • Extra-Long Safety Handles
    These handles help you control how much and how fast you invert. This can be incredibly useful for new users who don’t quite have the confidence to do a full inversion. These handles give you the option to ease yourself into the most comfortable position.
  • Max Height: 6’6″
  • Max User Weight Capacity: 350 pounds
  • Non-use Dimensions: 80″H x 26″W x 17″D
  • Max In-Use Dimensions: 49″L x 26″W x 65″H
  • Product weight: 76 pounds

In-depth review of the Ironman Gravity 4000 Inverson Table

Construction

The Ironman Gravity 4000 is built with quality materials. Some things that stand out on the construction:

Frame

The frame on the Gravity 4000 is made from heavy-duty tube steel in an A-frame configuration. It uses guillotine supports to lock out the frame and to keep it from folding while in use. A change I’d like to see is a design that protects the finger as some other brands have done. With this Gravity 4000, it’s easy to pinch your finger when folding it up.

Bed

The bed is made from a very comfortable memory foam padding that provides you with plenty of support. This bed would be perfect for those who want to invert but experience pain when laying on hard surfaces. The memory foam is covered in a tough double-stitched vinyl layer, which is sweat-resistant and extremely easy to clean. It also makes it more resistant to friction wear that can happen with extended use.

(Tip: As with most vinyl materials, you’ll want to keep any pointed or sharp objects away from it in that it will puncture.)

Assembly

The assembly of the Gravity 4000 can be quite daunting because there are a fair amount of small parts that need to be attached to the frame. It does come with the tools that you’d need to put it all together, but it may be easier to assemble with multiple people.

Something to consider also is that you’ll be assembling the ankle support system as well as the inversion system. These are what keep you secured to the bed, so if you’re not confident in your mechanical abilities, it may be in your best interest to have a professional assemble this for you.


Functionality / Performance

The Gravity 4000 uses gravity to help decompress and rejuvenate the spine while also stretching muscles like the erector spinae group that run parallel to the spinal column. This can greatly reduce pressure, pain, and stiffness in the back and increase your quality of life.

Powder-coated Frame

The Ironman Gravity 4000’s frame has been powder coated. Powder coating is a process in which pigment and resin are baked into the metal in a curing oven. The result is an incredibly durable outer coating on the metal that’ll resist scratches and other abuse. Powder coating is commonly seen in the auto industry and is especially popular on rims and engine parts because of its overwhelming durability when compared to regular paint. With the Gravity 4000, you get the coating on the frame to protect it from chips, scratches, and general fade that would make it an eyesore. Instead, you’re getting a product that won’t likely be scratched by anything in your household

Easy Reach Ankle Locking System

If you’re someone who has pain or trouble bending over, then using the standard pull pin system on an inversion table can be a non-starter. The Easy Reach has a long handle putting the ratchet system in arms reach. You can activate it by pushing the oversized button at the top of the handle with your palm.

Extra-Long Safety Handles

The extra-long safety handles give users a couple of essential advantages. The foam covering the handles provides more grip and keeps you safe if you accidentally hit them.

Their placement makes them perfect for stretching. While inverted, you can lean over and pull into a twisting backstretch and intensify the results. Another aspect is that these handles will help you control how fast you invert as well as help you rotate back up. You can even use them to rock back and forth, giving yourself the small intermittent breaks.

Bottom Line:

The bottom line is that the Ironman Gravity 4000 may not be the top brand out there, but it is the less expensive runner up. With it, you’re getting a high weight capacity of 350 pounds, and an ankle lock support system with an adjustment lever and removable lumbar support.

Normally in any given field, you’ll find 5 -10 brands that are fairly similar and competitive. That is not the case with inversion tables. There is the top brand Teeter that produces the best on the market in terms of the warranty, assembly, UL certification, FDA approval, and safety.

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