Used Hurco Bmc 30 M for sale (159)

Condition: ready for operation (used), Year of construction: 2014, total height: 3,240 mm, overall weight: 8,880 kg, This 3-axis Hurco VMX 50i was manufactured in 2014, featuring a robust table size of 59 x 26 inches and a maximum spindle speed of 12,000 rpm. It supports a tool capacity of 40 with a rapid tool-to-tool ATC time of 2 seconds. Ideal for precise, heavy-duty machining with a maximum table load of 4,410 lb. If you are looking to get high-quality milling capabilities consider the Hurco VMX 50i machine we have for sale. Contact us for more information. • Table Size: 1500 x 660 mm • T-Slots: 6 x 18 mm • Maximum Weight on Table: 2000 kg • Spindle Nose to Table: 101 mm • Maximum Spindle Speed: 12000 rpm • Spindle Power (15 min/Continuous): 15 kW / 11 kW @ 720 rpm • Spindle Torque (15 min/Continuous): 198.9 Nm / 116.7 Nm @ 720 rpm • Tool Type: CAT 40 / Big Plus® Kodpfex D E Eqsx Ah Nedg • Tool Capacity: 40 • Maximum Tool Diameter: 76 mm • Maximum Tool Length: 300 mm • Maximum Tool Weight: 7 kg • Tool-to-Tool ATC Time: 2 sec Dimensions Machine Depth 5055 mm

Condition: good (used), Year of construction: 2012, • Spindle: 30,000 rpm • Taper: BT30 • Control: Hurco WinMax Kdedpjya D Sijfx Ah Nsg • Working hours: 13'000 Condition / equipment: • 5-axis simultaneous positioning • Tool changer: 20 tools • Spindle chiller • Tool measurement • Tooling negotiable • Compressed air gun

Condition: new, Year of construction: 2025, functionality: fully functional, machine/vehicle number: 2311151630, turning diameter over cross slide: 650 mm, spindle bore: 153 mm, turning length: 3,150 mm, turning diameter: 650 mm, turning diameter over bed slide: 650 mm, turning diameter over top slide: 410 mm, quill stroke: 150 mm, quill diameter: 100 mm, rapid traverse X-axis: 13 m/min, rapid traverse Z-axis: 13 m/min, spindle speed (min.): 30 rpm, spindle speed (max.): 1,600 rpm, center height over cross slide: 410 mm, feed length X-axis: 330 mm, feed length Z-axis: 3,150 mm, feed rate X-axis: 2 m/min, feed rate Z-axis: 13 m/min, total length: 6,261 mm, total width: 3,588 mm, total height: 2,375 mm, type of input current: three-phase, spindle motor power: 18,000 W, overall weight: 5,200 kg, rotational speed (min.): 30 rpm, rotational speed (max.): 1,600 rpm, torque: 1,050 Nm, controller manufacturer: Milltronics, controller model: 9000 DGI, input voltage: 230 V, drill spindle diameter: 153 mm, nominal power (apparent): 21 kVA, number of spindles: 1, spindle nose: A2-11, tailstock quill diameter: 100 mm, tailstock quill mount: MK 5, tailstock quill stroke: 150 mm, number of slots in tool magazine: 8, Equipment: rotational speed infinitely variable, LIST PRICE of the machine: EUR 149,500.00!!!!! The machine is new and immediately available. Subject to prior sale. Including hinged belt chip conveyor. Delivery of the machine in export packaging ex our warehouse. (Shipping costs to be borne by the buyer) Operating fluids to be supplied by the buyer. Commissioning and training by Milltronics possible. Leasing available (subject to credit approval) Machine details: • CNC control Milltronics 9000-DGI • 15" LCD color touchscreen • Ethernet interface • USB interface • Productivity software, DSA, MSV, bidirectional turning cycle, 9000-DGI Desktop • Connection for external keyboard • Electronic handwheels for manual operation, teaching, or automated processes • Custom macros available • Override potentiometer for axes and spindle • Spindle load monitoring • Key switch to lock the EDIT function • Indicator lights for operating status • Additional "M" function with CNC dwell channel • Constant cutting speed • Rigid tapping • Spindle speed 30 - 1600 rpm • Spindle motor 18 / 11 kW, 2-speed electronic gearbox • Spindle nose type A1-11 • Tool turret with 8 stations, 25 mm • One axial tool holder for standard tools 25 mm x 25 mm • One boring bar holder 38 mm • Automatic lubrication system • Full enclosure with sliding doors • Coolant system with pump • CE certification • Instruction manual, spare parts list, and wiring diagrams in digital format • Operation and maintenance manuals in digital format • Transformer for standard industrial power, 400 volts, 3-phase • Lifting brackets for craning the machine Optional accessories: Manual 3-jaw chuck 300 mm Hydraulic tailstock quill (only in conjunction with hydraulic chuck) Hydraulic 3-jaw chuck with hydraulic power unit (diameter 300 mm – bore 70 mm) Ksdpex Akm Rofx Ah Nsdg Fixed steady rest with rollers, range 20 – 200 mm Fixed steady rest with rollers, range 180 – 410 mm Follow steady rest with brass supports, range 20 mm – 200 mm 38 mm boring bar holder for turret 25 mm axial tool holder Hinged belt chip conveyor instead of drawers Programming manual in paper format Machine manual in paper format Floor mat with Milltronics logo

Condition: good (used), Year of construction: 2004, functionality: fully functional, travel distance X-axis: 610 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 610 mm, rotational speed (max.): 10,000 rpm, - ULTIMAX 4 control - toolchanger for 24 tools - chip screw - electronical hand wheel - coolant device - measuring feeler Kdsdpfx Aex Hfnysh Nog Technische Daten / technical details: Verfahrweg X / X-Travel 610 mm Verfahrweg Y / Y-Travel 510 mm Verfahrweg Z / Z-Travel 610 mm Tischgröße / table size 760x510 mm Werkzeugschaft / spindle taper SK40 Drehzahlbereich / spindle speed 10-10000 UpM /rpm Anzahl der Werkzeugplätze / tool places in ATC 24 fach Eilgang / rapid feed 30/30/20 m/min Gewicht der Maschine ca. / weight 4300 Kg Technische Daten, Zubehör und Beschreibung der Maschine sind unverbindlich - Technical data, accessories and description of the machine are not binding.

Condition: used, functionality: fully functional, travel distance X-axis: 1,270 mm, travel distance Y-axis: 660 mm, travel distance Z-axis: 610 mm, Machine parameters: Travels in X, Y, Z axes: 1270 x 660 x 610 mm Table clamping area: 1500 x 660 mm Description: The machine is in good technical condition. Testing is possible by prior arrangement. Supported systems: MAX4 with WinMax v8, control language completely in Czech. 3D simulation: Yes. Programming type: Dialog and NC. TABLE Table dimensions: 1,500 x 660 mm T-slots: 6 x 18 mm Maximum table load: 1,350 kg Distance from spindle nose to table: 150 - 760 mm TRAVELS X axis: 1,270 mm Y axis: 660 mm Z axis: 610 mm A axis: 360 SPINDLE Maximum spindle speed: 12,000 rpm Spindle power: 18 kW Kdsdpjyarahofx Ah Njg Torque: 237 Nm Spindle taper: SK 40 TOOL MAGAZINE Number of tools: 40 Max. tool diameter: 75 / 125 mm Max. tool weight: 7 kg FEED Rapid traverse X/Y/Z: 30 / 30 / 20 m/min Working feed X/Y/Z: 15 m/min ADDITIONAL MACHINE DATA Dimensions (W x D x H): 3,250 x 2,220 x 2,950 mm Weight: 9,400 kg

Condition: used, Year of construction: 2014, Technical details: Kedpfx Ahex Th Amo Nedg turning diameter: 256 mm turning length: 455 mm swing diameter over slide rest: 260 mm travel -x axis: 198 mm travel -z axis: 508 mm turning speed range - main spindle: 4800 1/min power capacity - main spindel: 18 / 11 kW C-Axis: 0,01 ° turret (x-stations): 12 x VDI 30 Pos rapid power traverse in X-and Z direction: 19 / 24 m/min Number of driven tools: 12 Pos tool taper: VDI 30 Spindle speed driven tools: 5000 min -1 spindle hollow: 52 mm power capacity - driven tools: 4,4 kW total power requirement: 28 kVA weight of the machine ca.: 4.500 kg dimensions of the machine ca.: 2,9 x 2,3 x 2,2 m CNC lathe with tailstock, chipconveyor, hollow clamping cylinder, 3-jaw-chuck AUTO STRONG N 208, dia. 200mm, DXF, tooleye, Ultipockets, Synchronous threading, 3D Graphic, barloader ILS-BREUNING MUK 7012-III, Bj. 2017, accessories: incl. 2 pcs. live tools, incl. 34 pcs standard toolholders, hour meter: approx. 9.500h "machine on", approx. 2.000h "spindle on", approx. 300h "live tools on" *

Condition: used, Year of construction: 2016, controller manufacturer: Hurco, controller model: MAX5, _____ Kjdjxpb Swepfx Ah Nsdg Description: Year of manuf. : 2016 Control : Hurco MAX5 Speed : 12000 rpm Movement X/Y/Z : 1625/864/762 mm Spindle: Technology:Belt-driven spindle Speed:12.000 rpm Power (max.):18 kW Torque (max.):239 Nm Taper:SK40 Workingtable: Clamping surface:1.676 x 889 mm Tableloading (max.):2.722 kg In general: Toolmagazine:40 Stations Rapid travers in X/Y/Z:18/18/13,5 m/min Equipment/Accessory: Chipmanagement:Chip conveyor Coolingmanagement:Internaal cooling unit with filter and High-pressure, 20 bar Workpiecemeasurement:Touchprobe, Renishaw OMP 60 Toolmeasurement:Probe, Renishaw TS27R Setup operations:Electronic handwheel Furhter Equipment:Chiller, Trafo Further Accessory:Misc. toolholder

Condition: ready for operation (used), Year of construction: 2022, operating hours: 1,215 h, Control Unit Brand HURCO Model Twin Screen Hurco Max control Main Drive Spindle speed range 18000 Tool taper HSK A63 Movement X-Axis Movement 1067 mm Y-Axis Movement 610 mm Z-Axis Movement 610 mm Additional Equipment Tool Magazine: 40 station ATC Electric swing arm tool changer // Tool Measuring: Renishaw NC4 laser tool probe Spindle Probe: Renishaw RMP400 Coolant: Coolant Through Spindle / Coolant ring nozzles Swarf Conveyor: Swarf conveyor with coolant washdown jets Spindle Chiller: Included Extraction: Filtermist unit FX6002M Coolant gun: Air hose and pistol assembly Air: Air blast Comfort: Anti-fatigue mat Access: Top hood cover / wide opening doors This Hurco VMX42HSRTi was manufactured in 2022. It features a high-speed 18,000 rpm motorized spindle, HSK A63 tool taper, and a 40 station ATC electric swing arm tool changer. The machine includes a 600 mm rotary table and Renishaw probes for enhanced precision. Ideal for demanding machining tasks. Contact us for more information about this machine. Kdedpex Sz Dzofx Ah Nog Application Types Milling

Condition: ready for operation (used), Year of construction: 2018, operating hours: 2,195 h, General Data Measurements width 3767 Measurements depth 4954 mm Measurements height 3187 mm Machine weight 8400 kg Control Unit Brand HURCO Main Drive Spindle speed range 12000 / optional 16000 Spindle motor power 36.5 kw Tool taper SK40 Kjdpfx Ahox Sz D Ue Nodg Movement X-Axis Movement 1067 mm X-Axis Rapid Traverse 38 m/min Y-Axis Movement 610 mm Y-Axis Rapid Traverse 38 m/min Z-Axis Movement 610 mm Z-Axis Rapid Traverse 32 m/min B-Axis Movement +/- 90º B-Axis Rapid Traverse 50 rpm C-Axis Movement 360º C-Axis Rapid Traverse 100 rpm Table Tslots size 5 x 18 x 100 Min distance between vertical spindle and table 9 mm Max distance between vertical spindle and table 619 mm Table load 1360 kg Tools Slots in storage 40 Max weight 7 kg Max tool diameter 75 mm Max tool length 250 mm Media Chip conveyor Yes Additional Equipment Coolant capacity (l): 314 Equipped with: Renishaw calibration, through-spindle cooling, linear scales This 5-axis Hurco VMX 42 SRTi was manufactured in 2018. A universal machining centre, it offers advanced capabilities for complex and precise machining tasks. If you are looking to get high-quality milling capabilities, consider the Hurco VMX 42 SRTi machine we have for sale. Contact us for more information. Application Types Milling

Condition: good (used), Year of construction: 2004, functionality: fully functional, travel distance X-axis: 610 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 610 mm, - ULTIMAX 4 control - toolchanger for 24 tools - coolant through spindle - chip screw Kedpfxjx D A Dde Ah Nodg - electronical hand wheel - measuring feeler Renishaw Technische Daten / technical details: Verfahrweg X / X-Travel 610 mm Verfahrweg Y / Y-Travel 510 mm Verfahrweg Z / Z-Travel 610 mm Tischgröße / table size 760x510 mm Werkzeugschaft / spindle taper SK40 Drehzahlbereich / spindle speed 10-10000 UpM /rpm Anzahl der Werkzeugplätze / tool places in ATC 24 fach Eilgang / rapid feed 30 m/min Gewicht der Maschine ca. / weight 4700 Kg Technische Daten, Zubehör und Beschreibung der Maschine sind unverbindlich - Technical data, accessories and description of the machine are not binding.

Condition: ready for operation (used), Year of construction: 2015, General Data Machine weight 17000 kg Table Table load 2270 kg Main Drive Number of axis 3 Spindle Speed 12000 RPM Spindle motor power 18 kW Tool taper SK 40 Movement X-Axis Movement 2135 mm Z-Axis Movement 762 mm Y-Axis Movement 865 mm Tools Max weight 7 kg Kedpfex Stlwsx Ah Njdg This 3-axis Hurco VMX84i was manufactured in 2015. It features a WinMax control system, a table size of 2185 × 865 mm, and a maximum table load of 2270 kg. The machine offers a travel range of 2135/865/762 mm and a spindle speed up to 12000 RPM. It includes a 40-position automatic tool changer and through-spindle coolant. If you are looking to get high-quality milling capabilities, consider the Hurco VMX84i machine we have for sale. Contact us for more information. Application Types Milling

Condition: good (used), Year of construction: 2004, operating hours: 21,000 h, Hurco 3 axis vertical machining center in good condition with ca 21000 operating hours. Ready for immediate delivery (dismantled and transport ready). Cnc control Hurco Ultimax X-axis 600 mm Y-axis 355 mm Z-axis 455mm Motor 7.4 KVA Frequency 50 Hz Full load 13 KVA AC volts 3 phase 400 Capacity Tool Magazine 16 positions Type of tool holder SK40 Max spindle speed: 8000 rpm Kdsdpex Uqm Dofx Ah Nog Please note: The information on this page has been obtained to the best of our ability and belief. This information is provided in good faith, but its accuracy is not guaranteed. Accordingly, this information is not binding and does not constitute a contractual condition. We recommend that you check all essential details during an inspection of the machine. To save unnecessary travel costs for our customers, in most cases we recommend organizing a live video inspection.

Condition: used, Year of construction: 2002, x-travel 1.060 mm y-travel 610 mm z-travel 610 mm control Winmax 9 (Upgrade) table-size 1.270 x 610 mm max. table load 1.100 kg number of T-slots 5 T-slot - width 18 mm T-slot - distance 100 mm turning speed range - milling ~ 10.000 U/min power capacity - milling spindle 18 / 11 kW tool taper SK 40 Tool changer 24 pos. max. tool diameter 80 mm max. tool-dia with free toolbox 120 mm max. tool length 300 mm max. tool weight 7 kg feed ~ 15,4 m/min rapid traverse X-axis 30 m/min Ksdpfox R Enhjx Ah Nsdg rapid traverse Y-axis 30 m/min rapid traverse Z-axis 20 m/min weight of the machine ca. 7,0 t dimensions of the machine ca. 3,5 x 3,2 x 3 m Machining Center - Vertical HURCO VMX 42

Condition: used, Year of construction: 2013, operating hours: 12,000 h, Hurco VMX42i WinMax control Table clamping surface 1270 x 610 mm Table load 1750 kg Travel X axis 1067 mm y-axis 610 mm z axis 610 mm Tool holder SK 40 Spindle speed max rpm 12000 Spindle power max 18 KW Tool changer 30 times Tool diameter max 80/76 Tool length 300 mm Koderi N A Hopfx Ah Nodg Machine weight 6850 kg Coolant tank 484 liter

Condition: used, Year of construction: 2002, Technical details: x-travel: 1060 mm y-travel: 610 mm z-travel: 610 mm control: Ultimax 4 spindle speed:: 10 - 10.000 U/min tool taper: SK40 tool changer with: Trommelmagazin mit 24 Plätze places feed speed: XYZ: 3 - 7.000 mm/min rapid traverse:: XY: 30 m/min rapid traverse: Z: 20 m/min table-size: 1220 x 510 mm table load: 1,1 t air-pressure connection: für 6 bar bar Total power requirement: 30 kVA Weight approx.: 6,28 (ohne Anbauteile) t Kdedpfx Aeu Iddnoh Njg dimension machine xH: 2,82 x 3,2 x 2,7 m dimension swarf conveyor LxWxH: 3,0 x 0,65 x 1,5 The machine is currently in the technical department. delimited working area by chip splash guard cabin incl. cooling device with feeding (30bar internal coolant system) (size 1200x500x150mm) capacity for 340Liter spindle with internal coolant system Scraper belt chip conveyor control panel with two screens Attention! Tool gripper arm for tool change is missing on the machine! Is on sale with this limitation! i.D. *

Condition: used, Year of construction: 2006, Offer, subject to change: 1 used vertical machining center Manufacturer: Hurco, Type VM1, Serial number H-V12319, Year of manufacture: 2000 Control: ULTIMAX 4 Table dimensions: 762 x 356 mm X travel: 660 mm Y travel: 356 mm Z travel: 456 mm Spindle speed range: 10 – 10,000 rpm Tool changer: 20-station Kodpfx Ahjwl H Rms Nodg SK40 tool holder Rapid traverse rates X/Y/Z: 28 m/min Drive power: 11 kW Space requirement: L x W x H: 2,000 x 1,800 x 2,600 mm Weight: approx. 2,900 kg

Condition: used, Year of construction: 2006, functionality: fully functional, travel distance X-axis: 1,060 mm, travel distance Y-axis: 610 mm, travel distance Z-axis: 610 mm, controller model: Ultimax, total height: 2,800 mm, total length: 2,200 mm, total width: 2,400 mm, table width: 610 mm, table length: 1,270 mm, spindle motor power: 18,000 W, number of spindles: 1, number of slots in tool magazine: 24, Equipment: chip conveyor, documentation/manual, 3 axes Tool holder SK 40 Internal coolant Kdjdpfx Aowtdzroh Njg 35 kVA approx. 7550 kg Comprehensive tool package available separately

Condition: good (used), Year of construction: 2003, operating hours: 1 h, functionality: fully functional, machine/vehicle number: M644-06204013CFA, Hurco VMX 64 / 40t With Knoll coolant system Ksdpsx R Sunjfx Ah Njdg Internal coolant supply (IK)

Condition: used, Year of construction: 2000, functionality: not functional, Hurco VMX 50 machining center with Ultimax control IKZ chip conveyor Kdedpet H I Ugefx Ah Neg

Condition: ready for operation (used), Year of construction: 2008, General Data Measurements width 2400 mm Measurements depth 2300 mm Measurements height 2600 mm Machine weight 4300 kg Main Drive Spindle speed range 12000 Number of axis 5 Kodsx Nkpzspfx Ah Nedg Movement X-Axis Movement 610 mm Y-Axis Movement 510 mm Z-Axis Movement 610 mm Table Table load 1350 Additional Equipment Coolant system with IKZ (20 bar) Spindle cooler Large chip conveyor This 5-axis Hurco VMX 24t was manufactured in 2008, featuring a Winmax Version 9 control system, a robust table size of 762 x 510 mm, and a high-speed spindle at 12000 rpm. It supports a maximum table load of 1350 kg and offers extensive X, Y, and Z travels of 610 mm each. Accessories include a coolant system with IKZ, spindle cooler, and a large chip conveyor. Contact us for more information about this machine. Application Types Milling

Condition: not inspected (used), Year of construction: 2003, travel distance X-axis: 1,270 mm, travel distance Y-axis: 660 mm, travel distance Z-axis: 640 mm, Ultimax control BT 40 spindle, new in 2020 speed 10,000 rpm Kedpexu Ikqsfx Ah Nsdg travels 1270X660X640 mm 24-tool changer chip conveyor

Condition: good (used), Year of construction: 2006, Hurco machining center VMX 24 i IKZ chip worm spindle mount Sk 40 Ksdsudb I Topfx Ah Nedg

Condition: used, Year of construction: 2001, functionality: unexamined, travel distance X-axis: 610 mm, travel distance Y-axis: 510 mm, travel distance Z-axis: 610 mm, total height: 2,500 mm, total length: 2,200 mm, total width: 2,400 mm, table width: 510 mm, table length: 760 mm, table load: 1,000 kg, For sale is a 3-axis CNC milling machine from the Hurco brand and the type VMX 24 Technical data: - Year of manufacture: 2001 - Control: Winmax 4 - X axis: 610.0 mm - Y axis: 510.0 mm - Z axis: 610.0 mm - Table length: 760.0 mm - Table width: 510.0 mm - Max. part weight: 1000.0 kg - Length: 2200.0 mm - Width: 2400.0 mm - Height: 2500.0 mm - Weight: 4700.0 kg - Number of tool pockets: 24.0 Kjdsv Tcfkopfx Ah Njdg Pull bolts, which can be seen in pictures, are not part of the offer Transport and loading can be organized throughout Europe on request for an additional charge. Prices plus VAT Viewing possible by appointment. Contact us, our team will be happy to help you. Trade-in or exchange possible! Machine 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 more information or contact options, visit us on our website

Condition: ready for operation (used), Year of construction: 2006, TECHNICAL DATA Travel X 610 mm Kedpfx Aher Ar N Uj Njdg Travel Y 510 mm Travel Z 610 mm Table dimensions 760 x 510 mm Table clamping surface 760 x 510 mm T-slots 5 x 18 mm x 100 mm Distance spindle to table min./max. 150/760 mm Spindle holder steep taper DIN 69871 ISO 40 Spindle speeds 10 - 10,000 rpm Torque (at 500 rpm) 142 Nm Drive power (30 min/const. ED) 7.5 kW Ball bearing mounted linear guides in X,Y,Z axes Coolant tank 150 l Rapid traverse for X/Y/Z axis 30/30/20 m/min Feed rates programmable 3.0 - 7600 mm/min Positioning accuracy +/- 0.010 mm Repeat accuracy +/- 0.005 mm Milling feed in mm/min 3.0 - 11'400 Table load 700 kg Automatic tool changer with double arm 24 stations Max. tool diameter Tool diameter 80 mm Max. Tool length 300 mm Max. Tool weight 6.8 kg Machine weight 4100 kg Space requirement L x W x H (footprint) 3470 x 1980 x 2730 mm Power fuse 24 A Renishaw NC4 Laser

Condition: used, Year of construction: 2002, functionality: fully functional, The machining center has been inspected by a Hurco technician and found to be fully operational without any faults. Technical Data - Travel ranges: X 1,270 mm, Y 600 mm, Z 610 mm - Drive power: 30 kW - Spindle speed: 15,000 rpm - Spindle taper: SK 40 Type B - Feed rate: up to 23 m/min Work Table: - Dimensions: 1,500 mm x 660 mm - Max. workpiece weight: 1,300 kg Control: - Hurco Ultimax 4, incl. software for milling simulation - electronic hand control unit - Interfaces: RS 232C / V24 - 2 monitors for text and graphics processing - 2 software units for plain text and ISO programming Machine Construction: - High rigidity, suitable for roughing operations Kedpfx Asx Iikboh Nsdg Tool Changer: - Double-arm changer with 24 stations Equipment: - Cooling unit for milling spindle - Rinsing system for chip removal - Splash guard cabin - Coolant system with filtration - Internal coolant supply ICS 20 bar - Chip conveyor Machine Data: - Required space (without service areas!) LxWxH approx. 4,750 mm x 3,120 mm x 2,950 mm - Weight approx. 9,000 kg - Connected load 50 kVA, 400V, 50/60 Hz An inspection of the machine is possible by appointment. All tools and operating materials visible in the photos are not included in the scope of delivery. Technical changes and errors excepted.