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CNC Machined Nylon Conveyor Roller for Industrial Automation and Material Handling Systems

CNC Machined Nylon Conveyor Roller for Industrial Automation and Material Handling Systems

Detailinformatie
Materiaalopties:
Nylon 6/6 (PA66), Nylon 6 (PA6), Delrin/Acetaal (POM), UHMW-PE
Diameterbereik:
20 mm - 150 mm
Lengtebereik:
50 mm - 1.200 mm
Boring opties:
Glijlager, lagerzitting (H7), spieboring, stelschroef plat
Tolerantie:
+/-0,025 mm (diameter), +/-0,05 mm (lengte), 0,05 mm TIR (slingering)
Oppervlakteafwerking:
Ra 1,6-3,2 (roloppervlak), Ra 0,8 (lagerzittingen)
Productbeschrijving
CNC Machined Nylon Conveyor Roller

Steel rollers are heavy, prone to rust, and create maintenance headaches during replacement. Nylon conveyor rollers solve these issues while being more cost-effective. However, machining nylon requires specialized expertise as it deflects, absorbs coolant, and requires specific cutter geometries to avoid melting and ensure clean results.

Nylon 6/6 (PA66) is the standard material for conveyor rollers, offering toughness, excellent wear resistance against steel frames, and continuous operation up to 80°C. For food processing or wet environments, we recommend Delrin/Acetal since nylon absorbs moisture and swells - a 50.00mm dry roller can become 50.08mm after washdown, potentially causing belt tracking issues.

Maintaining concentricity is critical for conveyor rollers. Our between-centers turning process with live tailstock support ensures 300mm rollers maintain concentricity within 0.05mm, eliminating vibration that damages conveyor belts. Cycle time for a 300mm nylon roller is approximately 4 minutes.

Nylon rollers often operate quieter than steel, but surface finish optimization is crucial. We target Ra 1.6-3.2 on rolling surfaces for proper belt traction without abrasion, and can add custom groove patterns for specific grip requirements.

Key Features
  • Nylon 6/6 (PA66): High wear resistance, low friction coefficient, and impact toughness suitable for heavy loads and continuous operation
  • Delrin Option Available: For moisture-critical environments where nylon's water absorption would cause dimensional instability
  • Concentricity Control: Turned between centers with live tailstock, total runout within 0.05mm on rollers up to 600mm length
  • Bearing Seat Precision: Bore tolerance H7 for standard bearing fit, with optional press-fit or slip-fit geometry
  • Surface Finish Optimized: Ra 1.6-3.2 on rolling surface for belt traction, Ra 0.8 on bearing seats for accurate fit
  • Custom Groove Patterns: Diamond knurl, herringbone, straight groove, or plain surface available for specific belt traction requirements
Technical Specifications
Specification Details
Product Name CNC Machined Nylon Conveyor Roller
Material Options Nylon 6/6 (PA66), Nylon 6 (PA6), Delrin/Acetal (POM), UHMW-PE
Diameter Range 20mm - 150mm
Length Range 50mm - 1,200mm
Bore Options Plain bore, bearing seat (H7), keyed bore, set screw flat
Tolerance +/-0.025mm (diameter), +/-0.05mm (length), 0.05mm TIR (runout)
Surface Finish Ra 1.6-3.2 (rolling surface), Ra 0.8 (bearing seats)
Certifications ISO 9001:2015, IATF 16949, RoHS, CE, REACH, food-contact compliant grades available
Lead Time - Prototype 3-5 days
Lead Time - Production 7-12 days (100-1,000), 12-20 days (1,000-10,000)
MOQ 20 pieces (prototype), 100+ (production)
Origin Dongguan, China
Applications
  • Package Handling: Conveyor rollers for logistics centers, distribution warehouses, and parcel sorting systems
  • Food Processing: Washdown-rated Delrin rollers for food-grade conveyors, food-contact compliant material options
  • Mining & Aggregate: Tough nylon rollers for bulk material handling, resistant to abrasion and impact
  • Airport Baggage: Low-noise nylon rollers for baggage handling systems where quiet operation matters
  • Assembly Lines: Precision rollers for automotive and electronics assembly conveyors with tight positioning requirements
  • Agriculture: Corrosion-resistant nylon rollers for grain elevators, seed processing, and fertilizer handling
Why Choose Sinbo Precision
  • Between-Centers Turning: Every roller is turned between centers with live tailstock support to reliably maintain 0.05mm runout on 600mm rollers
  • Plastic Machining Focus: Dedicated cutting parameters, coolant strategies, and tool geometries specifically for engineering plastics
  • Material Expertise: Comprehensive stock of Nylon 6/6, Nylon 6, Delrin, and UHMW with expert application guidance
  • Volume Capability: Multi-spindle and multi-axis turning for high-volume production with consistent quality
  • Custom Profiles: Non-standard groove patterns, tapered rollers, crowned rollers, and multi-diameter rollers
  • Assembly Option: Complete roller assembly with pressed bearings and installed shafts for ready-to-install components
Manufacturing Process
  1. Material Selection: Confirm nylon grade based on load, speed, temperature, and moisture exposure requirements
  2. CNC Turning: Mount between centers, rough turn OD, finish turn to final diameter with surface finish control
  3. Secondary Machining: Drill and tap axle holes, mill keyways or set screw flats as required
  4. Deburring: Remove machining burrs using low-speed tools suitable for heat-sensitive nylon
  5. Dimensional Inspection: Comprehensive checking of diameter, length, runout, bore size, and groove depth
  6. Packaging: Individually wrapped protection with custom labeling for material grade and part identification
Frequently Asked Questions
Nylon or Delrin -- how do I choose for a conveyor roller?
For dry, room temperature environments, nylon offers better toughness and cost-effectiveness. For moisture, washdown, or high humidity applications, choose Delrin as it doesn't absorb water and maintains dimensional stability. Nylon can swell 1-2% when saturated, affecting bearing fits and belt tracking.
Can you make crowned rollers (barrel-shaped) for belt tracking?
Yes, we regularly produce crowned rollers for center-driven conveyors. We program the crown profile directly into CNC turning cycles, typically applying 0.5-1mm crown on 100mm diameter rollers. Simply specify your crown requirements.
What's the maximum roller length you can machine?
Our between-centers setup handles up to 1,200mm. For longer requirements, we recommend two-piece construction with steel shafts and nylon sleeves - a common solution for extended conveyor systems.
Do nylon rollers handle heavy loads?
Nylon 6/6 provides approximately 500kg load capacity on a 50mm diameter roller at 200mm span. For heavier loads, we can increase diameter, add steel cores, or use reinforced nylon (glass-filled) which doubles capacity.
Can you add bearings and shafts before shipping?
Yes, we stock standard 6200-series bearings and can press-fit them into bearing seats. We provide complete assembled roller units ready for installation into conveyor frames.
How does nylon hold up in cold environments?
Nylon becomes brittle below -20°C. For freezer or cold storage applications, Delrin maintains ductility down to -40°C. UHMW-PE is another cold-environment option, though with lower load capacity.