Knit Productivity and Production Economics

Circular knit productivity: Production rate = (machine rev/min × needles × feeders × stitch length × 60) / (10⁶ × GSM) giving kg/hour, typically 30-100 kg/shift for single jersey depending on machine size, speed, GSM. Efficiency factors: machine utilization (85-95% typical, losses from style changes, maintenance, breaks), yarn utilization (96-98%, waste from cone changes, defects), and quality yield (first quality 90-95%, second quality 3-7%, waste 1-3%). Flatbed knit productivity: much slower than circular (5-20 kg/shift typical) but value-added through fully-fashioned capability (reduced cutting waste, superior fit commanding 30-50% premium). Economics: Circular machine cost ($20,000-200,000 depending on diameter, gauge, features—jacquard more expensive), Flatbed machine cost ($50,000-250,000 with WholeGarment $150,000-300,000), Operating costs (labor 30-40%, yarn 45-55%, energy/maintenance 10-15%), and Conversion cost (circular $0.50-1.50/kg, flatbed $3.00-8.00/kg reflecting labor intensity and slower speed). Labor productivity: circular knitting 1 operator per 30-60 machines (highly automated), flatbed 1 operator per 6-20 machines (more intervention required).