PR series with a free internal passage for tubes, shafts or wires: PRE Smart, PRP, PRS and PRG.
PRE Smart
The innovative Slip Ring PRE Smart is the result of in-depth analysis and detailed engineering to satisfy the needs of users. One of the main peculiarities of its innovative design is the possibility to open a section of the external case in order to monitor the conditions inside the slip ring. Thanks to this unique detail, maintenance time and costs are reduced.
Born from the careful and constant auditing of customer requests, PRE Smart — with its high versatility, customisable executions, interchangeability with the PRP slip ring and the opening external case — is the perfect execution for all applications requiring reduced dimensions while preserving high mechanical resistance and a high protection degree.
Provided with a free internal hole for the passage of tubes for liquids, shafts or wires, PRE Smart is available in modular executions of 20 A, 30 A or 50 A, as well as in mixed executions with up to 50 A for signal-combined versions.
Upon request it can be customised with additional radial or axial cable entries, signal executions with silver-graphite brushes and “Long Life” versions.
- “Long Life” executions — specific for continuous service
- Opening lateral section — for easier maintenance
- Reduced height — to fit each application
- Free internal hole — for tubes for liquids, shafts or wires
- Brushes 20/30/50 A — up to 50 A and signal-combined versions
PRP
The Ravioli Slip Ring Type PRP has a protective insulating housing made of a highly mechanically resistant thermoplastic material. One of its outstanding features is the totally free 42 mm internal hole, allowing the passage of tubes for liquids, shafts or metallic wires.
Blade, copper-graphite or silver-graphite brushes for signals are available; executions range from 4 to 36 rings at 20/30/50 A.
PRP combines safety, reliability and versatility at a highly competitive cost.
- Modular version — thanks to the sections it is made of
- Free internal hole — for tubes for liquids, shafts or wires
- Brushes 20/30/50 A — up to 50 A and signal-combined versions
- Internal terminal box — for the connection of rings
PRS
The Ravioli Slip Ring Type PRS has a metallic bottom and an aluminium cover, both characterised by strong mechanical resistance and a high protection degree.
Blade, copper-graphite or silver-graphite brushes for signals are available; executions range from 4 to 14 rings at 20/30/50 A, protection degree IP55.
This slip ring is specifically suitable for outdoor applications with a limited number of passages.
- Aluminium housing
- Protection — protection degree IP55
- Brushes 20/30/50 A — and for signals
PRG
The Ravioli Slip Ring Type PRG — provided without housing — is available in a large number of versions and executions from 90 mm to 350 mm in diameter. This allows a wide internal passage combined with a nominal current ranging from a few tens to several hundred amperes.
Blade, copper-graphite or silver-graphite brushes for signals are available; executions range from 4 to 36 rings at 20/30/50/80/120/200 A.
PRG is specifically suitable for applications requiring high currents and optional central passages for tubes, wires or metallic shafts.
- Wide internal passage — 90–350 mm diameter range
- High current — rings up to 200 A