
The HL-A33 Sliding Roller Assembly is engineered to deliver high load capacity and seamless operation for aluminum sliding doors and windows. Constructed from heavy-duty carbon steel and treated with a protective color zinc plating, this assembly withstands daily wear and environmental exposure. With its wide vertical adjustment range of 37 mm to 52.5 mm, installers can easily level and adjust sliding panels to correct track misalignment, ensuring effortless, bind-free sliding performance.
Item / Feature |
Details (Metric & Imperial) |
Model Number |
HL-A33 |
Main Material |
Carbon Steel |
Finish / Surface Treatment |
Color Zinc Plated / Yellow Zinc Plated |
Application |
Aluminum Sliding Windows & Doors |
Wheel Outer Diameter |
Ø38.00 mm [1.496 in] |
Overall Housing Length |
68.40 mm [2.693 in] (Inner Body: 57.20 mm [2.252 in]) |
Overall Housing Height |
51.60 mm [2.031 in] (Inner Height: 43.40 mm [1.709 in]) |
Housing Width |
14.60 mm [0.575 in] (Max Width: 17.76 mm [0.699 in]) |
Top Tab Width / Hole Ø |
10.00 mm [0.394 in] / Ø5.00 mm [0.197 in] |
Groove Width |
8.20 mm [0.323 in] |
Groove Radius |
R3.20 |
Height Adjustability Range |
37.00 mm – 52.50 mm (Nominal: 40.50 mm) |
Provides a wide adjustment margin to correct panel sag and track irregularities, preventing door jamming and uneven wear.
Heavy-gauge steel body provides solid structural integrity under heavy loads and frequent daily sliding cycles.
Delivers effective anti-corrosion and weather-resistant properties, suitable for both interior and exterior sliding applications.
The 8.20 mm (R3.20) groove design runs smoothly along standard aluminum rail profiles, reducing friction and noise.
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