Design and Structure
The Woven Rod Bar Belt is built on a heavy-duty loom from two wire elements: solid round weft wires that run transversely across the belt width (the visible "rod" or "bar" surface on which products rest), and stranded multi-wire warp cables that run longitudinally in the machine direction, carrying the tensile load across the conveyor length. These elements are woven together at each crossing point to create an open, dimensionally stable mesh that allows free passage of air, water, steam, or other process media — essential for through-air drying, dewatering, and IQF freezing operations.
The design is versatile, with two edge options:
Cut Edge: The belt is trimmed cleanly at the outermost warp cables. A cost-effective standard option for most conveyor configurations where edge loading is low to moderate.
Welded Edge (Reinforced): Weft wires are plasma-welded in groups of 2 or 3 at each edge, preventing wire migration and fraying during high-speed or heavy-load operation. Recommended for food processing lines and industrial dryers where edge integrity is a hygiene or maintenance requirement.
Material and Temperature Resistance
PFM Screen Woven Rod Bar Conveyor Belts are manufactured in two standard stainless steel grades:
SS304 (Standard Grade): The most widely specified grade for food processing, agricultural drying, baking, and industrial conveying. Suitable for continuous operation up to 400 °C. Excellent corrosion resistance in non-chloride environments, compatible with standard food-grade sanitising agents and steam cleaning.
SS316 (Marine Grade): Contains added molybdenum for superior resistance to chloride-based cleaning agents and high-salt processing environments. Recommended for seafood processing and IQF freezing lines, dairy processing, and any application involving aggressive sanitisation chemical cycles.
For applications exceeding 400 °C, heat-resistant alloy steel grades are available on request. All grades comply with food contact material regulations and are suitable for HACCP-certified food production facilities. Material certificates are available on request for food safety audits.
Standard Sizes and Customization
PFM Screen Woven Rod Bar Conveyor Belts are produced to order in the following configurable dimensions:
Belt Width: Any width up to 3,500 mm.
Warp Configuration: 1, 2, 3, or 4 warp wire ropes; additional warp cables increase tensile strength for wider belts and heavier loads.
Weft Wire Diameter: 1.5–2.5 mm (affects surface profile and open area). Warp Cable Pitch: 8.0–24.0 mm (determines mesh opening size and product support).
Edge Type: Cut edge or plasma-welded (reinforced) edge.
Material Grade: SS304 or SS316; heat-resistant alloy on request.
Joining Method: Pin-joint (open-end supply), endless seam, or staple fastener clipper.
Contact us at [email protected] with your conveyor width, belt speed, product type, and process temperature for a tailored specification and quotation.
Advantages of Woven Rod Bar Conveyor Belts
Open Mesh Construction: High open area allows efficient through-circulation of hot air, cold air, steam, or process fluids — critical for achieving uniform drying, baking, dewatering, and IQF freezing results across the full product bed width.
Longitudinal Tensile Strength: Stranded warp cables distribute belt tension across multiple wire strands, reducing the risk of stress fractures under heavy loads or in long conveyor runs — a key structural advantage over single-wire longitudinal designs.
Metal Fatigue Resistance: The belt's flexibility in the running direction absorbs repeated bending stress over small-diameter drive drums, extending belt service life at high operating speeds.
Temperature and Corrosion Resistance: Available in SS304 (rated to 400 °C) and SS316 (chloride-resistant); withstands steam cleaning, CIP chemical systems, and standard food-grade sanitising agents.
Configurable Specification: Weft wire diameter, warp cable pitch, belt width, edge type, and warp count can all be matched to process parameters — from narrow single-lane dryers to wide-format industrial drying lines up to 3,500 mm.
HACCP-Compatible Hygiene: The open stainless wire structure contains no porous materials, coatings, or fabric components that can harbour bacteria or mould between production runs; the mesh is fully accessible for visual inspection and cleaning.
Warp Configuration Variants
The Woven Rod Bar Conveyor Belt is woven from single round wires in the weft (transverse) direction, interlaced with one or more stranded wire ropes in the warp (machine direction) on a heavy-duty loom, forming square or rectangular mesh openings. Available in four warp-count configurations to match load requirements, belt width, and tensile strength specifications:
One warp wire rope
Two warp wire ropes
Three warp wire ropes
Four warp wire ropes
Edge Availability
The weft wires are plasma-welded into groups of 2 or 3, which prevents them from shifting and protects the edges from damage.
Joining Methods
Pin-Joint
This is the preferred joining method. The belt’s leading and trailing ends are designed with pre-formed loops, allowing a pin to be inserted through them. This system enables quick and easy assembly and disassembly directly on the machine.
Endless Seam
The belt is supplied as an endless loop, with warp cables interwoven to form a seamless join. This method is ideal for applications requiring consistent openings along the belt’s length. Since this joining requires the belt to be installed from the side, it necessitates a specially designed machine setup.
Staple Fastener Clipper
This joint uses staple fasteners, allowing quick and secure assembly of the belt. The clipper-style connection is durable and can withstand various applications, making it suitable for situations where the belt may need frequent assembly and disassembly.
Specifications
Stranded Warp Cable Diameter: 0.7 – 1.2 mm
Weft Wire Diameter: 1.5 – 2.5 mm
Weft Wire Gap: 1.0 – 3.0 mm
Warp Cable Gap: 8.0 – 24.0 mm
Note: The above are general belt data, special data can be customized.
The Woven Rod Bar Conveyor Belt is used across a broad range of drying, thermal processing, freezing, and dewatering applications. The open mesh surface allows free passage of hot air, cold air, water, or steam — enabling consistent, efficient process results with minimal product damage.
Food Drying and Dewatering: Vegetables, fruits, mushrooms, and seafood — the mesh supports gentle bulk product handling while allowing rapid moisture removal through the belt surface.
Pasta and Noodle Drying: Industry-standard belt for continuous pasta dryer lines. Smooth stainless weft wires prevent fresh pasta from sticking, while high open area enables precise through-air drying at controlled temperature and humidity.
Baking: Tunnel oven conveying for biscuits, bread, and snack products. Hot air circulates freely through and under the product for even bottom-heat and consistent baking results.
Fish and Seafood Freezing (IQF): The open mesh provides efficient cold-air circulation around each product piece in individual quick-freezing lines. SS316 grade provides the chloride resistance required in marine-environment processing plants.
Agricultural Drying: Green fodder, tobacco leaf, hops, and grain — suitable for large-scale bulk product drying where high throughput and consistent airflow across the belt width are critical.
Chemical and Industrial Processing: High-temperature drying and conveying of granular or pelletised materials in corrosive process environments, where robust corrosion-resistant steel and elevated temperature ratings are required.
Woven Rod Bar Conveyor Belts for Fish Freezing
Woven Rod Bar Conveyor Belts for Baking
Woven Rod Bar Conveyor Belts for Dewatering
Woven Rod Bar Conveyor Belts for Pasta Drying
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Woven Rod Bar Conveyor Belts
