YCM JD422 10K Flashcards
What are the axis travels of the JD422?
X-axis: 165.35”, Y-axis: 86.61”, Z-axis: 30”.
What is the table load capacity of the JD422?
The table supports up to 33,069 lbs.
What material is used in the JD422’s bed construction?
Meehanite cast iron for stiffness and vibration damping.
What type of guideways are used in the JD422?
55mm roller guideways in X and Y axes; box ways in the Z-axis.
What is the ballscrew pitch and diameter in the JD422?
X: 0.79” pitch, 2.76” diameter; Y: 0.63” pitch, 2.17” diameter; Z: 0.39” pitch, 1.77” diameter.
What is the Step Bridge Design, and how does it benefit the JD422?
It distributes saddle weight and machining forces evenly, improving accuracy and tool life.
What is the linear positioning accuracy of the JD422?
X: ±0.00059”, Y: ±0.00039”, Z: ±0.00027”.
What is the repeatability of the JD422?
X: ±0.00039”, Y: ±0.00027”, Z: ±0.00019”.
How does the JD422 achieve thermal stability?
It uses fixed, pre-tensioned double-nut ballscrews, spindle chiller, and air-oil lubrication.
What ensures machining accuracy in the JD422?
Linear scales with 0.010-micron resolution and box ways in the Z-axis for vibration damping.
What spindle interface does the JD422 use?
Dual Contact BBT50/CAT50 taper.
What is the spindle power of the JD422?
Max power: 30 HP; Continuous power: 25 HP.
What is the maximum spindle torque of the JD422?
261 ft-lbs at 60% ED.
What is the spindle speed range of the JD422?
44 to 10,000 RPM.
How is thermal stability maintained in the spindle of the JD422?
With a spindle chiller and air-oil bearing lubrication.
What are the dimensions of the JD422 table?
157.48” x 70.87”.
What is the maximum workpiece size for the JD422?
Length: 157.48”, Depth: 70.87”, Height: 30”.
How many T-slots are on the JD422 table?
Nine T-slots, 1.102” wide, 7.87” pitch.
What is the height of the JD422 table from the floor?
40.55”.
What material handling capability does the JD422 table have?
Supports workpieces weighing up to 33,069 lbs.
What is the standard tool capacity of the JD422’s ATC?
60 tools.
What is the maximum tool diameter for the JD422’s ATC?
All pockets full: 4.92”; Adjacent pockets empty: 9.45”.
What is the maximum tool length and weight for the JD422?
Length: 13.78”; Weight: 44 lbs.
What is the tool selection method in the JD422 ATC?
Bi-directional, random access.
What is the purpose of the ATC Auto Door in the JD422?
To minimize chips and coolant contamination in the tool magazine.
What control system does the JD422 use?
FANUC 200FB+ with a 10.4” LCD screen.
What is the block processing time of the JD422 FANUC control?
1.0ms with 400-block look-ahead.
What are the connectivity options in the JD422 FANUC control?
Ethernet, USB, and RS-232C.
What industries is the JD422 best suited for?
Aerospace, medical, automotive, and die mold applications.
What is Fast Cycle-Time Technology (FCT) in the JD422?
It enhances tapping speeds and reduces cycle times.
What is the coolant tank capacity of the JD422?
158 gallons.
What is the chip conveyor system in the JD422?
Dual augers with front and rear discharge conveyors.
What features improve chip and coolant management in the JD422?
Coolant ring, adjustable lock lines, air-blast, wash-down gun, and air gun.
What is the purpose of the dual augers in the JD422?
To enable long run times without operator intervention.
What ensures effective chip removal in the JD422?
A heavy-duty conveyor system and efficient coolant flow.
What is the weight of the JD422?
80,468 lbs.
What is the required floor space for the JD422?
490” x 235” x 170.3”.
What is the spindle clamping force in the JD422?
4,497 lbf.
What machining accuracies are achieved by the JD422?
Positioning accuracy of ±0.00059” in X-axis, ±0.00039” in Y-axis, and ±0.00027” in Z-axis.
How does the JD422 handle heavy machining operations?
With robust guideways, a 30 HP spindle, and a table capacity of 33,069 lbs.
What is the constant torque range for the JD422 spindle?
44 to 500 RPM.
What industries would benefit most from the JD422?
Heavy machining industries like aerospace and automotive.
How does the JD422 maintain structural integrity?
Precision hand-scraped joints and Meehanite castings ensure rigidity and stability.
What is the rapid traverse rate of the JD422?
591 IPM in X and Z axes, 787 IPM in Y-axis.
What is the spindle torque at continuous rating for the JD422?
211 ft-lbs.
What is the function of precision hand scraping in the JD422?
To improve structural geometry and minimize electronic compensation.
How does the JD422 ensure long tool life?
Its Step Bridge Design minimizes weight imbalance during machining.
What coolant system helps flush chips in the JD422?
A coolant shower system with adjustable nozzles.
What are the cutting feed rates in the JD422?
394 IPM in all axes.
What is the power source requirement for the JD422?
220 volts, 3-phase, 90 KVA, with a 220 AMP breaker.
