Harmar stairlifts are best known for their patented helical worm gear drive system, which sets them apart from competitors who use traditional rack-and-pinion systems.
The nylon polymer gear system requires no grease or oil. This keeps your stairs, clothes, and pets clean while reducing long-term maintenance needs.
The Pinnacle series has a folded width of only 10.5 inches, making it the narrowest stairlift on the market. This leaves maximum room for others to walk up and down the stairs safely.
While the standard SL300 handles 300 lbs, the SL600HD is a heavy-duty powerhouse supporting up to 600 lbs—the highest capacity in the industry.
The lifts run on 24V DC batteries that "trickle charge" at the top or bottom of the rail. This ensures the lift works during a power outage (up to 40–60 trips depending on the model).
Sensors on the footrest and chassis automatically stop the lift if they encounter an obstruction (like a laundry basket or a pet) on the stairs.
The unique gear design eliminates the "clunking" or jarring starts and stops found in cheaper models, providing a very stable, vibration-free experience.
Because the drive system has fewer moving parts and no messy lubricants to attract dust, Harmar lifts generally have a longer lifespan with fewer service calls.
The motor uses very little power, and the battery-first design means it won't spike your electric bill.
Features like swivel seats (manual or power) and folding arms/footrests allow for safe entry and exit without straining your back or knees.
Between the modular "UP" curved lift for fast installs and the custom "Helix" for complex stairs, they can fit almost any architectural layout.

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