Beli Deckel Maho Dmc 635 V bekas (342)

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2001, Segera tersedia di lokasi: Pusat pemesinan 5 sumbu Deckel Maho Tipe: DMU 50 M Tahun pembuatan: 2001 Kontrol: Heidenhain TNC 124 5 sumbu (3 plus 2) Sumbu putar manual dengan meja putar B dan C Sumbu B dan C ditampilkan di kontrol Meja: 700 x 500 mm Perjalanan sumbu X/Y/Z: 500/400/400 mm Kapasitas meja: 200 kg Spindel SK 40 Kecepatan spindel: 20 – 4500 rpm Daya penggerak: 9 / 13 kW Rentang putar C: 360 derajat Rentang ayun: plus 95 / minus 10 derajat Kecepatan feed hingga 5.000 mm/menit Berat: 3 ton Nodpjy E Ncxefx Alkjla Perangkat pendingin cair Harga EUR 8.500,– belum termasuk PPN, tersedia di lokasi

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2003, Segera tersedia dari lokasi: Pusat pemesinan 5 sumbu (3 plus 2) Deckel Maho Tipe DMU 35 M Tahun pembuatan 2003 Kontrol Siemens 810 D Handwheel elektronik Meja universal – meja putar/miring 400 x 290 mm Perjalanan sumbu X/Y/Z 350/240/340 mm Konektor SK 40 Kecepatan spindle 20 – 6300 rpm Kapasitas daya 6,3/10 kW Nledpey E Ncfsfx Alksa Daya beban meja 100 kg Kisaran putar 360 derajat Kisaran ayun +105/-15 derajat Jarak spindle ke meja 145/485 mm Feed rate hingga 3000 mm/menit Berat 1750 kg Harga: EUR 4.500,— ditambah PPN dari lokasi

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2000, Segera tersedia dari Swiss Toolmaking: Mesin Milling 5-sumbu Deckel Maho Tipe: DMU 35 M Tahun pembuatan: 2000 Kontrol CNC: Heidenhain TNC 310 M Handwheel elektronik Meja: 400 x 280 mm Kapasitas meja hingga 100 kg Perjalanan sumbu X/Y/Z: 350/240/340 mm Kecepatan spindle variable: 0–5000 rpm Konektor SK 40 Pergerakan cepat: 5 m/menit Servo motor untuk sumbu X/Y/Z Nljdpfx Aljy E I Tvskja Rentang rotasi: 360 derajat Penguncian meja: +105 / -150 derajat Berat: 2 ton Collet, ragum hidrolik Harga: EUR 5.000,— belum termasuk PPN, ex lokasi

Kondisi: baik (bekas), Tahun pembuatan: 1987, Travel distances X/Y/Z 400/250/375 mm, 18 speeds 80 - 4000 rpm, motor 2.2 kW, spindle taper SK 40, control unit MAHO CNC 232, table size 700x270 mm, hydraulic tool clamping, coolant system, splash guard, 20 tool holders, tool presetting device, machine vice GOODJ 125 N, clamping kit, leveling feet, various milling cutters, operating manual Nedpfxjlu Hpgs Alkola

Kondisi: sangat baik (bekas), Tahun pembuatan: 1999, Yang Eagle SMV 1000 Tahun pembuatan: 1999 Kontrol: - Fanuc OM - Handwheel elektronik Spindle utama: - maks. 6000 rpm Penukar alat: - 20 tempat magazin Perjalanan sumbu: - X- 1020, Y-510, Z-510 mm Meja: - Permukaan penjepit 1070 x 500 mm - Conveyor chip Ketersediaan: Nljdpfeyz R Ubex Alkoa - Segera atau sesuai kesepakatan

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2005, jarak pergerakan sumbu X: 630 mm, jarak lintasan sumbu Y: 560 mm, jarak gerak sumbu Z: 560 mm, tinggi total: 2.500 mm, beban meja: 400 kg, kecepatan spindel (maks.): 18.000 rpm, jumlah sumbu: 4, en Nljdpfx Alsx D I Ibokea

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2005, jam operasional: 18.700 h, produsen pengendali: SIEMENS, model controller: Sinumerik, beban meja: 3.100 kg, berat keseluruhan: 24.500 kg, kecepatan spindel (maks.): 12.000 rpm, daya motor spindle: 35.000 W, berat alat: 6.000 g, jumlah sumbu: 3, This 3-axis DECKEL MAHO DMF 250 linear was manufactured in 2005. It is a robust vertical machining center with a high-speed main drive of up to 40 kW and rapid traverses of 100 m/min in the X-axis and 60 m/min in the Y- and Z-axes. The worktable measures 3,100 × 900 mm and offers a load capacity of 3,100 kg. If you are looking for a high-quality milling machine, you should consider the DECKEL MAHO DMF 250 Linear machine that we have available for sale. Please contact us for further information. Additional Equipment • Safety features: Monitored and interlocked working area door; key switch for normal and setup operation; limited functions when the door is open Nedpfx Alox Nr Tujkjla Machine Advantages Technical Advantages of the Machine • Feed rate: up to 20,000 mm/min • Clamping area: 3,100 × 900 mm • T-slots: 9 pieces, 100 mm spacing • Tool magazine capacity: 30 positions • Measuring system resolution: 0.001 mm • Electrical connections: Mains connection 3N/PE~400/230 V, 50/60 Hz; Power consumption 82 kVA • Pneumatics: Compressed air 5.5–8 bar; Air volume 25 m³/h (without cooling), +20 m³/h with cooling • Weight (kg): with options: up to 29,280 kg Additional Information Ambient temperature: +15°C to +35°C Humidity: 20–75% Tool magazine size 120 - magazine cabinet - Tool change is carried out via a shuttle - Toolholders only available on request and subject to availability (extra) - Machine is a 3-axis machine (rotary table not available) Another configuration or the AB is no longer available. Z-axis brake defective, roll-up door in machine compartment defective, monitor cable defective, display defective (intermittent contact)

Kondisi: bekas, OFFER We can offer you, subject to prior sale and errors, from stock, without obligation: DECKEL MAHO CNC Universal Milling Machine Model: DMU 50 M Year of manufacture: 1998 ----- Working range: Longitudinal travel X-axis 500 mm Vertical travel Z-axis 400 mm Cross travel Y-axis 400 mm C-axis – Table rotation, manual 360° B-axis – Table tilt, manual ° Table dimensions Ø 700 x 500 mm Swivel range of table ° Table rotatability 360° Maximum workpiece weight 200 kg Installation height between table and spindle approx. 550 mm Reach between machine base and spindle min./max. 2 – 6 mm Tool holder SK 40 Spindle speeds infinitely programmable 20 – 4,500 rpm Feed rates / rapid traverse max. 5,000 mm/min AC main drive 0%/40% duty cycle approx. 9 / 13 kW Total power approx. 15 kW - 400 V - 50 Hz Weight approx. 3,000 kg Accessories / Special equipment: Nlodpsv Td Eljfx Alkea • 3-axis path control HEIDENHAIN TNC 124 with display and direct input of all data, with electronic handwheels for all three axes. • All three axes integrated into the milling head, so even "irregular" workpieces can be machined on the fixed table. • Rotary table manually rotatable 360°, manually tiltable +/-° (each with clamping). Digital readout of tilt angles integrated into the control unit. • Basic coolant system, attached control cabinet (SIEMENS components). • Pneumatic tool clamping, various tool holders, operating manuals, CE certificate, etc. Condition: Good to very good condition! Ideal for training purposes or single-part production! Please click here for a video of the machine: Delivery: from stock, immediately available, FCA Metzingen Payment: strictly net – upon receipt of invoice Always a large selection of milling machines in stock – please inquire about your requirements!

Kondisi: bekas, Tahun pembuatan: 2011, trans-001 Njdpfsyz Dcfsx Alkela

Kondisi: baik (bekas), Tahun pembuatan: 2002, jarak pergerakan sumbu X: 1.800 mm, jarak lintasan sumbu Y: 2.000 mm, jarak gerak sumbu Z: 1.100 mm, gerak cepat sumbu X: 60 m/menit, pergeseran cepat sumbu Y: 40 m/menit, pergerakan cepat sumbu Z: 40 m/menit, diameter meja putar: 1.700 mm, kecepatan rotasi (maks.): 10.000 rpm, pasokan pendingin: 40 batang, Perlengkapan: dokumentasi / manual, kecepatan rotasi dapat diubah tanpa batas, konveyor serpihan, Pusat Pemesinan Universal Tipe mesin: DMG DMU 200 P Kontrol: Heidenhain TNC 430 M Tahun pembuatan: 2002 DATA TEKNIS: Perjalanan sumbu: Sumbu X: 1.800 mm Sumbu Y: 2.000 mm Sumbu Z: 1.100 mm Sumbu B: 0,001° Sumbu C: 0,001° Jumlah sumbu yang dikendalikan: 5 Rentang putaran: 10.000 rpm Daya penggerak: 44 kW Taper alat: SK 50 Changer alat Slot alat: 60 Meja putar NC Ukuran meja: 1.700 x 1.400 mm Beban maksimum meja: 5.000 kg Fitur perlengkapan: Konveyor serbuk Pendingin internal (IKZ): 40 bar Nledpexuqn Sjfx Alksa Filter pita kertas Probe pengukur Handwheel elektronik

Kondisi: baik (bekas), Tahun pembuatan: 2001, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 600 mm, jarak lintasan sumbu Y: 560 mm, jarak gerak sumbu Z: 520 mm, DMG DMU 60 T – 5-axis CNC Machining Centre, Heidenhain TNC 430, Year 2001 We offer for sale a universal 5-axis machining centre DMG DMU 60 T, suitable for prototype and small-batch production, toolmaking shops, and precise machining of complex parts. The machine is equipped with a rotary and swivelling table and the Heidenhain TNC 430 control system, which remains highly sought after for its simplicity and reliability. Technical data: Travel: X 600 mm / Y 560 mm / Z 520 mm Rotary and tilting table (5 axes) Table diameter: approx. 630 mm Table load: approx. 350 kg Spindle taper: SK40 Spindle speed: up to 12,000 rpm Control system: Heidenhain TNC 430 Tool magazine Equipment: 5-axis machining (rotary + tilting table) CNC Heidenhain control Tool magazine Full machine enclosure Condition: The machine is in good optical and technical condition corresponding to its age. Test under power possible by prior arrangement. This machine is suitable for companies looking for affordable 5-axis machining with universal application. Nedpfxjy A N U Ne Alksla Further information available upon request. Machine dimensions: Length: 2.9m – Width: 2.2m – Height 2.9m, Weight 6,500 kg

Kondisi: sangat baik (bekas), Tahun pembuatan: 2004, Gelegenheit zum Kauf dieses 5-Achs-Bearbeitungszentrums mit automatischer Beladungszelle. Inklusive: - Satz Werkzeughalter - Hochdruckkühlung durch die Spindel - Späneförderer - Papierbandfilter - Ölnebelabsaugung - Programmierbarer Kühlmitteldüse - Heidenhain Messtaster TS 641 - Werkzeugbruchüberwachung BMO automatische Beladungszelle mit Yaskawa Motoman Roboter MH50 (Inbetriebnahme 2014) Inklusive: - 40 Paletten 300 x 300 mm - 40 Gressel-Spannsysteme - 4-fach Nullpunktspannmodul Schunk - Yaskawa DX100 Steuerung Verfahrwege: X-Achse: 500 mm Y-Achse: 420 mm Z-Achse: 380 mm Steuerung: Heidenhain TNC 530 Max. Spindeldrehzahl: 18.000 U/min Leistung: 35 kW Werkzeugmagazin: 60 Werkzeuge Werkzeugaufnahme: SK40 Nljdoyr N Rhjpfx Alkoa Diese Maschinenkombination kann nach Terminvereinbarung im Betrieb besichtigt werden. Verfügbarkeit: April–Mai 2026 Weitere Informationen auf Anfrage erhältlich. Bitte beachten Sie: Die Angaben auf dieser Seite wurden nach bestem Wissen und Gewissen gemacht. Sie erfolgen in gutem Glauben, für ihre Richtigkeit wird jedoch keine Gewähr übernommen. Diese Angaben sind daher unverbindlich und stellen keine zugesicherte Eigenschaft dar. Wir empfehlen, alle wesentlichen Details bei einer Besichtigung der Maschine zu prüfen. Um unnötige Reisekosten für unsere Kunden zu vermeiden, empfehlen wir in den meisten Fällen eine Live-Video-Besichtigung zu organisieren.

Kondisi: bekas, Tahun pembuatan: 1994, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 600 mm, jarak lintasan sumbu Y: 450 mm, jarak gerak sumbu Z: 450 mm, gores kuas bulu: 80 mm, gerak cepat sumbu X: 6 m/menit, pergeseran cepat sumbu Y: 6 m/menit, pergerakan cepat sumbu Z: 6 m/menit, berat benda kerja (maks.): 6 kg, Konektor alat: 40 Slot majalah: 20 Berat mesin: 3.200 kg Dimensi: Panjang: 2.740 mm Lebar: 2.660 mm Tinggi: 2.140 mm Catatan: Kami menawarkan solusi pembiayaan fleksibel untuk semua mesin serta layanan relokasi profesional. Pembongkaran, transportasi dan pemasangan profesional – semua dari satu sumber. Penagihan berdasarkan kondisi dan jangka waktu individu. Hubungi kami untuk penawaran pribadi Anda. Nsdpfx Alsymc T Eokela

Tahun pembuatan: 2001, jam operasional: 26.266 h, Kondisi: bekas, Empty weight: 7,000 kg Dimensions (L x W x H): 350 x 220 x 240 cm Price: On request Metal Milling Machine Model: CNC Manufacturer: DMG / Deckel MAHO Type: DMU60T Year of manufacture: 2001 Control: Heidenhain Operating hours: 26,266 Working area: 630 x 560 x 560 mm Spindle speed: 10,000 rpm Table size: 1000 x 600 mm Spindle taper: ISO40 Max. workpiece weight: 400 kg Including: Interlit SK200-760 filter system Including: Tool holder Including: Documentation Including: Function video available Machine weight: 6,700 kg Machine dimensions: 3,500 x 2,400 x 2,200 mm - Year of manufacture: 2001 - Documentation available: Yes - CE marking available: Yes - CE certificate available: No Nsdpfx Alsywt Nyekela - Operating hours: 26,266 - Control: CNC - Controller brand: Heidenhain - Number of axes: 3 - X-axis travel [mm]: 630 - Y-axis travel [mm]: 560 - Z-axis travel [mm]: 560 - Table length [mm]: 1,000 - Table width [mm]: 600 - Tool holder: SK40 - Max. spindle speed [rpm]: 10,000 - Options: External cooling, Tool magazine - Transport dimensions: 3,500 mm x 2,200 mm x 2,400 mm (L x W x H) - Shipping weight [kg]: 7,000 kg - Number of transport packages: 1 Financial Information VAT: The quoted price is exclusive of VAT VAT/differential taxation: VAT deductible for commercial customers Delivery and trade-in possible at any time for all items in the industrial sector Lukas van Rossum

Tahun pembuatan: 1997, Kondisi: bekas, de-hu-1 Nsdjwh Shvspfx Alkjla

Kondisi: bekas, tinggi total: 2.000 mm, lebar total: 2.300 mm, panjang total: 3.000 mm, 0 Nlodpswnif Ssfx Alkja

Kondisi: bekas, Tahun pembuatan: 2002, jam operasional: 22.552 h, Fungsionalitas: berfungsi sepenuhnya, nomor mesin/kendaraan: 11140002063, jarak pergerakan sumbu X: 1.080 mm, jarak lintasan sumbu Y: 710 mm, jarak gerak sumbu Z: 710 mm, produsen pengendali: Heidenhain, model controller: TNC 430, beban meja: 550 kg, kecepatan spindel (maks.): 12.000 rpm, daya motor spindle: 15.000 W, jumlah slot dalam magazin alat: 32, Perlengkapan: dokumentasi / manual, kecepatan rotasi dapat diubah tanpa batas, konveyor serpihan, Mesin frais 5-sumbu, SK 40. Penguat penggerak dan hard disk "baru" Januari 2025, ball screw "baru" 2024. Nljdpfey Ahxtex Alkja

Kondisi: bekas, Tahun pembuatan: 2004, jam operasional: 47.288 h, Fungsionalitas: berfungsi sepenuhnya, nomor mesin/kendaraan: 11120011383, jarak pergerakan sumbu X: 630 mm, jarak lintasan sumbu Y: 560 mm, jarak gerak sumbu Z: 560 mm, produsen pengendali: Heidenhain, model controller: iTNC530, lebar meja: 600 mm, panjang meja: 1.000 mm, beban meja: 350 kg, kecepatan spindel (maks.): 12.000 rpm, jam operasional spindle: 15.344 h, pasokan pendingin: 17 batang, daya motor spindle: 15.000 W, jumlah slot dalam magazin alat: 24, Perlengkapan: dokumentasi / manual, kecepatan rotasi dapat diubah tanpa batas, konveyor serpihan, Mesin frais 5-sumbu dengan paket produksi: pendinginan internal (IKZ) 17 bar, pendinginan aktif spindle motor Nlsdsy Ahw Njpfx Alkea

Kondisi: baik (bekas), Tahun pembuatan: 2009, Mesin akan datang dengan robot. 42.000 rpm Nledjxfu S Nepfx Alkja

Kondisi: sangat baik (bekas), Tahun pembuatan: 2013, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 450 mm, jarak lintasan sumbu Y: 600 mm, jarak gerak sumbu Z: 400 mm, jumlah slot dalam magazin alat: 120, tinggi total: 2.900 mm, panjang meja: 400 mm, lebar meja: 400 mm, pasokan pendingin: 40 batang, kecepatan pemakanan sumbu X: 80 m/menit, laju pemakanan gandar Y: 80 m/menit, laju pemakanan sumbu Z: 80 m/menit, pergerakan cepat sumbu Z: 80 m/menit, gerak cepat sumbu X: 80 m/menit, pergeseran cepat sumbu Y: 80 m/menit, kecepatan spindel (maks.): 28.000 rpm, kecepatan spindel (min.): 20 rpm, beban meja: 200 kg, jam operasional spindle: 39.945 h, Perlengkapan: dokumentasi / manual, kecepatan rotasi dapat diubah tanpa batas, konveyor serpihan, Scope of delivery: - HSC 55 machine - 3R-WorkMaster II pallet changer (automation) with all pallets - High-pressure unit / belt filter system (DMG) Nsdpfx Alju Ivkgokjla - Cooling unit (OLAER) - Chip conveyor Not included in scope of delivery: - Vises - Tool holders Technical data of the machine: - See attached AB Technical data for automation: - Available upon request.

Kondisi: baik (bekas), Tahun pembuatan: 2004, Teile, die mit der Hand gezeigt werden, sind nicht im Lieferumfang enthalten. Njdpsylykxsfx Alkjla

Kondisi: baik (bekas), Tahun pembuatan: 2004, Mesin dalam kondisi kerja yang baik. Unit kontrol: Heidenhain TNC 530. Nljdpfxoyufn Is Alkoa Suku cadang yang ditunjukkan dengan tangan tidak termasuk dalam penawaran.

Kondisi: siap digunakan (bekas), Tahun pembuatan: 1998, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 1.250 mm, jarak lintasan sumbu Y: 880 mm, jarak gerak sumbu Z: 800 mm, model controller: TNC 426 Heidenhain, kecepatan spindel (maks.): 12.000 rpm, TECHNICAL DETAILS Travel X-axis travel: 1,250 mm Y-axis travel: 880 mm Z-axis travel: 800 mm Main Spindle Maximum speed: 12,000 rpm Drive power: 15 / 10 kW Maximum torque: 500 Nm Tool holder: SK 40 Work Table Clamping surface: 1,500 x 1,050 mm Maximum table load: 2,500 kg Number of T-slots: 10 T-slot width: 18 H7 mm T-slot spacing: 100 mm Tool Changer Number of tool stations: 30 Maximum tool diameter: 80 mm Maximum tool diameter with free adjacent station: 160 mm Maximum tool length: 315 mm Maximum tool weight: 8 kg Total maximum tool weight: 100 kg Feeds Rapid traverse (X / Y / Z axis): 15 m/min Feed rate: 10,000 mm/min MACHINE DETAILS CNC control model: TNC 430 Heidenhain Nlodpfx Alsyxmmnsksa Total power requirement: 29 kW Dimensions & Weight Space requirements: approx. 7.0 x 5.0 x 3.3 m Machine weight: approx. 16.0 t Transport dimensions: 4.00 x 3.08 m EQUIPMENT Documentation Chip conveyor Coolant system High-pressure coolant Measuring probe (manufacturer: Heidenhain) Internal coolant supply Note: The transport rigging must be organized by the buyer!

Kondisi: siap digunakan (bekas), Tahun pembuatan: 1999, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 1.250 mm, jarak lintasan sumbu Y: 880 mm, jarak gerak sumbu Z: 800 mm, model controller: TNC 430 Heidenhain, kecepatan spindel (maks.): 12.000 rpm, TECHNICAL DETAILS Travel X-axis: 1,250 mm Travel Y-axis: 880 mm Travel Z-axis: 800 mm Main spindle Max. speed range: 12,000 rpm Drive power: 15 / 10 kW Max. torque: 500 Nm Tool holder: SK 40 Worktable Clamping surface: 1,500 x 1,050 mm Max. table load: 2,500 kg Number of T-slots: 10 T-slot width: 18 H7 mm Nlodpfx Ajyxmd Tjlkoa T-slot pitch: 100 mm Tool changer Number of tool stations: 60 Max. tool diameter: 80 mm Max. tool diameter with adjacent pockets empty: 160 mm Max. tool length: 315 mm Max. tool weight: 8 kg Max. total tool weight: 100 kg Feeds Rapid traverse (X / Y / Z axis): 15 m/min Feed rate: 10,000 mm/min MACHINE DETAILS Control model: TNC 430 Heidenhain Total connected load: 29 kW Dimensions & Weight Space requirements: approx. 7.0 x 5.0 x 3.3 m Machine weight: approx. 16.0 t EQUIPMENT Documentation Chip conveyor Coolant system Tool changer Note: The transport rigging must be organized by the buyer!

Kondisi: sangat baik (bekas), Tahun pembuatan: 2002, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 500 mm, jarak lintasan sumbu Y: 400 mm, jarak gerak sumbu Z: 400 mm, kecepatan pemakanan sumbu X: 5 m/menit, laju pemakanan gandar Y: 5 m/menit, laju pemakanan sumbu Z: 5 m/menit, kecepatan spindel (maks.): 4.500 rpm, Perlengkapan: kecepatan rotasi dapat diubah tanpa batas, Dear Sir or Madam, For sale is a 3+2 axis CNC machining center of the type Deckel Maho DMU50M. The Heidenhain TNC310 CNC control unit (also available with Siemens 810D!) makes the DMU a fully capable CNC machine for both production and training applications. Due to the lack of an automatic tool changer and the advantageously positioned service doors, the DMU50M requires very little space and can be placed almost directly against a wall. The machine has been thoroughly inspected in our workshop and is therefore in excellent condition and immediately ready for operation. We look forward to your inquiry! Delivery time: immediately available Machine no.: xxxx Year of manufacture: 2002 Control: Heidenhain TNC310 or Siemens 810D (incl. Shopmill) Table type: rotary and swivel table Spindle speed: 20-4500 rpm, stepless and programmable Feed rate: 0-5000 mm/min, stepless and programmable Travel X/Y/Z: 500/400/400 mm Tool holder: SK40 Tool clamping: pneumatic Nljdpfjv Sy Sfex Alkea Handwheels: 3 axes electronic / B+C axes mechanical Weight: approx. 2800 kg Further equipment and accessories: on request Our service promise to you: - We are a certified master workshop specializing in mechanical engineering - All machines are thoroughly inspected - All lubricants and any worn parts are replaced in advance - If desired, we can completely or partially overhaul your selected machine - You are free to choose the color of your selected machine - Additional accessories such as tools can be ordered directly upon request - Upon request, we can install further accessories such as safety devices, etc. - We would be happy to take care of shipping and/or installation