Used Bts-Mf450 Ballenpresse for sale (699)

Condition: as good as new (ex-display), Year of construction: 2026, The BTS-MF550HD special waste baler is the ideal baler for compacting difficult materials such as scrap tyres, computer monitors CRT, food cans and metal containers, big bags, plastic canisters and plastic packaging, but also car bumpers can be reduced to a minimum of volume with the baler. The special baling press impresses with its ease of use, safe operation and its spacious filling chamber, it is ideal for medium to large amounts of material. By baling these valuable and recyclable materials you achieve a volume reduction of up to 90%, a significant saving on your disposal costs and you properly return the material back into the recycling cycle. Pressing force: 50 Ton Bale weight: up to 550 kg (material depending) Bale size: 1200 H (var.) x 1500 W x 800 D mm Machine size: 3570 H x 2115 W x 1200 D mm Machine weight: 1935 kg Gsdpozd Rvofx Aixoka Transport height: 2500 mm Loading aperture: 1500 W x 780 H mm Cycle times: 50 seconds Motor: 5.5 kW 16 Amp Power supply: 380 - 400 V (3 phase) Noise level: 68 dB Extra-long dual cylinders for even and early compaction of the material User-friendly lever control Bale kicker for easy eject the bales Extra retainer for reducing the material spring back Reel holder for 5 rolls of strapping A quality product “Made in Europe” Suitable for compacting Scrap tyres Food cans and sheet metal containers Canisters and plastic containers / packaging Car bumpers Big bags Cardboard and plastic film / foils Other difficult valuable materials Optional extras Machine colour RAL PLC auto compaction cycles with bale full light and E-stop with locking key Sliding top door Strapping rolls / bale wire Motor 11 kW 32 Amp Tyre Baler, Tire Baler, Scrap Tyre Baler, Scrap Tire Baler, Tyre Compactor, Tire Compactor, Can Baler, Waste Baler, Waste Compactor, Cardboard Baler, Film Baler, Foil Baler, Packaging Plastic Film Foil, Bailer, Baling Press, Garbage Press, Trash Compactor, Baling Compactor, Paper Press, Waste Paper Press, Cardboard Press, Cardboard Compactor, Foil Press, Paper Baling Press, Waste Baler, Residual Waste Compactor

Condition: as good as new (ex-display), Year of construction: 2026, The BTS-MF60 is the ideal waste baler for compacting your loose cardboard and plastic film waste into a bale of up to 60 kg. With a can crush insert baler is even suitable for crushing individual sheet metal and plastic containers and also cans. The baling press impresses with its ease of use, safe operation and its large filling volume. By baling these valuable and recyclable materials you achieve a volume reduction of up to 90%, a significant saving on your disposal costs and you properly return the material back into the recycling cycle. Pressing force: 3.5 Ton Bale weight: up to 60 kg (material depending) Bale size: 800 H (var.) x 700 W x 500 D mm Machine size: 1996 H x 1040 W x 720 D mm Machine weight: 260 kg Transport height: 1996 mm Loading aperture: 700 W x 492 H mm Cycle times: 24 seconds Motor: 1.5 kW 13 Amp Power supply: 220 - 240 V (1 phase) Noise level: 68 dB Gedpfxovah Eps Aixjka User-friendly lever control Bale trolley for removing the bales Retainer for reducing the material spring back Reel holder for 2 rolls of strapping A quality product “Made in Europe” Suitable for compacting Cardboard Plastic film and foils Cans and light sheet metal containers Canisters and light plastic containers Clothes Light valuable materials Optional extras Machine colour RAL Can crusher insert PLC auto compaction cycles with bale full light and E-stop with locking key Strapping rolls Power supply 380 - 400 V (3 phase) Waste Baler, Waste Compactor, Cardboard Baler, Film Baler, Foil Baler, Packaging Plastic Film Foil, Bailer, Baling Press, Garbage Press, Trash Compactor, Baling Compactor, Paper Press, Waste Paper Press, Cardboard Press, Cardboard Compactor, Foil Press, Paper Baling Press, Waste Baler, Residual Waste Compactor

Condition: as good as new (ex-display), Year of construction: 2026, The BTS-MF500LH is the ideal waste baler for compacting your loose cardboard and plastic film waste into a bale of up to 500 kg. Due to the compact design and low height this baler is perfect for rooms with limited ceiling heights. The waste baler impresses with its ease of use, safe operation and its large filling volume. By baling these valuable and recyclable materials you achieve a volume reduction of up to 90%, a significant saving on your disposal costs and you properly return the material back into the recycling cycle. Pressing force: 50 Ton Bale weight: up to 500 kg (material depending) Bale size: 1100 H (var.) x 1400 W x 800 D mm Machine size: 2249 H x 2041 W x 1350 D mm Machine weight: 2100 kg Transport height: 2249 mm Loading aperture: 1400 W x 680 H mm Cycle times: 35 seconds Motor: 11 kW 32 Amp Power supply: 380 - 400 V (3 phase) Noise level: 68 dB Auto control panel with bale full light and E-stop with locking key Strap eject for easy removal of bales Retainer for reducing the material spring back Low height, perfect for limited ceiling heights Gjdpfx Aovugzfoixska Hour counter Reel holder for 6 rolls of strapping A quality product “Made in Europe” Suitable for compacting Cardboard Plastic film and foils Big Bags Cans and PET bottles Light valuable materials Optional extras Machine colour RAL Strapping rolls Waste Baler, Waste Compactor, Cardboard Baler, Film Baler, Foil Baler, Packaging Plastic Film Foil, Bailer, Baling Press, Garbage Press, Trash Compactor, Baling Compactor, Paper Press, Waste Paper Press, Cardboard Press, Cardboard Compactor, Foil Press, Paper Baling Press, Waste Baler, Residual Waste Compactor

Condition: as good as new (ex-display), Year of construction: 2026, The BTS-MF200MK is the ideal multi chamber waste baler for compacting your loose cardboard and plastic film waste into a bale of up to 200 kg. Various materials can be collected into two or more chambers installed next to each other and once a chamber is filled the rollable compaction head will be moved over and the material can be baled. By baling these valuable and recyclable materials you achieve a volume reduction of up to 90%, a significant saving on your disposal costs and you properly return the material back into the recycling cycle. Pressing force: 16 Ton Bale weight: up to 200 kg (material depending) Bale size: 1000 H (var.) x 1100 W x 800 D mm Machine size: 2506 H x 3260 W x 1269 D mm Gkodpfx Aevugz Eoixsa Machine weight: 1400 kg Transport height: 2506 mm Loading aperture: 1100 W x 800 H mm Cycle times: 34 seconds Motor: 2.2 kW 16 Amp Power supply: 220 - 240 V (1 phase) Noise level: 68 dB User-friendly lever control Bale trolley for removing the bales Short processing time because there is always a chamber available for loading Retainer for reducing the material spring back Reel holder for 8 rolls of strapping A quality product “Made in Europe” Suitable for compacting Cardboard Plastic film and foils Big Bags Clothes Light valuable materials Optional extras Machine colour RAL PLC auto compaction cycles with bale full light and E-stop with locking key Extra chamber (up to 6 chambers in total) Strapping rolls Twin Chamber Waste Baler, Multi Chamber Waste Baler, Waste Baler, Waste Compactor, Cardboard Baler, Film Baler, Foil Baler, Packaging Plastic Film Foil, Bailer, Baling Press, Garbage Press, Trash Compactor, Baling Compactor, Paper Press, Waste Paper Press, Cardboard Press, Cardboard Compactor, Foil Press, Paper Baling Press, Waste Baler, Residual Waste Compactor

Condition: used, Manufacturer: EDA Overall dimensions: 6600x1400x(1700 mm high) Gkedeyq Nrcspfx Aixja The equipment is not operational; it does not work due to a hydraulic issue!

Condition: used, Year of construction: 2013, pressing force: 40 t, Manufacturer: HSM Model: HL 4010 Re Gksdpfx Aijyq Ngtsxea Year of manufacture: 2015 Pressing force: 40 t

Condition: ready for operation (used), Year of construction: 2015, Manufacturer: HSM Model: HL 4010 Li Year of manufacture: 2015 Godpfx Asyhbxceixjka Pressing force: 40 t

Condition: used, Year of construction: 2015, Manufacturer: HSM Gjdpfx Aijyibv Iexjka Model: HL 4010 Re Year of manufacture: 2015 Pressing force: 40 t

Condition: reconditioned (used), Year of construction: 2020, pressing force: 50 t, filling opening width: 670 mm, filling opening length: 1,200 mm, bale length: 1,200 mm, bale weight: 450 kg, total width: 800 mm, total height: 800 mm, power: 7.5 kW (10.20 HP), empty load weight: 2,180 kg, input frequency: 50 Hz, Tested and ready for operation, Vertical baler Dixi 50S PET Year of manufacture: 2020 Bale dimensions (L x W x H, mm): 1200 x 800 x 800 - 1100 Bale weight (kg): approx. 350-500 kg Specifications (L x W x H, mm): 1600 x 1300 x 3100 Gjdpfewviz Nsx Aixoka Loading opening (mm): 1200 x 670 Pressing force: 50 tons Power supply: 400 Volt Press immediately ready for use Net price plus VAT Delivery available at extra charge.

Condition: as good as new (ex-display), Year of construction: 2026, The BTS-Tyre Packing Machine Gen.2 is ideal for used tyre companies with large tyre volumes. The triple machine is the perfect solution for cost-effective disposal or resale of second-hand tyres. By doubling or tripling the tyres you achieve an enormous volume reduction, the available storage and loading capacity, as well as the permissible transport weight can be used much more efficiently. Pressing cylinder: Pneumatic Pressing force: 1.23 kN, adjustable Machine size: 1250 H x 1930 W x 660 D mm Machine weight: 93 kg Transport size: 1250 H x 1200 W x 800 D mm Working height: 800 - 1020 mm, adjustable Power supply: Air, up to 10 bar / 145 Psi Working pressure: 6 - 8 bar User-friendly and safe two hand control Strong and long-life design High-performance pneumatic cylinder Ball bearing roller guides Adjustable working height Low noise level by silencer Air quick connector A quality product “Made in Germany” Suitable for doubling and tripling Second-hand tyres Optional extras Machine colour RAL BTS-MF550HD Scrap Tyre Baler Gsdpj Ry Huefx Aixoka Demo-Video shows BTS-Tyre Packing Machine Gen.1, the BTS-Tyre Packing Machine Gen.2 operates on same way. Tyre packing machine, Tyre triple machine, Tyre double machine, Tyre doubler, Tyre tripler, Tyre packer, Tire packing pachine, Tire tripling machine, Tyre doubling machine, Tire doubling machine

Year of construction: 2025, condition: used, Packaging machines, consisting of: 1x Rotary arm wrapper with top sheet applicator, type: B200E, manufacturer: TechnoWrapp 1x Ring wrapper, type: A800-4, manufacturer: TechnoWrapp 1x Rotary arm wrapper, type: CW 400E, manufacturer: CombiPack 1x Baler, type: BVP-950-HL1, manufacturer: Willems, Indion Gjdpfx Aewk Dv Doixoka Technical details, equipment, photos, and operating time are shown in the attached description.

Condition: good (used), Year of construction: 1999, load capacity: 1,600 kg, lifting height: 2,900 mm, fuel type: electric, mast type: duplex, construction height: 2,000 mm, empty load weight: 1,300 kg, Received in trade-in Electric stacker Brand: BT Year: 1999 BLOCK PALLETS: outer fork width 68 cm Capacity: 1,600 kg Lifting height: 2,900 mm Drive-through height: 2,000 mm Battery: maintenance-free GEL with charger Watch the video on YouTube Gkjdpfxeyc Eygs Aixsa

Condition: good (used), Year of construction: 2003, operating hours: 4,899 h, load capacity: 2,500 kg, lifting height: 3,700 mm, fuel type: electric, mast type: duplex, construction height: 2,480 mm, mileage: 4,899 km, Duplex electric forklift Brand: BT Year of manufacture: 2003 Capacity: 2,500 kg Lift height: 3,700 mm Overall height: 2,480 mm Gedjymbakspfx Aixeka Equipped with sideshift 4,899 operating hours Battery: 2009 Comes with external charger Schedule an appointment for a test drive

Condition: new, Year of construction: 2026, functionality: fully functional, power: 3.7 kW (5.03 HP), overall weight: 12 kg, Wacker Neuson BTS 635s Cut-Off Saw incl. 350mm Cutting Wheel NEW Wacker Neuson BTS 635s Joint Cutter / Cut-Off Saw – NEW | 128 mm Cutting Depth | 350 mm Wheel | 2-Stroke Gasoline Engine Article number: 5100005408 Technical Data: Manufacturer: Wacker Neuson Model: BTS 635s Condition: NEW Operating Weight: 11.6 kg Wheel Diameter: 350 mm Wheel Arbor: 25.4 mm Gkjdpfx Aszru Abjixoa Max. Cutting Depth: 128 mm Engine: 2-Stroke Gasoline Engine Engine Power: 3.7 kW Fuel: Gasoline Starting System: Reversible Start Accessories: 350mm DIA Cutting Wheel Highlights & Features: - Compact cut-off saw for precise cuts in asphalt and concrete - Powerful 2-stroke engine – reliable and efficient - Cutting depth up to 128 mm – ideal for versatile applications - Easy handling due to low weight - Ergonomic design for comfortable working - Robust construction – ideal for everyday use on construction sites - Made by Wacker Neuson – proven quality and durability - Delivery without cutting wheel – accessories available as an option Application Areas: ✓ Road and civil engineering ✓ Fiber optic expansion ✓ Asphalt and concrete cutting ✓ Sewer construction and cable laying ✓ Renovation and repair work ✓ Construction companies, municipalities and garden/landscaping ✓ Joint cutting on small to medium-sized construction sites Location: Warehouse D-46514 Schermbeck (North Rhine-Westphalia) – Inspection and collection possible Delivery: nationwide in Germany and internationally upon request Price: Ex warehouse Maassenstraße 91, D-46514 Schermbeck (Wesel district) All information without guarantee. Subject to errors and prior sale. Prices excl. VAT Other sizes & models available! ➡️ Cut-off saws with various wheel diameters and engine versions – also electric and battery-powered Buy Wacker Neuson cut-off saw | BTS 635s NEW | Joint cutter with 2-stroke engine | Cut-off saw 350 mm | Cutting depth 128 mm | Wacker Neuson BTS series | Compact cut-off saw | Professional cutting technology Your reliable partner for cutting and sawing technology: Claudio Macagnino Baumaschinen & Nutzfahrzeughandel GmbH ➡️ Request now and secure immediately available new goods! If required, we will gladly offer you a virtual inspection of the machine via video call.

Condition: good (used), Year of construction: 1998, operating hours: 1,452 h, load capacity: 1,600 kg, lifting height: 1,700 mm, fuel type: electric, mast type: duplex, empty load weight: 850 kg, mileage: 1,452 km, Electric double pallet stacker Brand: BT Year of manufacture: 1998 Capacity: 1,600 kg Lifting height: up to 1,700 mm Double pallet model Gkodpfx Aiezpflhsxja Equipped with INITIAL LIFT, ideal for uneven floors Includes battery With charger Watch the video on YouTube

Condition: good (used), functionality: fully functional, machine/vehicle number: CE311133, Year of construction: 2007, operating hours: 8,780 h, load capacity: 4,000 kg, lifting height: 5,000 mm, load center: 500 mm, fuel type: electric, mast type: triplex, construction height: 2,520 mm, battery capacity: 625 Ah, battery voltage: 80 V, front tire type: superelastic tires (non-marking), rear tire type: superelastic tires (non-marking), empty load weight: 7,020 kg, Equipment: clamp, lighting, BT C4E400V 4-wheel electric forklift, year of manufacture 2007 with a Triplex mast and paper roll clamp Details: BT C4E400V Year of manufacture: 2007 Work hours (h): 8780 Mast type: Triplex Lift height (mm): 5000 Freelift (mm): Vollfreihub Build height (mm): 2520 Lift capacity (kg): 4000 Weight (kg): 7020 Additional hydraulic vehicle: AH2 Additional hydraulic mast: AH2 Front wheels: Superelastic non marking Rear wheels: Superelastic non marking Godpfx Aiozmfh Djxjka Battery YOM: 2018 Battery capacity (Ah): 625 Battery voltage (V): 80 Accessories: Flashing beacon. Comments: Full freelift. Capacity with attachment: 2150 kg.

Condition: used, functionality: fully functional, Year of construction: 2013, Gallignani baling press Gjdpfx Aiozb I Nhsxjka Subject to prior sale – all information is provided without warranty. We cannot guarantee the accuracy or completeness of the information provided here. Any warranty and/or liability is excluded. Deviations from the description above cannot be ruled out. We would like to point out that the subject of the purchase agreement to be concluded will be exclusively the motor vehicle in its actual condition.

Condition: used, operating hours: 429 h, color: grey, total length: 3,250 mm, total width: 1,250 mm, total height: 1,900 mm, Empty weight: 3.000 kg Price: On request - Documentation available: No - CE certificate present: No - Serial number: - Operating hours: 429 - Transport dimensions: 3250mm x 1250mm x 1900mm (l x w x h) - Transport weight [kg]: 3000kg Financial information Gkedpfxsym Uzbo Aixea 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 Lukas van Rossum

Condition: new, Year of construction: 2023, For sale is a modern narrow aisle/system truck with a liftable cabin, specifically designed for the loading and unloading of goods as well as order picking in very narrow aisles. The unit is in very good condition and is ideal for high-bay warehouses with high throughput. Technical data Type: Order picking truck for high-bay warehouses Guidance system: Inductive wire Year of manufacture: 2023 Serial number: 6959414 Operating hours: 0 Rated load capacity: 1,500 kg Load center: 600 mm Lifting height: 10,250 mm Godpfx Ajiyprcoixeka Platform lifting height: 8,600 mm Mast type: Triplex Overall height (mast retracted): 4,460 mm Mast height (extended): 11,040 mm Overall length (head retracted): 3,846 mm Vehicle width: 1,270 / 1,520 mm Ground clearance: 60 mm Dead weight (without battery): 6,790 kg Battery weight: 1,760 kg Turning radius: 1,698 mm Working aisle width: 1,760 mm Rack distance: 1,850 mm Fork length: 1,200 mm Performance data Travel speed with/without load: 10 / 12 km/h (programmable) Lifting/lowering speed: 0.4 / 0.4 m/s Equipment Traction battery: TAB Standard 48V 8EPZS 1240 Ah + BFS Charger/rectifier: Polar Q420LOG 24/36/48V, 20-180A (programmable, with analysis functions) Braking system: electromechanical Rollers and wheels: Vulkollan (PU) Price Net price: EUR 93,990 per unit (excluding transport, assembly and commissioning) The narrow aisle truck comes from the official distribution of Toyota Material Handling Polska. If you are interested or have any questions, we look forward to hearing from you.

Condition: good (used), machine/vehicle number: 923577, Year of construction: 2005, operating hours: 6,607 h, €6,500 net BT RR B2 electric reach truck with scale and height indicator Year of manufacture (equipment): 2005 Operating hours: 6,607 h Year of manufacture (battery): 38/2023 Battery capacity: 560 Ah at 48 volts Load capacity: 1,600 kg Overall height: 2,980 mm Lifting height: 6,750 mm; of which approximately 2,330 mm is free lift Overall dimensions approximately: 1,300 mm wide; 2,500 mm long (retracted) With integrated scale via oil pressure in 50 kg increments and lifting height indicator from 2.33 m Side shifter Tilting function 360-degree steering possible For a reach truck, this unit is very "off-road capable" and does not get stuck on every small obstacle. Weight approximately 3,500 kg including battery Including charger The equipment is in perfect working order and is immediately ready for use. Gkjdpszhx Umefx Aixea Affordable delivery with a specialist company is possible. Please also check out our other listings. We constantly have many more high-lift and low-lift trucks and reach trucks in stock. Do you need spare parts for your reach truck, high-lift truck, etc.? Simply contact us. Not the right equipment? Just send us an email with your requirements and we will see if we can find the right one for you. ID: 923577

Condition: good (used), Year of construction: 2015, operating hours: 3,126 h, load capacity: 2,000 kg, fuel type: electric, mileage: 3,126 km, This BT brand electric pallet truck is from 2015 and is in good condition.Capacity is 2,000 kg, Equipped with 2,000mm forks;3,126 hours on the counter;Battery from 2013 has an external charger;Video follows. Gedpfx Aiovclpwjxjka

Condition: excellent (used), Year of construction: 2016, operating hours: 518 h, functionality: fully functional, working width: 550 mm, area performance: 2,035 m²/h, overall weight: 253 kg, warranty duration: 12 months, water tank capacity: 40 l, FIMAP MX 55 BT SCRUBBER NEW 12V 105Ah SIAP GEL BATTERIES (2x) 2016 production year Machine mileage is 518 hours 550mm cleaning head, equipped with new pad holders with red pads, enabling work on any surface. New polyurethane rubber bands, resistant to contact with oil liquids, greases and petroleum derivatives. Wheel drive makes everyday use easier New protective rubber around the brush head prevents water from splashing outside the machine's outline New suction turbine ensures high water suction power from the squeegee Each device we offer has individually taken photos, you buy exactly the machine you see TECHNICAL DATA: Model: Fimap MX 55 BT Power supply voltage: 24 V Brush working width (mm): 550 Suction nozzle working width (mm): 700 Efficiency (m²/h): 2035 Working speed (km/h): 4 Tank capacity (l): 40/50 Weight (kg): 253 INCLUDED: NEW 12V 105Ah SIAP GEL BATTERIES (2x) NEW pad holders with red pads (2x) Suction bar with new rubbers Tenzi Normal 5L liquid - FREE Gkedju Id Tijpfx Aixea KEY FEATURES: A 40-litre tank allows you to pour a large amount of cleaning solution, so you don't have to stop working often to refill it Thanks to its design, the machine is very manoeuvrable. A small turning radius also allows you to work in narrow passages and alleys. The parabolic squeegee beam ensures precise suction of the solution from the cleaned surface A large working width (550mm) ensures high surface efficiency A very legible and intuitive control panel.

Year of construction: 2026, condition: new, The BTS-Plastic Foil Compactor is the solution to keep large bulky packaging film under control. With its space-saving footprint and secure stand you can easily reduce all foil waste to a minimum of volume. The retaining ring in the plastic foil compactor prevents annoying expansion so that the foils stay where they belong. The filled bags can be baled by using a waste baler or disposed of in a recycling bin. By collecting and compacting this valuable and recyclable material you achieve a volume reduction of up to 90%, a significant saving on your disposal costs and you properly return the material back into the recycling cycle. Foil Compactor size: 1000 H x 450 W x 420 D mm Foil Compactor weight: 5.5 kg Foil Compactor colour: RAL 9006 silver Foil Compactor Bag volume: 240 Ltr. Foil Compactor Bag weight capacity: up to 15 kg Easy collecting the packaging films Clean and safe working environment Retaining ring prevents the annoying material expansion of the foils Optimum utilization of bags Reduces frequency of waste collection A quality product “Made in Germany” Suitable for collecting and compacting Bulky packaging films and foils Foam foils Optional extras BTS-Foil Bags 240 Ltr. Plastic Foil Compactor colour RAL (minimum order 40 units) BTS-Waste Baler for plastic film and foils Gsdedzvhwjpfx Aixoka Plastic Film Compactor, Foil Compactor, Plastic Film Collector, Foil Collector, Sack Holder

Condition: used, total length: 6,800 mm, total width: 2,200 mm, total height: 2,000 mm, Empty weight: 11.000 kg Price: On request - Documentation available: Yes - CE certificate present: No - Drive system: Conventional - Centre height [mm]: 630 - Swing over bed [mm]: 1300 - Carriage turning diameter [mm]: 1000 - Distance between centres [mm]: 4000 - Bed width [mm]: 700 - Spindle bore [mm]: 120 - Min. spindle speed [rpm]: 2.8 - Max. spindle speed [rpm]: 400 - Options: Four-jaw chuck, Three-jaw chuck, Removable bed, Quick-change tool post, Fixed steady, Travelling steady - Swing over removable bed [mm]: 1700 - Transport dimensions: 6800mm x 2200mm x 2000mm (l x w x h) - Transport weight [kg]: 11000kg - Transport packages [pcs.]: 2 Financial information VAT: The price shown is exclusive of VAT VAT/margin: VAT deductible for entrepreneurs Gjdjx Iriaopfx Aixska Delivery and trade-in always possible for everything in the industrial sectors Lukas van Rossum

Condition: ready for operation (used), Infranor EL 86 card, part number LK1077700044 + BTS 13659 00 033 card, removed from a Schiess Nassovia machine, used, in good condition, 100% functional, scope of delivery as shown in the photos. Godpfx Aji Ebr Ioixoka