Horizontal boring mills

RET100B / W100B

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)
  • optionally "facelift" design

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 W100B-CNC 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)

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 situated on the rotary console in front of the headstock
  • 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

Standard Version

Control System

  • HEIDENHAIN iTNC 530 HSCI + 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, Z axes – guideways reinforced with hardened steel plates, counterways with synthetic casting, TURCITE-coated jibs 
  • Y axis – guideways reinforced with hardened steel plates, TURCITE-coated counterways and 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

Admeasurement of Position

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


  • extended cover system of the machine
  • Y axis – complete coverage of the group column/headstock including the integrated operator housing
  • Z axis – fully enclosed guideways
  • B axis – coolant drain system (for the CHZ and CHOV-K design)
  • Y axis travel increased by 70mm up to 1290mm

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
  • 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
  • maximum pressure 80 bar – oil – tank volume 100 l
  • emulsion and oil may not be used both for one machine
  • other necessary alterations to machine and CE features depend on the required cooling pressure

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 clamping cube
  • UU800, UU950, UU1120, UU1450 clamping angle plates
  • spares kit for 3-year operation
  • HEIDENHAIN DA 400 compressed-air filter system
  • HEIDENHAIN TS 460 3D touch probe with radio/infrared signal transmission


  • machine design can be customized



+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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