Used 2-Axis Teach-In / Cycle Controlled Cnc for sale (99,612)

Condition: used, CNC lathe GILDEMEISTER, type GD 160 with Gildemeister - Fanuc Mate TS control - Power chuck BERG, Ø 200 mm - 12-station tool turret, VDI 40 - 6 tool holders VDI 40, installed Machine footprint with chip conveyor: L x W x H 4200 x 2200 x 2100 mm Weight: approx. 4 tons We are making room Bsdsy T R Irepfx Am Rewn Affordable machine – ideal for export

Condition: used, Year of construction: 2016, Used machine Year of manufacture: 2016 Equipment and technical data: - Electrical connection: 3x400V 50 / 60Hz - Cardanic 5-axis electrospindle 12 kW (S6) HSK F63 - 24,000 rpm - Ceramic bearings including liquid cooling with infinitely variable, height-adjustable dust extraction hood – controlled by electric motor - Full rated power at approximately 12,000 rpm - Speed range: 1,000 – 24,000 rpm - Drive: 3-phase high-frequency motor controlled via inverter - Rotational direction: right/left - 2 controlled compressed air connections - Interface for aggregates - Tool weight (rotating): 6 kg - Maximum saw blade diameter: 350 mm - Spindle cooling: liquid cooling Bjdpfx Amjy Ih Rge Rjwn - Continuously adjustable extraction hood - Profit H350 16.30: CNC machining center in gantry design (without tools) with digital drives (driven on both sides). The machine frame of the Profit H350 16.30 is made from thick-walled, electro-welded box sections. The internal steel ribbing in the frame ensures high stability. - Machining area H350 16.30: Axis travel: X = 4,000 mm Y = 1,970 mm Z = 455 mm Working area: X = 3,000 mm Y = 1,500 mm Z = 150 mm clearance height Axis positioning speeds: Depend on the selected safety system (can be taken from the layout). - Gantry drive on both sides - X-axis guidance system: The carriage of the X-axis is driven by a rack and pinion with helical, crowned teeth—this ensures maximum precision. The reduction gear guarantees the highest machining quality and repeat accuracy. The slideways use recirculating ball carriages running on encapsulated, hardened and ground linear guides. - Y-axis guidance system: Slideways use recirculating ball carriages running on encapsulated, hardened and ground linear guides. The Y-axis is positioned by a ground ball screw. - Z-axis guidance system: Slideways use recirculating ball carriages running on encapsulated, hardened and ground linear guides. The Z-axis is positioned by a ground ball screw. - Automatic central lubrication: Grease is supplied under control to the guide carriages of the X, Y, and Z axes as well as to the recirculating ball screws on Y and Z. Lubrication is performed automatically after a preset interval. - 12-position linear tool changer mounted on the left side of the machine frame, including one pickup station for aggregates: The 12-position linear changer ensures minimal changeover times and offers ample space for milling tools. One station for aggregates (see layout for configuration options). Maximum tool diameter: 250 mm Maximum tool length: 240 mm - Drill head DH 18 6H 1S: Vertical: 12 spindles—7 in X-direction and 5 in Y-direction. Horizontal: 6 spindles—4 in X-direction and 2 in Y-direction. Stroke = 70 mm; max. drill length = 70 mm; shank diameter = 10 mm. All spindles individually driven and selectable. 1 grooving saw in X-direction; maximum saw blade diameter 120 mm.

Condition: ready for operation (used), Lang CNC L-Step 22/2 MFP stepper motor controller, SN: V / 200 - 240 V / 50 - 60 Hz, used, in good condition, 100% functional, scope of delivery as per photos. Bedpfxoy Sdvao Am Rown

Condition: used, Year of construction: 2014, total height: 2,800 mm, total length: 10,300 mm, total width: 2,450 mm, Colour: Grey Empty weight: 6.600 kg Price: On request - Year: 2014 - Documentation available: No Bedpfxoytcl Ij Am Rown - CE marking present: Yes - CE certificate present: No - Serial number: AA2/002546 - Number of milling spindles [pcs.]: 1 - Type milling table: Beam table - Drilling unit present: Yes - Tool changer positions [pcs.]: 24 - Vacuum pump present: Yes - └ Number [pcs.]: 1 - └ Brand: Becker - └ Type: Vtlf 250 - └ Year of manufacture: 2008 - └ Main motor power [kW]: 5.5 - └ Connection diameter [mm]: 70 - └ Oil free: Yes - Tools included: Yes - Table length [mm]: 5200 - Table width [mm]: 1300 - Voltage [V]: 400 - Current consumption [A]: 64 - Transport dimensions: 10300mm x 2450mm x 2800mm (l x w x h) - Transport weight [kg]: 6600kg - Transport packages [pcs.]: 1 Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Delivery and trade-in always possible for everything in the industrial sectors Glenn Smeets

Condition: used, Year of construction: 2003, Technical details: turning diameter: 720 mm turning length: 2000 mm control: 4110 total power requirement: 40 kW weight of the machine ca.: 6 t dimensions of the machine ca.: 4,5 x 2,3 x 1,9 m turning length: 2000 mm centre height: 345 mm internal taper -metric: 100 mm spindle bore: 92 mm tailstock-quill taper dia.: 100 mm Bjdpfx Amoy Tnaxe Rswn turning diameter over bed: 720 mm

Condition: good (used), Working area Maximum turning diameter 400 mm Maximum turning length 5000 mm Swinging diameter over bed 840 mm Swinging diameter over carriage 530 mm Spindle speed 14.6 – 1250 rpm Bedey Ug U Depfx Am Rswn Drive power 18.5 kW Dimensions 8.0 × 1.9 × 1.7 m Weight approx. 6.3 – 8.2 t

Condition: excellent (used), Year of construction: 2006, CNC Teach-in Lathe COLCHESTER Alpha 1350 XT Travel X: 245 mm Numerical Command FANUC Between points: 650 mm Maxi turning diameter: Ø 350 mm Spindle diameter: Ø 41 mm Bjdezblhnopfx Am Rewn Max Rotation: 3500 RPM Turret: 8 tools VDI 30 Year of construction: 2006 Spindle motor: 5,5 kW 3 speed ranges Centralized lubrication pump Delivered with 2 3-jaws chuck Ø 160 mm Delivered with some tool holders (see photos) Voltage: 380 V Dimensions (L x W x H): 2500 x 2000 x 1900 mm Weight: approx 2 T Machine in very good condition

Condition: used, Year of construction: 2009, Automatic central lubrication Milling unit 7833 2-stage, 11 kW power 1000 - 24000 rpm 1 double drilling spindle in X-direction 1 integrated sawing unit for sawing / grooving in X-direction, traveling Tool changer 7892, 16-way Linear Pick-up changer, permanently installed on the right-hand side of the machine Laser pointer consisting of 2 laser pointers for positioning the vacuum suction cups or tracing the workpiece contour Automatic console - suction cup positioning 6 consoles including 3 suction cup holders per console including 1 vacuum suction cup 80x80 mm per suction cup holder including 4 feeding aids Additional processing fields at the front for 6 consoles Basic unit pneumatics for frame clamping system 7974 (6 consoles) 2D barcode scanner Video camera in the processing head Vacuum pump 140 m³/h Vario tool Change changing unit package consisting of Consists of: Vector axis 7899 (C-axis), fully interpolating, 0-360° continuously rotatable, including pneumatic tool changer 7890, single-slot magazine pick-up system, permanently installed in front of the machine frame on the left. Tool changer 7894, 6-slot pick-up magazine specifically for Vario Tool Change tool holders, permanently installed in the machine frame on the left, can be equipped with a Vario Grip KSJ F 40 collet chuck, 3 Vario Grip KSJ F 40 tool holders (for 2-20 mm ER32 collets), 1 saw blade holder, 3 collets according to customer selection, 1 carbide circular saw blade, max. 220 mm diameter. Storage location: Nattheim Bsdpfx Amjvvi Sps Rswn

Condition: excellent (used), 4-axis hydraulic CNC press brake with HACO-Robosoft ATS 590 Graphic control unit (modernized in 2008) and CE conformity Press force: 135 t Bending length: 4000 mm Dimensions (L x W x H): approx. 4500 x 1600 x 2430 mm Weight: 10,500 kg Accessories / Special features: • 4-axis CNC control HACO ATS 590 Graphic (axes Y1 + Y2, X, R) for stroke depth, back gauge, and back gauge fingers (top/middle/bottom) • Back gauge fingers can be manually set together/apart • Graphical programming and display • CE-compliant due to single working speed • Hydraulic synchronization control • Manual crowning adjustment with handwheel under the die, featuring SIKO position indicator • Segmental upper tools, as new • Continuous universal die with 4 different V-openings (up to max. V = 40 mm), as new • Additional segmented upper and lower tools • Busbar • PROMECAM tool clamping system • 2 support arms • Fast, precise, and easy to adjust • Foot pedal and emergency stop • Electrically interlocked safety doors (right, left, rear) • Single working speed, fast return stroke • CE-compliant Safety inspection (UVV) valid until 04/2027 Bwodpfx Amox Npiyj Rjn Delivery: immediately ex stock Dortmund, free loaded on truck Siegfried Volz Werkzeugmaschinen Rüschebrinkstr. 151-153 DE - 44143 Dortmund - Wambel / Germany

Condition: good (used), Year of construction: 2001, functionality: fully functional, turning diameter over cross slide: 150 mm, spindle bore: 51 mm, turning length: 750 mm, turning diameter: 320 mm, rapid traverse X-axis: 8 m/min, rapid traverse Z-axis: 10 m/min, spindle speed (min.): 10 rpm, spindle speed (max.): 4,000 rpm, total length: 2,450 mm, total width: 1,668 mm, total height: 1,825 mm, travel distance cross slide: 150 mm, overall weight: 2,000 kg, three-jaw chuck diameter: 200 mm, travel distance Z-axis: 700 mm, Equipment: rotational speed infinitely variable, Machine is still in good working condition and can be inspected under power. Bedjy Iwhbjpfx Am Rswn Additional options & accessories: - Bison 3-jaw chuck Ø200mm - Various MK reducing sleeves - Drill chuck - Original documentation Weight & dimensions: - 2000 kg - 2450 x 1668 x 1825 mm (LxWxH)

Condition: like new (used), Year of construction: 2022, operating hours: 1,496 h, functionality: fully functional, turning diameter over cross slide: 600 mm, turning length: 510 mm, turning diameter: 300 mm, spindle bore: 51 mm, spindle speed (max.): 6,000 rpm, travel distance X-axis: 205 mm, travel distance Z-axis: 560 mm, spindle motor power: 15 W, rapid traverse X-axis: 30 m/min, rapid traverse Z-axis: 36 m/min, type of input current: AC, overall weight: 3,600 kg, power: 30 kW (40.79 HP), input voltage: 400 V, Equipment: documentation/manual, rotational speed infinitely variable, 5-axis CNC lathe "DN Solutions model LYNX 2100LMSA" with sub-spindle, driven tools and CNC FANUC i-PLUS iHMI complete with "TOP model FUSION" bar loader. Bedpfx Aotq Aylem Rswn

Condition: not inspected (used), Year of construction: 2008, operating hours: 12,799 h, functionality: unexamined, machine/vehicle number: 14508674, This Fehlmann Picomax 60-M – 5-axis CNC machining center, including accessories, is being auctioned off in our online auction “Zink Feinmechanik-Sondermaschinen GmbH – CNC Machining Centers – Tool Holders – Tools – Workshop Equipment.” Machine Data: Manufacturer: FEHLMANN AG Maschinenfabrik Machine Type: PICOMAX 60-M Machine No.: 14508674 Year of Manufacture: 2008 Control: Heidenhain iTNC 530 Operating Hours: 12,799 Spindle Hours: 5,303 Weight: 3,350 kg Technical Details: Travel in X-axis: 505 mm Travel in Y-axis: 355 mm Travel in Z-axis: 610 mm Feed Rate (max.): 18,000 rpm Number of slots in the tool magazine: 24 Simultaneous machining in 4th/5th axis Scope of Supply: - Renishaw probing system - Tool measurement - Floor mat - Coolant system - Tools in the lower cabinet Bwodpfx Aoy Uxa Esm Rjn - Transport securing devices as shown in the picture without any other items shown Functionality not tested You can find this and many other items from the fields of precision engineering, workshop equipment, CNC technology, CNC accessories, tool holders, and more on our RESTLOS auction platform!

Condition: used, Year of construction: 1995, turning diameter 570 mm turning length 2000 mm control num + CNC Keller centre height 280 mm turning dia. over face-slide 365 mm spindle bore 62 mm spindle turning speed range 3 - 2500 U/min spindle head DIN 55 027 Gr. 8 cutting speed Konstant 1 - 9999 m/min feed in x - axis 0,01 - 50 mm/U feed range Z-direction 0,01 - 50 mm/U rapid travel - longitudinal/face 10 / 5 m/min feed power x-Achse 7100 N feed power z-Achse 12.500 N travel of cross-slide 345 mm upper slide travel 125 mm bed width 360 mm tailstock quill diameter 80 mm tailstock quill stroke 190 mm tailstock taper MT 5 max. workpiece weight -without tailstock 400 kg max. workpiece weight between centres 1000 kg kpiece weight:each extra steadyrest 300 kg threading metric 0,1 - 400 mm/Stg. dimensions of machine L x W x H 3,98 x 1,87 x 1,81 m Bjdsyrhm Uopfx Am Rown Accessories: 3-jaw chuck RÖHM, 250 mmø; MULTIFIX-toolpost, solid steady, coolant

Condition: used, Year of construction: 2000, turning diameter 400 mm turning length 1000 mm control FAGOR control CNC 8055/B-T centre height 200 mm centre distance 1000 mm turning dia. over face-slide 210 mm Bedpfxjvh I T As Am Rown bed width 300 mm spindle bore 65 mm spindle turning speed range 0 - 3000 U/min transmission ratio 2 feeds - longitudinal 0 - 10.000 mm/min feeds - cross 0 - 10.000 mm/min rapid travel - longitudinal/face 15 m/min tailstock quill diameter 68 mm tailstock quill stroke 155 mm tailstock taper MT 4 total power requirement 8 kW dimensions 3,1 x 1,9 x 1,78 m Accessories: 3-jaw chuck 200 mmø, MULTIFIX-tool post with various inserts, coolant

Condition: used, Year of construction: 2000, turning diameter 500 mm turning length 1500 mm control MONFORTS CONTROL control SYSTEM MTC-K Bwedpfx Amjvh Ncro Rsn turning diameter over bed slide 290 mm spindle bore 70 mm spindle turning speed range 3 - 2800 U/min spindle power 15 kW max. torque on the spindle 1530 Nm spindle head DIN 55027 Gr. 8 feed power X/Z axis 11300 N rapid travel - longitudinal/face 10 / 5 m/min bed width 360 mm travel of cross-slide 265 mm upper slide travel 140 mm turning tool - shaft cross cut 32 x 25 mm tailstock quill diameter 80 mm tailstock quill stroke 160 mm tailstock taper MT 5 weight of the machine ca. 3,3 t dimensions of machine L x W x H 3,45 x 1,65 x 1,93 m Accessories: 3-jaw chuck ROTA-S plus 250 mmø, 4 pos. toolholder PARAT, coolant

Condition: ready for operation (used), Year of construction: 2003, Weiler E50 x 1000 precision lathe (2003) Manufacturer: Weiler Type: E50 x 1000 Year of manufacture: 2003 Condition: good, used, under power Operating hours: 43.000h Bwsdjy Ti Iwjpfx Am Ren Technical data see pictures. Included in delivery: - Original documentation - Rota S Plus 250-62 - Bezel - Parat 4 compartment tool turret

Condition: used, Year of construction: 2018, operating hours: 10,347 h, total height: 2,400 mm, total length: 7,000 mm, total width: 2,400 mm, Colour: Grey Empty weight: 3.450 kg - Year: 2018 - Documentation available: Yes - CE marking present: Yes - CE certificate present: Yes - Operating hours: 10347 - Number of milling spindles [pcs.]: 1 - └ Milling spindle 1: Bsdpfoxtbgpjx Am Rjwn - - Number of controlled axes [pcs.]: 5 - Type milling table: Beam table - Drilling unit present: Yes - └ Horizontal drill spindles [pcs.]: 10 - └ Vertical drilling spindles [pcs.]: 24 - Saw unit present: Yes - Tool changer positions [pcs.]: 25 - Vacuum pump present: Yes - └ Number [pcs.]: 1 - └ Brand: Becker - Working range X [mm]: 3110 - Working range Y [mm]: 1320 - Z-axis working range [mm]: 180 - Transport dimensions: 7000mm x 2400mm x 2400mm (l x w x h) - Transport weight [kg]: 3450kg - Transport packages [pcs.]: 1 Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Delivery and trade-in always possible for everything in the industrial sectors Glenn Smeets

Condition: good (used), Year of construction: 2012, 5-axis CNC machining center Manufacturer: AXA Machine model: VPC-2800U Control system: Siemens Year of manufacture: 2012 Technical data Bwsdpfx Asy Txt Njm Ren Working area - X-axis travel (mm) 3,900 - Y-axis travel (mm) 2,940 - Z-axis travel (mm) 1,100 CNC rotary table - Clamping surface (mm) ø 2,800 Feed drive - Max. rapid traverse rate in X/Y/Z (m/min) 30/30/25 Main spindle - Standard drive No. 140 Spindle speed range (rpm) 30-7500 Spindle power max. continuous duty 100% (kW) 63 Spindle torque max. continuous duty 100% (Nm) 191 Tool holder: SK50 Swiveling head - Swiveling range B-axis (degrees) 90 - Indexing: freely interpolating Tool changer - Number of tool positions: 60 Please note: The machine is NOT equipped with a rotary function. Subject to changes and errors in the technical data and specifications.

Condition: good (used), Year of construction: 2020, 5-axis CNC machining center - universal - Manufacturer: MAZAK Machine model: Variaxis J-500 Control system: Mazatrol SmoothG Year of manufacture: 2020 Bodpfxsy Txrxs Am Rewn Number of controlled axes: 5 TECHNICAL DATA Travel ranges - X-axis: (mm) 350 - Y-axis: (mm) 550 - Z-axis: (mm) 510 - Swivel range A-axis: (degrees) -120 / +30 - C-axis (rotary and swivel table): (degrees) 360 Feed rate X/Y/Z: (mm/min) 8,000 Rapid traverse rates - X-axis (mm/min) 30,000 - A-/C-axis: 10,800 degrees/min Spindle - Spindle speed max.: (rpm) 12,000 - Drive power (ED) 100 / 40: (kW) 7.5 / 11.0 Tool magazine - Tool holder: BT40/CAT40 - Pull stud: Yamazaki ANSI type - Tool positions: 30 - Tool diameter: (mm) 90 - Tool length: (mm) 300 Machine table Swivel rotary table Pallet system - Pallet changer: 2-position - Clamping table dimensions: (mm) 500 x 400 Swivel rotary table - Rotary table diameter: (mm) 500 x 400 - Max. workpiece weight: (kg) 200 EQUIPMENT FEATURES + Internal cooling system 70 bar + Chip conveyor with scraper band + Oil mist extraction + Tool length measurement and tool breakage monitoring + Additional interior lighting + Signal light (3-color) Subject to changes and errors in the technical data and specifications.

Condition: excellent (used), Year of construction: 1996, turning diameter 380 mm turning length 750 mm Bwsdpex U Encefx Am Rjn control HEIDENHAIN ManualPlus total power requirement 9 kW weight of the machine ca. 2 t dimensions of the machine ca. 2,4 x 1,7 x 1,7 m

Condition: used, Year of construction: 2004, Technical details: turning diameter over bed: 850 mm turning dia. over face-slide: 580 mm turning length: 4000 mm centre distance: 4000 mm faceplate diameter: 800 mm control: Siemens 810D revolution per minute: 1 - 1600 / 2 step U/min max. torque on the spindle: 6000 Nm feed motor: X= plan + Z= längs: 16000 / 20000 N rapid motion - x-axis: 4 m/min rapid motion - y-axis: 7 m/min spindle passage: 130 (Spindelkopf DIN 55027 Gr. 11) mm operating hours - idle run: werden noch ausgelesen h tailstock taper ISO: MK 6 tailstock quill stroke: 350 mm max. workpiece weight between centers: 5000 kg max. workpiece weight -without tailstock: 1800 kg interface: RS 232 / V24 voltage: 400 V / 50Hz V control voltage: 24 V Gleichstrom V total power requirement: ca. 52 kW Weight approx.: 14,0 t dimension machine xH: 2,6 x 9,1 x 2,5 m Bwodpeu Ix Izefx Am Ren Cycle lathe with Siemens cycle control Motor: 37kW, rated speed 1500 rpm; max. speed 6500 rpm; torque 235 Nm Two gear shift stages Stage II: Spindle torque 258.9 to 1364.6 Nm Stage I: Spindle torque 1050.4 - 5536.1 Nm Feed drive Three-phase servo drive 2x chip conveyor Double E-cabinet Quick-change steel holder parat Coolant device incl. various accessories see photo, as well as steady rest and 3-jaw chuck Ø 500mm Rota-S plus *

Condition: used, Year of construction: 2014, Technical details: turning diameter over bed: 660 mm turning dia. over face-slide: 460 mm turning length: 1650 mm centre distance: ca. 2200 mm swing over bed: 660 mm swing diameter over slide rest: 460 mm swing diameter: in Kröpfung: 960 mm centre height: 320 mm control: Siemens 828 D ShopTurn x-axis: ca. 350 (plan) mm spindle bore: Ø 105 mm range of revolution per miute: 26-224 / 225-670 / 671-2.000 stufenlos U/min feed continuous: X: 0,5 - 3.000 mm/min feed continuous: Z: 1 - 3.000 rapid traverse x + z axis: 6 m/min tailstock taper MT: MK 6 Bwjdeu Ix Nrjpfx Am Rjn quill stroke: 300 mm total power requirement: ca. 23 kW dimension machine xH: 4,2 x 2,3 x 2,3 m dimension swarf conveyor LxWxH: 2,3 x 1,7 x 1,3 m Chip conveyor includes cooling water tank with pump 3-speed manual gearbox with electronic gear shifting Tool holder according to/with Silent Tool Technology equipped (Capto C6) Manual control unit Foot switch Control panel Hydraulics automatic door closing (pneumatic) Accessories see comparable in the photo. *

Condition: used, Year of construction: 1998, Technical details: turning diameter over bed: 600 mm turning diameter over support: 400 mm turning length: 2000 mm center height over support: 300 mm centre distance: 1600 mm revolution per minute: 3 - 2.500 U/min tailstock taper MT: MK 5 spindle bore of work spindle: 62 mm quill stroke: 190 mm longitudinal feeds:: ca.0,001-10 einstellbar mm/U cross feed: ca. 0,001-5 einstellbar mm/U Rapid feed X axis: bis zu 5000 m/min. total power requirement: 40 KVA weight of the machine ca.: 5,6 t dimension machine xH: 4,0 x 2,0 x 1,9 m Bwjdpfx Asw Rkt Ism Rsn incl. accessories see picture *

Condition: used, Year of construction: 2003, Machine hours: 1,594 h Technical specifications: Swing over bed: 320 mm Swing over face: 150 mm Clamping width, approx.: 800 mm Lathe chuck: 200 mm Lathe spindle size: 6 Spindle mount: MT 6 Speed range: 14 - 3,550 rpm Cross travel: 185 mm Spindle bore: 52 mm Quill: 70 mm Quill mount: MT 5 Quill stroke: 120 mm Max. torque: 32 Nm Gear ratios: 2 Drive power: 7 kW Multifix tool carrier: size B Dimensions (L x W), approx.: 2,600 x 1,440 x 1,800 mm Weight, approx.: 1,500 kg Bsdpfx Ajwlhn Hsm Rewn Control system: SINUMERIK 810DE-L CCU0 (Cycles for taper turning and thread machining

Condition: used, CNC Universal Tool Grinding Machine SCHÜTTE Type BU 400 CNC 4 Machine - defective - without control system Machine not operational - electrically non-functional - without CNC controller Serial No.: Year of manufacture: 1990 4 axes (X, Y, Z, and R) Table clamping surface 1300 x 250 mm Distance between centers 700 mm Center height 155 mm Grinding length (X-axis) max. 400 mm Grinding width (Y-axis) max. 260 mm Grinding spindle speed max. 6000 rpm Grinding spindle drive 3 kW Power supply 380 Volt, 50 Hz, 25 Amp. - CNC control system removed Required space L x W x H 3800 x 2400 x 2300 mm Weight 3000 kg Bedpfsd Rmcmex Am Rown Machine not functional, CNC control is missing. Mechanically in good condition, ideal for control retrofit Suitable as a spare parts donor or for rebuild with new control system