Operating rangeDistance between centres 1000, 1500 mmSwing over bed 520 mmSwing over cross slide 290 mmChuck diameter 250/315 mm

SpindleSpindle bore 77 mmSpindle nose ISO 702/III B8Internal taper metric 85Spindle speed range – 1st speed step 7-650 rev./min.-1

Spindle speed range – 2nd speed step 30-2600 rev./min.-1

Spindle driveTorque MKmax 525 NS1 main motor output 11 kWS6 main motor output (when overloaded) 15 kWNumber of speed steps 2

The carriages and the driveCross slide feed range 1-3000 mm/minCross-slide rapid traverse 3 m/minLongitudinal slide feed range 1-5000 mm/minLongitudinal slide rapid traverse 5 m/minTravel range X-axis 270 mmTravel range Z-axis 950, 1450 mm

TailstockTailstock sleeve diameter 80 mmInternal taper of tailstock sleeve Morse 5Tailstock sleeve stroke 160 mm

Tool postTool-holding fixture MULTIFIX C

Control systemHEIDENHAIN MANUAL plus 4110SIEMENS 810 D Manual TurnFANUC 0i-TC Manual GuideFAGOR 8055-A TC

Machine tool sizeLength including the chip conveyor 4110, 4610 mmLength without the chip conveyor 2790, 3290 mmWidth x Height 1560 x 1800 mm

Weight (without special accessories) 2700, 2900 kg

Standard:• voltage 3 x 400V/50Hz• spindle bore, Ø 77 – DIN B8• tool-holding fixture MULTIFIX C with holder CD32/150• complete machining area guard cover preventing chip

from flying and coolant from splash, equipped with thesafety glass

• automatic front door lock up• machining area illumination• movable control panel• complete cooling aggregate including the chip pan• central manual lubrication• the operator’s tool kit• 1 x operating manual set• 1 x operating instructions on CD

Extra versions:• spindle bore, Ø 105 mm• spindle nose CAMLOCK D8 for Ø 77 mm• spindle nose BAYONET for Ø 105 mm• spindle nose CAMLOCK D11 for Ø 105 mm• four-position mechanical turret PARAT 2, 3• four-position mechanical turret ALGRA 250, 300• eight-position turret SAUTER with non-driven tools• pneumatic chucking SMW Autoblock• chip conveyor• linear guides and working screws automatic central

lubrication;• versions for different voltages:

3 x 220V/60 Hz, 3 x 440V/60Hz, 3 x 575V/60 Hz

Special accessories:• follow rest, Ø 10 – 115 mm• steady rest, Ø 10 – 115 mm• large steady rest, Ø 100 – 205 mm• large steady rest, Ø 200 – 315 mm• 3-jaws mechanical chuck, Ø 315 mm• 4-jaws mechanical chuck, Ø 315 mm• 4-jaws face-plate, Ø 250 mm• 4-jaws face-plate, Ø 315 mm• spare chuck jaws and flanges• spindle reducing sleeve• fixed centre MK5• live centre MK5• tool holder MULTIFIX, CAPTO, PARAT, SAUTER• anchoring material, transport device• operating manual, Programming Guide (other volumes).

TECHNICAL PARAMETRESAttendance and control

Support of the work pieceThe operator is allowed to movethe tailstock on the bed slidewaysmanually with a possibility to dragit using the saddle. The lever alsoenables the operator to fix the tail-stock in a manual mode. The handwheel enables the operator to pushout the tailstock barrel.

Control systemThere are four control systemvariants available to meet the cus-tomer’s demand by the perspicuousproducers as Heidenhain, Siemens,Fanuc and Fagor, who offer optimaluser comfort in machining theshape-complicated work pieces.

Operating simplicityAll the machine tool controls have beendesigned in a way to consider the basicattendance ergonomic criteria of the machinetool and afford the operator as maximumuser comfort and safety as possible.

We Shape the Shapeswww.trens.sk

With its robust design, high motor outputin connection with other technical parameters the all-purpose electronic latheSE 520 NUMERIC assures its applicationengineering production to a full extent.

Operation and control

Control systemThere are control system variants available to meet the customer’s demand by the perspicuous producersas HEIDENHAIN, SIEMENS andFANUC, who offer optimal user comfortin machining the shape-complicatedwork pieces.

Standard:• voltage 3 x 400V/50Hz• spindle bore, Ø77 – DIN B8• tool-holding fixture MultiSuisse C with holder CD32/150• complete machining area guard cover preventing chipfrom fly-ing and coolant from splash, equipped with thesafety glass• automatic front door lock up• machining area illumination• movable control panel• complete cooling aggregate including the chip pan• central manual lubrication• the operator’s tool kit• 1 x operating manual set• 1 x operating instructions on CD

Extra versions:• spindle bore, Ø105 mm• spindle nose CAMLOCK D8 for Ø77 mm• spindle nose BAYONET for Ø105 mm• spindle nose CAMLOCK D11 for Ø105 mm• four-position mechanical turret PARAT 2, 3• four-position mechanical turret ALGRA 250, 300• eight-position turret SAUTER with non-driven tools• pneumatic chucking SMW Autoblock• chip conveyor• linear guides and working screws automatic centrallubrication• versions for different voltages:3 x 220V/60 Hz, 3 x 440V/60Hz,3 x 575V/60 Hz

Special accessories:• follow rest, Ø10 – 115 mm• steady rest, Ø10 – 115 mm• large steady rest, Ø100 – 205 mm• large steady rest, Ø200 – 315 mm• 3-jaws mechanical chuck, Ø315 mm• 4-jaws mechanical chuck, Ø315 mm• 4-jaws face-plate, Ø250 mm• 4-jaws face-plate, Ø315 mm• spare chuck jaws and flanges• spindle reducing sleeve• fixed centre MK5• live centre MK5• tool holder MultiSuisse, CAPTO, PARAT, SAUTER• anchoring material, transport device• operating manual, Programming Guide (other sets)

SpindleSpindle bore 77 mmSpindle nose ISO 702/III B8Internal taper metric 85Range of the 1st gear 7-650 rev./min.-1

Range of the 2nd gear 30-2600 rev./min.-1

The carriages and the driveCross slide feed range 1-3000 mm/min-1

Cross-slide rapid traverse 3000 mm/min-1

Longitudinal slide feed range 1-5000 mm/min-1

Longitudinal slide rapid traverse 5000 mm/min-1

Travel range X-axis 270 mmTravel range Z-axis 950, 1450 mm

Environmental drives The use of the most modern drives with energy recuperation allows for use of kinetic energy of ma-chine rotating parts upon braking and its recuperation into electric energy which is returned back intothe network. Lower consumption of electric energy in machine operation is an effect for the user. Depending on a type and technological use of a machine; the savings may represent EUR 500 to1,300 per year representing total savings in electric energy up to EUR 13,000 in a 10 year operation.

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Tool postTool-holding fixture MultiSuisse C

Control systemHEIDENHAIN MANUAL plus 4110SIEMENS 810D ManualTurnSIEMENS 840D solution line Manual Machine*FANUC 0i-TC Manual Guide iFANUC 0i-TC Turn Mate i

Machine tool sizeLength including the chip conveyor 4110, 4610 mmLength without the chip conveyor 2790, 3290 mmWidth x Height 1560 x 1800 mm

Weight (without special accessories) 2700, 2900 kg

SE520_Numeric_en_Layout 1 16. 5. 2011 16:42 Page 1

Telephone: +421 32 7412 620

TRENS SK,a. s., Súvoz 1, 911 32 Trenãín,Slovakia

SE 520 NUMERIC

SE 520 NUMERIC CNC LATHE

SE 520 NUMERIC CNC LATHE

Speed and performance

Reliability and accuracyPURPOSE

SE 520 NUMERIC is the type of the machine tool designed for engineering production in medium and batch series or piece production. It has been designed for precision machiningof either simple or shape-sophisticated plastic and metal work pieces. The machine tool hasalso been applicable as a teaching aid for both secondary schools and universities in the fieldof engineering.The machine tool has been operable in either the manual mode using the electronic wheels or, thanks to the up-to-date control system, in the automatic cycle. This creates new options in both piece and batch production.

Constant output in all modes The high-power, digital-controlled adjustable-speedmotor with constant output of 11 kW assures spindle drive at a maximum of 2600 rev./min.-1. The two-speed belt drive transmits the torque to the spindle.

Spindle revolutionsThe continuous electronic spindlespeed adjustment and feed rateensures constant cutting speedwithin the selected speed step,which responds to the questionhow to achieve superior surfaceand minimize miscellaneous time.

Reliability and accuracycomes out of basis and traditions of UHS machines manufactured in our company for several decades,and it is supplemented by a seriesof up-to-date engineering designs.

Accurately ground slidewaysThe machine tool slideways formpart of the high-rigid cast-ironmonolith. There is the special frictionmaterial film on the bed slide tominimize the SLIP STICK effect,whereby to achieve the high posi-tioning accuracy of the working axes.

Heat-balanced spindleThe spindle has been imbedded in the bearings with oblique contactin the front, and in the double-rowroller bearing NNK in the rear whichprovides high accuracy, rigidity andreliability of the spindle.

Positioning dynamics and accuracy of the working axesTo achieve as maximum dynamicsand accuracy as possible each of the movable axes is equippedwith the actuating mechanism andthe preloaded ball screw ensuringmovable axis operating availabilityto a maximum extent.

TurretIt is possible to install a wide rangeof jigs from the simplest quick-actingchucks (MultifixB, C includingCapto holders) through manuallycontrolled revolving turrets (Algra,Parat) to the automatic control toolhead Sauter which allows for considerable saving of machiningprocess incidental times in toolexchange during the machiningprocess.

Versatility/Complexity

Machine designThe machine design makes pos-sible production of the lathe in various versions within the widerange of accessories to meet theuser’s requirements, which allowsfor optimal possibilities for completemachining of shaft and flange workpieces.

Manual and digital control – the lathe is designed for eithermanual operation (as a manuallyoperated centre lathe) or digitalcontrol according to the work pieceshape and requirement after shorttraining of the operator to achievehigh accuracy and higher produc-tivity repeating.

Clamping systemThe work piece is clamped in the manually-operated jaw chuck.It is possible to equip the machinetool with the integrated pneumaticjaw chuck by SMW Autoblock onthe customer’s demand, which willconsiderably speed up chucking of the work piece.

TurretIt is possible to install a wide range ofjigs from the simplest quick-actingchucks (MultiSuisse B, C including-Capto holders) through manually con-trolled revolving turrets (Algra,Parat) tothe automatic control tool head Sauterwhich allows for considerable saving ofmachining process incidental times intool exchange during the machiningprocess.

Reliability and accuracy comes out of basis and traditions of universal machines manufactured in our company for several decades,and it is supplemented by a series of up-to-date engineering designs.

Manual and CNC control– the lathe is designed for either man-ual operation (as a manually operatedcentre lathe) or CNC mode accordingto the work piece shape and require-ment after short training of the operatorto achieve high accuracy and higherproductivity repeating.

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