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Type:

Nozzle Radius:

Tip Hole Diameter ("O" Dimension):

Overall Length:

Shank Length:

Shank Diameter:

Head Diameter:

Body Material:

Carbide Lined?

Help with Sprue Bushings specifications:

Type
   Type       
   Your choices are...         
   Cold Sprue Bushing       Cold sprue bushings are inserted into the mold and provide a channel between the molding machine nozzle and the mold cavity.   Cold sprue bushings are unheated and leave a sprue that must be removed, often by a secondary operation, if appearance is a consideration.  There are two important dimensions on the nozzle end of the bushing, the "O" dimension hole opening and the spherical radius is .75" or .5". 
   Hot / Heated Sprue Bushing       Hot sprue bushings are inserted into the mold and provide a hot channel between the molding machine nozzle and the mold cavity.  A heating element contained within the hot sprue bushings is used to keep the resin melt hot within the bushing. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Specifications
   Nozzle Radius       
   Your choices are...         
   Flat Type Bushing       Flat type bushings have a flat surface instead of a nozzle radius. 
   .50"       The nozzle radius is a .5" spherical radius on the end of the sprue bushing that mates to a radius on the end of the machine nozzle. 
   .75"       The nozzle radius is a .75" spherical radius on the end of the sprue bushing that mates to a radius on the end of the machine nozzle. 
   Other Radius       Other, unlisted nozzle radius. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Tip Hole Diameter ("O" Dimension)       The tip hold diameter (commonly referred to as the "O" dimension) is the diameter of the inlet hole on the nozzle seat.  This is the hole that mates to the nozzle tip and where the material enters the sprue bushing.  This dimension may also be referred to as the gate diameter, or melt passage diameter. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Overall Length       This dimension refers to the overall length of the sprue bushing, not including any nozzle that may be present. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Shank Length       This dimension refers to the length of the shank, from the underside of the bushing head to the end of the sprue bushing. This dimension does not any nozzle that may be present. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Shank Diameter       This dimension refers to the outside diameter of the sprue bushing shank. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Head Diameter       This dimension refers to the overall diameter of the sprue bushing head. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Material
   Body Material       
   Your choices are...         
   Hardened Steel       The sprue bushing is manufactured of a hardened tool steel.  Steel may be hardened in a number of ways, including a variety of quenching techniques in oil and water, being passed through induction chambers, etc. Quickly cooling steel during processing freezes, traps and packs the carbon atoms inside the shrunken iron crystals, thereby producing a very hard and brittle metal. Although very hard, it cannot absorb much shock or impact without breaking. 
   Copper Base Alloy       Sprue bushing body is made from a copper base alloy.  The nozzle seat is usually made from a hard material, such as stainless steel.  Copper alloy bushings provide fast heat transfer rates. 
   Other Material       Other, unlisted, or proprietary material. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Carbide Lined       Sprue bushings may be lined with carbide for wear and corrosion resistance and fast heat transfer rates.  Carbide lined sprue bushings are good for use with abrasive resins. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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