Used Headstock for sale (386)

Year of construction: 1971, condition: used, Headstock of radial drilling machine RABOMA 6V 2500 spindle holder MK5 Kfsdpfeiuia Rsx Aanoa with tapping device .

Year of construction: 2023, condition: new, Optimized for high productivity with an impressive price-performance ratio. Optimal structure design for high accuracy and minimal processing time. Swiss-type automatic lathe for turning, cross milling, deburring, thread cutting, cross milling and cross drilling. - Max. Machining diameter: 12/20/32 mm - Max. Machining length: 160/210 mm - axes: 7 - Tools: max. 22 SA12B - Max. Machining diameter: 12mm - Max. Machining length: 160mm - axes: 7 - Total number of tools: 18 SA20B - Max. Machining diameter: 20mm Ksdpsg Ncawofx Aansfa - Max. Machining length: 210mm - axes: 7 - Total number of tools: 22 SA32B - Max. Machining diameter: 32mm - Max. Machining length: 210mm - axes: 7 - Total number of tools: 20

Condition: new, Year of construction: 2024, -10 linear axes - Ultra-powerful clamping - Rework spindle and its dedicated 9-position carriage (X4) enable you to carry out complex operations in masked time. - Spindle capacity: 8000 rpm - Oil-cooled electro-spindle - Latest-generation FANUC 31i numerical control - Compact cast-iron structure Kjdpfx Asu Ik Tieansfa

Condition: used, Technical details: weight of the machine approx.: 5000 kg transport dimensions LxWxH: 1,4 x 1,8 x 2,2 m VERTICAL MULTIFUNCTIONAL HEADSTOCK UNIT FOR VLC 800 MT TURNING MILLING (see last photo for comparison) The headstock unit of the EMAG machines of the VLC series is characterised by short strokes, high rapid traverse rates, extreme rigidity and an integrated cooling system. Maintenance-free, frequency-controlled three-phase motors serve as feed drives for the X and Z axes. Max. chuck speed = 800 rpm. Motor: MBS382F Feed drive: 500 stroke (Z-axis) Kfodpfju Nlhksx Aansa Stroke limitation 500mm Hydraulic cylinder Weight compensation Spindle flange according to DIN 55 026 size Z 380 *

Condition: used, Headstock Kfodpjcqb N Ssfx Aanoa Spindle passage 38 mm Collet opening 38 mm Dimensions : L.650 x W.350 x H.450 mm

Condition: ready for operation (used), Year of construction: 2008, functionality: fully functional, turning length: 205 mm, rotational speed (max.): 6,000 rpm, bar diameter (max.): 16 mm, controller model: FANUC Series 18i-TB, number of axes: 5, CNC Swiss-type automatic lathe with main and sub spindle! A similar machine was recently auctioned successfully! TECHNICAL DETAILS Machining data Max. bar diameter: 16 mm Max. turning length: 205 mm Max. spindle speed: 6,000 rpm Number of axes: 5 Bar length: 3,200 mm Control system: FANUC Series 18i-TB MACHINE DETAILS Weight: 1,650 kg Kodpsw Uip Asfx Aanjfa EQUIPMENT Main spindle Sub spindle 8 tool stations for side machining 2x 4 tool stations for rear and face machining 3 driven tool stations Small parts discharge conveyor Bar feeder magazine: FMB Minimag 18 Coolant system: Oil

Condition: not inspected (used), functionality: unexamined, distance between centers: 175 mm, Used workpiece spindle head, previously mounted on a Kellenberger 1000U Mounting taper MK5 Further information available on request Shipping via freight carrier can be arranged if required Kfedpfx Ajxncqfjansa

Condition: ready for operation (used), Year of construction: 2006, functionality: fully functional, The positions of the rotating tools are: T01-02-03-04 / T22-23 / T34-35 - equipped with Iemca Boss 332E/32 new in 2006 - lot of collets / guide bushes - MSC-501 Control - the machine has always worked with oil. Kfsdpowpu Etofx Aanoa

Condition: ready for operation (used), Year of construction: 2005, functionality: fully functional, machine/vehicle number: 1673, turning length: 205 mm, rotational speed (max.): 6,000 rpm, bar diameter (max.): 16 mm, controller model: FANUC Series 18i-TB, number of axes: 5, CNC sliding headstock automatic lathe with main and sub spindle! TECHNICAL DETAILS Machining data Max. bar diameter: 16 mm Max. turning length: 205 mm Max. spindle speed: 6,000 rpm Number of axes: 5 Bar length: 3,200 mm Control: FANUC Series 18i-TB Kfedpfsw Uim Isx Aanoa MACHINE DETAILS Weight: 1,600 kg EQUIPMENT Main spindle Sub spindle 8 tool stations for side machining 2x 4 tool stations for back and face machining 3 driven tool stations Small parts discharge conveyor Bar feeder: FMB Minimag 3200 A

Condition: ready for operation (used), Year of construction: 2000, functionality: fully functional, machine/vehicle number: 0624, turning diameter: 20 mm, rotational speed (max.): 6,000 rpm, controller model: FANUC Series 18i-T, spindle stroke: 205 mm, number of axes: 7, CNC Swiss-type lathe with seven machining axes! TECHNICAL DETAILS Machining Data Turning diameter: 20 mm Kfodpfx Aaow Uilqjnea Spindle head stroke: 205 mm Spindle speed: max. 6,000 rpm Number of axes: 7 Bar length: 3,200 mm Control: FANUC Series 18i-T EQUIPMENT Main spindle with 4 axes (X/Z/Y/C) Sub-spindle with 3 axes (X/Z/C) 14 tool stations 5 driven tool positions Small parts extraction device Bar feeder: FMB Type Turbo 3-26 Operator terminal Coolant system: Oil

Condition: ready for operation (used), Year of construction: 2008, functionality: fully functional, machine/vehicle number: 3085, turning length: 205 mm, rotational speed (max.): 6,000 rpm, bar diameter (max.): 16 mm, controller model: FANUC Series 18i-TB, number of axes: 5, CNC Swiss-type automatic lathe with main and sub spindle! TECHNICAL DETAILS Machining Data Maximum bar diameter: 16 mm Maximum turning length: 205 mm Maximum spindle speed: 6,000 rpm Number of axes: 5 Bar length: 3,200 mm Control: FANUC Series 18i-TB MACHINE DETAILS Weight: 1,650 kg EQUIPMENT Main spindle Sub spindle 8 tool positions for side machining Kfsdew Echnopfx Aanoa 2x 4 tool positions for rear and face machining 3 driven tool stations Small parts discharge conveyor Bar feeder: FMB Minimag 18 Coolant system: oil

Condition: ready for operation (used), Year of construction: 2007, functionality: fully functional, turning length: 205 mm, rotational speed (max.): 6,000 rpm, bar diameter (max.): 16 mm, controller model: Fanuc Series 18i-TB, number of axes: 5, CNC Swiss-type automatic lathe with main and sub-spindle! Kfjdpfx Aew Eb Hcjansa TECHNICAL DETAILS Machining Data Bar diameter: max. 16 mm Turning length: max. 205 mm Spindle speed: max. 6,000 rpm Number of axes: 5 Control Control manufacturer: FANUC Control model: Series 18i-TB MACHINE DETAILS Weight: 1,650 kg EQUIPMENT Main spindle Sub-spindle 8 tool stations for side machining 2x 4 tool stations for rear and face machining 3 driven tool stations Small parts discharge conveyor Bar feeder: FMB Minimag 18 (bar length: 3,200 mm) Coolant system: Oil

Condition: excellent (used), Year of construction: 2004, chain mortising machine with additional unit made up of two horizontal routers for the execution of the handle and the key holes and two adjustable and motorised swinging units for the execution of slots vertical working unit: max work piece thickness 230 mm max work piece height 710/ 1050 mm vertical stroke length 150 mm horizontal stroke length 300 mm traverse head stroke 80 mm head tilting +/- 45 deg. vertical stroke of head stock bracket 250 mm headstock bracket tilting +/- 45 deg. max. workpiece height 1000 mm chain motor 2,2 kW, 400V, 50 Hz Ksdpslpcffjfx Aanjfa horizontal working unit: swinging unit no. 2 min/ max. longitudinal stroke 80/ 130 mm manual traversal stroke 140 mm pneumatic transversal stroke 140 mm swinging unit motor 0,18 kW, 400 V, 50 Hz router motor 1,8 kW, 400V, 50 Hz weight approx. 650 kg incl. pump for automatic chain lubrication incl. tools incl. manual Advise used machines: • Technical data without obligation, mistake and intermediate sale reserve. • Price is considered ex-location price • All articles or machines are bought as seen without any entitlement on warranty. • It is left to the choice of the buyer to view the machines before at its location. • Special arrangements are possible but only valid in written form. (We answer your inquiries only with stated address + telephone number!)

Condition: good (used), For sale is an external cylindrical grinding machine of the brand VEB Werkzeugmaschinenbau and of the type SU 200/1x800 Kfodpfxjrdf Hgo Aanea The machine is fully functional and ready for immediate use Technical data Grinding diameter: 200 mm Sanding length: 800 mm orbital diameter: approx. 160 mm Headstock speed: 200-1000 1/min Headstock: MK2 Grinding wheel diameter: approx 330 mm Table size: 900 x 200 mm Dimension: 3050x1300x1430 Weight: 4.6 tons On request, loading and transport (Europe-wide) can be organized for an extra charge. Prices plus VAT Viewing possible by appointment. Contact us, our team will be happy to help you. Trade-in or exchange possible! Machines purchase / sale PURCHASE / SALE OF PRODUCTION & METALWORKING MACHINES AND MUCH MORE. Do you need a high-quality but inexpensive metalworking machine for your production? Or do you want to sell yours? For further information or contact options, please visit our website

Condition: ready for operation (used), Year of construction: 2014, operating hours: 1,520 h, General Data Measurements width 1200 mm Measurements depth 1050 mm Measurements height 2000 mm Main Drive Laser power 2.5 kW Spindle speed range 14000 1/min Spindle motor power 14 kW (100% ED) Tool taper HSK64 Number of axis 5 Movement X-Axis Movement 650 mm Y-Axis Movement 650 mm Z-Axis Movement 560 mm Table Outer length 800 mm Outer width 650 mm Tools Slots in storage 60 Type of tool holder HSK64 Media Oil water separator Yes Chip conveyor Yes Internal cooling Yes Additional Equipment Inner cooling system 40 bar, 23 l/min Scraper belt chip conveyor with coolant system 600 liters, paper belt filter Infrared measuring probe Renishaw OMP 60 Version for SK 40 (the probe is automatically inserted into the work spindle from the tool magazine) Rinsing gun with pump 2 bar/40 l/min Oil/emulsion mist separator Tool measurement in the Blum Laser work area MPC Machine Protection Control & 3D quickSET Kjdpex Hblzsfx Aanofa Surcharge for powder feeder Twin System Suction unit with secondary filter stage electronic handwheel Siemens 840D Machine was upgraded to new machine status by DMG in 2020 and then delivered. This DMG MORI LASERTEC 65 3D Hybrid 5-axis precision machine for milling and laser machining was manufactured in the year 2014 in Germany. It is special for the ability to produce components using 3D Printing and to post-process them at the same time. Ideal for manufacturers who need a high-performance additive manufacturing solution of metallic 3D components. The machine features a fixed integration of the laser head in the headstock for greater installation space and more performance. In addition it offers 5-axis material application via coaxial nozzle for uniform powder distribution regardless of the laser build-up direction. It is the ideal dedicated solution for prototypes, small series, repair and coating. This LASERTEC 65 3D is equipped with an integrated SK 40 motor spindle with spindle speed up to 14,000 1/min. In addition it operates with a fiber-guided diode laser of 2.5 kW laser power. Next to internal coolant supply (IKZ) it comes with Renishaw measuring probe and Blum tool measurement option. Furthermore it is appreciated for its generously sized work area that is easily accessible, along with travel dimensions of 650 × 650 × 560 mm (X / Y / Z). It is a supremely adaptable 5-axis machine suitable for a wide array of laser and milling tasks, delivering consistently high-quality results without compromise. Application Types Milling

Condition: like new (used), Year of construction: 2021, functionality: fully functional, Weiler Praktikant VCD Precision Lathe Manufacturer: Weiler Model: Praktikant VCD Precision Lathe Year of manufacture: 2013 Condition: used, very good, as-new condition, no signs of wear, incl. new servicing and measurement protocol prior to sale Centre distance: 650 mm Centre height: 160 mm Swing diameter over bed: 320 mm Swing diameter over cross slide: 190 mm Cross slide travel: 150 mm Top slide travel: 110 mm Top slide swivel range: +/-65° Bed slide guide length: 350 mm Bed width: 205 mm Turning tool cross-section (height x width): 20 x 20 mm Height from top slide to centre: 30 mm Spindle nose according to ISO DIN 702-3 (DIN55027) size 5 Spindle diameter at front bearing: 70 mm Spindle bore: 43 mm Main spindle taper metric 50 Drive power: 6 kW Speed range: 30 – 4000 rpm Number of gear stages: 1 Number of speed ranges: stepless Number of feeds: 24 Kfjdpfx Aox I Rtkoansa Longitudinal feed: 0.02 – 0.63 mm/rev Facing feed: 0.006 – 0.2 mm/rev Quill diameter: 40 mm Quill travel: 85 mm Quill taper: 3 Morse taper Weight, without packing and accessories, approx. 1150 kg Length / Width / Height, net: 1720 x 890 x 1700 mm Headstock / rear wall / sliding safety cover: Light grey RAL 7035 Machine base / machine bed: Basalt grey RAL 7012 Screen display housing: Blue NCSS 4550-R80B

Condition: good (used), Year of construction: 2003, movable headstock 10 axes Spindle speed 0 - 10,000 rpm C axis TOOL CARRIER (X1-Y1 / X2-Y2) - 2 independent cross slides with 2x5 tools - Drive unit 100 - 8,000 rpm for up to 4 driven tools on X2-Y2 Kfsdjxp Nf Sjpfx Aanja NO front attachment SUB-SPINDLE (X4-Y4-Z4) - Spindle speed 100 - 8,000 rpm - Slide with 3 independent axes SECONDARY OPERATIONS - Turret with 7 positions (4 axial and 3 radial) - Spindle speed 100 - 10,000 rpm Part conveyor Bar feeder Robobar SBF 532

Condition: new, The Turnado 280/1500 PRO is a state-of-the-art Conventional Horizontal Lathe from KNUTH, designed for robust and precise machining in the Engine Lathes category. This model embodies over 20 years of excellence, integrating modern advancements into the classic lathe framework. It features a new ergonomic design that enhances user operation and comfort, while the powerful main spindle drive ensures high torque across an extensive speed range. Significantly, the Turnado lathe maintains constant cutting speeds during face turning, adapting to the workpiece diameter for optimal results comparable to CNC machines. Its solid base, consisting of a heavily ribbed bed and rigid headstock, promotes durability and reliability. With features like a central lubrication system for maintenance ease, a micrometer bed stop for repeatability, and a suite of standard equipment, including quick tool change systems and a 3-axis position indicator, this lathe stands out in both performance and efficiency. To experience the benefits of the Turnado 280/1500 PRO for your machining needs in the Engine Lathes category, request a quote today. Kfedpjuyinvofx Aanoa

Condition: used, Technical details: number of spindles: 1000 bore capacity in steel (diameter): 32 mm bore stroke: 200 mm range of revolution per miute: 63 - 1000 U/min bore capacity in cast iron: 50 mm drill spindle - Morse Taper: MK4 spindle throat: 315 mm spindle distance: 475 mm number of drilling stations: 3 headstock adjustment: 280 mm feed:: 0,08 - 1,25 (9 Steps) mm/U distance between table/spindle: 710 mm table surface area: 450 x 560 mm total power requirement: 12,4 kW weight of the machine ca.: 3,1 t dimension machine xH: 2,15 x 1,40 x 2,65 m Kfsdpjw Th Nljfx Aanea The previous owner removed a drill spindle with box from the gang drilling machine! *

Condition: used, Year of construction: 1999, operating hours: 78,000 h, machine/vehicle number: IntNr231160, IntNo231160 Machine type CNC sliding headstock automatic lathe Manufacturer STAR Model SV-20 year of construction 1999 Condition very good (used) Very well maintained machine directly from the user Machine has only run with oil Ksdpfx Aaox Hibkonjfa Operating hours around 78,000 hours FANUC 16i-T control with 9 axes, 9 axes (X / C1 / Y / E / B / A / X / C2), Bar Ø max. 20 mm Turning length max. 205 mm / 195mm, Main spindle, max. speed 10,000 rpm, C-axis, Counter spindle with collet chuck, max. speed 10,000 rpm, C-axis, 4-fold tool holder 3 cross drilling units Turret with 8 stations Various additional tool holders, quills, parts conveyor belt Tank capacity 170L Coolant used in the machine: oil Loading magazine FMB Turbo 3-26 /3200/A / from Ø3- Ø26 mm Year of construction 1999 Fire extinguishing system Kraft & Bauer / GUT fire protection Mayfran chip conveyor The machine can be inspected by appointment. Changes and errors in the technical data and information as well as prior sale reserved! IntNo231160 Machine type CNC sliding headstock automatic lathe Manufacturer STAR Model SV-20 year of construction 1999 Condition very good (used) Very well maintained machine directly from the user Machine has only run with oil Operating hours around 78,000 hours FANUC 16i-T control with 9 axes, 9 axes (X / C1 / Y / E / B / A / X / C2), Bar Ø max. 20 mm Turning length max. 205 mm / 195mm, Main spindle, max. speed 10,000 rpm, C-axis, Counter spindle with collet chuck, max. speed 10,000 rpm, C-axis, 4-fold tool holder 3 cross drilling units Turret with 8 stations Various additional tool holders, quills, parts conveyor belt Tank capacity 170L Machine coolant: oil Loading magazine FMB Turbo 3-26 /3200/A / from Ø3- Ø26 mm Year of construction 1999 Fire extinguishing system Kraft & Bauer / GUT fire protection Mayfran chip conveyor The machine can be inspected by appointment. Changes and errors in the technical data and information as well as prior sale reserved!

Condition: ready for operation (used), Year of construction: 2010, operating hours: 29,200 h, Additional Equipment Mechanical and electrical preparation for fire extinguishing system Cooling system with 600l capacity and 50µm filter Pump with options of 8 or 20 bar IEMCA Boss 332E bar loader for bar length up to 3m Kfjdox D H I Topfx Aanoa Bristol B270/E oil mist separator Moving headstock (80mm) with tools on slides plus tool breakage detection This Gildemeister Sprint 20-8 was manufactured in 2010. It features a cooling system with a 600l capacity and 50µm filter, alongside a high-pressure pump option of 8 or 20 bar. The machine includes a Bristol B270/E oil mist separator and an IEMCA Boss 332E bar loader for 3m bars. With a chip discharge height of 1,250mm, it's designed for efficient operation. Contact us for more information about this machine. Application Types Turning

Condition: ready for operation (used), The positioner SILVESTRINI Mod. SA 1 ORBIT EL T5 are composed by: HEADSTOCK Section The structure in rugged electro-welded steelwork, supporting a motorized (horizontal axis) rotation system. The rotation is given by a gear motor that, by means of a pinion, meshes with a large slewing bearing, to which is fixed the ORBIT Structure. This section is equipped with lateral precision guides to permit the ORBIT vertical lifting movement. The elevation is hydraulic, by means of hydraulic piston on which are inserted special clamping safety valves, that prevent the fall of the table, in case of accidental breakage of tubes. On the horizontal axis is installed an electric rotating joint for the connexions with the Orbit table (vertical axis). This permits the total axes free rotation. MECHANICAL STRUCTURE ( ORBIT) It Is constructed in rugged electro-welded steelwork and holds a rotating table (motorized like the over mentioned headstock) that will support thу working pieces in high accuracy. A special bronze rotary earth connection (Silvestrini patent) transmits welding current. Technical specifications related to the workpieces: Cap: 5 ton Kfjdsx Imnqjpfx Aanja Table dia: 1000 mm Max rotation speed of the table: 1 rpm Lifting stroke: 1000 mm Lifting speed: 700 mm

Condition: good (used), Year of construction: 2001, movable headstock 10 axes Spindle speed 8,000 rpm C-axis TOOL CARRIER (X1-Y1 / X2-Y2) - 2 independent cross slides with 2x5 tools - Drive unit 8,000 rpm for up to 4 driven tools on X2-Y2 FRONT UNIT (X3-Z3) - Cross slide with 4 positions SUB-SPINDLE (X4-Y4-Z4) - Speed 6,000 rpm - Slide with 3 independent axes SUB OPERATIONS - Holder with 7 positions (4 end and 3 cross) Workpiece feeder Coolant pump 20 bar KNOLL chip conveyor Bar feeder ROBOBAR 532, 3m bars Kodpfx Aew Exk Ssanofa

Year of construction: 1985, condition: excellent (used), POREBA conventional heavy duty lathe Model: TCG 125 x 4000. The machine was designed by POREBA as a special-purpose machine for the production of a cylindrical roller for a steel mill. LATHE in very good condition, renovated in 2010, new electrical cabinet!! Perfect bed, Quiet headstock all ranges work! The machine is connected to electricity, so tests are possible, Model: TCG 125/5000 Manufacturer: POREBA Location Wroclaw Poland Technical data: Turning diameter over bed: 1250 mm Turning diameter with carriage: 940 mm Four-jaw chuck diameter: 1250 mm Chuck working range min/max: 230/1050 mm Distance between centers: 4000 mm headstock Spindle bore: 105 mm Spindle seat: cyl. 105 Spindle diameter in the front bearing: 320 mm Number of spindle speeds: 24 General spindle speed range: 1.6 - 315 rpm Spindle drive motor power: kW 75 Maximum spindle torque: 63000Nm Bed Bed width: 1100 mm Slide length: 1320mm Support width: 550mm Slide travel: 800 mm Tool guide travel: 600 mm Number of feed rates for each range: 20 General longitudinal feed speed range: 0.18 - 160 mm / rev Longitudinal feed speed range at: - large spindle speed range: 0.18 - 5 mm / rev - middle spindle speed range: 0.18 - 40 mm / rev - low spindle speed range: 0.72 - 160 mm / rev General range of metric threads: 1-192 mm General range of inch threads: 30 - 1/8 tpi General feed rate range mm per minute: 11.2 - 320 mm / min. Rapid longitudinal traverse: 4000 mm / min Fast feed motor power: 4 kW Tailstock: Tailstock quill diameter: 280 mm Tailstock spindle diameter in front bearing: 170 mm Tailstock sleeve stroke: 200 mm Rapid feed of the tailstock quill: 300 mm / min Rapid feed of the tailstock along the bed: 1500 mm / min Overall dimensions and weight: Machine length: 9700 mm Kfodpfx Aasld Ughonsa Lathe width: 2200 mm Lathe height: 1930 mm Maximum workpiece weight in the chuck: 4 t Maximum part weight in centers - without support 30 t - with one steady rest 35 t - with two supports 40 t Machine weight: 36 t The heavy lathe Poręba TCG 125 x 4000 was manufactured in Poland in 1984 by Fabryka Obrabiarek Heavy "PONAR - ZAWIERCIE" plant No. 1 "PORĘBA". The TCG 125 heavy center lathe is a universal machine tool that enables rough and finish turning, drilling, threading, taper turning, boring, turning and copying of heavy workpieces with one clamping. The Poręba TCG 125 lathe is designed for machining workpieces with diameters up to 1250 mm and weights up to 30,000 kg in centers (with rests up to 40,000 kg). The construction layout and rigidity of the structure allows turning with large chip cross-sections and ensures high smoothness with minimal ovalization of the workpiece. The monolithic rigid bed is equipped with hardened pads. The great advantage of the machine is the modular design, thanks to which we can easily increase both the diameter and the turning length. The length of turning is increased by adding another part of the bed and can be extended to virtually any length. Turning diameter is increased by installing headstock, tool holder and tailstock extension blocks. All modules can be ordered from the machine manufacturer.

Condition: ready for operation (used), Year of construction: 2010, Control Unit Brand HEIDENHAIN Main Drive Tool taper ISO 50 Kfsdpfex D Hbajx Aanja Number of axis 5 Table Outer length 4970 mm Outer width 1200 mm Table load 6000 kg Additional Equipment ISO 7388/1 DIN 69871-A, DIN 69871-AD compatible Tool Clamping: Hydraulic / Tool Clamping Force: 2000 daN Inner cooling system: 130 bar This 5-axis ANAYAK HVM 5000P CNC milling machine was manufactured in 2010. It features a large table surface of 4970 x 1200 mm, capable of handling loads up to 6000 Kg. Equipped with a multi-angular headstock and automatic angular positioning for precise control. The spindle supports speeds up to 6000 rpm, powered by a robust 28/38 kW motor. If you are looking to get high-quality milling capabilities, consider the ANAYAK HVM 5000P machine we have for sale. Contact us for more information. Application Types Milling