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YCM Bridge Mill Mastery | EAGLE MACHINE INC. > YCM JD322 6K > Flashcards

YCM JD322 6K Flashcards

1
Q

What are the linear axis travels of the JD322?

A

X-axis: 125.98”, Y-axis: 86.61”, Z-axis: 30”.

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2
Q

What is the table load capacity of the JD322?

A

The table supports up to 26,455 lbs.

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3
Q

What material is the JD322 bed made from?

A

Meehanite cast iron for high stiffness and vibration damping.

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4
Q

What type of guideways are used in the JD322?

A

55mm roller guideways in X and Y axes; box ways in the Z-axis.

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5
Q

What is the ballscrew pitch and diameter in the JD322?

A

X: 0.79” pitch, 2.48” diameter; Y: 0.63” pitch, 2.17” diameter; Z: 0.39” pitch, 1.77” diameter.

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6
Q

What is the purpose of the JD322’s Step Bridge Design?

A

It distributes saddle weight and machining forces evenly, improving accuracy and tool life.

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7
Q

What is the linear positioning accuracy of the JD322 without scales?

A

X: ±0.00098”, Y: ±0.00059”, Z: ±0.00039”.

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8
Q

What is the repeatability of the JD322 without scales?

A

X: ±0.00059”, Y: ±0.00039”, Z: ±0.00027”.

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9
Q

What features ensure thermal stability in the JD322?

A

Fixed, pre-tensioned double-nut ballscrews, spindle chiller, and grease lubrication.

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10
Q

How do the guideways in the JD322 affect machining precision?

A

Cylindrical rollers in X and Y axes and box ways in Z dampen vibrations, enhancing stability.

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11
Q

What spindle interface is used in the JD322?

A

Dual Contact BBT50/CAT50 taper.

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12
Q

What is the maximum spindle speed of the JD322?

A

Up to 6,000 RPM.

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13
Q

What is the spindle power rating for the JD322?

A

Max power: 35 HP; Continuous: 30 HP.

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14
Q

What is the maximum spindle torque of the JD322?

A

488 ft-lbs at 60% ED.

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15
Q

What is the constant torque range for the JD322 spindle?

A

44 to 375 RPM.

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16
Q

How is the JD322 spindle cooled?

A

A spindle chiller maintains thermal stability.

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17
Q

What are the dimensions of the JD322 table?

A

118.11” x 70.87”.

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18
Q

What is the maximum workpiece size for the JD322?

A

Length: 118.11”, Depth: 70.87”, Height: 30”.

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19
Q

How many T-slots does the JD322 table have?

A

Nine T-slots, 1.102” width, 7.87” pitch.

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20
Q

What is the height of the JD322 table from the floor?

A

40.55”.

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21
Q

What is the standard tool capacity of the JD322’s ATC?

A

60 tools.

22
Q

What is the maximum tool diameter for the JD322’s ATC?

A

All pockets full: 4.92”; Adjacent pockets empty: 9.45”.

23
Q

What is the maximum tool length and weight for the JD322?

A

Length: 13.78”; Weight: 44 lbs.

24
Q

What is the tool selection method in the JD322 ATC?

A

Bi-directional, random access.

25
Q

What is the purpose of the ATC Auto Door in the JD322?

A

To minimize chips and coolant contamination in the tool magazine.

26
Q

What control system does the JD322 use?

A

FANUC 200FB+ with a 10.4” LCD screen.

27
Q

What is the block processing time of the JD322’s FANUC control?

A

1.0ms with 400-block look-ahead.

28
Q

What industries is the JD322 best suited for?

A

Aerospace, medical, automotive, and die mold applications.

29
Q

What are the connectivity options in the JD322 FANUC control?

A

Ethernet, USB, and RS-232C.

30
Q

What is the Fast Cycle-Time Technology (FCT) in the JD322?

A

It enhances tapping speeds and reduces cycle times.

31
Q

What is the coolant tank capacity of the JD322?

A

158 gallons.

32
Q

What is the chip conveyor system in the JD322?

A

Dual augers with front and rear discharge conveyors.

33
Q

What are the coolant management features included in the JD322?

A

Coolant ring, adjustable lock lines, air-blast, wash-down gun, and air gun.

34
Q

What is the purpose of the dual augers in the JD322?

A

To enable long run times without operator intervention.

35
Q

What is the weight of the JD322?

A

73,854 lbs.

36
Q

What is the required floor space for the JD322?

A

437.4” x 242.5” x 170.3”.

37
Q

What is the spindle clamping force in the JD322?

A

4,056.5 lbf.

38
Q

What ensures smooth machining in the JD322’s Z-axis?

A

Box ways dampen vibration and minimize flexing.

39
Q

What machining accuracies are achieved by the JD322 without scales?

A

Positioning accuracy: ±0.00098” for X, ±0.00059” for Y, ±0.00039” for Z.

40
Q

How does the JD322 improve tool life?

A

Step Bridge Design minimizes weight imbalance during machining.

41
Q

What is the spindle speed range for the JD322?

A

44 to 6,000 RPM.

42
Q

What is the spindle’s full horsepower speed in the JD322?

A

375 RPM.

43
Q

What is the purpose of precision hand-scraped joints in the JD322?

A

To enhance structural rigidity, geometry, and reduce electronic compensation.

44
Q

How does the JD322 handle heavy machining operations?

A

High spindle torque of 488 ft-lbs and robust guideways support heavy-duty tasks.

45
Q

What coolant system helps flush chips in the JD322?

A

A coolant shower system with adjustable lock lines.

46
Q

What is the function of the grease lubrication in the JD322 spindle?

A

To reduce maintenance needs and ensure thermal stability.

47
Q

What is the cutting feed rate for all axes on the JD322?

A

394 IPM.

48
Q

What industries would benefit most from the JD322?

A

Aerospace, die mold, and heavy component machining.

49
Q

What is the spindle torque at continuous rating for the JD322?

A

413 ft-lbs.

50
Q

What makes the JD322 suitable for large workpieces?

A

Its large table capacity, extended Y-axis travel, and robust structural design.

YCM Bridge Mill Mastery | EAGLE MACHINE INC. (11 decks)

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