Spinning Production Calculator
Production is delivered length per hour times linear density: a card at 150 m/min making 5 ktex sliver at 90 % efficiency produces 40.5 kg/h.
40.5 kg/h
- Production per 8-hour shift
- 324 kg
- Production per day (24 h)
- 972 kg
- Theoretical (100 %)
- 45 kg/h
Step-by-step solution
- Production = speed × 60 × linear density × deliveries × efficiency
- = 150 m/min × 60 × 5 g/m × 1 × 0.9 ÷ 1000 = 40.5 kg/h
Spinning Production Formula
kg/h = speed (m/min) × 60 × ktex × η ÷ 1000
ring frame: delivery speed = spindle rpm ÷ TPM
Worked Example
A card delivering 5 ktex sliver at 150 m/min and 90 % efficiency:
- Production = speed × 60 × linear density × deliveries × efficiency
- = 150 m/min × 60 × 5 g/m × 1 × 0.9 ÷ 1000 = 40.5 kg/h
Production per day (24 h): 972 kg · Theoretical (100 %): 45 kg/h
More Yarn Manufacture Calculators
-
Yarn Twist Calculator
TM = TPI ÷ √Ne
αm = TPM ÷ √Nm, αtex = TPM × √tex; 1 TPI = 39.37 TPM
Example: A 20s Ne cotton yarn with 16.1 turns per inch: Twist multiplier TM = 3.6001.
-
Draft Calculator
Draft = N_out × doublings ÷ N_in
indirect counts; mechanical draft = delivery ÷ feed surface speed; actual = mechanical ÷ (1 − waste)
Example: A 0.12 hank sliver drafted to a 1 hank roving with no doubling: Actual draft = 8.33333.
-
Yarn Diameter Calculator
d = √[4 × tex × 10⁻⁶ ÷ (π ρ φ)]
ρ fibre density, φ packing fraction; Peirce cotton d (in) = 1/(28√Ne)
Example: A 20s cotton yarn (ρ = 1.52 g/cm³, φ = 0.6): Yarn diameter d = 0.203034 mm.
Frequently asked questions
How is ring frame production per spindle calculated?
Delivery speed = spindle rpm ÷ TPM; grams per hour = speed × 60 × tex ÷ 1000 × efficiency.
Why does higher twist reduce ring frame output?
Each turn of the spindle inserts one turn of twist, so more TPM means less yarn delivered per minute.
Sources
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Spinning Production Calculator. Retrieved October 25, 2026, from https://scientificconverters.com/calculators/spinning-production-calculator/
IEEE
Scientific Converters, "Spinning Production Calculator," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/calculators/spinning-production-calculator/