Brushless motorized roller SR

48 Vfor heavy loadsdirect current

Product summary

• Motor type: Brushless motor
• Diameter of roller: 66 mm
• Input voltage: DC48±10%
• Working system: S1/S2
• Speed range: 300–1,050 rpm
• Cooling method: self-cooling

Overview
Engineered for durability and corrosion resistance, SR Rollers with a zinc-plated steel surface combine a solid steel core and a protective zinc layer that resists rust, chemicals and mechanical wear. The zinc finish can be applied by electroplating or hot-dip galvanizing depending on application needs, ensuring uniform coverage and strong adhesion for outdoor, wet and heavy-load environments.

Features

• Superior corrosion resistance: Zinc plating acts as a sacrificial layer protecting the steel core even when scratched. Hot-dip galvanizing provides a thicker zinc layer (typically 85–120 μm) versus electroplating (20–30 μm), extending protection in aggressive conditions.
• High mechanical strength: Steel core tensile strength up to 600 MPa enables handling of heavy loads (exceeding 500 kg per linear meter) for industrial conveying of bulky items.
• Temperature and impact resistance: Zinc-plated surfaces maintain integrity from -40°C to +200°C and absorb impacts and shocks, reducing deformation risk in high-vibration settings.
• Precision machining: Each roller is machined for concentricity and smooth rotation with surface roughness Ra ≤ 1.6 μm to minimize noise and vibration—critical for automated lines.
• Customizable surface finishes: Optional post-treatments such as passivation or powder coating are available to enhance corrosion resistance or meet industry/aesthetic requirements (e.g., ISO 1461 for hot-dip galvanizing).

Applications

• Construction and mining: conveyor systems for aggregates, cement, steel beams and ore in harsh outdoor conditions.
• Maritime and port logistics: cargo handling, container terminal conveyors and shipboard material transport in saltwater and high-humidity atmospheres.
• Heavy machinery manufacturing: assembly lines moving large metal components for agricultural or construction equipment.
• Waste and water treatment: sludge conveyors, screening machines and sedimentation systems exposed to chemicals and moisture.
• Outdoor storage and logistics: open-air conveyors and warehouses subject to sunlight, rain and temperature fluctuations.

FAQ

• Q: What is the difference between electroplated and hot-dip galvanized zinc coatings? A: Electroplating provides a thinner, more uniform coating suited to moderate corrosion environments; hot-dip galvanizing produces a thicker, more robust coating for severe conditions. Selection depends on corrosion risk and load profile.
• Q: Can zinc-plated rollers be used in food processing? A: Zinc is generally non-toxic but direct food contact is not recommended due to potential galvanic reactions with certain acids; for food-grade applications, apply additional food-safe coatings over the zinc layer.
• Q: How do I prevent galvanic corrosion with aluminum components? A: Use insulation between zinc-plated steel and aluminum (non-conductive spacers or coatings) and inspect for moisture accumulation.
• Q: What is the expected service life in a coastal environment? A: With proper maintenance, hot-dip galvanized rollers can last 15–20 years in coastal areas; electroplated rollers typically last 5–8 years under similar conditions.
• Q: Can these rollers be painted for additional protection? A: Yes—apply an appropriate primer to the zinc-plated surface to improve paint adhesion for custom finishes or added protective layers.

Technical specifications

• Model / Series: SR Rollers
• Motor type: Brushless motor
• Roller diameter: 66 mm
• Input voltage: DC 48 ±10%
• Working system: S1 / S2
• Speed range: 300–1,050 rpm
• Cooling method: Self-cooling
• Surface roughness: Ra ≤ 1.6 μm
• Steel tensile strength (core): up to 600 MPa
• Load capacity: >500 kg per linear meter (application dependent)
• Operating temperature range: -40°C to +200°C
• Zinc coating thickness (typical): hot-dip 85–120 μm; electroplated 20–30 μm
• Optional finishes: passivation, powder coating; can meet ISO 1461 for hot-dip galvanizing