Anvil-Type Press Models
Anvil Presses
Anvil pressing, pioneered and introduced by Pentronix, is the simplest, most economical high speed method of compacting powder parts. Anvil pressing is a "natural" for parts with one flat side. (The other side can be flat or multilevel. The part can be thick or thin, have holes, teeth, etc.) Since most parts fit this category, anvil pressing can benefit a wide range of parts producers.Because of their mechanical simplicity and durability, anvil presses offer special user benefits. For example: Pentronix anvil presses produce parts with unprecedented accuracy, at speeds previously unattainable, often with "up time" as high as 95% on long runs. They require a modest initial investment and return impressive savings in tool costs: initial tool costs reduced 25% (no upper punches), die life increased up to 50%, tool maintenance costs reduced by as much as 75%.
In conventional presses, parts are compacted between opposing upper and lower punches. In the anvil-type press tooling is simpler and less expensive. Parts are compacted against an anvil by the upward action of a lower punch (or punches). There are no upper punches and associated problems of misalignment, breakage and wear. Press set up is easy, and special skills are not required.
The Unitized Anvil - Advanced design for near-zero powder spillage.
In anvil-type presses, and in the anvil mode on 3-mode presses, a "positioner" brings the powder feeder, anvil, and vacuum pickup into position sequentially over the die cavity. Our Unitized Anvil combines powder feeder, anvil, and vacuum pickup into one compact unit which is always in contact with the die plate. Stray powder is eliminated since the die cavity is always covered even in the eject cycle. Powder spillage and blow-out are reduced practically to zero. This method is ideal for pressing precious metals and other high cost powders and toxic powder such as beryllium oxide and nuclear fuels.
Tooling set ups are even easier and faster with the unitized anvil than with "standard" anvils.
Features of Anvil-Type Presses
No upper punches for:- Mechanical simplicity
- Lower tooling costs
- Easy tool changeovers and adjustment
- Special skills not required
- Less downtime
- Low maintenance
- Closer tolerances
- More accurate parts
- Lower parts spoilage
- Higher operating speeds
- Inner and outer bottom punches
