The 316 stainless steel honeycomb conveyor belt features a flat wire mesh structure welded with cross rods, delivering an 86% open area alongside high tensile strength. Fabricated from marine-grade 316 austenitic stainless steel, this belt resists pitting and crevice corrosion caused by chemical sanitizers, saline solutions, and organic acids. The flat conveying surface supports delicate parts without tipping, while the open grid layout allows unhindered airflow and liquid drainage during drying, cooling, and washing operations.
Structural Architecture
Flat Wire Strips: Cold-rolled 316 stainless steel with smooth edges to prevent product scratching and reduce friction against side guards.
Cross Rods: Straight transverse rods inserted through punched slots in the flat wires, distributing tension uniformly across the entire belt width.
Welded Edge Finishes: Welded rod ends secure the flat wire matrix, maintaining structural integrity under high cyclic loading and thermal expansion.
Performance Highlights
High Strength-to-Weight Ratio:
Engineered to carry heavy unit loads with a lightweight body, reducing drive motor energy consumption.
Maximum Open Area:
Up to 86% openness permits unrestricted circulation of hot air, steam, cooling gasses, and washdown water.
Corrosion Resistance:
Molybdenum-alloyed 316 grade withstands chlorides, sulfuric acid compounds, and aggressive sanitization chemicals.
Positive Drive Reliability:
Direct engagement with drive sprockets eliminates slippage and ensures precise timing synchronization.
Technical Specifications
|
Parameter |
Specification Range |
|
Material Grade |
AISI 316 / 316L |
|
Flat Wire Width |
12.7 mm to 25.4 mm |
|
Wire Thickness |
1.2 mm to 3.0 mm |
|
Rod Diameter |
3.0 mm to 8.0 mm |
|
Standard Pitch |
25.4 mm, 50.8 mm, 76.2 mm |
|
Belt Width |
200 mm to 4000 mm |
|
Temperature Limit |
-50°C to +650°C |
Metallurgy & Surface Treatment
Alloy Composition: 16-18% Chromium, 10-14% Nickel, 2-3% Molybdenum austenitic structure for intergranular corrosion prevention.
Surface Finish: Mill finish with passivated chemical treatment to remove free iron and accelerate chromium oxide layer formation.
Edge Hardening: Optional heat treatment on contact edges to minimize wear rates in abrasive conveying environments.
Aperture & Loop Configuration
Standard Aperture:
Configurations range from tight square patterns for small parts to wide rectangular grids for large trays and bulk materials.
Single vs. Double Loop:
Single loops suit standard loads, whereas double loops feature nested flat wires at connection points to increase load capacity and reduce local stress.
Width-to-Pitch Ratio:
Calibrated ratios ensure uniform load distribution across every transverse rod without center sagging.
Drive & Edge Configurations
Sprocket Drive: Precision-machined metal sprockets engage directly with belt cells for positive, slip-free tracking.
Button-Weld Edge: Rod ends fuse into smooth rounded buttons that retain belt width and protect conveyor frame walls.
Retaining Chain Edge: Integrated side roller chains attached to belt edges for heavy inclined conveying.
Upturned Edge Guards: Vertical flat wire side plates welded to edges to contain loose parts and prevent product roll-off.
Operational Characteristics
Thermal Stability:
Maintains structural dimensions and mechanical strength up to 650°C without significant creep.
Tension Tolerance:
High tensile yield strength accommodates long conveyor spans and multi-tier spiral configurations.
Cleaning Efficiency:
Open-mesh geometry permits clean-in-place high-pressure water jets to flush out debris rapidly.
Industrial Applications
Food Processing: Quick-freezing tunnels, continuous frying lines, steam cookers, drying ovens, and bakery cooling conveyors.
Industrial Manufacturing: Glass annealing lehrs, ceramic sintering furnaces, metal parts washers, and electronic component dryers.
Chemical & Packaging: Shrink-wrapping tunnels, corrosive chemical drainage lines, and material sorting tables.
Engineering Selection Guide
Determine Operating Temperature:
Verify peak and continuous limits to confirm alloy retention and thermal expansion allowances.
Calculate Load and Tension:
Measure total conveyed weight per unit area, belt speed, and span distance to determine required tensile strength.
Evaluate Environment:
Assess chemical exposure, moisture, and cleaning frequency to select appropriate grade stainless steel.
Match Sprocket Geometry:
Ensure drive sprockets match exact pitch and wire thickness to prevent premature tooth wear.
Customization
Custom Dimensions: Tailored belt widths, specific lengths, custom pitch sizes, and non-standard rod diameters built to drawing tolerances.
Special Attachments: Factory-welded flight bars, cross-flights, dividers, and side guards positioned per process requirements.
Drive Component Matching: Custom-bored driving sprockets, idle sprockets, and drive shafts supplied in matching 316 alloy.
FAQ
Q: What is the maximum operating temperature?
A: Continuous operation is supported up to 650°C, with load capacity decreasing gradually above 500°C.
Q: How does 316 differ from 304 grade?
A: Grade 316 contains 2% to 3% molybdenum, providing superior resistance to chlorides and acidic sanitation chemicals.
Q: Can these belts be used in spiral towers?
A: Yes, flexible lateral stability and high open area suit spiral cage systems when configured with proper edge constraints.
Q: What causes belt tracking issues?
A: Mis-tracking stems from uneven edge tension, worn sprockets, or debris buildup; positive sprocket engagement eliminates slip.
Q: What is required for a custom quote?
A: Provide belt width, overall length, pitch size, flat wire dimensions, rod diameter, operating temperature, and load weight.
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