Used Biesse Akron 855 for sale (330)

Condition: excellent (used), Automatic through-feed ELECTRONIC Drilling LINE (CNC controlled): W05022F) THROUGH-FEED MULTI-BORER “BIESSE” Techno FDT with CNC - N° 2 horizontal units (each with 2 drilling heads at 11 spindles each, HP 1.8 each), Ksdpfxjt Ig A Se Ag Ujdg - N° 6 bottom vertical units (each with 2 drilling heads at various spindles, HP 1.8 each) - N° 3 top vertical units (each with 2 drilling heads at various spindles, HP 1.8 each) - N° 5 top pressing devices + N° 2 endless screws to evacuate the wastes. With CNC NC 500 (Software Tooling System + Woodmaster) W05022G) THROUGH-FEED MULTI-BORER “BIESSE” Techno FDT with CNC - No. 2 horizontal units (each with 2 drilling heads at 11 spindles each, HP 1.8 each), - No. 6 bottom vertical units (each with 2 drilling heads at various spindles, HP 1.8 each) - No. 3 top vertical units (each with 2 drilling heads at various spindles, HP 1.8 each) - No. 5 top pressing devices + N° 2 endless screws to evacuate the wastes. 2nd Drilling Machine connected to the NC of the 1st Machine

Condition: excellent (used), AUTOMATIC Drilling and Dowels inserting LINE (2 machines): W12054A) THROUGH-FEED MULTI-BORER “BIESSE” Techno FDT - No. 2 through-feed motorised belts, feeding speed up to 75 m/min - No. 2 horizontal units (each with 2 drilling heads at 11 spindles each, HP 1.8 each), - No. 5 bottom vertical units (each with 2 swivelling drilling heads at various spindles, HP 2.3 ea) - No. 1 top vertical unit (with 2 swivelling drilling heads at various spindles, HP 2.3 each) - No. 5 top pressing devices - No. 2 endless screws to evacuate the wastes. With NC (software Modul Tooling System) to control, manage and run the 2 machines of this line W12054B) THROUGH-FEED MULTI-BORER & DOWELS INSERTER “BIESSE” Techno SDT Kdjdpfjvnq Txex Ag Ueg - No. 2 through-feed motorised belts, feeding speed up to 75 m/min - No. 2 horizontal units (each with 8 inserting nozzles, such as Glue injectors and dowel drivers) - No. 3 bottom units (each with 2 swivelling drilling heads at various spindles, HP 2.3 each) - No. 1 top vertical unit (with 2 swivelling drilling heads at various spindles, HP 2.3 each) - No. 3 Top pressing devices - No. 2 endless screws to evacuate the wastes.

Condition: excellent (used), Numerical Control Type NC 400 Through-feed motorized conveyoring belts (No.) 2 No. 2 Horizontal units/supports Drilling heads for each horizontal unit (N°) 2 Splindles for each horizontal drilling head (N°) 11 Max. working width (mm) 3200 Min. working width (mm) 205 (ca.) No. 5 Bottom vertical units/supports Drilling heads/blocks for each bottom vertical unit (N°) 2 No. 2 Top vertical units/supports Drilling heads/block for each top vertical unit (N°) 2 Vertical top pressure clamps (N°) 4 Transport belt to evacute chips (wastes) Digital quota (axes) display Kodpfjidqd Tsx Ag Usdg Total installed power (Kw) 59,1 The CNC controls the movement (X axe) of the mobile horizontal unit The CNC controls the movement (Y axe) of the stops The CNC controls the movement (X axe) of the conveyor belts

Condition: excellent (used), Numerical Control Type NC 400 Through-feed motorized conveyoring belts (No.) 2 No. 2 Horizontal units/supports Drilling heads for each horizontal unit (N°) 2 Splindles for each horizontal drilling head (N°) 11 Ksdpfx Ageidqf Rs Uodg Max. working width (mm) 3200 Min. working width (mm) 205 (ca.) No. 6 Bottom vertical units/supports Drilling heads/blocks for each bottom vertical unit (N°) 2 No. 3 Top vertical units/supports Drilling heads/block for each top vertical unit (N°) 2 Vertical top pressure clamps (N°) 5 Transport belt to evacute chips (wastes) Digital quota (axes) display Total installed power (Kw) 59,1 The CNC controls the movement (X axe) of the mobile horizontal unit The CNC controls the movement (Y axe) of the stops The CNC controls the movement (X axe) of the conveyor belts

Condition: excellent (used), Universal DOUBLE-SIDE SIZING & EDGE BANDING MACHINE (for both 1st and 2nd pass) Edges (tape) thickness in rolls (min/max) mm 0,3 - 3 Panels thickness (min/max) mm 10 - 60 Working width (min/max) mm 240 - 2700 Numerical Control PC Base Windows /Software SINITRA Adjustable feeding speed (m/min ) 10 - 40 (INVERTER C.N.) Distance (center-axes) of the Disappearing Dogs (mm) 500 SIZING PART (for each side): Anti-chipping Milling Unit AS 10 (Kw 5,8) pneumatic N° 2 Hogging Units (1 Top + 1 Bottom) DT 10 (Kw 5,8 x 2) Spraying unit (Anti-sticking liquid) EDGE-BANDING PART (for each side): 1° Glueing Unit (Hot Melt + Quick Melt Unit) SP30 (High Melt + Edge Control EC 40) 2° Glueing Unit (Thermofusion with hot air) Air Force System Band Pressure zone (N.C. adjustment) . Edge coils supporting unit (No. 6 reels) Snipping (end-cutting) unit IT 90-X (Kw 0,65 x 2) speed 28m/min. 0 - 25° Ksdpsu Rc Anofx Ag Usdg Rough Trimming unit RS 10 (2 x Kw 2) Fine Trimming unit (Multi-profile, by N.C.) RF 40 (Kw 1 x 2) 0 - 25° Multi Function Unit (Profile contour Trimming unit) AR 80 (Kw 0, 65 x 2) max speed 25 m/min - ROTAX motors with automatic tool change (tools) Profile Scraping unit (Multi-profile, by N.C.) RB 40 (multiprofile) Glue scraping unit RC 20 + Spraying Unit (for polishing liquid) Buffing unit SZ 30 (Kw 0,37 x 2)

Condition: excellent (used), Double-side Sizing & Edge Banding - First Machine (1st in a line) Double side TWIN machine (1 Left Side single machine + 1 Right-side sigle machine) Edges (band in rolls) thickness (Min/Max) mm 0,3 / 3 Panels thickness (min/max) mm 10 / 60 Working width (min/max) mm 100 / 1200 Numerical Control PC base Windows /Software PC / SINTRA Adjustable feeding speed (m/min) 10 - 40 (INVERTER C.N.) SIZING PART (for each side): Spraying unit (Anti-sticking liquid) No. 2 Hogging Units (1 Top + 1 Bottom) DT 10 (Kw 5,8 x 2) Free space EDGE-BANDING PART (for each side): 1° Glueing Unit (Hot Melt Glue + Quick Melt system) SP 30 (High Melt + Edge Control EC 40) 2° Glueing Unit (Thermofusion with hot air) Air Force System Band Pressure zone (N.C. adjustment) Edge coils supporting unit (No. 6 reels) Rough Trimming unit RS 10 (2 x Kw 2) Fine Trimming unit (Multi-profile, by N.C.) RF 40 (2 x Kw 1) 0°-25° Kedpeu Rc Hyefx Ag Usdg No. 1 Milling grooving unit EB 60 (1 x Kw 5) 0°-90°, ISO 30 motor Profile Scraping unit (Multi-profile, by N.C.) RB 40 Glue scraping unit RC 20 Spraying Unit (for polishing liquid) Buffing unit SZ 30 (2 x Kw 0,37)

Condition: excellent (used), ELECTRONIC (CNC control) machine, Numerical Control Type NC 500 - Software Tooling System N. 2 Through-feed motorized conveyoring belts - Feeding speed (m/min) 35 - 75 ca. N. 2 Horizontal units/supports Drilling heads for each horizontal unit (N°) 2 x HP 1,8 Max. working width (mm) 3200 - Min. working width (mm) 215 N. 7 Bottom vertical units/supports Drilling heads/blocks for each bottom vertical unit (N°) 2 x HP 1,8 N. 3 Top vertical units/supports Drilling heads/block for each top vertical unit (N°) 2 x HP 1,8 Kedpfx Ajhvi Dueg Ujdg N. 5 Vertical top pressure clamps - N. 2 Motorized endless screws to evacuate wastes/chips The CNC controls the movement (X axe) of the mobile horizontal unit The CNC controls the vertical movement (Hv) of the 2 horizontal units The CNC controls the movement (X axe) of all the vertical units The CNC controls the movement (Y1 and Y2 axes) of the boring heads The CNC controls the movement (Y axe) of the stops The CNC controls the movement (X axe) of the pressure clamps The CNC controls the movement (X axe) of the conveyor belts The CNC controls programming of the working cycles

Condition: excellent (used), Numerical Control Type NC 400 (with work cycle management software) Through-feed motorized conveyoring belts (No.) 2 Max. working width (mm) 3200 - Min. working width (mm) 205 (ca.) No. 2 Horizontal units/supports Drilling heads for each horizontal unit (N°) 2 Kdsdpoi D D Tfjfx Ag Usg Splindles for each horizontal drilling head (N°) 11 No. 4 Bottom vertical units/supports Drilling heads/blocks for each bottom vertical unit (N°) 2 No. 2 Top vertical units/supports Drilling heads/block for each top vertical unit (N°) 2 Vertical top pressure clamps (N°) 2 Motorized endless screws to evacuate wastes/chips (N°) 2 Digital quota (axes) display Total installed power (Kw) 25 The CNC controls the movement (X axe) of the mobile horizontal unit The CNC controls the movement (Y axe) of the stops OPTION: Front feed hopper/loader (for narrow pieces: Min 60mm - Max 260mm)

Condition: excellent (used), FULL LINE (4-SIDES) of Sizing-Milling & Edge Banding, with fast automatic handling. also for NARROW PIECES (min. mm 65). With 3 full-CN drilling machines (1 for side-drilling on lenghtwise) and 1 Splitter Composed of the following machines: W05024A) Loader (gantry-portal) "RBO (BIESSE)" Mod. Winner C W05024B) 1st Single-side (Left) Sizing & Edge Bander "BIESSE" Mod. Stream SB1 TWIN W05024C) 2nd Single-side (Right) Sizing & Edge Bander "BIESSE" Mod. Stream SB1 TWIN W05024D) 1st 90° Turning device "RBO (BIESSE)" Mod. GPK-1 (Lengthwise to Crosswise) W05024E) Double-side Sizing & Edge Bander "BIESSE" Mod. Stream SB2 / 11.0 W05024F) Multi-Borer, with CN "BIESSE" Mod. Techno FDT W05024G) Multi-Borer, with CN "BIESSE" Mod. Techno FDT W05024H) 2nd 90° Turning device "RBO (BIESSE)" Mod. GPK-2 (Crosswise to Lengthwise) W05024I) Multi-Borer, with CN "BIESSE" Mod. Techno FDT (side-drilling on lenghtwise) Kdsdpjtr Envofx Ag Ujg W05024J) Splitting Saw (Splitter) Lengthwise "TECNOLOGICA" W05024K) Brush-cleaning machine "WANDRES" W05024L) Stacker (Bridge-Frame) "RBO (BIESSE)" Mod. Winner S

Condition: excellent (used), FULL LINE of Double-side Sizing-Milling & Edge Banding, max working width mm 3000, with automatic handling. Composed of the following machines: X03001A) Double Loader "RBO" Mod. Winner C 3200 with central motorised roller conveyor X03001B) 1st Double-side Sizing & Edge Banding "BIESSE" Mod. Stream SB 1 - 7.5 X03001C) Turning station (90°) lengthwise to crosswise "RBO" Mod. GPK 1 X03001D) 2nd Double-side Sizing & Edge Banding "BIESSE" Mod. Stream SB 2 - 11 Kedoi Rbg Tepfx Ag Ujdg X03001E) Turning station (90°) crosswise to lengthwise "RBO" Mod. GPK 2 X03001F) Double Stacker "RBO" Mod. Winner S 3200 with central motorised roller conveyor

Condition: refurbished (used), FULL LINE of Drilling, max working width mm 3200, with fast automatic handling equipment. Composed of the following machines: A) LOADER (Portal) "RBO" Winner C 3200 with double pick-up and central motorized rollers table. With 2 on-ground motorized rollers ways to in-feed the piles (stacks) of panels to loader. B) TRANSFER (Connecting Rollers Table with 90° conveyoring belts) “RBO” Mod. Transfer TA 90° C) 1st Auotmatic BORER "BIESSE" Mod. Techno FDT with No. 2 Horizontal Units + No. 7 Vertical Bottom Units D) 2nd Automatic BORER "BIESSE" Mod. Techno FDT with No. 2 Horizontal Units + No. 7 Vertical Bottom Units Kedodfgg Ispfx Ag Usdg E) TRANSFER (Connecting Rollers Table with 90° conveyoring belts) “RBO” Mod. Transfer TA 90° G) UNLOADER-STACKER (Portal) "RBO" Winner SC 3200 with double pick-up, with double storage station, with central motorized rollers table. With 2 on-ground motorized rollers ways to out-feed the piles (stacks) of panels from the Unloader

Condition: excellent (used), C.N.C. WORKING CENTER with 3 axes (X-Y-Z) - Goose-neck type Movable panel (workpiece), static working head, Horizontal position of the panel (workpiece) Kdedswb Allopfx Ag Usg Numerical Control with Software BiesseWorks (Separate electric and command cabinet) Safety cabin (enclosure) of the working head, Front emergency carpets In-feeding working table (panel support) No. 2 Workpieces fixing clamps (for the panels introduction in the working area) Out-feeding table (with motorized belts) Minimum workpieces dimensions (X - Y - Z) mm 90 x 70 x 8 (ca.) Maximum workpieces dimensions (X - Y - Z) mm 3000 x 1300 x 60 (ca.) Total installed power (Kw) 24 BOTTOM WORKING UNITS: Independent vertical boring spindles (No.) 29 Independent horizontal boring spindles (No.) 10 (8 X + 2 Y) Circular Grooving Saw (on X axis) dia. (mm) 160 (1 x kw 3,5 ca.) Vertical electro-spindle (No.) ISO 30 (1 x kw 4,5 ca.) TOP WORKING UNITS: Indipendent vertical drilling spindles (No.) 29 Indipendent horizontal drilling spindles (No.) 10 (8 X + 2 Y) Circular Grooving Saw (on X axis) dia. (mm) 160 (1 x kw 3,5 ca.) Vertical electro-spindle (No.) ISO 30 (1 x kw 4,5 ca.)

Condition: excellent (used), FULL LINE of 4 Side Sizing-Milling & Edge Banding (also SOFTFORMING), through-feed drilling and splitting of panels. Complete with fast automatic handling. Composed of the following machines: A) Loader (Bridge-Frame) "RBO (BIESSE)" Mod. Winner C (1) B) 1st Double-side Sizing & Edge Bander "BIESSE" Mod. Stream SB1 11.0 Softforming C) 1st 90° Turning device (Lengthwise to Crosswise) "RBO (BIESSE)" Mod. GPK-1 D) 2nd Double-side Sizing & Edge Bander "BIESSE" Mod. Stream SB 2 9.5 E) 2nd 90° Turning device "RBO (BIESSE)" Mod. GPK-2 (straight or Crosswise to Lengthwise) F) Multi-Borer with CN "BIESSE" Mod. Techno FDT CN (with 2 horizontal working units, 6 vertical bottom working units and 3 vertical top working units) G) Multi-Borer with CN "BIESSE" Mod. Techno FDT CN (with 2 horizontal working units, 6 vertical bottom working units and 3 vertical top working units) H) 3rd 90° Turning device "RBO (BIESSE)" Mod. GPK-3 (straight or Crosswise to Lengthwise) I) Splitting Saw (Splitter) Lengthwise "GM (for BIESSE)" Mod. Split 4-84 LT Kdedpfettgy Hsx Ag Uog L) Stacker (Bridge-Frame) "RBO (BIESSE)" Mod. Winner SC (2)

Condition: excellent (used), C.N.C. WORKING CENTER 3 axes (X-Y-Z) - Goose-neck type - Movable panel (workpiece), static working head - Horizontal position of the panel (workpiece) - Numerical Control with Software Biesse Works - Safety cabin (enclosure) of the working head - Front emergency carpets - No. 1 In-feeding table (with motorized belts) SX - No. 2 Workpieces fixing clamps (for the panels introduction in the working area) - No. 1 Out-feeding table (with motorized belts) DX - Max. useful working area (X - Y - Z) mm 3000 x 1000 x 60 - Minimum workpieces dimensions (X - Y - Z) mm 200 x 70 x 8 (for longer panels than mm 2000, minimum thickness is mm 13) - Maximum workpieces dimensions (X - Y - Z) mm 3000 x 1000 x 60 - Total installed power Kw 20 BOTTOM WORKING UNITS: - No. 1 Vertical electro-spindle HSK D-50 (power HP 4.8) with Inverter - No. 1 Circular Grooving Saw (on X axe) dia. mm 150, power HP 2,3 with Inverter - No. 29 Vertical drilling spindles - No. 10 Horizontal drilling spindles (8 in X axe + 2 in Y axe) TOP WORKING UNITS: - No. 1 Vertical electro-spindle HSK D-50 (power HP 4.8) with Inverter Kodpjdh Tf Uefx Ag Uodg - No. 1 Circular Grooving Saw (on X axe) dia. mm 150, power HP 2,3 with Inverter - No. 29 Vertical drilling spindles - No. 10 Horizontal drilling spindles (8 in X axe + 2 in Y axe)

Year of construction: 2018, condition: ready for operation (used), This 4-axis BIESSE Rover S FT 1536 was manufactured in 2018. It features a robust gantry design, a working area of 3765 × 1560 mm, and a main spindle power of 13.2 kW. Equipped with a HSK-F63 tool holder system, 12-position disc-type tool changer, and a BIESSE BH 10 drilling unit with comprehensive vertical and horizontal drilling capabilities. It also includes a grid vacuum table, dual 500 m³/h vacuum pumps, and is DXF file compatible. Contact us for more information about this machine. Application Types Kedpfx Agex D Iqvs Ujdg CNC Wood Machining

Condition: good (used), Year of construction: 2013, functionality: fully functional, Working area: X-axis 3,200 mm (support extensions available) Y-axis 900 mm Workpiece handling via collet chuck Kodpexxpmzefx Ag Uodg Automatic workpiece length measurement Drilling unit: 10 individually selectable vertical drilling spindles 6 individually selectable horizontal drilling spindles Grooving saw unit in X-direction Milling unit with 4.5 kW motor, fitted with ER32 collet chuck (no ISO 30 quick-change system) BIESSE WORKS EDITOR Second BIESSE WORKS dongle for office workstation

Condition: used, machine/vehicle number: 007565, X axis working area: 3200 mm Y axis working area: 900 mm Main Electrospindle power: 4.5 KW Number of controlled axes: 3 axes Total number of drilling spindles: 16 Kodpfx Agewuclls Uedg

Condition: used, machine/vehicle number: 007811, Position 1: Panel Feeding and Loading BIESSE - RBO-STREAM SB Position 2: Double Sided Squaring/Edgebanding Machines BIESSE - RBO-STREAM SB Position 3: Panel Turning Device BIESSE - RBO-STREAM SB Position 4: Double Sided Squaring/Edgebanding Machines BIESSE - RBO-STREAM SB Position 5: Automatic Drilling Machine BIESSE - RBO-STREAM SB Kdjdpfxov Dyxco Ag Ujg Position 6: Automatic Drilling Machine BIESSE - RBO-STREAM SB Position 7: Panel Turning Device BIESSE - RBO-STREAM SB Position 8: Panel Stacking and Offloading BIESSE - RBO-STREAM SB

Condition: good (used), TECHNICAL DATA *Min/Max panel height: 10 / 60 mm *Min/Max edge height: 15 / 65 mm *Min/Max edging thickness: 0.3 / 3 mm *Panel overhang from conveyor belt: 35 mm *Minimum panel length: 240 mm *Minimum panel width: 240 mm *Feed speed: (to be confirmed) *Pneumatic connection: available LINE CONFIGURATION *Shaper unit (toupie) *Double pre-milling unit *Gluing unit *6-position edge magazine *End trimming unit Kdsdpfx Agsvvcd Sj Usg *Overlapping double trimming unit *Corner trimming unit *Rounding unit with 4 motors *Shaper unit (toupie) *Edge scraping unit *Glue scraping unit *Hot air unit (phon) *Brushing unit *NC 410 control system AUTOMATION *RBO gantry loader model SELECTA C, double station *RBO rotary panel turner model GP

Condition: used, Year of construction: 2005, 2005 BIESSE ROVER B 4.40 FT 3-axis CNC machining center Technical features in the last photo Kjdpfx Ajwmdynjg Uodg Engine hours on: 45,343 Machine hours in automatic operation (work): 27,267

Condition: like new (used), Year of construction: 2019, functionality: fully functional, New wide belt sanding machine for wood panels (including dust extraction) Kodpfxexxlz Uo Ag Ujdg

Condition: excellent (used), Year of construction: 2011, functionality: fully functional, travel distance X-axis: 4,600 mm, travel distance Y-axis: 1,535 mm, travel distance Z-axis: 250 mm, Vertical electrospindles: 2 Main motor power: 12 kW 4th axis: C axis Tool system: HSK-F63 Tool changer: 22 positions Vertical drilling heads: 29 Horizontal drilling spindles X: 8 Horizontal drilling spindles Y: 4 Grooving saw in X direction Number of clamps/bars: 8 1 vacuum pump with a capacity of 250 m³/h Safety mat Control: BIESSE XP 600 Software: DIREKT CNC NC-HOPS 5.6 Includes 4 aggregates (door milling, etc.): Kdodpsx Ir Eusfx Ag Uog Drilling, milling and cutting aggregate with 4 spindles Cutting and milling aggregate Lock case aggregate on both sides Lock case aggregate

Condition: used, Year of construction: 2004, functionality: fully functional, travel distance X-axis: 2,971 mm, travel distance Y-axis: 1,280 mm, travel distance Z-axis: 180 mm, rapid traverse X-axis: 100 m/min, rapid traverse Y-axis: 100 m/min, rapid traverse Z-axis: 30 m/min, total height: 2,450 mm, total length: 5,788 mm, total width: 4,153 mm, overall weight: 3,950 kg, number of slots in tool magazine: 20, input voltage: 600 V, Equipment: documentation/manual, We offer this used Biesse Rover 24 ATS S2 machining center, year 2004. (4-axis) Year of manufacture: 2004 Pneumatic supply: 6.5-7.5 bar Extraction air speed: 30 m/s Weight: 2,950 kg Kedex Rvqgopfx Ag Uedg Worktable with CNC machine + 1,000 kg computer cabinet and additional equipment. 4-axis CNC machine Working area: X 2,971 mm / Y 1,280 mm / Z 180 mm 2 working zones (left / right) 29 vertical positions 5 horizontal positions X 2 horizontal positions Y 1 saw on the X and Y axes (180 mm) 1 saw on the X axis (120 mm) Angle head 6 support rails Automatic tool changer – 18 positions + 2 positions at the front Vacuum pump: 100 m³/h Main motor: 7.5 kW Safety mats Operating manuals and all documentation included Required installation space (LxWxH): 5,800 × 4,500 × 3,000 mm If you have any additional questions or need more information, please send us a message or call us.

Condition: good (used), Year of construction: 1997, functionality: fully functional, CNC machining center Biesse Rover 20 Year of construction 1997 Manufacturer Biesse Italy S/N 64851 Working area 2.893 x 950 mm 6 traverses with 12 vacuum cups Kdsdpfjtpuu Dex Ag Uog Milling spindle with ISO 30 tool holder 3.6 kW, drilling unit: 10 vertical drills 6 horizontal drills Grooving saw, 6-fold tool changer. NC410 control unit Color screen Total power consumption 10 Kw 400 V , 50 Hz with safety fence ( not on the pictures ) 3 step mats with Becker vacuum pump, 3,0 Kw CE marked 1900 kg

Year of construction: 2001, condition: ready for operation (used), Biesse Rover 22 CNC machining centre Year of manufacture 2001 SN 07498 Working range 4 axes X-axis 3060 mm Y-axis 1080 mm Z-axis 155 mm 6 consoles with 18 vacuum cup holders Kdsdpfx Aoggxihsg Ueg 4 pneumatic bakelite bars for lifting the platen Vertical electrospindle 7,5 kW with automatic tool change, ISO 30 taper Automatic tool change 7 positions on the working head Drilling head with 20 spindles arranged as follows: 7 vertical in X-axis 7 vertical in Y-axis 4 horizontal in X-axis 2 horizontal in Y-axis Grooving saw 120mm Safety tread mats 110 m3 / h vacuum pump CE marked Weight 3500 Kg Technical specifications subject to change