HL004 Series Professional Sliding Window Roller

HL004 Series Professional Sliding Window Roller

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Product Description

Packaging & Delivery

Product Description

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Packaging & Delivery

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Product Description

Commercial Load Dynamics

HL004 Series
Commercial
HD Tandem

The industrial standard for heavy-span sliding systems. Supporting 250kg loads for the Luoqi Door Systems elite commercial portfolio.

250KG Commercial Grade

Premium Hardware Solutions

Industrial Precision
Silent Strength

The HL004 Series Professional Heavy-Duty Roller is designed for the rigorous demands of commercial storefronts and luxury large-format residential doors. When sash weights exceed 200kg, standard residential rollers suffer from bearing heat and tire deformation. The HL004 utilizes an Oversized Tandem Chassis with reinforced internal bracing to maintain structural geometric integrity under massive vertical pressure.

At Luoqi Door Systems, we have integrated a proprietary Steel-Cored POM Wheel in the HL004. This hybrid approach combines the compressive strength of a steel core with the acoustic dampening and low-friction properties of high-density POM. The result is a roller that can handle extreme loads while maintaining the whisper-quiet operation expected of **Premium Hardware Solutions**.

Equipped with a micro-adjustable leveling system, the HL004 allows contractors to align massive glass panels with surgical precision, ensuring the integrity of the weather-seals and the smoothness of the locking mechanism in **Aluminum Alloy Hardware** systems.

Engineering Matrix

◈ Bearing Class: Industrial ABEC-9
◈ Wheel Core: Forged Carbon Steel
◈ Load Rating: 250kg / pair
◈ Shell Tech: SUS304 High-Tensile
◈ Salt Spray: Grade 5 (1000 hrs+)
◈ Temp Range: -35°C to +95°C

Technical Capacity Mapping

Model Reference	Shell Width	Wheel Dia	Height Adj.	Static Load	Application
HL004-C20	20.2mm	28mm	+10mm	220kg	Heavy Patio
HL004-C22	22.5mm	32mm	+12mm	250kg	Commercial Door
HL004-XT	24.0mm	35mm	+15mm	280kg+	Storefront HD

◈ Hybrid Core Technology

By bonding a high-density POM tire over a precision-forged steel center, the HL004 eliminates "flat-spotting" even when the heavy door remains stationary for long periods, a common issue with pure polymer wheels.

◈ Dual-Shield Bearing Protection

Commercial environments are subject to high levels of dust and grit. Each HL004 tandem unit is double-shielded with rubber seals and pre-packed with high-pressure synthetic grease to ensure zero maintenance.

◈ Rocker-Arm Suspension

The integrated rocker mechanism compensates for building floor deviations and track misalignments, distributing weight perfectly between the tandem wheels to prevent single-wheel overload and track failure.

Commercial Customization

For projects requiring specific track geometry, we offer custom-profiled wheels (V, U, or Y-groove) in various stainless steel grades including SUS316 for offshore applications.

Global Certification

The HL004 is certified to European EN13126 standards and North American AAMA 906, guaranteeing performance consistency for Luoqi Door Systems international specifications.