YCM L78-SY1 Flashcards
What control system does the YCM L78-SY1 use?
FANUC 32i-B control with a 10.4” LCD screen.
What industries is the YCM L78-SY1 suitable for?
Medical, aerospace, automotive, and job shops.
What are the X1 and X2 axis travels for the YCM L78-SY1?
X1: 8.95”, X2: 9.075”.
What is the Y-axis travel of the YCM L78-SY1?
+1.97”/-1.97”.
What are the Z1 and Z2 axis travels?
Both Z1 and Z2: 15.04”.
How much B-axis travel does the sub-spindle offer?
20.86”.
What type of machine bed does the YCM L78-SY1 feature?
45° one-piece slant bed design.
What material is used in the bed construction of the YCM L78-SY1?
High-quality cast iron.
What accuracy do the glass scales on X1, X2, and Y-axes provide?
Positioning accuracy of 0.00011” and repeatability of 0.00003”.
What is the main spindle nose interface for the YCM L78-SY1?
A2-6.
What is the chuck size for Spindle 1 on the YCM L78-SY1?
INDEX 80 collet adaptation.
What is the maximum spindle speed for both spindles?
4,000 RPM.
What is the continuous power rating for Spindle 1 and Spindle 2?
14.47 HP each.
What is the torque rating for Spindle 1 and Spindle 2 at 30 min?
170.3 ft. lbs.
What lubrication method is used for the spindles?
Grease lubrication.
What is the full C-axis resolution for the spindles?
0.001° with 360,000 radial positions.
How is heat managed in the spindle design?
Spindle chiller units are used for thermal stability.
What feature allows balanced cutting on the YCM L78-SY1?
Synchronization for balanced cutting between Spindle 1 and Spindle 2.
How many tool stations does each turret offer?
16 stations per turret, for a total of 32 tool stations.
What tooling standard is used on the turrets?
BMT65 tooling system.
What is the live tooling speed range?
60 to 6,000 RPM.
What is the maximum power output for live tools?
6 HP (intermittent).
What is the tool index time for the turret?
0.5 seconds.
Can every tool on both turrets service either spindle?
Yes, every tool can service either spindle.
What turret lubrication method is used?
Oil/air mist lubrication.
How are additional tools accommodated?
Through toolholders that allow front and backside mounting, as well as Y-axis shifts.
What is the purpose of the independent Y-axis on the YCM L78-SY1?
Enables milling, drilling, and tapping off-center features and machining keyways.
How does the Y-axis enhance part flexibility?
By allowing off-center machining, flats milling, and keyway cutting in a single setup.
What is the rapid traverse rate for the X-axis?
630 IPM.
What is the rapid traverse rate for the Z-axis?
1,574 IPM.
What is the rapid traverse rate for the Y-axis?
236 IPM.
What is the cutting feed rate for all axes?
236 IPM.
What is the swing over bed for the YCM L78-SY1?
32.67”.
What is the standard turning diameter?
8.26”.
What is the maximum turning diameter?
14.17”.
What is the maximum turning length?
16.33”.
What is the purpose of the finished parts gripper and conveyor?
To efficiently collect parts up to 2.99” in diameter, 4.72” in length, and 10 lbs. in weight.
What is the purpose of the twin synchronized spindles?
For pinch turning and threading, reducing cycle times by up to 30%.
How does the programmable sub-spindle enhance setup?
It allows precise control over thrust and feedrate for better accuracy.
What is the resolution of the glass scales on X1, X2, and Y-axes?
1 micron.
What type of encoders are used on Z1, Z2, and B axes?
AC digital servo motors with 1 millionth pulse encoders.
How is accuracy maintained over long machining cycles?
Through built-in glass scales and thermal management systems.
What is the required air pressure for the YCM L78-SY1?
87 PSI (6 bar).
What is the voltage requirement for the YCM L78-SY1?
220 volts.
What is the coolant tank capacity?
95 US gallons.
What type of chip conveyor does the machine use?
Lift-up style chip conveyor.
What is the required floor space for the YCM L78-SY1?
165.98” x 92.20” x 84.41”.
What is the shipping weight of the machine?
22,707.6 lbs.
What is the shipping weight of the coolant tank and chip conveyor?
1,764 lbs.
What makes the YCM L78-SY1 ideal for complex components?
Twin synchronized spindles, dual Y-axis capable turrets, live tools, and glass scale accuracy ensure flexibility, precision, and reduced cycle times.
