RF ceramic ferrule-RF16
RF ceramic ferrule-RF20
RF ceramic ferrule(RF6-RF24)

Size of RF Ceramic Ferrule: PF6~PF24

Main Raw Material: Cordierite

Original: Jiangsu, China

Delivery time: Around 15~20 days after receiving deposit


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RF Ceramic Ferrule

RF ceramic ferrule  is designed for threaded stud with reduced shaft, there are also 7 sizes similar as PF ceramic ferrule for choice: RF6, RF8, RF10, RF12, RF16, RF20, RF24.

RF ceramic ferrule’s main raw material is cordierite. And by molding, making green body, calcining, etc. It is widely used for magnetic force floating railway engineer, building bridge, building railway, large power plant, plane depot that needs wide span.

RF ceramic ferrule drawing
Dimensions of Ceramic Ferrule for Threaded Studs with Reduced Shaft(RF)
Dimensions in milllimeters
FormRF ceramic ferrule D7Ceramic ferrule d8Ceramic ferrule d9Ceramic ferrule height
RF 66.29.512.210
RF 88.21215.39
RF 1010.21518.511.5
RF 1212.2172013
RF 1616.3/14 a20.5/26.2 a26.5/32.5 a15.3/8.8 a
RF 2020.3/17.5 a26.2/28.5 a3222/9 a
RF 2424.3/21 a26.2/30.4 b33/36 b25/13 a
a The dimensions after the oblique stroke shall apply if studs, according to values following the oblique stroke in RD stud table
b At the manufacturer's discretion


RF ceramic ferrule-RF12
RF ceramic ferrule for welding

Benefits of RF Ceramic Ferrule


  • Good concentricity and consistency
  • Excellent wear and heat resistance
  • High strength, endurability, and anti-aging performance
  • Extremely precise design as well as customized products


Why chooses Sino Stone?

Sino Stone choose quality cordierite and other raw material from famous company Sinopec Group and Sinopec Shanghai Petrochemical Company Limited with good mechanical properties and weld performance, which can ensure the stud welding’s results.

UF ceramic ferrule's raw material sourcing
UF ceramic ferrule raw material-SPC



Firstly, the ceramic ferrules are packaged in carton layer by layer.

Secondly, the cartons are loaded in pallet binding with plastic sheeting for repelling moisture.

Finally, the pallets are put in the container.

PF ceramic ferrule in plastic package
PF ceramic ferrule in carton
PF ceramic ferrule in pallet
PF Ceramic ferrule in wooden box
Ceramic ferrule for Singapore in truck
Ceramic ferrule in container

Sino Stone can also package according to the clients’ requirements.

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