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YCM Mill Mastery |EAGLE MACHINE INC. > YCM JC16 > Flashcards

YCM JC16 Flashcards

1
Q

What are the X, Y, and Z-axis travel dimensions of the JC16 machine?

A

X-axis: 64.2” (1,630 mm), Y-axis: 33.9” (860 mm), Z-axis: 30” (762 mm).

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2
Q

What is the maximum table load capacity of the JC16?

A

4,409 lbs (2,000 kg).

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3
Q

What type of motors and encoders are used in all axes of the JC16?

A

Direct Drive motors with Absolute positioning encoders.

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4
Q

Why are Direct Drive motors with Absolute encoders beneficial?

A

They provide backlash-free positioning for reliable and stable accuracy, eliminating the need for zero-return.

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5
Q

What type of casting is used in the JC16, and why is it advantageous?

A

High-quality, rugged MEEHANITE™ castings ensure high stiffness, rigidity, and vibration dampening, resulting in superior thermal stability and cutting performance.

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6
Q

How does the JC16 minimize thermal growth in its design?

A

By using fixed, pre-tensioned ballscrews in all axes.

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7
Q

What are the sizes of the roller guideways in the X, Y, and Z axes?

A

45mm in the X & Y axes (outer guideways) and 55mm in the Z-axis.

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8
Q

What type of guideways are used on the inner Y-axis of the JC16?

A

35mm NR Type Linear Ball-Type Guideways.

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9
Q

What is the benefit of using cylindrical roller guideways in the JC16?

A

They provide greater contact area and vibration-damping characteristics, resulting in improved rigidity, cutting performance, and surface finish.

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10
Q

What is the rapid traverse rate of the JC16 in the X and Y axes?

A

945 inches per minute (IPM).

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11
Q

Describe the spindle of the JC16.

A

It has a heavy-duty 10,000 rpm spindle with Dual Contact CAT50 taper, grease lubrication, and a spindle chiller.

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12
Q

What is the maximum spindle motor power and torque of the JC16?

A

30 HP (22 kW) and 261 ft-lbs (354 Nm) of torque.

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13
Q

What are the benefits of the Dual Contact BBT50 spindle taper?

A

Provides increased rigidity and stability for heavy-duty cutting applications.

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14
Q

How many tools does the standard Automatic Tool Changer (ATC) hold?

A

32 tools, with an optional upgrade to 40 tools.

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15
Q

What is the tool-to-tool change time for the JC16’s ATC?

A

4.2 seconds.

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16
Q

What is the chip-to-chip time for the JC16’s ATC?

A

9.4 seconds.

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17
Q

How does the JC16 ensure precision in its machine structure?

A

Through precision hand-scraped joints that increase structural rigidity and minimize electronic compensation.

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18
Q

What features contribute to the JC16’s efficient chip and coolant management?

A

Spindle coolant ring with adjustable lock lines, cutting air-blast, coolant wash-down gun, air gun, and a unique shower coolant system.

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19
Q

What is the purpose of the JC16’s shower coolant system?

A

To effectively flush and remove chips from the machine’s interior using up to 10 adjustable coolant flushing nozzles.

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20
Q

How many augers are included in the JC16, and where are they located?

A

Four augers; two on either side of the table in the Y-axis.

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21
Q

What type of chip conveyor does the JC16 have?

A

A rear discharge scraper type lift-up chip conveyor.

22
Q

What is the function of the ATC auto door on the JC16?

A

To minimize chips and coolant from entering the tool magazine area, reducing the risk of contamination and potential damage.

23
Q

What is the maximum tool length and weight for the JC16’s ATC?

A

Maximum tool length is 13.78” (350 mm), and maximum tool weight is 44 lbs (20 kg).

24
Q

What is the standard table size of the JC16?

A

68.1” x 33.9” (1,730 mm x 860 mm).

25
Q

What is the maximum workpiece size the JC16 can handle?

A

Length: 64.17” (1,630 mm), Depth: 33.9” (860 mm), Height: 30” (762 mm).

26
Q

What is the height of the tabletop from the floor on the JC16?

A

40.94” (1,040 mm).

27
Q

What type of tool selection method does the JC16’s ATC use?

A

Bi-directional, random access.

28
Q

What are the positioning accuracies of the JC16 without scales?

A

X-axis: ±0.00055”, Y-axis: ±0.00039”, Z-axis: ±0.00039”.

29
Q

What are the repeatability accuracies of the JC16 without scales?

A

X-axis: ±0.00039”, Y-axis: ±0.00027”, Z-axis: ±0.00027”.

30
Q

What ambient temperature is recommended for optimal accuracy of the JC16?

A

68°F ± 3°F in a temperature-controlled environment.

31
Q

What are the benefits of the JC16’s fixed, pre-tensioned ballscrews?

A

They enhance rigidity, stability, and precision while minimizing thermal growth.

32
Q

What is the purpose of the spindle chiller unit in the JC16?

A

To provide thermal stability and prolong spindle life.

33
Q

Can the JC16 be equipped with a Coolant Through Spindle (CTS) system?

A

Yes, a 1,000 psi CTS can be easily added as an option.

34
Q

What kind of bearing lubrication is used in the JC16’s spindle?

A

Grease lubrication.

35
Q

What is the cutting feed rate of the JC16 in all axes?

A

Up to 394 IPM (10 m/min).

36
Q

What type of bed construction does the JC16 have?

A

Meehanite cast iron bed construction for enhanced rigidity.

37
Q

What are the ballscrew diameters for the X, Y, and Z axes?

A

All axes use 45 mm (1.77”) diameter ballscrews.

38
Q

What is the function of the heavy tool and big tool functions in the JC16’s ATC?

A

To accommodate larger and heavier tools safely during automatic tool changes.

39
Q

How does the JC16 handle heavy machining operations?

A

With cast ballscrew housings directly into the machine base and saddle for optimal stiffness.

40
Q

What is the standard color scheme of the JC16?

A

YCM White, Blue, and Black.

41
Q

What are the electrical requirements for the JC16?

A

220 Volts, 3 Phase, 60 Hertz, with a breaker size of 162 Amps.

42
Q

What is the coolant tank capacity of the JC16?

A

174 US gallons (660 liters).

43
Q

What are the dimensions required for the JC16’s floor space?

A

184.25” (W) x 193.18” (D) x 135.07” (H).

44
Q

What is the net weight of the JC16 machine?

A

34,172 lbs (15,500 kg).

45
Q

How does the JC16 ensure efficient chip removal during long run-times?

A

With four augers and a rear discharge scraper type lift-up chip conveyor.

46
Q

What type of guideways are used to enhance the JC16’s load capacity?

A

High load capacity roller guideways and linear ball-type guideways.

47
Q

What is the benefit of the JC16’s inverter-type cam-box motor in the ATC?

A

It allows for easy ATC recovery in the event of a mishap.

48
Q

What are the recommended conditions for maintaining the specified machine tolerance of the JC16?

A

Use of foundation pads and anchoring bolts, and maintaining an ambient temperature of 68°F ± 3°F.

49
Q

How does the JC16’s design contribute to longer overall service life?

A

Through the use of cylindrical roller guideways and robust machine construction.

50
Q

What kind of air supply is required for the JC16?

A

Minimum pressure of 80 psi (5.5 bar) with an air dryer for inlet air temperature of 35°C or below.

YCM Mill Mastery |EAGLE MACHINE INC. (17 decks)

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