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Brand: Optimum · Stürmer Maschinen, Germany

Precision guide and drawbar turning machine OPTIturn TH 4620D

Article no. 3462130Universal lathes

Turning diameter
460 mm
Distance between centres
2060 mm
Spindle speed
25 – 2000 rpm
Spindle bore
58 mm
Spindle power
5.5 kW
Power supply
400V/3Ph ~50 Hz

Price on request

If the machine is not in the showroom, the delivery time is 7 working days. We confirm availability when we accept the order. Delivery times

Call
  • Official importer of Stürmer Maschinen
  • Warranty and out-of-warranty service
  • Delivery by arrangement
  • Technical experts at your disposal

Technical specifications

Basic features
Turning diameter460 mm
Distance between centres2060 mm
Spindle speed25 – 2000 rpm
Spindle bore58 mm
Spindle power5.5 kW
Power supply400V/3Ph ~50 Hz
Weight1965 kg
Dimensions and weights
Length (product) approx.3265 mm
Width/depth (product) approx.1065 mm
Height (product) approx.1550 mm
Net weight approx.1965 kg
Work areas
Center height230 mm
Distance between center2060 mm
Swing diameter above machine bed460 mm
Swing diameter in bed bridge690 mm
Swing diameter above planing slide270 mm
Turning length in bed bridge240 mm
Bed width300 mm
Equipment
Digital position indicatorDPA 31 Plus
Speed range
Number of gears12
Electrical Data
Drive motor output5.5 kW
Mains frequency50 Hz
Total rated value5.8 kW
Cooling lubricant system
Cooling lubricant system coolant pump output125 W
Spindle
Spindle chuckCamlock DIN ISO 702-2 No. 6
Tool holder max. chuck height25 mm
Spindle coneMT 6
Tailstock
Tailstock chuckMT 4
Tailstock quill stroke130 mm
Tailstock quill diameter60 mm
Pitches
Metric pitch0.1 – 14 mm/rev
Number of metric pitches41
Imperial pitch112 – 2 TPI/1"
Number of imperial pitches41
Diametrical pitch4 – 112 DPI
Number of diametrical pitches50
Modular thread pitch0.1 – 7 mm/rev
Number of modular thread pitches34
Travel
Travel upper slide125 mm
Travel cross slide285 mm
Travel carriage saddle1805 mm
Feed
Longitudinal feed range0.031 – 1.7 mm/rev
Number of longitudinal feeds42
Flat feed range0.014 – 0.784 mm/rev
Number of flat feeds42

Features

  • Hardened and ground Z-axis guideway
  • Guaranteed concentricity of the spindle nose ≤ 0.015 mm
  • Shafts, wheels and main spindle run in an oil bath
  • Lead screw cover
  • Precisely machined slide
  • All guides can be adjusted using gibs
  • Mechanical longitudinal feed cut-off of the bed slide with four adjustable eccentrics
  • Right/left rotation on the bed slide switchable via switching spindle
  • Two-channel safety electronics
  • Central lubrication in the bed slide
  • Upper slide adjustment range ± 90
  • Smooth-running gear wheels, hardened and ground, mounted on 2 adjustable precision tapered roller bearings
  • Switch with life cycle calculation, tested in accordance with EN ISO 13849
  • Large chip guard with integrated LED machine lamp
  • Handwheels with adjustable fine scaling 0.04 / 0.02 mm
  • Safety handwheels with disengagement function in accordance with EN23125 in the X and Z axes
  • High-speed feed gearbox in closed design, gear wheels and shafts hardened and ground, running in an oil bath in precision bearings
  • Scale of the threaded clock adjustable
  • Tailstock for taper turning adjustable ± 10 mm
  • Tailstock quill and handwheel with adjustable fine scale 0.025 mm
  • Quick, easy and tool-free adjustment of the tailstock using a clamping lever
  • Cable routing via energy chain
  • Heavily ribbed prism bed, induction-hardened and precision-ground from gray cast iron
  • Coolant device with separate coolant tank with level indicator and oil separator; easy and complete emptying and cleaning in accordance with DIN
  • Emergency stop device with foot actuation
  • unique in precision and operation. With digital position indicator DPA 31 Plus and quick-change steel holder

Scope of delivery

  • Fixed steady rest aperture Ø 25 - Ø 178 mm
  • Rotating steady rest aperture Ø 19 - Ø 114 mm
  • LED machine light
  • Adapter MK6-MK4
  • Non-rotating center point MK4
  • Non-rotating, but temperature-resistant center point MK4
  • Quick-change steel holder SWH 5-B
  • Steel holder 25 x 120 type D for square chisel 20 mm
  • Thread watch
  • Interchangeable gear set
  • Gearwheels for threading gauge (metric)
  • Initial machine filling with quality oil
  • Operating tool

The data comes from the product description. To clarify a parameter, call +359 882 477 388.

Delivery, warranty and service

Delivery by arrangement

  • Products in stock: delivered on the same day or on the next working day after the order is confirmed.
  • Products not in stock: the delivery time is 7 working days, unless one of our staff specifies otherwise.
  • Pigeon Express carries shipments of up to 400 kg. For this machine we agree the delivery method and price with you when we confirm the order.
Shipping weight
1965 kg
Dimensions
326.5 × 106.5 × 155 cm
Delivery terms

Warranty

“The warranty period is 24 months for all private individuals and 12 months for all legal entities, unless stated otherwise in the product description.”

Promash provides a warranty in accordance with the manufacturer's terms.

Frequently asked questions

Service and advice

Warranty and out-of-warranty service. Technical experts at your disposal for choosing a machine, commissioning and training.

Call: +359 882 477 388

Accessories for this machine

The original Stürmer accessories and options for Precision guide and drawbar turning machine OPTIturn TH 4620D — add them to the order together with the machine.

Show 19 more accessories