Lesson plan
Record press
A record press or stamper is a machine for manufacturing vinyl records. It is essentially a hydraulic press fitted with thin nickel stampers, which are negative impressions of a master disc. Labels and a pre-heated vinyl patty (or biscuit) are placed in a heated mold cavity. Two stampers are used, one for each side of the disc. The record press closes under about 150 tons of pressure. The process of compression molding forces the hot vinyl to fill the grooves in the stampers, and take the form of the finished record.
Article summary
A record press or stamper is a machine for manufacturing vinyl records. It is essentially a hydraulic press fitted with thin nickel stampers, which are negative impressions of a master disc. Labels and a pre-heated vinyl patty (or biscuit) are placed in a heated mold cavity. Two stampers are used, one for each side of the disc. The record press closes under about 150 tons of pressure. The process of compression molding forces the hot vinyl to fill the grooves in the stampers, and take the form of the finished record.
Key claims
No claims recorded.
Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.