Union, Pop-Off, Female Oct, 8 mm pilot, G 1/4"
1109-840-835
- Single passage for coolant or MQL
- Pop-Off™ technology allows unlimited dry running without media pressure
- Allows axial drawbar movement up to 19 mm
- Full-flow design has no obstructions to trap swarf or debris
- Bore-mounted design for easy installation
- Matched, ISO class P4 hybrid ball bearings for smooth operation at high speeds
- Labyrinth system and large vents to protect ball bearings
- Balanced mechanical seals made from silicon carbide for long life even under difficult operating conditions
- Anodized aluminum and stainless steel parts resist corrosion
Dimensions
A
Female OctFemale Oct
B
G 1/4"-19G 1/4"-19
C
48 mm1.89 "
D1
127.5 mm5.02 "
E
19.5 mm0.768 "
F
19.5 mm0.768 "
G
8.1 mm0.319 "
I
8.1 mm0.319 "
J
90.6 mm3.567 "
K
G 1/4"-19G 1/4"-19
P
G 1/4"-19G 1/4"-19
X
32.7 mm1.287 "
Operating Specifications
Media
Coolant, MQLCoolant, MQL
Rotor Connection
Female Oct Female Oct
Supply Connection
G 1/4"-19 G 1/4"-19
Coolant Max. Flow
24.3 l/min6.4 GPM
Coolant Max. Pressure
150 bar2175 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, Bore Mount (Chinese)
Interface Drawing
Interface Control drawing for 1109-840-835
Operating Manual
Operating Manual for "Pop-Off" unions for machine tools