Pectoral fly/rear deltoid | SA003

FAQ – Pectoral Fly / Rear Deltoid | APUS SA003 (Pin-Selected weight stack machine)

Which muscle groups are targeted by the APUS Pectoral Fly / Rear Deltoid dual-function machine?

This dual-function machine targets two opposing upper-body muscle groups. In the forward-facing position (Pectoral Fly), it isolates the chest muscles (primarily pectoralis major). By adjusting the arm angles and facing the backrest (Rear Deltoid / Reverse Fly), resistance is shifted to the posterior deltoids (rear shoulders), trapezius, and rhomboids.

How do you transition between the chest fly and rear deltoid exercises?

Transitioning between exercises is seamless and tool-free. Users simply release the overhead pop-pin mechanism to adjust the starting arm positions (inward for chest flyes, outward/rearward for rear deltoids) and adjust their body position against the pad — using it as a backrest for chest work or a chest support for rear delt flyes.

What adjustability and ergonomic features does this machine provide?

The machine features a multi-position gas-assisted seat height adjustment, aligning the user's shoulder joints precisely with the rotational axis regardless of height. Self-pivoting articulation arms with dual-grip handles automatically adjust to varying arm lengths and natural wrist angles during the movement.

What space-saving and commercial (B2B) advantages does this dual-function machine offer?

As a 2-in-1 combo unit, the Pectoral Fly / Rear Deltoid machine saves up to 50% of floor space compared to two standalone units. Its heavy-duty commercial steel frame, fully enclosed weight stack shroud, and wear/sweat-resistant upholstery make it an ideal solution for high-traffic fitness clubs, boutique studios, and hotel wellness centers.

How much space should be allocated for installation and the safety zone?

The machine itself occupies a compact footprint of approximately 1.5–2 m². We recommend allowing a clear operational and safety clearance zone of at least 2.2 m × 1.8 m to accommodate the full range of motion of the articulating arms and ensure comfortable access to the weight stack.

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