Ground Base Jammer

Core Functional Advantages

1. Open Ground-Based Standing Design For Full-Body Force Transmission & Explosive Power Gain

This machine features a seatless wide standing base, requiring users to plant feet firmly on the ground and generate power via ankle push-off, hip extension, core bracing and synchronous upper-body press, perfectly simulating competitive movement patterns like sport collision, sprint drive and combat push. Two completely separated independent press lever assemblies with dedicated Olympic weight sleeves on each side allow different weight loading left/right to strengthen weak unilateral chest & shoulder muscles, solving the limitation of linked integrated machines unable to correct strength imbalance. Max single-side load reaches 80kg, total overall load capacity 160kg, with soft initial dead weight resistance of approx. 3.6kg, covering light shaping rehab up to heavy explosive power training. Six integrated surrounding plate storage pegs organize weights neatly to save floor space; dual side band anchor points support extra resistance band loading for advanced explosive drills. Counterbalanced swing levers deliver gentle shock-free starting resistance for beginners, female shaping users, posture correction seniors and professional competitive athletes of all levels.

2. Bionic Convergent-Divergent Press Trajectory & Multi-Grip Anti-Slip Handles For Zero Joint Compression

Designed based on full-body kinetic biomechanical datasets, dual levers adopt natural inward-converge & outward-diverge curved press path, matching native contraction routes of pectoralis major, anterior deltoid and triceps brachii, drastically cutting rotator cuff shear force and eliminating shoulder injury risks common with fixed linear press machines and free barbells. Two sizes of knurled anti-slip rubber wrapped handles: wide grip targets overall chest mass, narrow grip focuses on anterior shoulders and triceps; thick rubber coating prevents slipping during high-intensity explosive lifts. No backrest forces active core, knee and ankle stabilization throughout movement, training full-body coordinated power instead of isolated upper limbs. Beginners quickly master ground-driven explosive force patterns; elite athletes safely handle heavy loads to boost on-field impact performance, delivering vastly superior long-term shoulder, elbow and lumbar safety compared with seated press equipment.

3. Heavy-Duty Solid Spindle Silent Transmission For Smooth Operation & Long Commercial Lifespan

The left and right independent press lever assemblies adopt thickened quenched solid main spindles plus multiple sets of industrial fully sealed maintenance-free silent bearings, maintaining ultra-smooth quiet operation for hundreds of thousands of explosive press cycles without jamming, abnormal noise or backlash clearance. Resistance rises gradually during concentric forward press and peaks at full extension for full chest & shoulder squeeze; tension releases evenly during eccentric retraction to thoroughly stretch tight anterior upper-body muscles, greatly boosting efficiency for both hypertrophy and power training. All spindle pivot and plate loading points are reinforced with double steel triangular bracing, spindles quenched and hardened for outstanding wear & impact resistance. Sealed bearings require no regular lubrication, drastically cutting later maintenance labor and material costs for sports conditioning centers and gyms. The integral wide trapezoidal base frame resists deformation and tipping under full maximum explosive load, boasting a far longer service life than simple single-lever press machines under year-round heavy athletic training use.

4. Specialist Explosive Power Trainer To Complete Functional Gym Matrix, High-Revenue Differentiating Equipment

As an exclusive ground-driven explosive training machine, it forms a complete dual-purpose athletic performance & general shaping workout system when matched with smith machine, hack squat, seated shoulder press and core trainers, serving as essential core equipment for professional sports teams and functional PT studios.

• Contact sports athletes (rugby, basketball, wrestling, combat, sprinters): Build full foot-lower body-core-upper body force transmission chain to improve collision, sprint and pushing explosive power while lowering rotator cuff injury risks;
• General gym members: Safely sculpt chest, anterior deltoid and triceps mass, strengthen core stabilizers and fix rounded forward shoulder posture;
• Personal training posture correction: Light unilateral press training to fix uneven shoulder height and asymmetric chest muscle development;
• Rehabilitation users: Controllable soft press trajectory for mild rotator cuff injury recovery and post-surgery upper limb strength rebuilding. Compact open-frame footprint fits large commercial training zones and compact private home gyms equally well.

Premium Commercial Manufacturing Craftsmanship

Heavy-Duty National Standard Q235 Triangular Reinforced Floor Frame with Robotic Full Seam Welding for Rock-Solid Stability The whole frame adopts national standard thickened Q235 rectangular steel tube (40×80mm, 3.0mm wall thickness). Double-layer steel reinforcement is applied on all press levers, wide base and plate loading zones. Industrial robotic positioning full-seam welding produces uniform full welds, followed by professional high-temperature stress relief treatment post-production to prevent frame deformation, weld cracking and machine shifting under long-term full explosive loads. Double-layer high-temperature electrostatic powder coating with sandblasting pretreatment: anti-rust primer base plus scratch-resistant top finish, resisting sweat corrosion, humid gym air and heavy training bumps, retaining premium appearance without paint peeling or rust for years. Net machine weight 147kg, widened integrated trapezoidal base fitted with thick anti-slip rubber foot pads, the machine remains perfectly stable with zero shift or tipping even under full unilateral maximum explosive load.

Anti-Slip Rubber Handles & Full 304 Stainless Steel Hardware for Comfort, Wear Resistance & Ultra-Low Maintenance Dual-size press grips are wrapped with thick high-elastic anti-slip rubber for shock absorption and secure hold during high-power lifts. All main spindles, weight sleeves, band anchor pegs and bearing fasteners are manufactured from 304 stainless steel for superior rust resistance, offering smooth tight adjustment free of slipping or loosening over long-term heavy use. The sealed maintenance-free bearings eliminate frequent oiling requirements, greatly reducing manpower and financial costs for later part replacement and gym maintenance, delivering excellent long-term cost performance.

Strict Pre-Delivery Full Inspection & Multi-Layer Safety Protection Complying with CE International Commercial Standards Every Ground Base Jammer undergoes rigorous pre-factory testing including full limit load bearing, 100,000-cycle explosive press fatigue, overall stability and stroke limit safety examinations to strictly control structural strength in every detail. All frame edges are fully rounded and polished without sharp corners; anti-drop limit collars are equipped on bilateral weight sleeves to prevent weight plate falling off; built-in mechanical stroke limit latches restrict maximum forward press range to avoid over-stretching rotator cuff tendons; wide anti-slip base eliminates foot sliding during movement. The machine fully complies with CE international commercial fitness equipment safety regulations, with durability and safety grades far superior to household simple press machines, making it a high-return long-term functional specialist investment for gym and sports team operation.

Technical Specification Sheet

Core Mechanism Independent Bilateral Split Bionic Convergent-Divergent Press Lever Trajectory, Multi-Grip Anti-Slip Press Handles, Wide Anti-Tip Trapezoidal Standing Base, Heavy-Duty Solid Spindle Silent Sealed Bearings, Bilateral Independent Weight Plate Sleeves

Target Muscles Primary: Pectoralis Major, Anterior Deltoid, Triceps Brachii; Synergists: Quadriceps, Gluteus Maximus, Transversus Abdominis, Deep Hip & Ankle Stabilizer Muscles

Applicable Scenarios Commercial Gym, Ball & Combat Sports Conditioning Center, Functional Personal Training Studio, Sports Rehabilitation Clinic, Premium Home Garage Gym

Standard Training Guidance

Mode 1: Standard Full-Body Explosive Press (Sport Power Gain & Chest-Shoulder Tricep Shaping)

1.Stand with feet shoulder-width apart firmly planted on the machine base, grip press handles evenly, brace core tightly with neutral lumbar spine, slightly bend hips & knees to prepare ground-driven power.

2.Initiate movement via foot push-off & hip extension to transfer full-body force, press levers forward evenly with convergent arm path until arms are slightly soft (not fully locked), hold peak contraction for 2 seconds to fully squeeze chest & anterior shoulders.

3.Retract levers slowly and evenly back to chest starting position, maintain braced core and stable lower limbs throughout controlled eccentric phase. Prohibited: Rounded lumbar spine, knee valgus drift, upper-limb isolated force only, inertial bouncing lever press.

Variation 1: Unilateral Single-Arm Press (Correct Uneven Shoulder Height & Bilateral Strength Imbalance)

Load heavier weight plates on one sleeve and lighter plates on the other, perform press with a single arm separately to strengthen the weaker chest & shoulder unilaterally, balance bilateral upper-body mass and fix slouched asymmetric posture.

Variation 2: Narrow-Grip Press (Anterior Deltoid & Triceps Focus)

Grip inner narrow handles to shift tension toward front shoulders and posterior arms, refine shoulder contour and sculpt tricep definition.

Variation 3: Band-Aided Explosive Training (Elite Athlete Dynamic Power Specialization)

Attach resistance bands between dual side anchor points and lever sleeves to add progressive resistance throughout the full press range, simulating in-game dynamic opposing force and boosting high-velocity explosive capacity.

Training Volume Reference

• General chest-shoulder shaping & posture correction: 3–4 sets × 10–15 reps with medium weight;
• Elite athlete explosive power training: 4–5 sets × 4–8 reps with heavy fast concentric drive;
• Low-intensity rotator cuff rehab & strength recovery: 3–4 sets × 12–18 reps with light load.

Closing CTA

To develop full ground-transferred full-body explosive power for ball & combat athletes, safely sculpt chest, shoulder and tricep muscle lines, and correct uneven shoulder height & asymmetric upper-body strength posture, the Yingruis Ground Base Jammer Independent Lever Explosive Press Trainer is an irreplaceable flagship differentiated specialist equipment for commercial gyms, professional sports conditioning halls and functional personal training studios. Powered by mature fully separated bilateral split lever structure and dual independent plate loading design supporting differentiated unilateral weight adjustment, this trainer adopts a native convergent-divergent bionic press trajectory to deliver all-round rotator cuff joint protection. The open standing structure simultaneously activates lower limbs and core, supporting multi-scenario usage including competitive explosive training, general body shaping and posture correction, alongside commercial-grade rugged durability for year-round heavy use. As a direct factory supplier, we provide full customization services on frame color, laser logo engraving and structural dimensions, with fast delivery from abundant ready stock and complete long-term full-machine after-sales warranty services. It is the optimal cost-effective choice for equipping new gym functional training zones, procuring professional sports team conditioning gear, and upgrading personal training studio facilities.