Horizontal boring mills


Horizontal Boring Mill – Table Type

Brochure Download
  • solid design
  • travel in the X axis = 1600 mm
  • optionally automatic toolchanger with a tool changing time of 15 s (from cut to cut)

Main Parameters

Workspindle diameter 100 mm
Clamping taper 50 ISO
Spindle speed range 3000 rpm
Headstock travel (Y) max. 1220 mm
Table longitudinal travel (Z) 900 / 1710 mm
Table transversal travel (X) 1600 mm
Spindle stroke (W) 710 mm
Table clamping surface max. 1500 x 1500 mm x mm
Table loading capacity max. 3000 kg

Complete Parameters

Machine Parameters
Workspindle diameter 100 mm
Clamping taper 50 ISO
Tool shank 69871 DIN
Clamping adapter – screw 4100793 TOS
Spindle speed range 10 - 3000 rpm
Main motor power (S1/S6-40%) 22 / 34 kW
Maximum torque of the spindle (S1/S6-40%) 1097 / 1645 Nm
X…transversal travel of table 1600 mm
Z…longitudinal travel of table 900 / 1710 mm
Y…vertical travel of headstock 1220 mm
Y…vertical travel of headstock – facelift 1290 mm
W…spindle stroke 710 mm
Table clamping surface 1250 x 1250 mm x mm
1500 x 1500 mm x mm
Width of T-slots 22 H8 mm
Table loading capacity – 1250 x 1250 3000 kg
Table loading capacity – 1500 x 1500 2500 kg
Feeds... X, Y, Z, W – manual mode 4 - 500 mm / min
Feeds... X, Y, Z – automatic mode 4 - 15000 mm / min
Feeds... W – automatic mode 4 - 6800 mm / min
Rapid traverse…X, Y, Z 15000 mm / min
Rapid traverse…W 6800 mm / min
Rapid traverse of table rotation…B 1,6 rpm
Total power consumption 70 kVA
Machine weight 13000 kg
Total area including CE – approximate 7000 x 5500 mm x mm
ATC Parameters R03-30 R03-40
Tool changing time 15 15 s
Number of tools 30 40 pcs
Tool pocket pitch 130 130 mm
Maximum tool diameter – unrestricted 125 125 mm
Maximum tool diameter – with free pockets 200 200 mm
Maximum tool length 500 480 mm
Maximum tool weight 15 15 kg
Maximum weight of tools in magazine – total 250 300 kg
Maximum tool unbalance in magazine wheel 50 70 kg
Maximum wheel speed 8 5 rpm
Operating air pressure 5 5 bar
Required air purity 40 40 microns
Weight without tools 1240 1380 kg

Detailed Specification

The RET100B is a contouring table type of a horizontal boring machine designed by the company RETOS VARNSDORF s. r. o. It is an option to the manually operated machine W100A.


  • contouring horizontal boring machine
  • fixed column, crosswise travelling table
  • 4 linear axes, rotary table
  • sliding workspindle
  • machine designed for universal application in engineering production
  • suitable for roughing as well as for finishing
  • optionally can be fitted with tool magazine with manipulator (ATC), tool cooling kit (CHZ), cooling through spindle axis (CHOV) or oil-mist cooling (CHM)
  • ready for „Industry 4.0“ 

Controlling of the Machine

  • all functions of the machine, except for tool clamping and unclamping, are controlled via the control panel, which consists of a keyboard, a switch panel and an LCD monitor
  • the tool clamping and unclamping is controlled by switches on the headstock
  • the control panel is supplemented by a portable control panel (handwheel), which duplicates some basic of the functions of the control of the machine
  • the control panel is swivellingly connected to the wall inside the operator housing
  • the control system allows manual, semiautomatic and fully automatic modes
  • the standard communication interface allows a connection with the Ethernet for easy administration and distribution of technological programs as well as diagnostics or servicing of the control system


Machine design can be customized.

Standard Version

Control System

  • HEIDENHAIN TNC 640 + handwheel
  • HEIDENHAIN drives
  • SIEMENS motors 

Powered Axes

  • X – travel of rotary table slide on saddle
  • Z – travel of saddle on bed
  • Y – vertical headstock travel on column
  • W – spindle stroke
  • B – table rotation
  • S – workspindle rotation

Machine Capabilities

  • X, Y, Z, W axes powered in interpolation
  • B axis powered only positionally
  • linear interpolation of four axes
  • circular interpolation of two out of four axes powered in interpolation
  • spiral interpolation
  • spacial interpolation – spline in space
  • interpolation of S and Z (W) axes – spindle turning depending on the Z (W) axis position – enables thread cutting without use of a compensating bushing

Kinematics of the W Axis

  • brushless digital servomotor with servo-drive
  • clearance-free gearing by timing belt
  • ball screw

Kinematics of the X, Y, Z Axes

  • brushless digital servomotor with servo-drive
  • ball screw – directly driven by motor

Kinematics of the B Axis

  • brushless digital servomotor with servo-drive
  • planetary gearbox with minimum clearance
  • gear set + gear ring

Group Guidance

  • X, Y, Z axes – guideways reinforced with hardened steel plates, counterways with plastic casts, TURCITE-coated jibs 
  • W axis – sliding guideway, cast-iron / steel
  • B axis – guideways of the rotary table are scrapped


  • central, axial lubrication
  • frequency of lubrication cycles correlates with travelled track of the particular group


  • B axis – hydraulically
  • X, Y, Z, W axes – not clamped – positional feedback


  • sliding workspindle
  • spindle cavity blown with air during tool-changing cycle
  • spindle driven in two speed ranges – gears
  • hydraulic shifting of each range
  • setup of tool cooling by jets on headstock front side

Hydraulic Power Pack

  • HYTOS hydraulic and lubrication set
  • lubrication of all axes
  • clamping B
  • unclamping of the tool

Position Measurement

  • HEIDENHAIN digital optical measuring
  • X, Y, Z axes – absolute linear encoders
  • W axis – absolute rotary encoder in motor
  • B axis – absolute angle encoder
  • S axis – incremental rotary encoder

Energy Distribution

  • IGUS chain energy carriers

Coverage of Machine

  • complete coverage of guideways of X axis
  • partial coverage of Z, Y axes

CE – valid only for the European Union

  • comprehensive safety elements according to the applicable legislation and technical standards
  • operator housing
  • working area of the machine is fenced off


Control System

  • SIEMENS SIN 840D SL + handwheel
  • SIEMENS drives and motors

ATC R03-30/40 – Automatic Tool Changer

  • ATC facility as a separate unit
  • magazine with servodrive for tool pocket positioning
  • changer driven electrically / pneumatically

CHZ – Tool Cooling Kit – Emulsion

  • tool cooling kit with jets on headstock front side
  • separate cooling unit – tank with pump, level gauge, pressure test
  • tank volume 100 l
  • maximum pressure 4 bar / 40 l/min
  • setup for tool cooling always included – distribution pipes, jets

CHZ-V – Tool Cooling – Air

  • cold air gun
  • cooling without a thermal shock
  • positive impact on the accuracy and the surface quality
  • high reliability
  • environmentally friendly and low-noise operation
  • almost zero operating costs

CHOV-K – Cooling Through Spindle Axis – Fluid

  • not possible to add into configuration, once the production has started
  • separate cooling unit with filter and magnetic swarf separator required
  • maximum pressure 40 bar – emulsion – tank volume 1000 l
  • other necessary alterations to machine and CE features depend on the required cooling pressure
  • for pressure higher than 10 bar a workpiece or machine cover is necessary

CHOV-V – Cooling Through Spindle Axis – Air

  • not possible to add into configuration, once the production has started
  • maximum pressure 5 bar

CHOV-M – Cooling Through Spindle Axis – Oil-Mist

  • not possible to add into configuration, once the production has started
  • separate programmable cooling unit
  • maximum pressure 5 bar

CHM – Oil-Mist Cooling

  • can be added to machine at any time
  • easy to install
  • easy to use


Standardly Delivered Accessories

  • spindle guiding support – 170 mm
  • VK-ISO50 cleaning brush
  • clamping adapters – 15 pieces
  • KM anchoring kit
  • basic tool kit for operation and maintenance of the machine
  • basic spares kit
  • accompanying technical documentation

Optional Accessories

  • spindle guiding support – 320 mm
  • spindle guiding support – 470 mm
  • HPR50, FP40 vertical manual milling head
  • UFP40 universal manual milling head
  • LD650 facing head
  • outboard support + technological accessories (limitation of the Z axis travel)
  • UK500, UK1000, UK1500, UK2000 clamping cube
  • UU800, UU950, UU1120, UU1450, UU1620 clamping angle plates
  • spares kit for 3-year operation
  • HEIDENHAIN DA400 compressed-air filter system
  • HEIDENHAIN TS460 3D touch probe with radio/infrared signal transmission



+420 413 039 105

ISO 9001 / ISO 14001

Since the 8th of June 2018 we have been certified according to the new standards ISO 9001:2015 and ISO 14001:2015.

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