Air Feed Tube (AFT) for Precision Air ChuckAir Feed Tube
Air Feed Tube (AFT) supplies air to a rotating air chuck during operation. There are several types of AFT and others can be ordered upon request. Standard models are: BC/2 - has 2 airways, NBC/3 - has 2 airways, 1 coolant passage and 1 drain port.
BC/2 type – AFT Two ports without through-hole coolant application |
NBC/3 type – AFT Two air ports and through-hole coolant application |
BC/2 type - AFT Two airways + through-hole coolant valve
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NBC/3 S – AFT 2 air ways, 1 coolant passage for liquids (high pressure) |
BC/2 Flex – AFT 2 air ways for high speed operation
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NBC/3 S Flex – AFT 2 air ways, 1 coolant passage for high speed operation |
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Air Feed Device (AFD) 85mm DIA. 2 air ways, suitable for 4th and 5th Axis, rotates at low speed
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NBC/2 S Flex – 2 air ways, 1 coolant passage for high speed, 1 drainage, 1 oil mist lubrication port |
NBC/5 S Flex – 5 air ways, 1 coolant passage for high speed, 1 drainage, 1 oil mist lubrication port |
PML-PAL offers additional multiport air feed tubes for air chucks with the following features. There are models with 4, 5, and 6 air ways, such as, coolant passage for high speed, and AFT self-lubricating port.
We also make air feed device (AFD) showing above for rotary table and 4th/ 5th axes. 2 air ways. Coolant passage is available.
Ordering an AFT When ordering an AFT, please specify the following: LR=LS (spindle length) + (7~11mm)* + E(chuck adaptor) + D(AFT adaptor) + C (S.R Bushing) + S(Max. 5mm) *Dimension differs according to the type of chuck: 7mm for types up to 5", and 11mm for types 6" and above.
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