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New Knee Type Milling Machine: JY-28

JY-28

(Auto)X1000 / Y400 / Z440
(Manual)X1000 / Y400 / Z440
  • 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 (SHB) Inverter (CHB)

    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.
  • Horizontal milling gear mechianism, maximum speed 1288/50HZ.
  • 9 Steps
    60HZ 92-204-241-251-536-590-660-1311-1614(RPM)
    50HZ 73-163-193-201-428-471-527-1056-1288(RPM)
  • Horizontal bracket.
Model Unit JY-28SHB JY-28CHB
Travel Longitudinal travel (M./A.) mm 1000
Cross travel (M./A.) mm 400
Vertical travel (M./A.) mm 440
Slideway X/Y/Z type △ / □ / □
Quill travel mm 140
Overarm travel mm 700
Overarm swivel degree 360
Quill swivel (R&L)/ (F&B) degree ±45/Fixed
Dist. from spindle nose to table mm 100-540
Spindle centerline to column mm 180-880
Table Dimension mm 1370 x 300
T-slots (Width x No. x Pitch) mm 16 x 3 x 70
Max. table load kg 300
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
Main/Horizontal taper type NT40
Quill Diameter mm 110
Horizontal spindle speed 60HZ rpm 92-1614 (9 steps)
50HZ 73-1288 (9 steps)
Motor Main/Horizontal spindle HP 5
X-axis traverse HP 1/2
Z-axis elevation HP 1/2
Feedrate X-axis speed mm/min 30-1300(9 setps)
Z-axis speed mm/min 345
Machine Space(L x W x H) mm 2270 x 3100 x 2520
Packing dimension(L x W x H) mm 1800 x 2200 x 2100
Net Weight kg 2250
Gross Weight kg 2450

Standard Accessories:

  1. Draw bar
  2. Tool box and tools
  3. Tapping equipment of spindle
  4. Front finned bellows cover on Y axis
  5. Back chip cover on Y axis
  6. Working lamp
  7. Auto lubrication system
  8. X axis gear box
  9. Z Axis Rapid up/down
  10. Deluxe type operation panel
  11. Electric box
  12. Ball scerw (X/Y)
  13. Horizontal bracket x 2 set
  14. Horizontal arbor x 1 (25.4 or 27mm)

Optional Accessories:

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