Unit E2, Doulton Road Trading Estate, Rowley Regis, West Midlands, B65 8JQ
Tel: 01384-569821    Fax: 01384-633946

The MicroSprint 26 - Specification

Work capacity

Max. Diameter Bar

26mm

Max. Diameter in 125mm chuck

90mm

Max. Die Head size

25mm

Headstock

Spindle

Hardened and Ground

Hole through spindle assy.

32mm

Spindle bearings front and rear

Angular contact, matched pairs

Spindle bearing diameter, front

70mm bore

Spindle nose

A2-4 BS. 4442 fitted with sleeves and nosecap to accept T980 series multibore collet as standard. Spring collet systems available

Spindle drive

Type

Poly-vee belt drive from DC variable speed motor

Spindle speeds

50, 60, 70, 85,100,120, 140, 170, 200, 240, 290, 350, 420, 500, 600, 700, 850,1000, 1200, 1450, 1720, 2000, 2500, 3000, 3500 (All available within a single program)

DC motor power

6.45 kW continuous rated

DC motor type

112 frame shunt wound with field control and tacho

Power supply

Electrical rating

415/440 volts, 3 phase, 50 hertz or as appropriate to local supply

Power requirement

9.5 kW continuous

Turret

Number of faces

6, random index, unidirectional

Indexing time (max.)

1.2 sec. stn to stn; 2.5 sec. stn 1 to 5

Dia of tool holes

25.4mm

Centre of holes to top of slide

70mm

Turret slide

Max. effective working stroke

200mm

Max. movement

200mm

Feedrate range, stepless

0-2500mm/min

Number of feeds

Infinite, forward or back

Rapid traverse rate

8000mm/min

Drive

Recirculating ballscrew driven by DC servo motor via toothed belt

Max. thrust

8000 Newtons (1,798lbf)

Cross slides

Type

High thrust independent, two

Slide drives

Hydraulic/pneumatic cylinder

Max. thrust

4830 Newtons (1086 lbf)

Tool size

12.7mm

Max. distance between posts

170mm

Back feeding

Programmable on both slides

Slide stroke to centerline

76mm

Feedrate range, stepless

0-2000mm/min

Rapid traverse rate

6000mm/min

Overhead slide

Type

Vertical 90° for recess/part off

Slide drive

Hydraulic/pneumatic cylinder

Max. thrust

4830 Newtons (1086 lbf)

Tool size

12.7mm

Stroke

76mm

Tool post to centerline, max.

85mm

Longitudinal adjustment

15mm

Feedrate range

0-2000mm/min

Rapid traverse rate

6000mm/min

Lubrication

Spindle

Greased for life with Kluber Isoflex

Slideways, index bolt and turret

13 point automatic lubrication capacity 0.5 litres Mobile Vactra 2 or equiv.

Coolant system

Standard

Centrifugal pump

Application

Overhead supply and turret nozzles (selected on control panel)

Flowrate

25 litres/min

Reservoir capacity

75 litres
(Heavy coolant oils above ISO 20 may need a more powerful geared pump)

Barfeed

Type

Pneumatic double tube, sound attenuated.

Bar Capacity

4 to 26mm. dia x 3 metres long

Air

Supply

80 p.s.i. (5.62 Kg/cm.sq)

Consumption typically

3 cubic ft/min (0.085 cub. m/min)

Dimensions

Control

Type

Computer Enhanced Turning CET Special purpose system, based upon the INTEL iAPX 188, 16 bit microprocessor with Mylar touch sensitive key panel with vertical line cursor function programming.

Manual controls

Manual control of all slides, spindle, coolant and turret from control panel

Data entry

a) Manual by function prompt and numeric keys. Function LED's give visibility of the line being programmed plus two before and two lines after.

b) By 'teach and learn' using electronic handwheel.

Functions controlled

Turret slide; feedrate, check and stop positioning. Datum position. Position of index.

Sequencing of front, rear and top slides. Selection of spindle speeds and direction of rotation, auxiliary functions, collet operation and dwell times. Simultaneous operation of slides with fully independent overlap.

Turret canned cycles

Forward (rapid, feed and dwell); Return; (with or without feed) woodpecker drill; feed bar to stop; tapping.

Additional features

Quantity counter, diagnostic display.

Safety

Safety guard

Partially enclosed, sliding with electro-mechanical interlock.

Spindle brake (failsafe)

Integral with spindle motor, stops within 1.5 secs from 3500 rpm.

Machines incorporate safety and design features, safety devices, guarding arrangements and are supplied with such information as to their safe operation and use, that we believe, so far as is reasonably practical, they are safe and are in compliance with the legal requirements of the Health and Safety at Work etc Act 1974

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