Union, Bearingless All-Media, M12x1.25 LH, 14 mm pilot, 3/8" PT
1139-032-327
- Single passage for all media
- Patented All-Media technology operates with closed seals for coolant, as a Pop-Off™ when pressure is removed, and as with a microscopic gap between the seals (“controlled leakage”) with pressurized dry air
- Non-rotating element has a “stroke” (axial movement) of 0.7-3.0 mm, for reliable sealing even with thermal expansion of spindle and variations in drawbar position
- Full-flow design has no obstructions to trap swarf or debris
- Balanced mechanical seals made from silicon carbide for long life even under difficult operating conditions
- Anodized aluminum housing resists corrosion
Dimensions
A
M12x1.25 LHM12x1.25 LH
B
3/8"-19 PT3/8"-19 PT
C
54 mm2.126 "
D1
105.5 mm4.154 "
E
37 mm1.457 "
F
16.8 mm0.661 "
G
6 mm0.236 "
H
18 mm0.709 "
I
14 mm0.551 "
J
50.2 mm1.976 "
L
25.4 mm1 "
P
Non-ThreadedNon-Threaded
X
4.9 mm0.193 "
Operating Specifications
Media
Air, Coolant, MQLAir, Coolant, MQL
Rotor Connection
M12x1.25 LH M12x1.25 LH
Supply Connection
3/8"-19 PT 3/8"-19 PT
Air Max. Flow
608 l/min21.5 CFM
Air Max. Pressure
10 bar150 psi
Air Max. Temperature
71 °C160 °F
Coolant Max. Flow
28 l/min7.4 GPM
Coolant Max. Pressure
140 bar2030 psi
Coolant Max. Temperature
71 °C160 °F
MQL Max. Flow
608 l/min21.5 CFM
MQL Max. Pressure
10 bar150 psi
MQL Max. Temperature
71 °C160 °F
Documents & Resources
Installation Guide
Installation Guide for Externally mounted Bearingless unions
Interface Drawing
Interface Control drawing for 1139-032-327
Operating Manual
Operating Manual for "All Media" 1139 series