Manufacturing and logistics operations depend on conveyor equipment to move raw materials, work-in-progress components, and finished products from one process step to the next with minimal manual handling. The right conveyor system can determine whether a production line operates at full capacity or bogs down with bottlenecks. Beyond simple point-to-point movement, modern conveyor equipment integrates with quality control stations, sorting systems, and automated storage and retrieval systems to form the backbone of mechanized material flow in facilities ranging from parcel distribution centers to semiconductor fabrication plants.

Belt Conveyors

Belt conveyors represent the most widely deployed conveyor type across industries because they handle an exceptionally broad range of products while operating smoothly at both low and high speeds. A continuous rubber belt, typically 300 to 1,200 millimeters wide, rides on sliding rollers or a low-friction polymer slider bed, driven by an electric motor through a gearbox that provides the torque multiplication needed to move heavy loads. The belt material selection matters considerably: general-purpose rubber handles packages and boxed goods effectively, but food-grade PVC or polyurethane belts meet hygiene requirements for pharmaceutical and food processing applications, while heat-resistant belts withstand oven and foundry environments exceeding 200 degrees Celsius.

The load capacity of a belt conveyor depends primarily on belt width, speed, and the angle of the conveyor to horizontal, with standard industrial belt widths of 600, 800, and 1,000 millimeters supporting maximum loads of 100, 150, and 200 kilograms per meter respectively at conveyor inclines below 20 degrees. Reversible conveyors with drives at both ends allow product flow in either direction, useful for warehouses that need to switch between receiving and shipping modes. Variable speed drives enable smooth acceleration and deceleration that prevents product from sliding or toppling during startup and shutdown sequences, particularly important for packages on incline conveyors where sudden speed changes can cause load shifts.

Roller Conveyors

Roller conveyors work by having closely spaced rotating cylinders bear the load, reducing friction compared to belt conveyors for appropriate product types. Gravity roller conveyors use the slight downhill slope of the conveyor frame to let products roll under their own weight, with typical gradients of 2 to 5 degrees providing sufficient acceleration to overcome bearing friction. The absence of a continuous belt means lighter products can fit between rollers, allowing conveyed items to be pushed sideways off the conveyor line for sorting without the complexity of belt-tracking mechanisms. Standard roller diameters of 50, 60, and 90 millimeters accommodate loads from 5 kilograms per roller for lightweight packages up to 500 kilograms per roller for heavy pallet loads.

Accumulation roller conveyors add the capability to store products in-line without stopping the upstream flow, using sensors and zoning logic to selectively stop rollers and create dense product queues during peak demand periods. Zero-pressure accumulation zones maintain minimum gaps between packages, preventing the scuffing and crushing damage that occurs when packages push directly against each other during backlogs. The zone length and number of zones determine the total accumulation capacity, with typical systems storing 10 to 30 meters of product before upstream sections must pause.

Chain and Modular Belt Conveyors

Chain conveyors use one or more strands of roller chain running over sprockets to transmit force to the load, making them suitable for products that require firm lateral constraint and for operation in environments where belt materials would degrade. Tabletop chain conveyors with a single strand of chains running down the center of the conveyor frame work well for bottles, cans, and other cylindrical products that self-center against the chain guides. Twin-strand chain conveyors with chains on both edges of the conveyor frame handle wider products like automotive engine blocks and appliance cabinets, with the twin-strand configuration providing better side-to-side stability at high speeds.

Plastic modular belt conveyors replace the continuous belt with interlocking plastic segments that form a continuous conveying surface. The snap-together construction allows belt replacement in minutes without special tools, and the open hinge areas between segments permit drainage and airflow that matters for food processing applications where washdown water or cooling air needs to reach the product bottom. Modular belts operate effectively at speeds up to 60 meters per minute, comparable to rubber belt conveyors, while the plastic construction tolerates acidic or alkaline washdown chemicals that would degrade rubber belts.

Sortation Systems

High-speed sortation conveyors use a combination of mechanical diverts and belt acceleration to redirect packages from a mainline conveyor into separate chutes or branch lines. A typical cross-belt sorter uses a series of small belts mounted on a moving chain, with each small belt picking up a product when it aligns in a sorting position and then accelerating sideways to drop the product into the correct branch. Sort rates of 100 to 180 products per minute per lane make cross-belt sorters common in parcel distribution and e-commerce fulfillment, where sortation throughput determines overall facility capacity.

Narrow-band shoe sorters use mechanical shoes that slide across the conveyor surface to push products sideways into narrow chutes, operating at lower cost than cross-belt systems for sort rates below 80 products per minute. The shoe mechanism requires packages to have sufficient friction with the conveyor belt to be pushed without slipping, making flat-sided cartons more suitable than cylindrical packages. The working width of shoe sorters typically ranges from 600 to 1,200 millimeters, with divert angles of 20 to 45 degrees determining the minimum spacing between packages that the sorter requires.