QUANTUM SELECTORIZED BACK EXTENSION
💪 QUANTUM – SELECTORIZED LOWER BACK MACHINE
Quantum Selectorized Back Extension – Commercial lower back and posterior chain machine. Seated design with adjustable chest pad and foot plate for safe, controlled spinal erector and glute work. Silver frame with maroon pads.
New runs $2,500-$3,200+ – Grab this commercial unit and save thousands.
⚙ KEY FEATURES:
- ✔ Seated Design: Safer than 45° hyperextensions – locks you in, isolates lower back + glutes
- ✔ Adjustable Chest Pad: Multiple start positions for different torso lengths and range of motion
- ✔ Adjustable Foot Plate: Pop-pin foot plate locks in position for proper leverage and stability
- ✔ Selectorized Weight Stack: Quick pin-select weight changes – no plate loading needed
- ✔ Commercial Grade Build: Heavy steel frame, commercial cam + pulleys – built for clinics + gyms
- ✔ Compact Footprint: Dedicated lower back machine without the space of a roman chair
- ✔ Smooth Motion: Commercial bearings + coated cable – consistent resistance curve
- ✔ Posterior Chain Focus: Targets spinal erectors, glutes, hamstrings safely – rehab approved
- ✔ Controlled ROM: Cam-driven path limits hyperextension risk – perfect for beginners + PT
📏 TECHNICAL SPECIFICATIONS:
| QUANTUM BACK EXTENSION SPECS | |||
|---|---|---|---|
| Brand | Quantum | Type | Selectorized Commercial Back Extension / Lower Back |
| Position | Seated – posterior chain isolation | ||
| Weight Stack | Selectorized – 10-200+ lbs | Resistance | Cam + cable system |
| Chest Pad | Adjustable – multiple start positions for ROM | ||
| Foot Plate | Pop-pin adjustable for leverage + user height | ||
| Target Muscles | Spinal erectors, glutes, hamstrings | ||
| Footprint (L×W×H) | Approx 48" L × 36" W × 60" H | ||
| Unit Weight | ~400 lbs | ||
| Frame | Heavy-duty commercial steel – silver frame | ||
| Upholstery | Commercial grade vinyl – maroon pads | ||
🏋 CONDITION:
Good used commercial condition. Pulled from operating facility. Maroon upholstery is solid with normal wear. Silver frame shows light cosmetic scuffs from gym use – see photo.
Cable, pulleys, cam, and weight stack operate smoothly. Selector pin included. Ready to train.
Only 1 available.
💳 PAYMENT:
Cash, Credit Card, PayPal, Venmo, Apple Pay
NO HOLDS – If it’s up, we’ve got it.
Pickup, Shipping & Store Info
📍 Lancaster, PA 17601 | QUANTUM BACK EXTENSION
✓ Local pickup available – bring truck/trailer + help. Unit weighs ~400 lbs.
🚛 Shipping + delivery available – freight quote based on location. Ships on pallet.
After we receive your purchase, allow 5-10 business days for scheduling and servicing.
