TPH

tph is an acronym used in several domains to denote throughput or frequency. Its meaning is context dependent, most commonly representing tons per hour, trains per hour, or transactions per hour. When interpreting a specification that uses tph, the accompanying units or context usually clarifies which meaning is intended.

Tons per hour measures mass throughput in industrial and processing facilities. It is common in mining, quarrying, cement, and bulk handling to quote capacity as tph. The figure depends on feed material properties, moisture, equipment efficiency, and operating conditions. For example, a gyratory crusher rated at 800 tph indicates it can process up to 800 metric tons of material per hour under specified feeding conditions.

Trains per hour is a transit performance metric used by rail operators and planners. It indicates how many trains pass a given point or section of track in one hour, typically shown per direction. Scheduling targets such as 4 tph per direction support service frequency and capacity planning; higher tph implies a denser service.

Transactions per hour is used in information technology and finance to indicate system throughput. It can apply to database transactions, payment processing, or batch jobs. In practice, transactions per second is more commonly used for real-time systems, but tph remains a useful measure for hourly workloads or batch processing pipelines, for example 10,000 transactions per hour.

Ambiguity and context are important when encountering tph, as the term spans several industries. Clarifying the domain and accompanying units helps prevent misinterpretation.