Quinton/Stairmaster 510/612 Treadmills are one of the most durable lines of treadmills ever made.  Ideal for fitness centers, physical therapy and all commercial applications.

Speed range 1-12 mph in .1 mph increments.
Elevation range 0-15% in .5% increments.
20 in. x 60 in. running surface.
Two sided belt - Tripleflex deck.
2 hp AC Continuous drive motor.
Increased user weight capacity.
C-safe compatible.
Exercise programs - Manual, Count-Down Time, and Count-Up Time.


Specifications:

Height: 51.5 in. (131cm).
Length: 88 in. (224 cm).
Width: 31.5 in. (80 cm).
Weight: 360 lbs. (163 kg).
Walking/Running Area: 20 in. x 60 in. (51 x 152 cm).
Speed Range: 1.0 - 12 mph (1.6 - 16 kph).
Elevation: 0 - 15% grade.
Voltage: 115 volt, 20 amp dedicated electrical unit; 220 volt, 15-20 amp optional.