Exclusive Western States Ringless Baskets

Increase Your Centrifugal’s Capacity

Why Choose Our New Ringless Basket

• Increase usable basket volume without changing the 2-speed motor or other major components ^[1]
• Replacement ringless baskets utilize same outside diameter but larger inside diameter by eliminating steel support rings
• Utilizes high strength Duplex Stainless Steel ^[2] which provides superior resistance to pitting and corrosion
• Provides the same high purging performance as our ringed baskets
• Superior manufacturing processes and quality control
• Available up to 72” diameter
• No other major modifications required ^[3]

Notes:

1. 54” baskets may require a larger motor to achieve equivalent performance.
2. Yield strength is approximately 2x that of austenitic steel
3. Basket screens are longer but the same height and the discharger blade tip may need to be increased about one inch in length

Accelerating and decelerating a ton or more of steel and sugar at 1,200 rpm is not a simple task. Don’t risk team safety, production downtime or costly repairs by using anything other than GENUINE Western States parts. Western States is known for designing and manufacturing the most reliable centrifugals in the world for 95 plus years WITHOUT a SINGLE basket failure due to design, materials or manufacturing.

48″ x 30″ Ringed to 50.75″ x 30″ Ringless:

V_RINGED = [0.7854*(D²_OUTER – D²_INNER)*Height]/1728
Where: D_OUTER = 48″; D_INNER = 34″; Height = 30″; V_RINGED = 15.65 ft³

V_RING-LESS = [0.7854*(D²_OUTER – D²_INNER)*Height]/1728
Where: D_OUTER = 50.75″; D_INNER = 34″; Height = 30″; V_RING-LESS = 19.36 ft³

V_INCREASE = V_RING-LESS/V_RINGED = 19.36/15.65 = 1.237

Thus, the volumetric increase is 23.7%

48″ x 36″ Ringed to 50.75″ x 36″ Ringless:

V_RINGED = [0.7854*(D²_OUTER – D²_INNER)*Height]/1728
Where: D_OUTER = 48″; D_INNER = 34″; Height = 36″; V_RINGED = 18.78 ft³

V_RING-LESS = [0.7854*(D²_OUTER – D²_INNER)*Height]/1728
Where: D_OUTER = 50.75″; D_INNER = 34″; Height = 36″; V_RING-LESS = 23.23 ft³

V_INCREASE = V_RING-LESS/V_RINGED = 23.23/18.78 = 1.237

Thus, the volumetric increase is 23.7%

48″ x 30″ Ringed to 50.75″ x 36″ Ringless:

V_RINGED = [0.7854*(D²_OUTER – D²_INNER)*Height]/1728
Where: D_OUTER = 48″; D_INNER = 34″; Height = 30″; V_RINGED = 15.65 ft³

V_RING-LESS = [0.7854*(D²_OUTER – D²_INNER)*Height]/1728
Where: D_OUTER = 50.75″; D_INNER = 34″; Height = 36″; V_RING-LESS = 23.23 ft³

V_INCREASE = V_RING-LESS/V_RINGED = 23.23/15.65 = 1.484

Thus, the volumetric increase is 48.4%

54″ x 40″ Ringed to 57″ x 40″ Ringless:

V_RINGED = [0.7854*(D²_OUTER – D²_INNER)*Height]/1728
Where: D_OUTER = 54″; D_INNER = 40″; Height = 40″; V_RINGED = 23.92 ft³

V_RING-LESS = [0.7854*(D²_OUTER – D²_INNER)*Height]/1728
Where: D_OUTER = 57″; D_INNER = 40″; Height = 40″; V_RING-LESS = 29.98 ft³

V_INCREASE = V_RING-LESS/V_RINGED = 29.98/23.92 = 1.253

Thus, the volumetric increase is 25.3%

Important Considerations

1. When converting from a ringed to a ringless basket, one must consider the increase in cycle time due to the increased sugar wall thickness. If a loss of 1 cycle per hour is assumed due to increased wash time and 20 cycles per hour were achieved before the conversion, the following capacity increases can be anticipated:
   48″ x 30″ Ringed to 50.75″ x 30″ Ringless: 368 ft³ / 313 ft³ = 1.176 or 17.6% increase in capacity
   48″ x 36″ Ringed to 50.75″ x 36″ Ringless: 441 ft³ / 376 ft³ = 1.173 or 17.3% increase in capacity
   48″ x 30″ Ringed to 50.75″ x 36″ Ringless: 441 ft³ / 313 ft³ = 1.409 or 40.9% increase in capacity
   54″ x 40″ Ringed to 57″ x 40″ Ringless: 570 ft³ / 478 ft³ = 1.192 or 19.2% increase in capacity
2. The inertia (ωr2) required to rotate a 48″ ringed basket is nearly equivalent to that required to rotate a 50.75″ ringless basket (both loaded and unloaded). Thus, the torque/time required to accelerate and decelerate the unit to top speed are similar. This eliminates the need for additional motor HP. This is not the case with the 54″ basket. Additional HP is required to accelerate/decelerate the 57″ basket at the same rate. Accordingly, a larger motor will very likely be required when making this conversion.