Keiser A400 Chest Press Pro

Product Information                                                   Product Code: 001335

Are you eager to experience it firsthand? Reach out to us at info@fightstarco.com or give us a call at 0333 090 8786 to schedule your personal viewing. This is your opportunity to explore the entire Keiser range that we offer, all available for in-person experiences. Don’t miss out on the chance to see and feel what makes Keiser products exceptional! (T&C Apply) 

Please Note, You will need to buy an air compressor and an upgraded screen along with the machine. Each air compressor works for up to 8 machines, while the new A400 screen can power up to 16 machines. The new screen requires the compressor to power the screen, giving the user the best experience to the user.  

A400 TECHNOLOGY

UNLOCK TRAINING AND REHAB POTENTIAL WITH PRECISE, REP-BY-REP DATA.

The A400 technology offers visual feedback and performance insights in real time.
And you can export A400 data for use in your analytics or records platform, whether it’s custom or off-the-shelf.

Power

See mean and peak power for each rep.

Velocity

See mean and peak velocity for each rep.

Range of Motion

See data for both concentric and eccentric phases for each rep.

Unilateral Comparison

See velocity and power data for the left and right side-by-side on unilateral machines.

VERSATILITY

A MORE VERSATILE CHEST PRESS

Use a variety of training and rehabilitation methods to improve strength, speed, and power — all with one machine.

Pure Resistance Technology™

LOW-INERTIA DESIGN MAKES IT MORE VERSATILE.

Pure Resistance Technology (PRT) drives the design of the A400 Chest Press Pro. We remove as much mass as possible to give you a pure, highly versatile resistance.

“Others build their machines like tanks.
We build ours like aircraft — strong, but very light.”

DENNIS KEISER - CEO, Keiser Corporation

LOW-INERTIA ARCHITECTURE

WE REMOVE ANY MASS WE DON’T NEED.

We engineer the linkages between you and the resistance to have as little mass as possible. With less mass, there’s less inertia and momentum.

PNEUMATIC RESISTANCE

A MORE VERSATILE ALTERNATIVE TO IRON

We use compressed air under digital control instead of iron resistance. It has almost no mass, inertia, or momentum. No matter how fast you move, you can’t throw it, and you don’t have to slow it down.

VERSATILITY

LOW-INERTIA MEANS MORE WAYS TO TRAIN AND REHAB, MORE EFFECTIVELY.

With almost no inertia, your resistance is more effective and safer at a wide variety of speeds. This gives you more ways to train and rehab.

DYNAMIC VARIABLE RESISTANCE (DVR)

RESISTANCE THAT MATCHES YOUR STRENGTH CURVE.

On a chest press, you’re stronger at some points than at others. We optimise resistance throughout your range of motion. This makes your muscles work at their maximum potential across that range.

IDEAL RESISTANCE

MUSCLES WORK AT THEIR MAXIMUM POTENTIAL

We’ve programmed the ideal resistance curve for a chest press into the A400 Chest Press Pro.

1. Less resistance where you're weakest: On a chest press, you’re weakest at the beginning of the concentric phase. Keiser’s DVR optimises your starting resistance with lower resistance. 

2. More resistance where you’re strongest: As you continue through the concentric phase, you become mechanically stronger. Keiser DVR increases resistance to match your body’s natural strength curve.

VERSATILITY OF DVR

A RESISTANCE CURVE THAT KEEPS ITS SHAPE AT ANY SPEED.

Inertia and momentum distort iron’s resistance curve. The faster you go, the more it changes. Thanks to Pure Resistance Technology, Keiser’s DVR will match your body’s ability to produce force, no matter your speed or resistance setting.

UNILATERAL MOVEMENT

TRAIN, REHAB, AND ASSESS LEFT AND RIGHT SIDES INDEPENDENTLY.

On the A400 Chest Press Pro, the left and right sides move independently and provide separate data for each side.

A400 TECHNOLOGY

IDENTIFY UNILATERAL IMBALANCES.

Get data for each limb to identify problems that can lead to underperformance or injury. Data includes range of motion, velocity, and power.

✅ Prevent unilateral compensation. Prevent the stronger limb from compensating for the weaker limb.

✅ Repair unilateral imbalances. Train and rehab the left and right sides independently. Improve symmetry of strength, power, velocity, endurance, and size over time.

PREVENT COLLARERAL DAMAGE WITH ALMOST ZERO SHOCK LOADING.

Iron's inertia and momentum may cause repeated stress on joints and connective tissue. Keiser eliminates that, so your training is far less likely to cause injury.

OPTIMIZE RESISTANCE

CHOOSE THE PRECISE RESISTANCE FOR YOUR GOEAS.

With one-pound or one-kilogram increments, ranging from 0 - 546 lbs / 0 - 248 kg, it’s easy to find the right resistance level.

THUMB-BUTTON RESISTANCE CONTROL

CHANGE RESISTANCE ON THE FLY DURING EXERCIES.

Change resistance at any point during a rep with push-button convenience and digital precision.

✅ Isometric overload made easy. Get into an isometric position, then increase resistance for isometric training.

✅ Eccentric overload made easy. Increase resistance after the concentric phase of a rep.

✅Get rehab patients into position before adding load. This makes it easier to determine what resistance level the patient can achieve in tiny increments.

Model 1338

A400 Chest Press Pro

ENGINEERED TO PERFORM. BUILT TO LAST.

Innovative engineering. Solidly reliable. And simply more versatile.

BUILD IT STRONG, BUILD IT FAST

For those interested in powerful resistance, look no further. This machine uses Keiser’s innovative engineering to give up to 600 pounds of resistance. It’s great for elite‑level athletes and for eccentric overloading. Unlike conventional machines that use iron, the A400 Chest Press Pro’s low‑inertia design gives you smooth resistance. This can help protect joints and connective tissue from shock loading. The result is a workout unlike anything else on the market.