Beli Friedrich Deckel Fp4A bekas (931)

Kondisi: sangat baik (bekas), panjang pemakanan sumbu X: 400 mm, panjang umpan sumbu Y: 200 mm, panjang umpan sumbu Z: 400 mm, For sale is a conventional milling machine from Deckel, model FP2. The machine is in excellent condition, overhauled by Harich (exact date unknown), and is immediately ready for operation. Technical data: Tool holder: SK 40 Travel X/Y/Z: 400 / 200 / 400 mm Spindle speed range: 40 - 2,000 rpm Vertical spindle stroke: 60 mm Horizontal spindle stroke: 100 mm Feed rates: 8 - 400 mm/rev Table size: 700 x 330 mm Motor power: 2.2 kW Connection: 400 V / 16 A plug Weight: approx. 1,300 kg The vice and tools are NOT included in the offer but can be provided upon request. Transport and loading can be organized throughout Europe for an additional charge, if desired. All prices are subject to VAT. Inspection is possible by appointment. Please contact us—our team is happy to assist you. Trade-in or exchange possible! Machinery trading PURCHASE / SALE OF PRODUCTION & METALWORKING MACHINES AND MORE. Are you looking for a high-quality but affordable metalworking machine for your production? Or are you looking to sell your equipment? Hedpfou Ti Akjx Ahpefl For further information or contact options, please visit our website.

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2005, jam operasional: 42.768 h, produsen pengendali: HEIDENHAIN, kecepatan spindel (maks.): 18.000 rpm, jumlah sumbu: 5, en Hfodpfx Ahox Rd Hpspel

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2002, Unit Kontrol Merek: HEIDENHAIN Model: tidak ada Gerakan Gerakan Sumbu X: 500 mm Gerakan Sumbu Y: 400 mm Gerakan Sumbu Z: 400 mm Hsdpfx Ahox D Dukjpsfl DECKEL MAHO DMU 50 T ini diproduksi pada tahun 2002. Dilengkapi dudukan spindle SK40 DIN69871, ukuran meja 700x500 mm, dan RPM maksimum 9000. Ideal untuk pekerjaan pemesinan yang fleksibel. Hubungi kami untuk informasi lebih lanjut. Jenis Aplikasi Milling (Frais)

Kondisi: diremaj di bengkel (bekas), Tahun pembuatan: 1996, Mesin Gerinda Ukir Merek: Deckel Tipe: S0 Tahun pembuatan: 1996 – diperiksa di bengkel No. mesin: 26617 Hfedpfx Ahox Hx Elepel Aksesori: - Batu gerinda dengan flensa - Buku petunjuk pengoperasian Bekas, dijual apa adanya Mesin secara teknis sesuai dengan standar tahun pembuatannya.

Kondisi: diremaj di bengkel (bekas), Tahun pembuatan: 1987, Mesin frais serbaguna Merek: DECKEL Model: FP 2 Aktiv Tahun pembuatan: 1987 - direkondisi, dicat ulang dengan elektrikal mesin baru RAL7035 abu-abu terang / RAL7012 abu-abu basal RAL5008 abu-abu kebiruan No. Mesin: 2202-11579 Tipe kepala frais: 2271 Nomor kepala frais: 300-3606 dengan garansi Hfsdpfx Ahox A Eddjpsl penerimaan geometrik dengan protokol pengujian Aksesori: - Penunjuk digital aktif 3-sumbu HEIDENHAIN TNC 113 - Meja tetap 660 x 380 mm (alur-T: 12 mm) - Kepala frais vertikal SK 40 dengan ulir penarik S 20 x 2 - Pelumasan sentral manual - Sistem pendingin - Manual pengoperasian - bekas, kondisi sebagaimana adanya -

Kondisi: baik (bekas), Tahun pembuatan: 2004, Fungsionalitas: berfungsi sepenuhnya, jam operasional: 39.000 h, jarak pergerakan sumbu X: 500 mm, jarak lintasan sumbu Y: 420 mm, jarak gerak sumbu Z: 380 mm, tinggi total: 5.600 mm, panjang total: 9.000 mm, berat keseluruhan: 6.000 kg, model controller: Heidenhain Mill Plus IT, For sale is a 5-axis machining centre of the DMU brand, model 50 eVolution. Of particular note is the GMN high-frequency spindle HCS 30,000/15 and the 92-position tool changer. The machine is in good condition and fully operational. Technical data: Year of manufacture: 2004 Operating hours: approx. 39,000 h Control system: Heidenhain MillPlus IT Table size: approx. 500 mm diameter Travel range: X-axis: 500 mm Y-axis: 420 mm Z-axis: 380 mm A-axis: 0-180° C-axis: 360° Hedpjtyit Eefx Ahpefl Tool holder: HSK 50 Spindle speed: max. 30,000 rpm Frequency: 500 Hz Power: 15 kW Tool positions: 92 NO chip conveyor Space requirement as per drawing: 9,000 x 5,600 mm Transport dimensions: 2,800 x 3,700 x 2,800 mm Weight: 6,000 kg Upon request, transport and loading can be organised throughout Europe for an additional fee. Prices are subject to VAT. Inspection possible by appointment. Contact us – our team will be happy to assist you. Trade-in or exchange possible! Machinery - Purchase/Sale PURCHASE / SALE OF PRODUCTION & METALWORKING MACHINES AND MORE. Fzho0bc Do you need a high-quality yet affordable metalworking machine for your production? Or are you looking to sell yours? For further information or to contact us, please visit our website.

Kondisi: bekas, Mesin tersebut dapat diperiksa langsung di tempat kami. Hfodpfx Aeviq Tzjhpjl

Kondisi: bekas, Technical details: X-travel: 600 mm Y-travel: 300 mm Z-travel: 360 mm Speed range: max. horizontal: 40–2000 rpm Hfodpsu U E T Ijfx Ahpel Spindle taper: vertical / horizontal: SK 40 / SK 40 Speed range: max. permissible: 40–2000 rpm Feed rate: 2–3600 mm/min Quill stroke: 80 mm Table size: 810 x 420 mm Total power requirement: 3 kVA Machine weight approx.: 1300 kg Dimensions (LxWxH): approx. 1.8 x 1.35 x 1.95 m Milling machine with slotting head Slotting stroke: 32–80 mm with 10 x double strokes, 24–285 strokes/min Heidenhain 3-axis digital readout *

Kondisi: bekas, Glass scale, glass measuring scale, scale, digital display, measuring scale, linear measuring system, length measuring device, linear scale, position indicator, digital scales, digital scale for digital display -Manufacturer: Heidenhain, glass scale removed from Deckel FP4L milling machine -Type: LS 803 ML 1240 mm -Quantity: 1x glass scale available -Dimensions: 1345/200/H50 mm Hfedpjuuu H Ejfx Ahpsl -Weight: 1.2 kg

Kondisi: bekas, Tahun pembuatan: 2005, translation-01 Hfodevn Ur Ejpfx Ahpsl

Kondisi: baik (bekas), Tahun pembuatan: 1980, Mesin Gravir dan Mesin Milling Penyalin Pabrikan: DECKEL Tipe: GK 21 Tahun: sekitar 1980 Diameter Mata Milling Maksimum: 10 mm Kecepatan Spindel: 475 - 20.000 rpm Lintasan kerja: 160 mm Y, 300 mm Z, 365 mm Meja: 200 mm X 360 mm Hedpfx Ahovk D A Eopsfl Lemari mesin lengkap dengan banyak aksesori dan dokumentasi mesin tersedia. Berat: 620 kg.

Kondisi: siap digunakan (bekas), Deckel SOE Cutter Grinder Maximum grinding length: 90 mm Maximum grindable angle: 180° Maximum grindable radius: 10 mm Coarse feed: 100 mm Fine adjustment: 15 mm Swiveling range of indexing head carrier: 90° Coarse adjustment of indexing head slide: 40 mm Fine adjustment of indexing head slide: 12 mm Height from center of tube guide to center of grinding spindle: 140 mm Wheel size: 100 x 50 x 20 mm Hfedpfxsxyv Axs Ahpsl You are welcome to arrange an inspection. You will receive a proper invoice. For international customers, a net invoice can be issued, provided a valid VAT ID number is supplied. Subject to prior sale. If you have any questions, please feel free to contact us by telephone. Our phone number is listed at the bottom of the item page in the legal notice / seller’s legal information section. Please visit our shop and check out our other listings as well. All company names and trademarks mentioned are the property of their respective owners and are used for identification and descriptive purposes only. Assembly and electrical connection of the machine/equipment must be carried out or inspected by a qualified specialist. Deviations from technical data as well as errors in the item description may occur and are subject to change without notice. Shipping is only available for commercial customers – private buyers may only collect in person.

Kondisi: diremajakan ulang (bekas), Tahun pembuatan: 1988, - Completely overhauled in 2022 - Heidenhain TNC320 CNC control - CNC or manual operation possible - Movable vertical milling head with extendable spindle - Counter bearing for long milling arbors - Hydraulic tool clamping - Automatic transmission - Automatic clamping on X, Y, and Z axes - Central automatic lubrication - Coolant system - Direct path measurement - Collision protection coupling on Y and Z axes - Year of manufacture: 1988 - Includes tool holders, drilling/milling tools & tool trolley Specifications Working Area: - X-axis (longitudinal): 485 mm - Y-axis (cross): 385 mm - Z-axis (vertical): 380 mm - Quill stroke (vertical): 80 mm - Vertical milling head manually movable on spindle block: 150 mm Main Drive: - Pole-changing three-phase brake motor: gearbox with forward/reverse - Power: 3.7 / 4.4 kW - Spindle speeds: 63 - 3150 rpm (18 steps) - Step increment: 1.25 - Tool holder: SK40 (M16) - Tool clamping: disc spring pack - Tool release: hydraulic Feed Drive: - X-axis: 1 DC motor - Y & Z-axis: 1 DC motor - Ball screws: all axes - Feed rate: 2 - 3000 mm/min (programmable) - Rapid traverse X/Y/Z-axis: 3000 mm/min Hsdpfswhk Ubox Ahpsfl Table Slide: - T-slots quantity: 4 - T-slot width: 14H7 mm - T-slot spacing: 63 mm - Permissible load: approx. 600 kg Installation: - Footprint (with safety area): approx. 2300 x 2500 mm - Machine weight incl. vertical head and angle table: approx. 1830 kg - Operating voltage: 400 V - Total connected load: 12.5 kVA - Floor load: 3000 kg/m²

Kondisi: bekas, Tahun pembuatan: 2005, x-travel 1,000 mm y-travel 1,000 mm z-travel 1,000 mm Control system: Siemens 840 D Spindle speed range: 20 - 18,000 rpm Main spindle drive power: 28 / 19 kW Max. torque: 121 Nm Tool holder: HSK-A63 Tiltable B-axis: -30 / +180° Swivel time: 1.2 s Number of pallets: 2 Pallet size: 1,000 x 800 mm Max. workpiece weight: 1,500 kg Rotary C-axis: 360° Number of tool stations: 180 positions Tool holder: HSK-A63 Total power requirement: 78 kVA Machine weight: approx. 27.0 t Space requirements: approx. 8.0 x 7.0 x 3.4 m 5-Axis CNC Universal Machining Centre DECKEL MAHO - DMC 100 U duoBLOCK Hjdpfx Aowf Rgfjhpefl - Swivel milling head (B-axis) - NC rotary table (C-axis) - Pallet changer - 180-position tool magazine - WITHOUT zero-point clamping system - WITHOUT RINGLER extraction unit - WITHOUT tools

Kondisi: bekas, Unit hidrolik dengan pompa hidrolik FRIEDRICH - REXROTH - HYDRONORMA Unit hidrolik tipe HY01 - PV2V3-30 / 12R1MC 63 A1 Tahun pembuatan: 1979 Tekanan kerja pompa: 80 bar Aliran volume pompa: 14 liter/menit (tanpa tekanan) Daya motor: 1,5 kW Kapasitas tangki: sekitar 30 liter Koneksi listrik: 400 Volt, 50 Hz - Unit senyap, desain kompak menghemat tempat - Pompa hidrolik BOSCH REXROTH tipe PV2V3-30 / 12R1MC 63 A1 - Katup solenoid BOSCH REXROTH 081WV06P1N112 Hfsdpfx Ahexf Uzkspol - Filter hidrolik pada saluran balik - Manometer tekanan - Tangki hidrolik atas dengan penutup yang dapat dibuka - Saklar listrik untuk perubahan 2 arah Dimensi (P x L x T): 415 x 410 x 850 mm Berat sendiri: 85 kg Kondisi baik

Kondisi: bekas, Tahun pembuatan: 1976, Travel (X/Y/Z): 350 / 150 / 340 mm Table clamping surface: 600 x 210 mm Spindle taper: SK 40 Spindle speeds: 40 - 2000 rpm Feeds: 5 - 500 mm/min Rapid traverse: 1.2 m/min Total power requirement: 1.9 kW Hfodpfxowwwr Eo Ahpsl Machine weight approx. 0.7 t - Machine from training workshop - Accessories: Fixed table, vertical head with extendable quill, 3-axis HEIDENHAIN digital readout, various short and long arbors, various collets, original DECKEL tool cabinet

Kondisi: bekas, Tahun pembuatan: 2010, Translation into English: x-axis travel: 2,600 mm y-axis travel: 700 mm z-axis travel: 700 mm Control: iTNC 530 Heidenhain Main spindle speed range: 20 - 18,000 rpm Main spindle drive power: 35 / 25 kW Tool holder: SK 40 Clamping table surface: 2,900 x 700 mm Max. table load: 2,150 kg Number of tool positions: 30 Tool holder: SK 40 Max. tool diameter: 80 mm Max. tool diameter with free adjacent slot: 130 mm Max. tool length: 300 mm Max. tool weight: 6.0 kg Rapid traverse (X/Y/Z): 40 m/min Max. feed rate: 40,000 mm/min Max. feed force: 8 kN Total power requirement: 54 kVA Machine weight: approx. 14.4 t Space requirement: approx. 8.0 x 5.6 x 2.8 m CNC travelling column milling machine DECKEL MAHO - DMF 260 New Design Hedpfev Dxxnsx Ahpjfl - NC rotary table (A-axis) - Operating hours: 18,709h spindle running time - Overhauled spindle installed (Dec 2023) - Z-axis weight counterbalance replaced (Feb 2023) - Production package - Option: Tool clamping for pull studs - WITHOUT vices!

Kondisi: bekas, Power output 3 kW Total power requirement 3 kW Weight 1,400 kg O F F E R We can offer you the following from stock, subject to prior sale or error, without obligation: DECKEL Universal milling machine with FAGOR 3-axis digital readout Model: FP 3 Year of manufacture Serial No. Table travels: longitudinal motorized / manual 490 / 500 mm vertical motorized / manual 370 / 380 mm Cross slide travel: motorized / manual 290 / 300 mm Fixed angle table 2230 420 x 800 mm Distance spindle to table 90 - 470 mm Spindle taper SK 40 18 spindle speeds 40 – 2,000 rpm 18 feeds 10 – 500 mm/min Rapid traverse 1,500 mm/min Spindle drive 3 kW Total power 3 kW - 380 V - 50 Hz Weight 1,400 kg Accessories / Special Features • FAGOR 3-axis digital readout V 300 (glass scales) with extended functions such as chain dimension, absolute dimension, mm/inch switch, etc. Hedov Nq Skepfx Ahpsfl • Moveable DECKEL universal vertical milling head, swiveling +/- 90° • Original Deckel tool cabinet with extensive accessories such as a variety of toolholders, collet chuck with approx. 20 collets, long arbor, various spacer rings, driving dogs, clamping devices, operating tools, etc. • DECKEL large, fixed angle table, 420 x 800 mm, mounted • DECKEL universal dividing head with direct and indirect indexing, various index plates • Add-on manual DECKEL universal rotary table Ø 380 mm with direct and indirect indexing, various index plates • Coolant system, chip tray, central lubrication, separate control cabinet, operating manuals Condition: Very well maintained! Ideal machine for training workshops or small batch production! Please click here for a video of the machine: FP3/4 Delivery: Ex stock, immediately available, FCA Metzingen Payment: Net, strictly upon receipt of invoice We always have a large selection of conventional and CNC milling machines in stock. Please contact us!

Kondisi: baik (bekas), Tahun pembuatan: 2000, jam operasional: 53.776 h, Fungsionalitas: berfungsi sepenuhnya, jarak pergerakan sumbu X: 500 mm, jarak lintasan sumbu Y: 400 mm, jarak gerak sumbu Z: 380 mm, diameter meja putar: 500 mm, kecepatan rotasi (maks.): 18.000 rpm, For sale: Deckel Maho DMU 50 eVolution 5-axis simultaneous milling machine The machine is in good condition and immediately ready for operation. Technical Data: Hedpfx Ahewxd Agopjfl Year of manufacture: 2000 Control: MillPlus Operating hours: 53,776 h Spindle hours: 18,512 h X-axis: 500 mm Y-axis: 400 mm Z-axis: 380 mm B-axis: 0–180° C-axis: 360° Clamping surface: Ø 500 mm Max. table load: 200 kg Spindle taper: SK40 Max. speed: 18,000 rpm Spindle power: approx. 15 kW Tool magazine: 60 positions Dimensions: approx. 3,400 × 2,400 × 2,500 mm Weight: 5,500 kg Transport and loading can be organized Europe-wide upon request and at additional cost. All prices plus VAT. Inspection possible by appointment. Please contact us—our team is happy to assist you. Trade-in or exchange possible! Machines Purchase / Sales BUY / SELL PRODUCTION & METALWORKING MACHINES AND MORE. Do you need a high-quality yet affordable metalworking machine for your production? Or are you looking to sell your machine? For more information or contact options, please visit our website.

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2005, jam operasional: 42.900 h, Data Umum Berat mesin: 6800 kg Penggerak Utama Rentang kecepatan spindel: 12000 Pergerakan Pergerakan Sumbu X: 640 mm Pergerakan Sumbu Y: 600 mm Pergerakan Sumbu Z: 500 mm Meja Panjang luar: 850 mm Lebar luar: 600 mm Mesin 3-sumbu DMG DECKEL MAHO DMC 64V linear ini diproduksi pada tahun 2005. Ideal untuk pengerjaan presisi, pusat pemesinan vertikal ini menawarkan performa tangguh dan keandalan tinggi. Pertimbangkan kesempatan untuk membeli pusat pemesinan vertikal DMG DECKEL MAHO DMC 64V linear ini. Hubungi kami untuk informasi lebih lanjut. Jenis Aplikasi Hfedpfxjx Stl Ds Ahpel Milling

Kondisi: siap digunakan (bekas), Tahun pembuatan: 1996, jam operasional: 12.800 h, jumlah sumbu: 5, Mesin 5 sumbu tipe DECKEL MAHO DMU 50V ini diproduksi pada tahun 1996. Mesin ini dilengkapi dengan kontrol Millplus dengan versi perangkat lunak DV400, unit hidraulik eksternal untuk perlengkapan penjepit, serta penjepit hidraulik Hainbuch untuk penjepit BZI32. Jika Anda mencari kinerja frais berkualitas tinggi, Anda sebaiknya mempertimbangkan DECKEL MAHO DMU 50V yang kami tawarkan untuk dijual. Hubungi kami untuk informasi lebih lanjut mengenai mesin ini. Peralatan tambahan • Penjepit hidraulik Hainbuch untuk penjepit BZI32 Keunggulan mesin Keunggulan teknis mesin • Mesin dioperasikan dengan encoder motor, karena encoder sumbu C saat ini rusak. • Pendingin internal: 40 bar • Unit hidraulik eksternal untuk perlengkapan penjepit • Penyangga pada meja putar • Lubang putar pada meja Hfodjx U Tinspfx Ahpol • Posisi alat: 24 posisi alat – 2 sebagian tersedia (posisi rusak) • Probe pengukuran: Renishaw – sudah disiapkan Informasi tambahan • Mesin masih dalam kondisi berfungsi • Kebutuhan ruang: 4200 x 2000 mm (dengan unit pendingin) • Kontrol: Millplus DV400

Kondisi: baik (bekas), Tahun pembuatan: 2004, jam operasional: 6.293 h, Fungsionalitas: berfungsi sepenuhnya, Dijual sebuah pusat pemesinan merek Deckel Maho tipe DMU 50. Mesin dalam kondisi baik dan dapat dilihat langsung di lokasi. Hfodoyghqvspfx Ahpel

Kondisi: siap digunakan (bekas), Tahun pembuatan: 2007, jam operasional: 11.421 h, Fungsionalitas: berfungsi sepenuhnya, nomor mesin/kendaraan: 29100009074, jarak pergerakan sumbu X: 640 mm, jarak lintasan sumbu Y: 600 mm, jarak gerak sumbu Z: 500 mm, diameter benda kerja (maks.): 140 mm, kecepatan spindel (maks.): 16.000 rpm, jumlah slot dalam magazin alat: 30, RINCIAN TEKNIS Rentang gerakan sumbu X: 640 mm Rentang gerakan sumbu Y: 600 mm Rentang gerakan sumbu Z: 500 mm Luas permukaan penahan, panjang: 850 mm Luas permukaan penahan, lebar: 600 mm Alur-T: DIN 650-14 Tinggi permukaan atas meja: 850 mm Beban meja maksimum: 600 kg Produsen spindel: Franz Kessler GmbH Kecepatan putar: 1.600 - 4.700 / 4.700 - 16.000 RPM Jumlah tempat majalah: 30 Pengkodean tempat: Pengkodean tempat tetap Berat beban maksimum: 90 kg Waktu pergantian pahat tanpa logika gerakan bebas t3/t2: 6,8 detik Waktu pergantian pahat tanpa logika gerakan bebas t1 (30): 7,9 detik Waktu pergantian pahat dengan logika gerakan bebas t3/t2: 8,3 detik Waktu pergantian pahat dengan logika gerakan bebas t1 (30): 9,3 detik PERALATAN DAN MAJALAH PERALATAN Diameter peralatan standar maksimum: 100 mm Diameter peralatan khusus dengan tempat tetangga yang kosong maksimum: 140 mm Panjang peralatan maksimum: 300 mm Berat peralatan maksimum: 6 kg PENGUMPANAN Gaya pengumpanan sumbu X, Y, dan Z: 7.000 N Kecepatan pengumpanan sumbu X, Y, dan Z maksimum: 40 m/menit Kecepatan gerakan cepat sumbu Y dan Z: 40 m/menit Kecepatan gerakan cepat sumbu X: 70 m/menit Diameter/pitch sekrup bola: 40/15 mm SISTEM PENGUKURAN Akurasi pemosisian sistem pengukuran langsung sumbu X: 0,008 mm Akurasi pemosisian sistem pengukuran tidak langsung sumbu Y dan Z: 0,020 mm Akurasi pemosisian sistem pengukuran langsung (opsi): 0,010 mm Resolusi: 0,001 mm Ketelitian input sumbu X, Y, dan Z: 0,001 mm RINCIAN MESIN Jam operasi: 11.421 jam Hfjdpfezpxqdjx Ahpol Waktu menyala: 32.054 jam Daya terhubung: 33 kVA Arus nominal maksimum: 58 A Sekering: 63 A Tegangan jaringan: 400 V Frekuensi jaringan: 50/60 Hz Tegangan kontrol: 230 V Tegangan kontrol: 24 V CAIRAN PENDINGIN DAN PENGELOLAAN SERPIHAN Volume wadah kotak serpihan: 150 l Kinerja pompa untuk suplai cairan pendingin eksternal: 50 l/menit Tekanan suplai cairan pendingin eksternal: 2,0 bar Kinerja pompa untuk pembilasan serpihan: 90 l/menit Tekanan pembilasan serpihan: 1,9 bar Kinerja pompa untuk pistol semprot: 50 l/menit Tekanan pistol semprot: 2,0 bar

Kondisi: sangat baik (bekas), stichelschleifmaschine-01 Hedpey Ifc Tsfx Ahpofl

Kondisi: baik (bekas), Tahun pembuatan: 1984, Fungsionalitas: berfungsi sepenuhnya, Jarak pergerakan sumbu X: 500 mm Jarak pergerakan sumbu Y: 400 mm Jarak pergerakan sumbu Z: 400 mm Kecepatan putar: 31,5 – 2000 RPM Pemasangan perkakas: SK 40 dengan ulir pengencang S20x2 Hfedpfx Aszi Uy Ushpol Jenis meja: Meja tetap Luas permukaan penjepit meja: 700 x 330 mm Berat: 1600 kg Dimensi: sekitar 1700 x 1300 x 1900 mm Lapisan cat: RAL 6011 Hijau Reseda Tampilan digital: 3 sumbu HEIDENHAIN Aksesori: Pelumasan terpusat, bak KSS, aksesori lainnya sesuai permintaan