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New Knee Type Milling Machine: JY-20A

JY-20A

(Auto)X700 / Y440 / Z460
(Manual)X750 / Y440 / Z460
  • The main casting part is made of meehanite casting.
  • The spindle run on high precision P4 class bearing.
  • The spindle is one piece machined from SCM440 alloysteel, thermal refining, high-frequency and precision polishing.
  • Milling head type:
  • -Steps (AS) Inverter (AC)

    10 Steps
    60HZ 75-125-195-280-420-650-1050-1610-2360-3500(RPM)
    50HZ 60-100-160-230-350-530-860-1320-1940-2870 (RPM)

    -Inverter type used YASKAWA VFD.

  • Used type B belt drive.
  • Hardened and ground X,Y,Z axes slideway.
  • Turcite-B coated on X Y ways.
  • Square way design on Y and column slideway.
  • X/Y axis double nut ball screw.
Model Unit JY-20AS JY-20AC
Travel Longitudinal travel (M./A.) mm 750/700 (Opt. 850/800)
Cross travel (M./A.) mm 440
Vertical travel (M./A.) mm 460
Slideway X/Y/Z type △ / □ / □
Quill travel mm 140
Overarm travel mm 570
Overarm swivel degree Fixed
Quill swivel (R&L)/(F&B) degree ±45/Fixed
Dist. from spindle nose to table mm 100-560
Spindle centerline to column mm 185-755
Table Dimension mm 1270 x 254 (Opt. 1370 x 254)
T-slots (Width x No. x Pitch) mm 16 x 3 x 70
Max. table load kg 200
Milling head type 10 Steps Inverter
Spindle Speed 60Hz rpm 75-3500 55-3600
50Hz rpm 60-2870
Vertical feeds mm/rev 0.04/0.08/0.15
Taper type NT40
Quill Diameter mm 110
Motor Main spindle HP 5
Z-axis elevation HP 1
Feedrate Z-axis speed mm/min 1150
Machine Space(L x W x H) mm 2250 x 2520 x 2420
Packing dimension(L x W x H) mm 1770 x 1870 x 2040
Net Weight kg 1750
Gross Weight kg 1900

Standard Accessories:

  1. Draw bar
  2. Tool box and tools
  3. Tapping equipment of spindle
  4. Chip cover on Y axis
  5. Working lamp
  6. Auto lubrication system
  7. Z Axis Rapid up/down
  8. Deluxe type operation panel
  9. Electric box
  10. Ball scerw (X/Y)

Optional Accessories:

  1. Power drawbar
  2. Power feed(X/Y)
  3. Servo feed(X/Y)
  4. Digital readout (DRO)
  5. Adjustable Automatic lubrication system
  6. Coolant system(Pump 1/8 HP)
  7. Chip tray
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