The Hammer Strength Ground Base Jammer is a great tool to build ground-based explosiveness. The open floor space is designed to keep the exerciser firmly planted on the ground in a natural position while maximizing power and explosiveness from the feet up. The angled handles allow the exerciser to adjust their grip to a desirable placement, resulting in a properly controlled motion.
The Hammer Strength Ground Base Jammer is a state-of-the-art training machine designed to give you the ultimate strength training experience. With its unique Ground Base technology, this jammer allows you to train your muscles in a more natural way, increasing the effectiveness of your workout.
The machine is equipped with a solid metal frame that ensures strength and stability, even during the most intense training exercises. It is equipped with 6 holders for weight plates.
The Hammer Strength Ground Base Jammer allows you to challenge yourself in new ways and take your training to the next level. With a wide range of different exercises to choose from, it's a great machine for beginners and experienced trainers alike. So if you want a stronger, more toned body, the Hammer Strength Ground Base Jammer is the perfect choice.
- Oversized item: requires minimum ceiling height of 100"
Key Features:
- Very conducive to explosive or transfer training
- Ideal training tool for the athletic market
- Feet on the floor positioning promotes functional training
- Highly versatile allowing both unilateral and bi-lateral training
- Top Ten selling Hammer Strength machine
Converging/Diverging Arms
The key to the Jammer’s unmatched power transfer lies in its converging and diverging arm path. Unlike rigid, linear pressing arms, this design follows the body’s natural movement patterns, delivering a more athletic, explosive, and functional pressing motion that translates directly to sport and strength performance.
Built for Explosive Power
Athletes don’t just lift—they drive, push, and explode. The Ground Base® Jammer trains force production in the most athletic way possible, mimicking the powerful pressing movements seen in sport. Whether it's linemen battling in the trenches or sprinters driving out of the blocks, the Jammer builds the kind of strength that translates to real performance.
Ergonomic Handles
The Jammer’s angled, ergonomic handles provide a natural and powerful grip position, reducing wrist strain and maximizing force output. Whether driving through a press or loading up for explosive reps, the handles put the athlete in total control—allowing for optimal leverage and peak performance.
Unmatched Since the ‘90s
The Ground Base® Jammer isn’t new—it’s legendary. While other companies try to replicate its movement with half-measures, only Hammer Strength delivers the true Jammer experience. Designed in the mid-90s and still dominating weight rooms today, it remains the ultimate training tool for explosive strength.
Band Pegs
Take your power development to the next level. The built-in band pegs allow athletes to add accommodating resistance, increasing tension through the full range of motion and reinforcing explosive strength at the top of each rep. Perfect for athletes who need speed, power, and controlled force production.
Dimensions (L x W x H) | 66 in x 79 in x 83 in (167 cm x 202 cm x 212 cm) |
Weight | 370 lb (168 kg) |
Max Load Capacity (per arm) | 4 x 45 lb plates (4 x 20 kg plates) |
Starting Resistance (per arm) | 8 lbs (3.6 kg) |
Recommended Plate Mix | 4 x 45 lb plates, 4 x 25 lb plates, 4 x 10 lb plates |
Weight Storage Horns | 6 |
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