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Cyclematic Precision Toolroom Lathe CTL-618e
with Automatic Digital Threading Cycle
Cyclematic CTL618e with automatic digital threading cycles
This lathe does not have a threading gearbox, instead computer-controlled servo motor is directly linked to the leadscrew. Just use your finger to select desired thread pitch on the touchscreen display, the threads come out absolutely precise and you totally eliminate problems with specialized threads. This accuracy is ensured by use of Mitutoyo scales and a digital readout display is also provided, enhancing value of the machine.  The display also shows spindle speed, cutting feed rate and DRO functions.

These are available with spindle speeds having top speeds of 4,000 or 6,000 rpm. This model has thread cutting and electric variable speed feeds on the carriage.
CTL-618e toolroom lathe with Digital Threading Control replaces traditional threading gearbox with microprocessor-controlled, servo-driven leadscrew. In the past, when a machinist is faced with a workpiece that calls for thread pitch not supported on a conventional lathe, he has to locate and order a custom gear set and take the time to swap out the gears in the gearbox. This is not economically justifiable unless the volume is large enough. CTL-618e toolroom lathe's design eliminates this time-consuming workaround. With the new digital threading system, the user's wishes with it comes to threading can be easily and immediately realized.

Simply type in the desired thread pitch on the numeric keypad on the touch screen LCD control panel and then start the threading cycle as on other conventional lathes. CTL-618e's system would control and synchronize main spindle rotation and Z-axis feed rate to produce precise threading cycle for the given TPI or mm thread pitch.

Besides being able to cut thread pitches not previously available on manual lathes, noise and vibration during threading are also significantly reduced, because there are actually no more gears in the gearbox.
Since CTL-618e already has custom IC and a LCD panel to enable threading control, the next logical step is to integrate DRO functions into it for an all-in-one versatile machine. And CTL-618e has in-fact done that. DRO capabilities are built-in and come standard with no extra charge. CTL-618e features linear scales on X and Z-axis from Mitutoyo.

For people experienced with the super high precision and immediacy of CYCLEMATIC's toolroom lathes, the CTL-618e adds another dimension of capabilities. It builds on the same foundation as 618EVS toolroom lathe. They are all ideal for super high precision lathe work on small parts (usually those that fit in 5C collets). The guaranteed circular accuracy is 50 millionth of an inch.

video link to Cyclematic 618e demonstration
To download the catalogue in .pdf format Click Here

To see the tooling and options selection page Click Here

  1. The lead screw is driven directly by servo- motor. Through operation of interface, a spindle encoder is used to transfer the motion of lead screw . The L.C.D touch pad showing the data is applied to control.
  2. Rapidl return to the origin is executed by temporarily coming off the tracking mode.
  3. Feeding rate per minute of auto feed is calculated with MODBUS communication protocol interior message data of the converter, so that users cutting precision is available very easily.


control panel on the Cyclematic 618e toolroom lathe with digital thread cutting

This lathe doesn't use threading gearbox, instead computer-controlled servo motor is directly linked to the leadscrew. Just use your finger to select desired thread pitch on the touchscreen display, the threads come out absolutely precise and you totally eliminate problems with specialized threads. The display also shows spindle speed, cutting feed rate and DRO functions.
 
THE FIRST CHOICE OF TOOLMAKERS !
  • Good for pitch and module turning processing without any gears in gearbox. Easy exchange of inch and metric system, accuracy goes up to three digits after decimal point.
  • Digtal data shows R.P.M. of spindle and tool infeed to let operator arrange best possible turning process combination.
  • Digtal data showing electric current for easy checking overload turning.
  • Rapid retract function is available for shortened pitch module turning processing time.

CTL-618EVS
Spindle
Capacity 		With Chuck Over Carrage
150  mm  6" 
 With Chuck Over  Bed
152 mm    6"
With Expanding Collets
76 mm     3"
With Round 5C Collets
27 mm    1-1/16"
With Hexagon 5C Collets
22 mm   7/8"
With Step Chucks
27 to 152.4 mm    1-1/16" to 6" 
Spindle Nose Diameter
55.6 mm    2.189"
Spindle Nose I.D/O.D
5C - 10° / 4° Taper
Spindle Speeds (Variable)
0-4000 R.P.M. Optionally to 6,000 rpm
Inverter Spindle Motor
3  HP
Hole Through Spindle
31.75 mm      1-1/4"
Bar stock diameter (5C collet)
27 mm  ( 1-1/16" )
Hole through spindle
31.75 mm     1-1/4"
Distance Between Centers
457 mm     18"
Swing Over Bed
280 mm      11"
Swing Over Carriage
230 mm     9"
Swing Over Cross Slide
152.4 mm     6"
Carriage Power Feed Range
8~178 mm    5/16" ~ 7"
Cross Slide Power Feed Range
5~102 mm ( 3/16" ~ 4*
Cross Slide Travel
152.4 mm ( 6" )
Quick-action Compound Slide Travel
2.5 mm ( 0.1" )
Compound Slide Travel
76 mm  ( 3" )
Coolant Pump
1/8HP
D.C. Feed Motor
220V , 70W

Power Supply

230/3/60 or 220/1/60
Tailstock Spindle Travel
95 mm  ( 3-3/4" )
Range of Threads in Gear Box
11-108 per inch
Number of Thread Changes
( 36 Metric ) 36
Net  Weight (approx)
(1010  kgs)  2220 lbs.
Machine dimensions (L x W x H)
1850 x 750 x 1700 mm
( 73" x 30" x 67" )