Gravity Roller

Longwei Gravity Rollers  (or non-powered conveyor roller) is a type of conveyor system component that moves flat-bottom goods or materials using the force of gravity or manual pushing. Engineered for conveyor systems requiring zero external power source. These rollers are commonly used in material handling applications where simplicity, cost-efficiency, and low maintenance are priorities.

Core Advantages

• Cost-efficient operation: Zero electrical consumption with maintenance-free design

• Heavy-load capacity: Supports 5–5,000 kg loads (industry-specific configurations)

• Modular integration: Fully compatible with belt/chain/powered roller conveyors

• Environmental resilience: Available in stainless steel (IP69K), carbon steel, and PVC-coated variants

Application Configurations

Technical Notes

• Material Options: carbon steel (galvanized), 304 stainless steel (food-grade), Aluminum,  PVC

• Temperature Range: -20°C to 80°C (standard configurations)

• Customization: Anti-static coatings, brake mechanisms, and curvature options available

Industry Application

Loading & Unloading Areas

• Dock Areas: Used for loading/unloading trucks where packages or pallets slide smoothly from the truck to the warehouse.

• Shipping & Receiving: Facilitates the movement of goods between transport vehicles and storage areas.

Assembly Lines & Production

• Manufacturing: Allows workers to manually push products along the line for assembly, inspection, or packaging.

• Workstations: Used in workbenches for easy part movement between stations.

E-Commerce & Logistics Fulfillment

Core Challenges: High-volume parcel sorting (<2 min/piece), carton jamming at curves, 24/7 operational reliability. 

Security & Compliance:

Physical: Tamper-evident packaging, GPS-tracked vehicles, facility access control via biometric scanners.

Cyber: Encrypted data transmission (AES-256) for order details, DLP systems to prevent shipment data leaks.

Warehousing & Distribution

• Order Picking: Enables workers to move cartons or bins easily in picking zones.

• Sortation Systems: Often integrated with slight declines to let items roll toward sorting zones.

Automotive Manufacturing

Core Challenges: Heavy engine/transmission handling (500–5,000kg), precision assembly line timing, electrostatic discharge (ESD) risks.

Safety & Efficiency:

Load Management: Dual-chain drives + overload sensors (auto-shutdown at 110% capacity).

Worker Safety: Laser scanners for intrusion detection near robotic cells.

Retail & Packaging

• Checkout Lines: Used in some retail backrooms for moving stocked items.

• Packaging Lines: Helps in moving packaged goods to palletizing or storage areas

Food & Beverage Industry

• Case Handling: Moves boxes or crates in food processing plants (often using stainless steel rollers for hygiene).

Considerations

• Requires a slight decline (typically 1.5°–5°) for smooth movement.

• Not ideal for heavy or fragile items that may roll uncontrollably.

• May need braking rollers or stops for controlled deceleration.