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Insulating & Exothermic Sleeves

  • Insulating & Exothermic Sleeves Collars
  • Insulating & Exothermic Riser Sleeves
  • Round Neckdown Sleeves
  • Blind Riser
  • NF-31 Riser Compounds
  • IX24 Hot Toppings
  • Filters

These riser sleeves provide the foundry with a reliable cost effective approach for optimizing feeding efficiency, improving quality, and lower costs.

  • Reduces contact area to facilitate riser removal
  • Eliminates need for metal padding of casting to accommodate riser
  • Eliminates need for breaker cores
  • Reduces metal volume while maintaining head height
  • Available with embedded woven cloth to further facilitate riser removal
  • Available in a variety of compositions to meet casting needs.
  • Wide variety of standard sizes in stock and also can be customized
  • Reductions of heat loss
  • Improved cast yield
  • Reduction of melting and cleaning room costs
  • Reduction of piping and shrinkage
  • Maintain integrity-will not contaminate system
  • Improve soundness of castings
  • Light weight yet strong
  • Low smoke and fumes
  • Reduction for re-melt volumes
  • Easily modified to create special feeding effects while maintaining thermal performance
Product Types
CF 100 Low Temp - Aluminum (1500 F)
CF 200 Med Temp - Ductile—Grey (2650 F)
CF 300 High Temp - Steel (2950 F)
CF 200 B Med Temp, low gas, smoke, binder does not burn out at normal temp.
CF 300 P High Temp, low gas, smoke reusable for aluminum up to six times. Binder doesn’t burn out.
CFX - 700 EX - 700 Exothermic sleeve used on normal production line.
XE 760A Exothermic sleeve used on high compression line. Eg. Hunter Equipment.
CFX 800 Heavy weight exothermic sleeve used for large molding flasks

Insulated & Exothermic Riser Sleeves

CF 100, CF 200, CF 300 insulating, and CFX 700 and CFX 760 exothermic resin-bonded and starch-bonded (W) straight sleeves are available in the following standard sizes:

  • 1” to 9” diameter in 1/2” increments up to 18” tall, 1/2” wall standard
  • 9” to 16” diameter in 1” increments up to 12” tall, 1/2 to 1” wall available
  • 16” to 30’ diameter in 2” increments up to 12” tall, 1 to 2” wall available

CFX 800 exothermic resin-bonded sleeves are available in the following sizes:

  • 3” to 6” diameter in 1/2 increments to 12” high, 1/2” to 1” wall available
  • 6” to 14” diameter in 1” increments to 12” high, 1/2” to 1-1/2” wall available
  • 16” to 28” diameter in 2” diameter to 12” high, 1-1/2” to 2” wall available

Round Neckdown

Sleeves are produced with a normal 1/2” wall thickness. The neck is tapered 30° from vertical. The following sizes are available:

Top Diameter Bottom Diameter Overall Height
2 1 3, 4, or 6
2.5 1.25 3, 4, 6, 10, or 12
3 1.5 4, 6, 8, 10 , or 12
3.5 1.75 5, 6, 7.5, 8, or 12
4 2 4, 5, 6, 8, 10, or 12
4.5 2.25 6, 8, 10, or 12
5 2.5 5, 6, 7, 8, 10, or 12

Blind Riser Sleeves

Sleeves are produced with a normal wall 1/2” thick. The following riser sizes are available. Special sizes can be made on request.

Designation Top ID (In) Inside Height (In) Volume (Cu. In.)
1522 1.50 2.25 3.15
2030 2.00 3.00 7.48
2537 2.50 3.75 14.96
3045 3.00 4.50 25.59
3552 3.50 5.25 40.55
4060 4.00 6.00 60.62
5060 5.00 6.00 98.82
5075 5.00 7.50 133.07
6060 6.00 6.00 146.45
6090 6.00 9.00 222.05

Hot Topping Compounds

Hot Toppings features a unique combination of insulating and exothermic characteristics for improved feeding of castings. They are available for both ferrous and non-ferrous applications. Foundries are able to reduce production costs due to the topping compounds ability to:

  • Reduces riser heat loss to atmosphere
  • Maintain open riser to assure continued feeding
  • Reduce piping in risers
  • Assure integrity of the casting
  • Increase metal yield
  • Easy to apply
Topping Property HT-NF-31 HT-IX46 HT-IX24
Expandable No Yes Yes
Sensitivity of reaction Rapid Moderate Slow
Type of Ash Firm Crust Soft Crust Soft Crust
Heat Output High Moderately High High
Insulation Moderate Very High High
Fume Moderate Low Low
Bulk Density High Low Moderately High
Metal Application Non-Ferrous Iron and Steel Iron and Steel

Hot Toppings available in five gallon pails, fiber drums and bulk bags.


Filters

  • T1- economical filter for use in aluminum and magnesium casting
  • T2- durable filter for use in copper base and iron casting

A wide assortment of standard squares, rectangles, discs and 22 1/2 degree tapered discs are readily available.

Round Filters Rectangular Square 22 Degree Round Taper
.50” X 1.50” .88” X 2.00” X 3.00” .50” X 1.50” X 1.50” .088” X 2.50”
.50” X 2.00” .88” X 3.00” X 4.00” .50”X 2.00”X 2.00” .088” X 3.00”
.88” X 2.50” .88” X 4.00” X 6.00” .88” X 2.00” X 2.00”  
.88” X 3.00” .88”X 6.00” X 8.00” .88” X 3.00” X 3.00”  
.88” X 4.00” 1.50” X 6.00” X 8.00” .75”X 4.00” X 4.00”  
1.00” X 3.00”   .88” X 4.00” X 4.00”  
1.25” X 4.00”   1.00” X 3.00” X 3.00”  
1.50” X 5.00”      
1.50” X 6.00”      
1.75” X 7.00”      
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