Preventing Costly Sourcing Mistakes Under CFR Chattogram Terms

Opening an irrevocable Letter of Credit (L/C) through authorized dealer banks in Bangladesh requires rigorous technical parameters specified right inside the Proforma Invoice (PI).

10-Point Technical Verification Checklist:

Cylinder Runout Tolerance: Dial indicator testing must ensure concentric runout is under 0.02 mm to prevent needle channel distortion.

Cam Metallurgy: Insist on Japanese alloy steel cam blocks heat-treated to Rockwell C 58–62 hardness.

Needle Bed Cleanliness: Check needle channel milling with zero burrs or micro-pitting under magnification.

Feeder Density Ratio: Ensure feeder count per inch matches production expectations (e.g. 3.0 to 3.2 feeders/inch for high-speed single jersey).

Positive Yarn Feeder Compatibility: Verify genuine Memminger-IRO or premium ceramic eyelet storage feeders.

Inverter Drive & Electronics: Confirm Delta, Siemens, or Inovance vector drives with digital frequency control.

Automated Lubrication System: Pulsed electronic micro-mist lubricators (Uniwave or Pulsar) to eliminate oil drops on gray fabric.

Motor Wattage & Electrical Safety: 3-phase induction motor sized properly (5.5 kW to 7.5 kW) with overload thermal protection.

Pre-Shipment Inspection (PSI) Clause: Include mandatory pre-shipment quality audit and running test video verification in L/C terms.

Seaworthy Packaging: Vacuum-sealed aluminum barrier foil with industrial desiccants inside fumigated plywood boxes (ISPM-15).

10 Essential Technical Checks Before Opening Bank L/C for Circular Knitting Machinery

Preventing Costly Sourcing Mistakes Under CFR Chattogram Terms

10-Point Technical Verification Checklist:

Configure Your Mill's Circular Knitting Line