Advanced Washer Extraction Inputs
Enter drum, load, moisture, spin, time, and power values. The result appears above this form after submission.
Example Data Table
| Fabric Load | Drum Diameter | RPM | Initial Moisture | Target Moisture | Expected Use |
|---|---|---|---|---|---|
| Hotel towels | 80 cm | 1000 | 110% | 55% | High water removal |
| Mixed garments | 65 cm | 850 | 85% | 60% | Balanced extraction |
| Light linens | 75 cm | 950 | 95% | 50% | Fast drying support |
Formula Used
Relative centrifugal force: RCF = 1.118 × 10-5 × radius in centimeters × RPM2.
Angular velocity: ω = 2π × RPM ÷ 60.
Centrifugal force: F = mass × ω2 × radius.
Water removed: Removed water = (initial water − target water) × extraction efficiency.
Moisture retention: Moisture % = remaining water ÷ dry load weight × 100.
Energy use: kWh = motor power × extraction time in hours.
These formulas estimate washer extraction behavior. Real results depend on fabric type, drain flow, machine condition, loading, and balance control.
How to Use This Calculator
Start with the drum diameter. Choose the correct unit. Add the spin speed in revolutions per minute. Enter the laundry load weight. Select whether the weight is dry or wet.
Next, add the rated dry capacity of the washer. Enter the initial moisture retention. Then enter the target moisture retention. Use higher moisture values for towels and thick fabric. Use lower values for light garments.
Add the expected extraction efficiency. A well maintained washer may perform better. A worn machine may perform lower. Enter extraction time, motor power, and energy rate. Press the calculate button. The result will appear above the form.
Use the CSV button for spreadsheet records. Use the PDF button for reports, maintenance notes, or client files.
Extraction Washer Planning Guide
What the Calculator Measures
An extraction washer removes water by spinning the load at high speed. The main output is relative centrifugal force. It is often called G force. A higher value usually removes more water. It can also create more stress on fabric and equipment.
Why Moisture Retention Matters
Moisture retention compares water weight with dry fabric weight. A towel load may hold a large amount of water. A light garment load may hold less. Lower final moisture can reduce dryer time. This may lower energy cost.
Spin Speed and Drum Size
RPM alone does not tell the full story. Drum radius also matters. A large drum can create strong extraction at the same speed. That is why this tool uses diameter and RPM together. It gives a better view of spin performance.
Load Balance and Capacity
A washer should not be overloaded. A heavy load can reduce extraction and increase vibration. An underloaded drum can also become unstable. The balance score helps compare load size with rated capacity. It also includes the imbalance allowance.
Energy and Operating Cost
Extraction uses motor power for a short time. The calculator estimates energy use from power and cycle duration. This helps compare cycle settings. A stronger spin may cost slightly more during extraction. It may still save energy later by shortening drying time.
Practical Use
Use this calculator before changing washer settings. Compare several RPM values. Check final moisture and G force. Keep results for maintenance records. For commercial laundry, review machine limits before using very high speeds.
FAQs
What is an extraction washer calculator?
It estimates spin force, water removal, final moisture, energy use, and load balance for washer extraction cycles.
What does G force mean in washer extraction?
G force shows the relative centrifugal force created by drum spin. Higher values usually remove more water.
Does higher RPM always improve extraction?
Higher RPM can improve water removal, but drum size, fabric type, balance, and machine rating also affect results.
What is moisture retention?
Moisture retention is remaining water weight compared with dry fabric weight. It is shown as a percentage.
Can this calculator estimate drying savings?
It estimates removed water and final moisture. Lower final moisture often reduces dryer time and energy use.
Why is drum diameter required?
Drum diameter helps calculate radius. Radius and RPM together determine relative centrifugal force.
What is a good extraction efficiency value?
Many estimates use 70% to 90%. Use lower values for poor loading, older machines, or difficult fabrics.
Is this suitable for commercial laundry planning?
Yes, it helps with planning. Always compare results with machine manuals, safety ratings, and fabric care limits.