Used Ball Screws Maho for sale (435)

Condition: used, Year of construction: 1988, x-travel 0600 mm y-travel 450 mm z-travel 450 mm quill stroke 80 mm table-size 1000 x 400 mm spindle turning speed range 20 - 3000 U/min spindle taper SK 40 feeds - automatic programming 1 - 4000 mm/min rapid traverse 6 m/min control Philips 432 power capacity 12 kW total power requirement 15 kW CNC control Philips 423, V-head swivelling, coolant pump, hydraulic tool clamping, autom. central lubrication, machine light, with protection cabin, diverse accessories. Dodeu Rt I Iopfx Aggjkt

Condition: used, Year of construction: 2007, Technical details: x-travel: 635 mm y-travel: 460 mm z-travel: 510 mm control: 3D Heidenhain i TNC 530 table-size: 790 x 560 mm table load capacity: 600 kg tool taper: SK 40 Revolution per minute: 20 - 10.000 U/min. tool changer with: 20 place spindle hours: 36.050 h operating hours - idle run: 91.000 h total power requirement: 13,9 kW Weight approx.: 3,6 t tool taper: SK 40 Dsdpfxow A I Uuj Aggskt Tool changer: 20-fach dimension machine approx.LxWxH: 3,0 x 2,0 x 2,15 m

Condition: used, Year of construction: 2003, Technical details: x-travel: 3600 mm y-travel: 900 mm z-travel: 820 mm b-axis: -100 - +100 ° control: Siemens 840 D tool changer with: 30 Plätze rapid traverse:: 100 m/min rapid traverse:: 60 m/min. table-size: 4200 x 900 mm table load capacity: 4200 kg total power requirement: 92 kW Weight approx.: 30 t dimension machine xH: 4,6 x 8,7 x 3,3 m The DECKEL MAHO DMF 360 Linear is a highly dynamic 5-axis travelling-column machining center designed for the complete machining of large and heavy workpieces. Thanks to the linear drive in the X-axis, the machine achieves very high rapid traverse speeds and reduced non-productive times, making it particularly suitable for toolmaking, mold making, and general mechanical engineering. Travelling-column design for high stability when machining long workpieces Linear drive in the X-axis with rapid traverse speeds up to 100 m/min 5-axis machining with NC swivelling milling head (B-axis) Large travels for machining components longer than 4 meters Djdpfxozi Nc Ro Aggskt High precision through direct measuring systems and thermally symmetrical machine design *

Condition: good (used), Year of construction: 2000, functionality: fully functional, travel distance X-axis: 2,050 mm, travel distance Y-axis: 520 mm, travel distance Z-axis: 520 mm, rotational speed (max.): 12,000 rpm, CNC control Heidenhain TNC 430 32-fold tool changer Dkjdpsu Hf Ryofx Aggot coolant device 2x chip conveyor measuring feeler The hole X-axis travel is 2050mm. You can work in one move 2 meters. A dividing wall is also with the machine. Then the X-travel will be split. Technische Daten / technical details: X-Weg / X-travel 2050 mm Y-Weg / Y-travel 520 mm Z-Weg / Z-travel 520 mm Spindelaufnahme / spindle taper SK40 Drehzahlbereich / spindle speed 12000 UpM /rpm Werkzeugwechselmagazinplätze / number of tool places in changer 2x 32 Antriebleistung Spindel / drive capacity spindle 36 kW Gewicht ca. / weight 12800 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: 1989, Available immediately from location: MAHO Toolroom Milling Machine Type MH 500 M Year of manufacture 1989 Heidenhain Digital Display Table 800 x 360 mm SK 40 Spindle speeds 63 – 4000 rpm Quill stroke 50 mm Travel X/Y/Z 500/380/350 mm Djdpfxezwud Ns Aggjkt Drive 3 kW Feed rates 10 – 1000 mm/min Coolant system Weight 1600 kg Adapters Hydraulic vise Price: €3,000 plus VAT, ex location

Condition: ready for operation (used), Year of construction: 1984, Immediately available from training center: MAHO Tool Milling Machine Model MH 600 Year of manufacture: 1984 Table: 700 x 400 mm Travel X/Y/Z: 500/400/400 mm Speeds: 40 – 2500 rpm SK 40 Spindle stroke: 80 mm Coolant system Drive: 4 kW Feeds: 8 – 400 mm/rev Head swivels 90/90 degrees Dkodpfszwud Aox Agget Weight: 1900 kg Price: EUR 2,250.-- plus VAT, ex location.

Condition: used, MAHO MH 600 P Tool Milling Machine Tool Milling Machine MAHO Type/Model MH 600 P Control Heidenhain TC 135 Condition Used Djdpfx Agszxhfvegokt Technical Data Travel (X / Y / Z): 500 mm / 400 mm / 400 mm Quill stroke: 80 mm Table dimensions: 720 mm x 140 mm Max. table load: approx. 500 kg T-slots: 8 pieces (spacing 54 mm) Tool holder: SK 40 / ISO 40 Spindle speed range: 40 to 2,000 rpm Spindle drive power: 4.0 kW Working feed rate continuously adjustable: 5 to 500 mm/min Rapid traverse speed (X / Z): approx. 1.2 m/min Rapid traverse speed (Y): approx. 0.8 m/min Connection voltage: 380 V / 50 Hz Machine weight: approx. 1,450 - 1,900 kg Space requirement (L x W x H): approx. 1.8 m x 1.5 m x 1.9 m

Condition: used, MAHO MH 600 P Tool Milling Machine Tool milling machine: MAHO Type/Model: MH 600 P Control: Heidenhain TC 135 Condition: Used Technical data Travel distances (X / Y / Z): 500 mm / 400 mm / 400 mm Quill stroke: 80 mm Table dimensions: 720 mm x 140 mm Max. table load: approx. 500 kg T-slots: 8 pieces (distance 54 mm) Tool holder: SK 40 / ISO 40 Spindle speed range: 40 to 2,000 rpm Spindle drive power: 4.0 kW Working feed rate continuously adjustable: 5 to 500 mm/min Rapid traverse speed (X / Z): approx. 1.2 m/min Rapid traverse speed (Y): approx. 0.8 m/min Connection voltage: 380 V / 50 Hz Machine weight: approx. 1,450 - 1,900 kg Space requirement (L x W x H): approx. 1.8 m x 1.5 m x 1.9 m Inquiry item: Transportation costs will be provided in a separate, customized offer. Dksdpfx Aezxgwdsggot

Condition: used, Year of construction: 2001, x-travel 1000 mm y-travel 800 mm z-travel 500 mm control Siemens 611 Dkedpfx Agoztfx Aogjt

Condition: used, Year of construction: 2012, Deckel Maho NHX 4000 Horizontal Machining Center Horizontal Machining Center, Deckel Maho Type / Model: DMG NHX 4000 Condition: Used Year of Manufacture: 2012 Program Runtime: approx. 48,200 hours Spindle Hours: approx. 39,200 hours Technical Data Travel distances X / Y / Z axis: 560 mm / 560 mm / 660 mm Rapid traverse rate (X/Y/Z): 60 m/min Work table & Pallets: 2-way pallet changer, standard (APC) Pallet size: 400 x 400 mm Max. workpiece weight: 400 kg Max. workpiece dimensions (Ø x H): Ø 630 x 900 mm Pallet changing time: approx. 8.0 seconds Dkedszxc H Uspfx Aggst B-axis (rotary table): 360° (division 0.001°, direct drive) Main spindle Max. speed: 12,000 rpm Drive power: approx. 11 kW Max. torque: approx. 110 Nm Tool interface: SK 40, tool changer STC Tool changer (ATC) Magazine slots: 60 magazine slots Max. tool diameter: 70 mm (with free adjacent slots up to 170 mm) Max. tool length: 450 mm Max. tool weight: 12 kg Electrical data Power connection: 400 V 3/N, PE 50 Hz Power consumption: 33 kVa In max.: 48 A Max. fuse rating: 80 A DC control voltage: 24 VDC AC supply voltage: 230 VAC Equipment 1: Smartline Line 36kW Equipment 2: NX15 Dimensions & Weight Machine weight: approx. 8,000 kg Footprint / Dimensions (W/D/H): approx. 2,680 x 2,540 mm Control: Siemens 840D SL Equipment Indexing table Tool measuring system, 60 tools SK40 Direct measuring system Tool breakage control MSC Coolant system IKZ 35 bar Chip conveyor Signal light Inquiry item: Transportation costs in individual offer

Condition: used, Year of construction: 2008, Deckel Maho DMC 55H duoBlock Horizontal Machining Center Horizontal Machining Center – Deckel Maho Type / Model: DMC 55 H DuoBlock Year of Construction: 2008 Condition: Used Program Run Time: approx. 66,600 hours Spindle Run Time: approx. 46,500 hours Technical Data Travel Ranges X / Y / Z Axes: 560 mm / 600 mm / 600 mm Rapid Traverse (X/Y/Z): 40 m/min Work Table & Pallet Changer (APC) Number of Pallets: 2-position pallet changer Pallet Size: 400 mm x 400 mm Max. Workpiece Weight: 500 kg Max. Workpiece Height: 850 mm B-Axis (Rotary Table): 360° (designed as an NC rotary table, usually with 0.001° resolution) Main Spindle: 12,000 1/min; HSK 63; approx. 38 kW Tool Changer (ATC) Tool Magazine: 40 magazine positions Tool Interface: HSK-A63 Max. Tool Diameter: 80 mm (up to 160 mm with free neighboring positions) Max. Tool Length: 330 mm Dkedjzxc Ewspfx Aggot Electrical Data Power Connection: 400V 3/N, PE 50Hz Power Consumption: 58 kVA Inrush Current: 84 A Max. Pre-Fuse: 100 A DC Control Voltage: 24 VDC AC Supply Voltage: 230 VAC Dimensions, Weight & Control Machine Weight: approx. 11,000 kg to 13,000 kg (depending on magazine size and chip conveyor) Footprint (L x W x H): approx. 5.0 x 3.0 x 2.8 m (pure space requirement without peripherals) Control: Siemens Sinumerik 840D Equipment NC rotary table Tool measurement system BLUM Oil mist separator IFE-2000 Hydraulic clamping system Proportional amplifier Signal light Coolant system 980 l Coolant gun Rotoclear Chip conveyor Master probe OMP60 Operating mode 4 Quotation item: Transport costs in a separate offer

Condition: ready for operation (used), Year of construction: 2000, operating hours: 32,000 h, travel distance X-axis: 1,000 mm, travel distance Y-axis: 600 mm, travel distance Z-axis: 600 mm, controller manufacturer: HEIDENHAIN, controller model: TNC 430, overall weight: 4,900 kg, spindle speed (max.): 8,000 rpm, spindle motor power: 13,000 W, number of slots in tool magazine: 24, number of axes: 3, This 3-axis DECKEL MAHO DMC 103 V was manufactured in 2000. It features a travel range of 1000 mm in the X-axis, 600 mm in the Y-axis, and 600 mm in the Z-axis. The machine includes a vertical tool changer with 24 stations and a maximum permissible load of 800 kg. If you are looking to get high-quality machining capabilities, consider the DECKEL MAHO DMC 103 V vertical machining centre we have for sale. Contact us for further details. - Rapid Traverse (X/Y/Z): 30 m/min- Max. Permissible Load: 800 kg- Tool Changer: Vertical tool changer with 24 stations- Machine Weight: approx. 4,900 kg- Main Drive: Speed-controlled asynchronous motor 9/13 kW- Electrical Specifications: 400 V, 3+PE~, 50/60 Hz, 50 A, 30 kVA, Control voltage 230 V / 24 V=- Operating Hours: approx. 32,000 operational hours (cabinet counter reads 054888 h)- Included / Additional Equipment: Chip conveyor, dividing head with counterholder (4th axis, currently disconnected)- Operational Condition: Configured for 4 axes; 4th axis power unit failed/disconnected; operated as 3-axis machine until end of 2021; out of service and available immediately Dedpfezu Nygex Aggjkt

Condition: good (used), Year of construction: 2006, A very fast, continuous 5-axis milling machine. Designed primarily for smaller, complex parts requiring extensive machining. This machine enables continuous 5-axis milling with high repeatability. It delivers tireless performance thanks to its linear motor and glass scale measuring system, which ensure strict tolerances. Including: High-pressure coolant up to 40 bar Programmable B-axis and C-axis Heidenhain 3D touch probe Tool measurement X axis 500 mm Y axis 450 mm Z axis 400 mm Spindle speed 18000 rpm Tool capacity 60 CNC Control Heidenhain TNC530i Tool changer/magazine SK40 Viewing in operation is possible upon appointment. Availability: 10/2026 Dkedpfxozvfn As Agget 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: ready for operation (used), Year of construction: 2000, spindle speed (max.): 6,300 rpm, travel distance X-axis: 350 mm, travel distance Y-axis: 240 mm, travel distance Z-axis: 340 mm, number of axes: 3, This 3-axis DECKEL MAHO DMU 35M was manufactured in 2000. It features a Siemens control unit and operates at an apparent power of 15 kVA. The machine is designed for versatility in machining applications. If you are looking to get high-quality machining capabilities, consider the DECKEL MAHO DMU 35M universal machining centre we have for sale. Contact us for further details. Dsdpjzuxycefx Aggskt - Control Unit: Siemens- Apparent Power: 15 kVA- Voltage: 400 V / 230 V / 24 V- Frequency: 50 Hz- Max Current: 25 A- Fuse Rating: 35 A

Year of construction: 2005, condition: used, X-axis: 500mm, Y-axis: 450mm, Z-axis: 400mm, swivel rotary table dimensions: 630x500mm, max. table load: 200kg, swivel range: -5 to 110°, continuously variable speed: 20-10,000/min, drive power (100%/40% duty cycle): 9kW/13kW, torque (40% duty cycle): 82Nm, input resolution: 0.01mm, positioning tolerance: 0.010mm, rapid traverse: 24m/min, feed speed: 20m/min, number of SK40 tool positions (DIN 69871): 30, tool diameter (speed-dependent): D80-D130, max. tool length: 290mm, max. tool weight: 6kg, connected load: 17kW, control: Siemens 840D Powerline ShopMill, length: 4860mm, width: 4350mm, height: 2424mm, transport dimensions: 2210x2120x2150mm, weight: 4.05t, operating hours power-on time: 35,880h, spindle hours: 9609h. Equipment: digital drive and hydraulic clamping (positioning operation only), electronic angle display and plane transformation, chain magazine with double gripper, additional cabin door on the right, 80l coolant system, coolant/compressed-air switching, flushing gun, oil pan drawing, MDE interface (machine on, machine running, piece counter), documentation in German, 3D machine model for kinematic simulation in the CAM programming system (IGES, STEP format), numerous SK40 tool holders (DIN 69871), Heidenhain TS641 infrared touch probe, electronic handwheel, additional V24 RS232 interface on the control cabinet. An on-site inspection is possible. Dkjdpfxezxr Rcj Aggst

Condition: good (used), Year of construction: 2011, operating hours: 19,000 h, functionality: fully functional, travel distance X-axis: 880 mm, travel distance Y-axis: 630 mm, travel distance Z-axis: 635 mm, spindle speed (max.): 12,000 rpm, operating hours of spindle: 19,000 h, spindle nose: HSK 63, number of slots in tool magazine: 32, Equipment: chip conveyor, documentation/manual, The machine will be available starting October 2026! Dsdpfxezx Ur Nj Aggskt

Condition: good (used), Year of construction: 1998, Deckel Maho DMU 103V Year of manufacture: 1998 Control system: - Siemens 810D (Shopmill) Main spindle: - max. 8000 rpm Travel ranges: - X-1000, Y-600, Z-600 mm Dkjdjzwg E Espfx Aggot Work table: - Clamping area 1200 x 600 - max. table load 800 kg Tool changer: - 24 magazine positions Availability: - Immediate

Condition: excellent (used), Year of construction: 2006, • Configuration: 3 linear axes (X/Y/Z) + B-axis tilting head • Travels (X/Y/Z): 2,500 / 920 / 820 mm • Table: 3.100 × 900 mm · max load 3.000 kg • Spindle: 20–18.000 rpm · HSK-A63 · 35/25 kW • Rapids: X 100 m/min · Y/Z 60 m/min • Tool magazine: 120 tools • Control: HEIDENHAIN iTNC 530 Dkedpfjy Skmrjx Aggst Brand new Spindle installed as end of April 2026

Condition: used, Technical details: x-travel: 700 mm y-travel: 450 mm z-travel: 450 mm control: Heidenhain TNC 121 spindle taper ISO: SK 40 quill stroke vertical: 120 mm spindle head swivable left - right: je 90° ° turning speed range: 40 - 1.600 U/min throat of the milling spindle: 200 mm table surface area: 1.050 x 627 mm table swivable approx.: +45/ -45 Grad Dedpfx Aezibabjggokt table rotating: 360 Grad table movement - horizontal: 200 mm table feed: X/Z 5 - 5.000 mm/min table feed: Y 2,5 - 250 mm/min total power requirement: 8 kW weight approx.: 3,2 kg dimension machine approx.LxWxH: 2,3 x 2,0 x 1,850 m The MAHO MH 800 is a high-quality conventional universal tool milling machine designed for precise milling, drilling, and machining operations. It is ideally suited for toolmaking, mechanical engineering, fixture construction, as well as the production of individual components and small production batches. With Heidenhain 3-axis digital readout (DRO) Universal swivelling table Vertical milling head *

Condition: used, Year of construction: 2003, x-travel 780 mm y-travel 560 mm z-travel 560 mm tool taper SK40 control HEIDENHAIN iTNC 530 weight of the machine ca. ca.12,5 t required space 3,40 x 3,30 x 2,60 m DECKEL MAHO DMC 60T BJ 2003 Operating hours: 32532.7 The machine DMC 60T (1659) is in very good condition and is ideally suited for precise milling operations thanks to powerful motor spindles, high feed rates, and a flexible tool magazine. All technical details can be found below. Working range Travel distance/ X-axis: 780mm Y-axis: 560mm Z-axis: 560mm Worktables NC rotary table – clamping surface, pallet: diameter 500 x 630 mm Centering bore: diameter 50^H6 20 deep mm Locating bore: diameter 20^H6 20 deep mm Torque of the table at: – 100% duty cycle: 1603Nm – 25% duty cycle: 2813Nm Max. rotation of the table: 30 rpm Feed: 7200 ./min. Permissible table load: 400 kg Tool magazine with magazine SK 40 Dkedpfxowm Rrwj Agget Feed drive AC servo motors in digital technology for axis X, Y, Z Feed speed X-, Y-, Z-axis infinitely programmable: 20–15000 mm/min. Rapid traverse X-, Y-, Z-axis: 50 mm/min. Setup operation X-, Y-, Z-axis: 20–2000 mm/min Measuring system Resolution | X-, Y-, Z-axis: 0.001mm Input unit | X-, Y-, Z-axis: 0.001mm Position tolerance | X-, Y-, Z-axis: 0.010mm Working area Travel/ X-axis: 780mm Y-axis: 560mm Z-axis: 560mm Spindle main speed: 18000min^-1 Speed Infinitely programmable: 20–24000 min^-1 In setup mode: 20–800 min^-1 Main drive 24000 min^-1: motor spindle without gearbox Speed Infinitely programmable: 20–24000 min^-1 In setup mode: 20–800 min^-1 Weight Machine with tool changer and transport base: approx. 10100kg Installation weight Machine with fixed table and tool changer: max. 11500kg Dimensions Machine: 3.40 x 3.30 x 2.60 m Chip conveyor: 2.77 x 1.00 x 2.07 m Band filter system 900l: 2.22 x 1.40 x 2.20 m

Condition: ready for operation (used), Year of construction: 2003, operating hours: 6,276 h, travel distance X-axis: 630 mm, travel distance Y-axis: 500 mm, travel distance Z-axis: 500 mm, controller manufacturer: SIEMENS, controller model: 840D, spindle speed (max.): 10,000 rpm, number of slots in tool magazine: 24, number of axes: 3, This 3-axis DMG DECKEL MAHO DMC 63 V was manufactured in 2003. It features an X-axis travel of 630 mm, Y-axis travel of 500 mm, and Z-axis travel of 500 mm. The machine is equipped with a Siemens 840D control unit and has a spindle speed of 10,000 rpm. If you are looking to get high-quality machining capabilities, consider the DMG DECKEL MAHO DMC 63 V vertical machining centre we have for sale. Contact us for further details. - Total Power On: 24,787 h- Spindle / Cutting Time: 6,276 h- Apparent Power: 30 kVA- Max Current (Jn max): 50 A- Rated Current: 45 A- Voltage: 400 V / 230 V / 24 V- Frequency: 50/60 Hz Dkjdezt N Saepfx Aggot Technical Specification Taper Size SK 40

Condition: like new (used), Year of construction: 2022, functionality: fully functional, Universal milling machine DMG FP4M Special Edition With 3-axis digital display ND7013 by Heidenhain, in new condition, Made in Germany, CE compliant!!! Technical data: >> Year of construction 2022 >> Fixed angular table, clamping area 480x800 mm >> Spindle drive, speed range 25-3000 rpm, stepless adjustment with input on the control panel >> Controlled main drive 6 kW >> Vertical milling head, swiveling +- 90 degrees (180 degrees) >> Linear axes, feed range 6-500 mm/min >> Rapid traverse 1500 mm/min >> Space requirement (W+D) approx. 2.2 x 1.9 meters >> Weight approx. 1600 kg Accessories and equipment: >> Heidenhain digital display ND 7013 >> Coolant system Dedpozung Eofx Aggekt >> Minimum quantity lubrication >> Central lubrication >> Machine feet >> Operating manual, etc. About the machine: Offered is a universal milling machine DMG FP4M Special Edition with a 3-axis digital display by Heidenhain ND 7013, in new condition. A reliable and user-friendly machine, Made in Germany. An oil change has been performed. Mechanically and electrically inspected. Take the opportunity to inspect and test the Deckel machine on-site while it is powered on.

Condition: used, Year of construction: 1986, Deckel Maho 800E, manufactured in 1986: - Table surface area: 600 x 1100 mm Dsdpfxsza Am Ej Aggekt - Travel in x-axis: 800 mm - Travel in y-axis: 450 mm - Travel in z-axis: 500 mm - Footprint: 3000 x 2500 x 2030 mm - Weight: approx. 4000 kg

Condition: used, Year of construction: 2010, functionality: fully functional, travel distance X-axis: 730 mm, travel distance Y-axis: 560 mm, travel distance Z-axis: 560 mm, controller manufacturer: Heidenhain, controller model: iTNC 530, table load: 500 kg, spindle speed (max.): 12,000 rpm, Equipment: chip conveyor, Tool changer with 60 positions Spindle speed 12,000 rpm Heidenhain iTNC 530 control unit Djdjzva Uwjpfx Aggekt Internal coolant supply (ICS) Chip conveyor 3D quickset

Condition: good (used), Year of construction: 1999, operating hours: 76,863 h, functionality: fully functional, controller manufacturer: Heidenhain, controller model: TNC 426, Equipment: chip conveyor, Title: 5-Axis Machining Center Deckel Maho DMC 125U L55, Year of Manufacture 1999, with Pallet Changer (5 Positions) Condition: good, technically and visually well-maintained, currently still in full productive use Year of Manufacture: 1999 Location: West Saxony Price: Negotiable Technical Data: Manufacturer: Deckel Maho GmbH, Pfronten Type: DMC 125U L55 Machine No.: 1110 000113 Control: Heidenhain TNC 426 5-Axis version with rotary table (B and C axes) Pallet changer with 5 pallet positions Integrated chip conveyor system Separate coolant/hydraulic unit Operating Hours: approx. 76,863 h Spindle Hours: 4,200 h Description: For sale is a 5-axis universal machining center Deckel Maho DMC 125U L55, year of manufacture 1999, with Heidenhain TNC 426 control. The machine features a rotary table with B and C axes for complete 5-axis machining of large workpieces, as well as a pallet changer with 5 positions for efficient, automated workpiece changes. A hall crane is also available at the location, which can be used for transporting and handling the workpieces if required. Condition is good, both technically and visually, with approximately 76,863 operating hours. The machine is currently still in full productive use and can be made available on short notice. Inspection and test run at the location in West Saxony can be arranged. Special Note: If there is sufficient interest, it is also possible to take over the entire production hall, including other machining centers, as a complete package. If you are interested in a complete takeover, please feel free to contact us. Price: Negotiable Dksdpfxjzxzgao Aggst