The SportsArt DF-300 combines leg extension and seated leg curl into one beautifully engineered machine. A unique direct drive dual-cam system provides precise resistance for both movements, easy transition between exercises, and a 220 lb weight stack with 11 lb increments — all in a compact Performance Series footprint built for serious commercial use.
Function 2-In-1 | Weight Stack 220 lb | Increments 11 lb | Capacity 500 lb | Starting Weight 13 lb Each |
The DF-300 combines leg extension for quadricep development and seated leg curl for hamstring training in a single machine — two opposing lower body movements that are most effectively trained together for balanced leg strength. One footprint, two complete lower body exercises, with an easy transition between them that keeps workouts moving.
SportsArt's unique direct drive system uses two opposing cams — one for extension, one for curl — eliminating cable slack and delivering precise, consistent resistance throughout the full range of motion for both exercises. Less cable-slop means a more controlled, higher-quality rep and faster changeover between movements.
The transition from leg extension to seated leg curl is fast and intuitive — designed to minimize downtime between exercises in busy commercial environments. Users can move from quads to hamstrings without resetting the weight stack, repositioning to a different machine, or waiting for another user to finish on a separate station.
Both the seat back and leg pads adjust independently to accommodate users of different heights and limb lengths — correctly positioning the knee over the axis of rotation for both exercises. Proper alignment is critical for effective muscle isolation and joint safety on leg extension and curl movements.
A 220 lb weight stack with 11 lb plate increments (20 plates × 11 lb) accommodates the full range from rehabilitation loads starting at 13 lb all the way to serious progressive overload. The 500 lb user capacity and 495 lb unit weight confirm this is a commercial-grade machine built to handle heavy use year after year.
Weight Stack 220 lb (20 × 11 lb) | Starting Weight 13 lb (Ext & Curl) | Max User Weight 500 lb |
Drive System Direct Drive Dual-Cam | Unit Weight 495 lb | Dimensions 53.1" L × 39.8" W × 64" H |
Professional delivery and full in-home assembly included on all purchases across Texas. Our team sets everything up and tests it before leaving.
If you find this product at a lower price anywhere else, we'll match or beat it — no hassle, no questions asked.
HEST provides ongoing parts, service, and maintenance support for everything we sell — long after your purchase date.
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