• Description
  • Why Buy From Us

The Discovery™ Series Selectorized Line Rear Delt / Pec Fly features dual independent-movement arms with upper pivots to accommodate varying arm lengths. Each can be set to 13 starting positions over a 120-degree range. The weight is offset to the right for the most convenient access.

Multi-Purpose

This unit allows you to provide two traditional movements in one unit. Easy adjustment pins allow users to move between pec fly and rear delt movements seamlessly.

Pivoting Arms

The dual pivoting arms allow users of different arm lengths to comfortably perform each exercise while maintaining proper form.

Independent Movement Arms

Independent movement arms provide a variety of movements in one unit while increasing core activity.

Features

  • Weight Stack

  • Units have fully shrouded weight stacks in full compliance with ASTM and EN standards.

  • Each selector plate is entirely precision-machined on all surfaces. Top plate has replaceable precision self-lubricating bushings.

  • The plates feature a black-painted protective finish. Guide rods are precision centerless ground, polished, with corrosion-resistant plating for smooth operation and rust retardation.

  • The weight stack is elevated to facilitate user pin selection from the seated position.
    Upholstery

  • Premium-quality 3D urethane molded foam padding for maximum comfort. Fabric meets or exceeds California fire regulations (Bulletin 117, section E). Automotive-grade, two-textured fabric features double top stitching on all seams.

    Instructional Placard

  • Easy-to-understand exercise placards feature large set-up and start and finish position diagrams that are visibly easy to identify. QR codes provide quick and easy video instruction from your smartphone or Preva app.

    Bearings and Pivot Points

  • Oversized, linear, re-circulating ball bearings run on case-hardened shafts and are sealed and self-aligning. Pivot points and joints feature motor-grade sealed ball bearings or sleeve bearings, utilizing either oil-impregnated bronze bushings or pre-lubricated nylon bushings. Bolts are grade 5 or above in all applications.

    Pulleys and Cables

  • Glass-fiber-reinforced nylon pulleys for durability, with precision motor-grade ball-bearing pulleys. Cable consists of 3/16 inch (7"x19") aircraft cable coated with black pressure-extruded nylon to 1/4 inch or 1/8 inch and coated to 3/16 inch. The cables conform to specification MIL-W-83420D-BARE cable only. When used, redirection pulleys route cables close to frame to minimize chance of external interference.

    Frame and Finish

  • The frame is made of 11 gauge (.120 in) 2x4" electrowelded steel racetrack tubing. The movement arms are made of electrowelded steel round tubing. The five-stage material prep/wash process is followed by an electrostatically applied, heat-cured powder coat.

    General Features

  • Dual independent-movement arms feature upper pivots to accommodate arm lengths and can be set to 13 starting positions over a 120-degree range. The weight stack is offset to the user's right for the most convenient access.

    Equipment Specifications

  • Incremental Add-on Weight: 5 lbs (2.3 kg)

  • Weight Stack: 240 lbs (109 kg)

    Tech Specs

  • Dimensions (L x W x H): 54" x 56" x 84" (137cm x 142cm x 213cm)

  • Equipment Weight: 594 lbs (269 kg)

  • Shipping Weight: 655 lbs (297 kg)

 

Innovation and Reliability at Our Core

At Machine Horizon, we believe that powerful machines drive progress. Our mission is to make advanced technology accessible to creators, engineers, and businesses across industries—from precision CNC and milling to farming, printing, and laboratory equipment.

We’re dedicated to providing reliable, high-performance machines that help you produce, build, and innovate with confidence. Every product we offer is carefully selected for its engineering quality, efficiency, and long-term value.

A Customer-First Approach

We’re more than an online store—we’re your partner in finding the best machine for your need. Unlike large, impersonal retailers, our dedicated team delivers personalized guidance at every step. Whether you’re exploring, seeking expert advice, or need ongoing support, our specialists are always just a call or email away.

Passion for Machinery & Resilience


Our brand is built on a deep respect for craftsmanship, performance, and reliability. We understand how important the right equipment is to your success—that’s why we focus on machines that combine innovation with lasting durability. From small workshops to large production facilities, Machine Horizon provides solutions that help you work smarter, faster, and better.

Trusted Experts, Curated Brands


We partner directly with industry-leading manufacturers across multiple sectors to ensure every product meets our standards for quality and performance. Our curated selection means you can shop with confidence, knowing each machine is backed by expert support and full manufacturer warranties.

More Reasons to Choose Machine Horizon

  • Price Match Guarantee – We’ll match any competitor to ensure you always receive the best value.
  • Free Shipping – Enjoy free delivery on most* orders across the lower 48 U.S. states.
  • 100% Secure Ordering – Our platform uses SSL encryption to protect your information.
  • Exclusive Packages & Volume Discounts – Custom pricing available for workshops, labs, schools, and bulk orders.
  • Authorized Dealer – Every order is protected with full manufacturer support and warranties.


With Machine Horizon, you don’t just buy equipment—you invest in performance, precision, and long-term reliability

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.

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