YCM JC12

Question 1

What are the axis travel distances (X, Y, Z) for the JC12?

Answer 1

X-axis: 1,270 mm (50”), Y-axis: 660 mm (25.98”), Z-axis: 620 mm (24.4”)

Question 2

How many guide blocks does the JC12 have on the X and Y axes?

Answer 2

Six guide blocks on the X-axis and eight on the Y-axis.

Question 3

What is the maximum table load capacity of the JC12?

Answer 3

1,500 kg (3,300 lbs).

Question 4

What is the construction material for the JC12’s bed?

Answer 4

Meehanite Cast Iron.

Question 5

What type of guideways are used in the X, Y, and Z axes on the JC12?

Answer 5

High load capacity 45 mm Roller Guideways.

Question 6

What benefits do the 45 mm Roller Guideways provide compared to ball-type guideways?

Answer 6

Greater contact area, improved rigidity, vibration damping, and longer service life.

Question 7

What type of ballscrews are used on all JC12 axes?

Answer 7

Fixed, pre-tensioned double-nut ballscrews.

Question 8

What are the pitch specifications for the ballscrews on the X, Y, and Z axes?

Answer 8

X-axis: 16 mm, Y and Z axes: 12 mm.

Question 9

What is the diameter of the ballscrews on the JC12?

Answer 9

45 mm (1.77”).

Question 10

What is the type of motors and encoders used in the JC12?

Answer 10

AC Digital Servo Motors with 1-Million Pulse Encoders.

Question 11

What is the JC12’s positioning accuracy without scales?

Answer 11

.010 mm (.00039”) in the X, Y, and Z axes.

Question 12

What is the JC12’s repeatability without scales?

Answer 12

.007 mm (.00027”) in the X, Y, and Z axes.

Question 13

What are the optimal conditions to maintain JC12’s specified accuracy?

Answer 13

Temperature-controlled environment of 68°F ± 3°, with an approved foundation.

Question 14

What is the recommended action if accuracy requirements are stringent?

Answer 14

Use foundation pads and anchoring bolts as specified by YCM guidelines.

Question 15

What is the rapid traverse rate for the X and Y axes on the JC12?

Answer 15

36 m/min (1,417 IPM).

Question 16

What is the rapid traverse rate for the Z-axis on the JC12?

Answer 16

30 m/min (1,181 IPM).

Question 17

What is the maximum cutting feed rate for the JC12?

Answer 17

20 m/min (787 IPM).

Question 18

What is the maximum spindle speed of the JC12?

Answer 18

12,000 RPM.

Question 19

What spindle nose interface does the JC12 use?

Answer 19

Dual Contact BBT40.

Question 20

What is the maximum horsepower of the JC12 spindle motor?

Answer 20

25 HP (18.5 kW).

Question 21

What is the continuous rating for the JC12 spindle motor?

Answer 21

15 HP (11 kW).

Question 22

What is the maximum torque rating of the JC12 spindle?

Answer 22

117.8 Nm (86.9 ft. lbs).

Question 23

What is the spindle lubrication method on the JC12?

Answer 23

Grease lubrication.

Question 24

What is the spindle chiller function on the JC12?

Answer 24

Provides thermal stability and extends spindle life by controlling spindle temperature.

Question 25

At what speed should the spindle be reduced to re-lubricate bearings if run above 8,000 RPM continuously?

Answer 25

Reduce to 2,000-4,000 RPM for at least 10 minutes every four hours.

Question 26

What are the dimensions of the work area on the JC12's table?

Answer 26

1,350 x 660 mm (53.14" x 26").

Question 27

What is the maximum workpiece length the JC12 table can accommodate?

Answer 27

1,330 mm (52.4").

Question 28

How many T-slots are on the JC12 table, and what is their size?

Answer 28

Six T-slots, each 18 mm (0.71") wide, spaced 100 mm (3.94") apart.

Question 29

What is the height of the JC12 table from the floor?

Answer 29

950 mm (37.40").

Question 30

What is the standard tool capacity for the JC12’s ATC?

Answer 30

30 tools.

Question 31

What optional tool capacities are available for the JC12's ATC?

Answer 31

48 or 60 tools.

Question 32

What is the tool-to-tool change time for the JC12 ATC?

Answer 32

1.8 seconds.

Question 33

What is the chip-to-chip time for the JC12 ATC?

Answer 33

5 seconds.

Question 34

What is the maximum tool diameter with all pockets full in the JC12 ATC?

Answer 34

76 mm (3.0").

Question 35

What is the maximum tool diameter with adjacent pockets empty in the JC12 ATC?

Answer 35

125 mm (4.92").

Question 36

What coolant tank capacity does the JC12 have?

Answer 36

116 US Gallons.

Question 37

What is the JC12’s coolant management feature to prevent chip buildup?

Answer 37

A 'shower coolant system' with up to 10 adjustable flushing nozzles.

Question 38

How many chip augers does the JC12 have, and where are they located?

Answer 38

Five augers; four in the Y-axis (two middle and two outer) and one in the X-axis.

Question 39

What is the purpose of the ATC auto door on the JC12?

Answer 39

Prevents chips or coolant from entering the tool magazine, reducing contamination risk.

Question 40

What is the optional CTS pressure available for the JC12?

Answer 40

Up to 300 psi for coolant-through spindle.

Question 41

What is the minimum air pressure required for the JC12?

Answer 41

5.5 bar (80 psi).

Question 42

What is the electrical power requirement for the JC12?

Answer 42

220 volts, 3-phase, 60 Hz.

Question 43

What is the KVA rating of the JC12 with CTS?

Answer 43

37 KVA.

Question 44

What is the breaker size recommended for the JC12?

Answer 44

98 Amp.

Question 45

What is the required floor space for the JC12?

Answer 45

4,208 x 3,484 x 3,080 mm (166" x 138" x 122").

Question 46

What is the weight of the JC12?

Answer 46

8,600 kg (18,960 lbs).

Question 47

What are the shipping dimensions for the JC12, including front guarding?

Answer 47

4.20 x 3.84 x 3.08 m (166" x 138" x 122") for the main machine and 3.72 x 2.18 x 1.25 m (146" x 86" x 49") for front guarding.

Question 48

What is the gross weight of the JC12 with front guarding included?

Answer 48

10,040 kg (22,135 lbs).

Question 49

What structural feature enhances rigidity and performance in the JC12?

Answer 49

Precision hand-scraped joints to improve machine geometry and limit effects like roll, pitch, and yaw.

Question 50

How does the JC12 manage chips for extended operation?

Answer 50

Features five augers and a shower coolant system to flush chips and manage coolant.