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ISO-Lateral Shoulder Press DRE8004

Regular price $2,649.00
Sale price $2,649.00 Regular price $2,949.00 10% off (Save$300.00 )

Key Features

1.

ISO-Lateral Independent Converging Arms

Left and right arm frames move independently on converging pressing paths that simulate the natural trajectory of the shoulder joint during overhead pressing. The shoulder's glenohumeral joint does not press straight upward in a vertical line — it follows a slightly inward arc as the arm rises overhead, which is why a fixed bilateral press bar requires the shoulder to compromise its natural path to accommodate both arms moving on the same fixed axis. The independent convergence path on the DRE8004 allows each arm to follow the correct trajectory independently, which maintains shoulder joint alignment through the full press and allows each deltoid to reach its peak contraction at the top without being mechanically limited by the opposite arm.
2.

Hammer Grip Handle Position

The shorter hammer grip handles (28×36×130mm) position the forearms in a neutral wrist orientation during the overhead press rather than the pronated position of a standard overhead grip. The neutral forearm position reduces the internal shoulder rotation that occurs during a pronated overhead press, which is the rotation that narrows the subacromial space and creates impingement risk under heavy loading. The hammer grip also shifts the press emphasis toward the anterior deltoid by changing the angle at which the deltoid fibres are recruited, making it the grip choice for anterior deltoid isolation work and for users who experience shoulder discomfort during standard overhead pressing.
3.

Standard Overhead Grip

The longer standard grips (36×28×460mm) provide the full overhead press handle for complete deltoid engagement through the entire pressing arc. The greater grip length accommodates different shoulder widths and allows a stable hand position through the overhead arc without the forearm reaching an awkward angle at the top. The standard grip recruits all three deltoid heads — anterior, lateral, and posterior — through the press path, making it the primary grip for overall shoulder development and pressing strength across the full deltoid.
4.

Pneumatic Rack-and-Pinion Seat

The seat adjusts through a pneumatic-assisted rack-and-pinion mechanism, combining the ease of a gas spring adjustment with the positional rigidity of a toothed rack system. The pneumatic assist allows one-hand height changes with minimal force between sets. The rack-and-pinion engagement locks the seat at the selected height with zero movement under the overhead pressing load — which is the load direction that places the most vertical force on the seat structure during the press. A seat that shifts under load during overhead pressing changes the starting height mid-set, which disrupts the pressing arc and requires the user to compensate rather than focus on the deltoid contraction.
5.

Dynasty Flex-Stack System

The DRE8004 runs on the Dynasty Flex-Stack System, delivering a true 1:1 felt weight ratio through the full overhead press arc. The 5kg base weight combined with two 2.5kg micro-increment plates allows the working load to be adjusted in 2.5kg steps rather than the 5kg minimum increments that standard selectorized machines provide. Shoulder pressing is among the exercises where 5kg jumps are frequently too large to maintain clean technique, particularly in the mid-range of a training programme where strength increases are gradual. The 2.5kg increment allows progression at the rate the shoulder is actually developing strength rather than forcing jumps that compromise the press.
6.

Clump Weights and Elastic Latch Assembly

Two clump weights are attached to each arm frame to counterbalance the mechanical weight of the arms themselves, ensuring the resistance felt through the handles comes from the stack rather than from the mechanical weight of the unloaded arm frames. The elastic latch assembly manages the arm mechanism at the starting position, keeping the arms in the loaded starting position without requiring the user to hold against the weight of the unloaded arm structure when getting into position. Both components contribute to the clean, resistance-accurate feel of the machine that makes the Dynasty Flex-Stack 1:1 ratio possible.

Product Information
Product NameISO-Lateral Shoulder Press
ModelDRE8004
SeriesDRE80 Selectorized Series
Product TypeSelectorized ISO-Lateral Shoulder Press Machine
FunctionISO-lateral independent converging overhead press — bilateral and unilateral
Target MusclesAnterior Deltoid, Lateral Deltoid (primary), Triceps Brachii, Upper Trapezius (secondary)
Resistance SystemDynasty Flex-Stack System — 1:1 felt weight ratio
GradeCommercial
ColourBlack
Dimensions and Weight
Length66 in (167.5 cm)
Width57 in (144.4 cm)
Height63 in (160.2 cm)
Net Weight578 lbs (262 kg)
Weight Stack
Standard Weight Stack210 lbs
Upgraded Weight Stack250 lbs — contact Dynasty Fitness
Base Weight5 kg
Micro-Increment Plates2.5 kg x2
Arms and Handles
Arm DesignISO-lateral independent — left and right arm frames on separate converging paths
Standard Overhead Grips36×28×460mm x2 — full deltoid overhead press
Hammer Grips28×36×130mm x2 — anterior deltoid emphasis, reduced shoulder stress
Arm CounterweightsClump weights x2 per arm — balances mechanical arm weight for 1:1 felt ratio accuracy
Seat and Adjustability
Seat AdjustmentPneumatic rack-and-pinion — single-hand, zero movement under load
Backrest Positions5 positions
Adjustment OperationAll adjustments single-hand operable
Transport Wheels3 x built-in rolling wheels
Mechanism and Bearings
Pulleys4.5" pulley x4, 3.5" pulley x1, V-pulley x1
Bearings6205 x4, Joint Bearing M12 x2
Frame and Construction
Main Frame Tubing1.97"×5.9"×0.1" rectangular steel
Movement Arm TubingΦ2.4"×0.1"
Indoor Use OnlyYes

The Dynasty Fitness
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OUR COMMITMENT

Every machine that leaves Dynasty Fitness carries the same promise: it is built to the commercial standard that professional training environments demand, priced so that standard is no longer exclusive to them, and backed by the support and warranty coverage that a long-term training investment deserves.

We are committed to equipment that stands the test of time — and to making sure the people who train the hardest have access to the tools that match their effort.

214 Lincoln Blvd Unit A, Venice, CA

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We offer lifetime warranty on the frame and parts under proper use