System 4 Reels From Scientific Anglers

October 3, 2012 By: Erin Block

New from Scientific Anglers is the System 4 reel series. Crafted in Montrose, Colorado, these reels are designed with a large arbor and maintenance-free drag system, and can be used for salt as well as freshwater fishing.  Coming in three different sizes for 3- to 8-weight lines, the System 4 reels are currently available.

Read the full press release in the extended entry.

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Scientific Anglers is pleased to announce the release of the NEW System 4 reel series. Adding to the long heritage of System reels, the System 4 is the first USA made reel for Scientific Anglers. It is CNC machined from 6061-T6 aluminum at our facility in Montrose, Colorado, and features a large arbor design for quick line pick up and updated cosmetics versus past System reels.

The System 4 comes in 3 different sizes – rated for 3-8 weight lines, features a Derlin 500AF maintenance-free drag system, and is also saltwater compatible.

Frame & Spool:

  • 6061-T6 propietary aluminum alloy


  • Derlin 500 AF with impregnated Teflon – space-age polymer that is durable, heat resistant, self-lubricating and maintenance free
  • Derlin 500AF to anodized aluminum interface – push frame friction disc drag system with redundancy radial pawl engagement and seamless transition between line-in and drag engagement (no startup friction)

Manufacturing Specifications:

  • Fully machined, 1 piece frame, 1 piece spool with a Derlin pressed hub – manufactured on automated CNC machining centers

Spool Rotation, Connection and Conversion:

  • Derlin hub rotating on a stainless steel spindle (Sizes 1-3), oil impregnated bronze bushing rotating on a stainless steel spindle (Sizes 4-7), quick release locking spool, easy left-hand to right-hand retrieve conversion.
4-Mar 1.0” 3.125” 5.22 oz WF3+75
6-May 1.0” 3.5” 5.44 oz WF5+125
8-Jul 1.15” 3.75” 6.04 oz WF7+200