Flexible Flat Conveyor Belts and Enrober Belt

Flexible Flat conveyor belts use interlinked formed wire strands to carry products through food-processing and light industrial processes. The range on this page includes Standard, Reinforced, Chain Edge and Turn Curve constructions. Enrober describes a coating application; Single Loop describes an edge type.

• Chocolate enrobing: The open mesh allows excess chocolate to drain beneath the product.
• Pizza oven conveying: A flat carrying surface and open mesh support product transfer and airflow.
• Baking and frying: Open area of up to 85%, depending on specification, supports heat transfer and drainage.
• Industrial freezing: Select the belt and components for the actual blast-freezer or cryogenic process conditions.
• Fruit and vegetable washing: Water drains through the open structure.

PFM SCREEN offers SS304 and SS316 options, custom widths from 10 mm to 3 meters according to belt construction, and matching sprockets. Confirm dimensions and operating conditions when ordering.

Single loop edge is a common general-purpose finish used in food conveying, baking and frying. Each wire end forms a single edge loop.

Double loop edge uses an additional return loop and is commonly specified for enrober machines. It must match the machine and drive arrangement; it is not a raised side guard for retaining products.

C-shaped edge uses a shaped return intended to reduce edge catching and tangling on compatible specifications. Match the actual edge geometry to the drawing and drive arrangement.

Standard belts list C-shaped, Single Loop and Double Loop options, subject to the individual mesh specification. Reinforced belts list C-shaped and Single Loop options. Chain Edge belts use side chains. The Turn Curve drawing shows Single Loop edges; confirm any other edge requirement against the belt layout.

The Edge Types section explains each construction. Use the availability shown under the corresponding belt type and the standard specification table when selecting an edge.

Selected specifications reach up to 85% open area. The Standard belt table lists values from 67% to 85%. The value depends on wire diameter, pitch and mesh arrangement; do not apply the Standard table percentages to every Reinforced, Chain Edge or Turn Curve configuration.

• Airflow: The open mesh allows air to reach products from below during heating, cooling and freezing.
• Drainage: Water, oil and excess coating can pass through the belt.
• Low belt mass: The open construction reduces the mass that the drive must move.

Select a mesh that balances product support with the required airflow and drainage.

Yes. Suitable flexible flat wire belts are used in conveyor pizza ovens and continuous baking tunnels. Replacement compatibility must be checked against the individual oven, including impingement and other conveyor-oven designs.

• Temperature: Confirm the actual belt temperature, load and exposure time. A wire-material temperature figure does not establish the rating of the complete belt or drive system.
• Air circulation: The open mesh allows hot air to reach the underside of the product.
• Product support: Match pitch, belt width and transfer geometry to the pizza base and actual conveyor speed.
• Cleaning: Use a cleaning procedure compatible with the wire grade, oven and drive components; confirm steam-cleaning suitability where required.

For replacement enquiries, send the oven make and model, for example Lincoln or Fiero, together with the belt dimensions, pitch, wire diameter and photos. PFM SCREEN can review requirements for replacement and OEM applications.

Yes. Enrober belts are used to carry products through chocolate, icing and other coating processes. Select the belt specification to suit the enrober, product size and coating conditions.

• Open mesh: Allows excess chocolate to drain for collection beneath the belt.
• Edge configuration: Single-loop, double-loop or C-shaped options must suit the machine; edge loops do not replace side guides.
• Product release: Release depends on the coating temperature, setting conditions and wire surface cleanliness. Stainless steel alone does not guarantee non-stick performance.
• Vibration: Confirm compatibility with the enrober vibration arrangement and operating settings.

Matching sprockets and custom widths up to 3 meters are available subject to the selected construction. Confirm delivery time with the quotation rather than assuming a fixed lead time.

SS304 is the standard stainless grade for many baking, enrobing, frying, freezing and general food-processing applications. Confirm temperature and cleaning conditions for the selected belt.

SS316 contains molybdenum and generally offers better resistance to chloride-related corrosion than SS304. It can be considered for seafood, dairy, meat and acidic-product environments, subject to the actual chemical concentration, temperature and exposure time.

The material table also lists SS316L and carbon steel. Request other grades for review. Food-contact suitability depends on the supplied material and intended use; specify the required documentation and hygiene requirements when requesting a quotation.

For a Chain Edge belt, specify the mesh material and chain material separately on the enquiry form.

The joining method depends on belt construction, wire diameter, pitch, space pattern and edge configuration. Common wire-mesh joining methods include:

• Full-strand joining: Weave a correctly matched joining strand through both belt ends, following the single-loop or double-loop procedure.
• Joining clips: Use compatible clips in the specified belt spaces and close the loops according to the joining instructions.
• Steel connecting tubes: Join appropriate wire sections with matching tubes. Keep tubes clear of the spaces engaged by sprocket teeth.

Confirm the joining procedure, required tools and whether the joint can be made on the conveyor. Proprietary joining components require a compatibility check. Agree open-end or pre-joined endless supply when ordering, and confirm any proposed welded joint before manufacture. For Chain Edge belts, also confirm the chain connection against the chain designation and assembly drawing.

• Flexible Flat Conveyor Belt Endless Connection with Steel Tube
• Flexible Flat Conveyor Belt Single Loop Edge Installing Joining Clip Method
• Flexible Flat Conveyor Belt Double Loop Edge Using Full Strand Joining Method
• Flexible Flat Conveyor Belt Single Loop Edge Using Full Strand Joining Method

Flexible flat stainless steel belts can support a HACCP-based food safety system through accessible cleaning and inspection. HACCP applies to the production process and its controls; a belt alone does not make a production line compliant.

• Material: Specify a suitable stainless grade and request the relevant material or food-contact documentation.
• Cleaning and inspection: The open wire structure provides access for residue removal and inspection for damaged wires or foreign material.
• Sanitation: Validate detergent concentration, temperature, contact time and rinsing. Confirm compatibility before using steam or CIP procedures.
• Construction: The metal belt has no fabric carrying layer, but joints, supports and drive components still require an effective cleaning procedure.

SS316 may be considered where greater chloride resistance is needed, but aggressive cleaning chemicals must be assessed individually. Request material certification documents for your food safety review.

Use the form for the actual belt construction. Refer to its own drawing when entering dimensions:

• Standard Flexible Flat Wire Conveyor Belts Enquiry Form (PDF)
• Reinforced Flexible Flat Wire Conveyor Belts Enquiry Form (PDF)
• Flexible Flat Wire Conveyor Belts with Chain Edge Enquiry Form (PDF)
• Flat Flex Turn Curve Conveyor Belt Enquiry Form (PDF)

Include both space widths and counts for Reinforced belts; separate mesh and chain materials plus the optional chain designation for Chain Edge belts; and the radii, pitches, angle and direction for Turn Curve belts. Send photos or a drawing if any measurement is uncertain.

The Standard belt enquiry form includes optional Single Picket, Double Picket, Bar Flight and Tapered Bar Flight profiles. Select No flights (flat belt) when flights are not required.

For a flight enquiry, provide the height or depth, repeat pitch along the belt, row spacing and number of rows across the belt, arrangement, and flight width or other dimensions. Attach a sketch showing the profile and positions. The requested dimensions and conveyor compatibility must be confirmed for the design.