HL-A28 Heavy-Duty Carbon Steel Sliding Window & Door Roller | Adjustable Wheel Assembly (Color Zinc Plated)

Short Description / Bullet Points

• High-Grade Material: Durable carbon steel housing engineered for solid load support and long service life.
• Corrosion Resistance: Premium color zinc-plated surface finish protects against rust and moisture.
• Precision Height Adjustment: Features a built-in vertical adjustment mechanism (±5mm) for perfect window/door alignment.
• Smooth & Quiet Gliding: Ø32mm precision wheel with R3.2 groove design ensures quiet, low-friction operation.
• Wide Application: Perfectly suited for aluminum sliding windows, doors, and patio sliding frame systems.

Product Overview

The HL-A28 Sliding Roller Assembly is designed to provide smooth, quiet, and reliable operation for aluminum sliding doors and windows. Built with a high-strength carbon steel body treated with a corrosion-resistant color zinc finish, this roller stands up to daily wear and changing climate conditions. Equipped with a built-in ±5mm height adjustment screw, it enables fast and easy alignment during installation to ensure effortless, balanced sliding across aluminum tracks.

Technical Specifications

Key Features & Benefits

• Flexible Height Adjustment (±5mm)

Allows installers to easily fine-tune panel height to overcome frame sagging or track unevenness, preventing binding.

• Durable Carbon Steel Frame

Rigid housing structure withstands structural pressure and heavy repetitive sliding without bending or warping.

• Color Zinc Protective Finish

Provides excellent weatherability and corrosion resistance for both indoor and outdoor sliding door/window applications.

• Optimized Track Compatibility

Features an 8mm (R3.2) groove profile designed to pair seamlessly with standard aluminum rail profiles for smooth movement.