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ROUNDTOP MACHINERY INDUSTRIES CO., LTD.
The fact that ROUNDTOP has had very rapid growth since our establishment has not changed our view that every day is an opportunity for even greater achievement. In 1979 we were producing only one model of conventional milling machine. Now we are one of the most diversified manufacturers producing vertical machining centers, horizontal machining centers, double column machining centers, Multi-Axis/5-Face Machining Centers, vertical turning centers, high speed machining centers and CNC lathes.

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JF-35120
 
Please visit our on-line digital catalogs for details.


 

Features

  1. Hardened and ground bedways are made of high tensile cast iron to obtain high rigidity.
  2. Broad slideways not only allow heavy cutting and retain accuracy even at a rapid traverse, but also give smooth and steady movement.
  3. Gear-driven headstock with precision ground and hardened shave & gears ensures heavy cutting.
  4. Headstock is equipped with Auto. Lubrication pump to ensure the smooth rotation and power transmission of gears and to extend the life expectancy of gears.
  5. The main spindle is made of CR-MO alloy steel & supported at 3 points with 3 high precision taper roller bearings.


SPECIFICATION \ MODEL JF-35 SERIES JF-40 SERIES JF-45 SERIES JF- 50 SERIES
JF3568-800 JF4060-800 JF4560-800 JF5060-800
Capacity Swing Over Bed
880
1010
1135
1275
Swing Over Gap
1340
1470
1600
1740
Swing Over Cross Slide
610
740
870
1010
Distance Between Centers
1500 mm - 2000 mm
Width Of Bed
560
Length Of Gap
600
Main Spindle Spindle Nose
A2-11 (Opt. A2-15, A2-20)
Spindle Bore
153 mm (Opt. 230 mm, 305 mm, 410 mm, 508 mm)
Taper Of Spindle
1 / 20
Spindle Speeds (60 Hz)
18 - step, 5 - 630 rpm, or (3 - 300 rpm)
Carriage Cross Slide Travel
670
Compound Rest Travel
400
Tailstock Quill Travel
300
Quill Diameter
115
Taper Of Center
MT # 6
Feed & Thread Lead Screw
50 2TPI or Pitch 12 mm
Inch Thread No Range
60 Kinds 1 / 2 - 28 TPI
Metric Thread No Range
60 Kinds 1 - 56 mm
D.P. No Range
DP 2 - 112
Module Pitches No Range
MP 0.25 - 14
Sliding Feeds (LONG)
0.06 - 3.5 (0.024" - 0.1378")
Surfacing Feeds (CROSS)
1 / 2 of Longitudinal feeds
Power Main Drive Motor
15 HP (Opt. 20 HP, 25 HP, 30HP)
Coolant Pump Motor
1 / 8 HP
Related Products
Whatever you need for milling and turning we offer the best.
 
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