Union, Bearingless Pop-Off, 12 mm pilot


1129-584
- Single passage for coolant or MQL
- Pop-Off™ technology allows unlimited dry running without media pressure
- Pop-off stroke of 0.7-3.0 mm compensates for thermal expansion of spindle during extended operation as well as 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
18 mm0.709 "
B
27.993 mm1.102 "
C
54 mm2.126 "
D1
69 mm2.717 "
E
37 mm1.457 "
F
24 mm0.945 "
G
7 mm0.276 "
I
12 mm0.472 "
J
45 mm1.772 "
X
10.5 mm0.413 "
Operating Specifications


Media
Coolant, MQLCoolant, MQL
Rotor Connection
18 mm0.709 "
Supply Connection
27.993 mm1.102 "
Coolant Max. Flow
50 l/min13.2 GPM
Coolant Max. Pressure
140 bar2030 psi
Coolant Max. Temperature
121 °C250 °F
MQL Max. Flow
1321 l/min46.6 CFM
MQL Max. Pressure
10 bar150 psi
MQL Max. Temperature
121 °C250 °F
Documents & Resources
Installation Guide
Installation Guide for 1129-584 union
Interface Drawing
Interface Control drawing for 1129-584
Operating Manual
Operating Manual for "Pop-Off" unions for machine tools