Used Leybold Bav Dn800 Iso-F Ep Va for sale (40,767)

Condition: ready for operation (used), Two like-new and partly originally packaged large-format vacuum angle valves Leybold are available. Deflection: 90°, nominal diameter: 800mm, max. operating pressure: 7bar. Documentation available. An on-site inspection is possible. Lhodpfx Aoyv H E Ejpmjk

Condition: excellent (used), Leybold Two-Stage Rotary Vane Vacuum Pump Here, we offer a Leybold two-stage rotary vane vacuum pump. The TRIVAC B series are oil-sealed vacuum pumps based on the rotary vane principle. The oil injected into the pumping chamber serves for sealing, lubrication, and cooling. The pump housing is composed of individual parts without sealing elements. These are pinned together to ensure easy disassembly and reassembly. Ultimate pressure: 2 x 10⁻³ mbar Motor: 3-phase, 230/400 V, 50/60 Hz Pumping speed (50 Hz): 40 m³/h Pumping speed (60 Hz): 48 m³/h Environmentally friendly: Quiet Vibration-free operation, energy-saving Energy-saving: Low power consumption Low heat dissipation Modern vacuum technology: High pumping speed down to the ultimate pressure Low ultimate pressure, even with gas ballast High water vapor tolerance Continuous operation even at 1000 mbar Built-in oil pump, forced-lubricated plain bearings Minimal air intake High leak tightness (4He-capable) Technical data: Product: TRIVAC D 40 B Suction side connection flange: DN 40 ISO-KF Discharge side connection flange: DN 40 ISO-KF Nominal pumping speed at 50 Hz: 46.0 m³/h Nominal pumping speed at 60 Hz: 55.0 m³/h Pumping speed at 50 Hz: 40.0 m³/h Pumping speed at 60 Hz: 48.0 m³/h Ultimate partial pressure without gas ballast: 1.0 x 10⁻⁴ mbar Ultimate total pressure without gas ballast: < 2.0 x 10⁻³ mbar Ultimate total pressure with gas ballast: < 5.0 x 10⁻³ mbar Water vapor tolerance at 50 Hz: 40.0 mbar Water vapor tolerance at 60 Hz: 40.0 mbar Water vapor capacity at 50 Hz: 1,184 g/h Water vapor capacity at 60 Hz: 1,184 g/h Operating fluid volume min.: 1.7 l max.: 2.6 l Sound level according to DIN 45 635 without gas ballast: 57 db(A) with gas ballast: 59 db(A) Power connection: 3-phase, 200 / 200-240 / 380-400 V ±10%, 50 Hz Lhsdpfezgbvqsx Apmjk 3-phase, 200-240 / 380-480 V ±10%, 60 Hz Motor power: 2.2 kW Motor speed at 50 Hz: 1,430 min⁻¹ Motor speed at 60 Hz: 1,735 min⁻¹ Motor protection type: IP 55 Permissible ambient temperature: +12 to +40°C Weight: 73.0 kg Type: Trivac D 40 B Condition: used Scope of supply: (See picture) (Changes and errors in the technical data are subject to change!) We will be happy to answer any further questions you may have by telephone.

Condition: good (used), Year of construction: 2003, functionality: fully functional, MULLER MARTINI CONCEPT 6 F Web Offset Printing Machine for Label and Form Printing Manufacturer Müller Martini AG, Zofingen, Switzerland Lodpfx Aezl A R Hepmohk Production Year 2003 • number of Colours: 6 • counter: 59 mil. impressions • max print 515 mm • roll width 200 - 520 mm • speed max 300 m / min • unwinder roll diameter max 1270 mm • electromotoric roll lifting • BST EKR web edge regulation double-sided scanning • automatic ink roller washing • printing plate thickness 0.15 - 0.3 mm • plate bending machine • Technotrans Alpha d • alcohol dampening • Schinler printing unit tempering • paper web cooling • IST UV drying • 6 UV lamps • 6 ink mist extraction devices • perforation unit 2303 • roll - roll production • roll - fold • roll - sheet • printable material 50 - 180 fg/m2 •

Condition: excellent (used), Leybold Type: Trivac D 40 B The TRIVAC B series consists of oil-sealed vacuum pumps based on the rotary vane principle. The oil injected into the pumping chamber serves as a sealant, lubricant, and coolant. The pump housing is assembled from individual parts without sealing elements. These parts are connected with pins to ensure easy disassembly and reassembly. Ultimate pressure: 2 x 10⁻³ mbar Motor: 3-phase, 230/400 V, 50/60 Hz Pumping speed (50 Hz): 40 m³/h Pumping speed (60 Hz): 48 m³/h Environmentally friendly: Quiet Vibration-free operation, energy-saving Energy-saving: Low power consumption Lodpezianwjfx Apmjhk Low heat dissipation Modern vacuum technology: High pumping speed up to the ultimate pressure Low ultimate pressure, even with gas ballast High water vapor tolerance Continuous operation even at 1000 mbar Built-in oil pump, forced-lubricated plain bearings Minimal air intake High leak tightness (4He-compatible) Technical data: Product: TRIVAC D 40 B Connection flange, suction side: DN 40 ISO-KF Connection flange, pressure side: DN 40 ISO-KF Nominal pumping speed at 50 Hz: 46.0 m³/h Nominal pumping speed at 60 Hz: 55.0 m³/h Pumping speed at 50 Hz: 40.0 m³/h Pumping speed at 60 Hz: 48.0 m³/h Ultimate partial pressure without gas ballast: 1.0 x 10⁻⁴ mbar Ultimate total pressure without gas ballast: < 2.0 x 10⁻³ mbar Ultimate total pressure with gas ballast: < 5.0 x 10⁻³ mbar Water vapor tolerance at 50 Hz: 40.0 mbar Water vapor tolerance at 60 Hz: 40.0 mbar Water vapor capacity at 50 Hz: 1,184 g/h Water vapor capacity at 60 Hz: 1,184 g/h Operating fluid volume min.: 1.7 l max.: 2.6 l Sound level according to DIN 45 635 without gas ballast: 57 dB(A) with gas ballast: 59 dB(A) Mains connection: 3-phase, 200 / 200-240 / 380-400 V ±10%, 50 Hz 3-phase, 200-240 / 380-480 V ±10%, 60 Hz Motor power: 2.2 kW Motor speed at 50 Hz: 1,430 min⁻¹ Motor speed at 60 Hz: 1,735 min⁻¹ Motor protection class: IP 55 Permissible ambient temperature: +12 to +40°C Weight: 73.0 kg Condition: used Scope of delivery: (See picture) (Changes and errors in the technical data are subject to change!) We will gladly answer any further questions you may have over the phone.

Condition: used, loading space length: 40,520 mm, loading space width: 16,930 mm, loading space height: 14,390 mm, Year of construction: 2013, For inquiries regarding the vehicle, Mr. Seidel is available to assist you (by phone). Ackermann Z-VA-F 19/7.5 refrigerated box trailer with tail lift Tail lift: BÄR BC 2000S4-C4 (2,000 kg) | Cooling unit: Carrier Supra 950U | Additional work lights: left and right sides, rear of vehicle | Air suspension | BPW axles | Wabco ABS | Disc brakes | Spring-loaded brakes | Walk-through front door | Hydraulic supports front and rear | Reversing camera | Extendable drawbar | Cargo area dimensions: L 7,360 mm x W 2,500 mm x H 2,300 mm | Tyre tread: axle 1: 9-10 mm, axle 2: 7 mm On request, we can provide you with a leasing or financing offer. Mr. Seidel (phone) will be happy to assist you. For more information, please visit our website. Lhjdpeyfqi Eofx Apmek ... Subject to error, change, and prior sale! = Further Information = Please contact Tobias Ebert for further details.

Condition: used, Year of construction: 2001, functionality: fully functional, machine/vehicle number: 919, power of the servo motor: 750 W, input voltage: 400 V, type of input current: three-phase, feed length X-axis: 150 mm, feed length Y-axis: 100 mm, 8 C – JAM TC 138-EP-FC Automatic Pocket Setter with Brother Sewing Head (2001) CNC Controlled Automatic Pocket Setting Workstation for Jeans & Workwear Production Professional-grade JAM TC 138-EP-FC Automatic Pocket Setter equipped with a high-performance Brother automated sewing system. Manufactured by JAM s.r.l. (Italy), this fully integrated workstation is designed for automated folding and stitching of patch pockets used in jeans, workwear, jackets, and other garment applications requiring high productivity and repeatable quality. The machine combines programmable CNC-controlled sewing, automated pneumatic material handling, precision folding templates, and automatic positioning technology. The system is capable of folding and sewing pocket components with minimal operator intervention while maintaining consistent quality throughout long production runs. The unit was previously used in professional garment manufacturing and remained operational until factory shutdown. Technical Specifications • Manufacturer: JAM s.r.l. • Model: TC 138-EP-FC • Year of Manufacture: 2001 • Machine Number (Matricola): 919 • Reference Number: 8 C • Sewing Head: Brother Automated Sewing Unit • Control System: Brother BAS CNC Controller • Automation Platform: JAM System • Servo Motor Power: 750 W • Power Supply: 400 V, 3-Phase • Frequency: 50/60 Hz • Motor Speed: o 1390 rpm (50 Hz) o 1680 rpm (60 Hz) • X-Axis Feed Length: 150 mm • Y-Axis Feed Length: 100 mm • Pneumatic Supply Required Key Features • Fully automated pocket setting workstation • CNC-controlled programmable sewing system • Automated pocket folding and positioning • Pneumatic clamping and material handling • Fast pattern change capability • High repeatability and consistent stitch quality • Designed for continuous industrial production • Heavy-duty Italian automation platform • Integrated Brother sewing technology • Suitable for denim, workwear, and garment manufacturing Includes • JAM TC 138-EP-FC automated pocket setter • Brother automated sewing head • Brother BAS CNC control system • Dual control panel interface • Integrated pneumatic clamping system • Automated fabric handling system • Pocket folding templates and guides • Stainless steel workstation table • Industrial steel frame • Safety guards • Integrated workstation lighting • Pneumatic components and connections Applications • Automatic patch pocket attachment • Jeans pocket setting • Workwear pocket production • Chino and trouser pocket attachment • Garment component sewing • Reinforcement stitching • Label attachment operations • High-volume apparel manufacturing Condition • Fully functional • Operational prior to factory shutdown • Serviced on 27.02.2026 • Good industrial condition • Normal cosmetic wear consistent with production use • Available for inspection before dismantling Location Ljdpozgw Ebefx Apmshk Valga, Estonia Dismantling & Transport Buyer responsible for dismantling, loading, transportation, and all related costs. Professional dismantling is recommended due to the machine's CNC control system, pneumatic components, and calibration requirements. Sales Terms Sold as-is, where-is, without warranty. Part of the MASI Jeans factory liquidation.

Condition: used, Year of construction: 2007, Bystronic AFM EP 31-160 - CNC Press Brake Bending length: 3100 mm Capacity: 160 t - Cybelec DNC 880S CNC control - Laser safety device - Hydraulic crowning - Air bending - incl. many tools - incl. operating manual - Operating hours: 7266 - Bending cycles: 315673 - Year of manufacture: 2007 Technical data - Capacity: 160 t - Table length: 3150 mm - Work table width: 60 mm - Working height: 920 mm - Distance between side frames: 2450 mm - Overhang: 300 mm - Opening height: 465 mm - Number of cylinders: 2 - Stroke: 200 mm - Approach speed: 100 mm/s - Bending speed: 9.8 mm/s - Retraction speed: 95 mm/s - Tilting of the upper beam: +/- 13 mm - Crowning: Hydraulic Lsdpfx Apjziduzjmshk - Air bending: Yes - Adjustment of the upper tool: Manual - Adjustment of the die: Manual - Number of fingers on the ram: 2 - X-axis travel of the ram: 600 mm - X-axis movement: 600 mm - Min. X-axis movement speed: 400 mm/s - R-axis movement: 150 mm - R-axis traverse speed: 150 mm/s - Z1-Z2 movement: 2400 mm - Z1-Z2 traverse speed: Manual - Accuracy of the X-axis: 0.1 mm - Accuracy of the Y-axis: 0.01 mm - Accuracy R-Z1-Z2: 0.1 mm - Accuracy Z1-Z2: Manual - Above-floor installation: Yes - Machine dimensions WxHxD: 4100 x 2680 x 2200 mm - Motor power: 15 kW - Machine weight: 9400 kg

Condition: excellent (used), Year of construction: 1997, total length: 6,060 mm, total width: 2,440 mm, total height: 2,590 mm, Welfit Oddy ISO 20FT Tank Container 23,820L / 1-Compartment UN PORTABLE T11 Bottom discharge Steam heating 5-Year + CSC inspection valid until 09-2028 = Further Information = General Information Year of manufacture: May 1997 Lsdpezap R Rsfx Apmshk Model year: 1997 Suitable materials: Chemicals, construction water, fuel, waste water, and sewage Weights Tare weight: 3,820 kg Payload: 24,930 kg Gross vehicle weight: 36,000 kg Functional Interior capacity: 24,690 l Body manufacturer: Van Hool 24,690L TC, 2 compartments (12,290L/12,400L), L4BN, IMO1, T11 Number of compartments: 2 Condition Technical condition: very good Visual condition: very good Further Information Please contact Arne Honingh for further details.

Year of construction: 2009, condition: ready for operation (used), SCM surface planer offered. Working width: 520mm, cutter block diameter: 120mm, knife dimensions X/Y/Z: 520mm/35mm/3mm, max. speed: 5000rpm, max. depth of cut: 8mm, total jointer table length: 2750mm, infeed table length: approx. 1550mm, dust extraction port diameter: 120mm, machine dimensions X/Y/Z: approx. 2750mm/1415mm/1200mm, weight: 875kg. Inspection by appointment possible. Lsdpozl Enujfx Apmohk

Year of construction: 2018, condition: like new (used), Waelz piston blower Manufacturer: Leybold Type: RUVAC WH7000 Cat.-No.: 155163V Lhsdpfxsmdrhvo Apmsk Status: As good as new in original packaging Warranty: 12 months Delivery time: ex stock

Condition: refurbished (used), Year of construction: 2008, functionality: fully functional, Manufacturer refurbished, tested, and fully functional Leybold WSU 2001 H PFPE vacuum pump available for sale, with a 6-month warranty. Worldwide shipping available – request a quote! Ledpfxjyrr Ehj Apmjhk If you are looking for vacuum pumps, accessories, or any vacuum technology related equipment, please contact us. We are happy to assist you with purchasing, technical advice, or developing custom solutions.

Condition: ready for operation (used), Year of construction: 2007, The Vecoplan VAZ 2000 M F-T is a robust heavy-duty single-shaft shredder manufactured in 2007 for industrial recycling applications. Suitable for plastics, films, wood, paper, cardboard, EBS/RDF, and commercial waste. Formerly part of a production line for LDPE PCR film bales; the production line was modernized and rebuilt in 2024. Successful tests for processing used pallets and cardboard cores have been carried out. The processing of wood and cardboard cores is technically unproblematic. The machine condition has been documented by Vecoplan, and the required spare parts for recommissioning have already been ordered. The sale is due to an internal department closure and the associated restructuring of operational processes. Rotor length approx. 2,000 mm, hydraulic ram for uniform material feeding, flipper/airspring counter-knife system for high operational reliability, Torque/HiTorc drive for high torque and energy-efficient operation, replaceable reversible cutting inserts, suitable for both pre-shredding and secondary shredding, final particle sizes depending on screen and material approx. 10–250 mm, high throughput capacity, and robust, maintenance-friendly design. Inspection possible by appointment. Lsdpjy T Hbbjfx Apmohk

Condition: refurbished (used), functionality: fully functional, Refurbished Leybold Turbovac 1100 C (89480) Lhedpfx Aew Dnx Aopmek Offered in bulk sale: a fully refurbished unit of the Leybold Turbovac 1100 C (model 89480), accompanied by: 1 × Power Cable 1 × Turbo Controller – NT 20 (85720) We can provide worldwide shipping for buyers (please inquire price via message) These high-performance turbomolecular pumps are ideal for demanding vacuum applications in semiconductor manufacturing, coating systems, and analytical instrumentation. Refurbished by Vacuum Service Kft, each unit meets OEM specifications and is ready for deployment. In case you need vacuum pumps, components, or any vacuum-related items, please feel free to reach out to us! Key Features: Pumping Speed: Up to 1100 l/s Low vibration and noise operation Compact and clean design Includes controller and cable – ready to install Refurbished & tested by Vacuum Service Kft – Hungary

Condition: reconditioned (used), functionality: fully functional, Factory-refurbished Leybold Ruvac WS501 vacuum pump, with a full six-month warranty (with proper operation). We attached the user manuals, so you can check all neccessary informations. Lhjdpfx Apszfh Tmomek

Year of construction: 2011, condition: ready for operation (used), A complete bottle filling and capping line is available. Ring bowl diameter: 960mm, filling valve count: 24, capping stations (KK): 6, capping stations (SV): 6, capper diameter: 240mm, filler and capper pitch: 125mm, filling capacity (0.5l): 6000bottles/h, bottle volume: 330ml/500ml, operating hours: approx. 7200h. An on site inspection is possible. Lhjdpfeyhgnpjx Apmek

Year of construction: 2002, condition: used, Hard cover book line Consisting of Hard cover book line Kolbus BF526 Year: 2002 Description: Lhjdpfx Apszvfcyomjk - Semi automatic setting - Starfeeder - Pre-heater - Rounding and backing station - Glue unit - Gauzing station - Book mark suction device - Glue unit - Head and tail banding station - Pressing station - Casing-in station - Case infeed device - Case pre-stacking conveyor - Case bending station - Case forming station - Coldglue circulation pump Building in machine VBF EP 680 R Year: 2007 Description: - Right hand infeed - Delivery to the right Book stacker VBF BLSD 650 Year: 2007 - Straight delivery: Solema (2007)

Condition: excellent (used), Year of construction: 1997, total length: 6,060 mm, total width: 2,440 mm, total height: 2,590 mm, Welfit Oddy ISO 20FT Tank Container 23,820L / 1-compartment IMO-1 Bottom discharge Steam heating 5-Year CSC inspection valid until 09-2028 = Further Information = General Information Year of manufacture: May 1997 Model year: 1997 Suitable for: Chemicals, construction water, fuel, wastewater, and effluent Weights Tare weight: 3,860 kg Payload: 30,140 kg Gross weight: 34,000 kg Functional Compartment volume: 24,690 l Body make: Van Hool 24,690L TC, 2 compartments (12,290L/12,400L), L4BN, IMO1, T11 Number of compartments: 2 Condition Ledoyu Iggopfx Apmehk Technical condition: very good Visual condition: very good Further Information Please contact Arne Honingh for more details.

Condition: used, We are offering a used Leybold DRYVAC DV300 vacuum pump. Lodpfx Apsx I Nvdsmohk

Condition: used, Year of construction: 2009, functionality: fully functional, pressing force: 60 t, filling opening width: 1,000 mm, filling opening length: 1,450 mm, bale length: 1,800 mm, bale width: 1,100 mm, bale height: 750 mm, total width: 2,500 mm, total height: 3,500 mm, total length: 9,255 mm, overall weight: 14,000 kg, warranty duration: 12 months, transport height: 2,587 mm, transport width: 2,500 mm, transport length: 6,645 mm, Equipment: documentation/manual, For sale is a bale press, model EP 6000 V5, manufactured in 2009. Before delivery, the machine will be completely overhauled and technically refurbished by our qualified personnel. Our goal is to provide you with a reliable and immediately operational machine that meets the demands of daily operation. The overhaul includes, among other things, the following services: • Disassembly and inspection of relevant machine components • Evaluation of all wear-relevant components • Replacement or refurbishment of worn parts • Inspection and repair of the press ram and associated guide elements • Inspection and, if necessary, replacement of wear plates, sliding guides, and bearing points Lhedpfezgf Hgex Apmjk • Inspection of the press channel and restoration of the required tolerances • Overhaul of the hydraulic components, including cylinders, valve technology, and hydraulic hoses • Replacement of seals, wear parts, and connecting elements • Inspection of the electrical components and safety devices • Inspection and readjustment of the bale tying device • Cleaning, assembly, and commissioning of the overhauled system • Performance of functional and load tests after completion of the work Thanks to the comprehensive overhaul, you will receive a technically inspected machine with high operational reliability and a long service life. We would be happy to provide you with further information, photos, or a customized offer. If you are interested, we look forward to hearing from you.

Condition: not inspected (used), functionality: unexamined, Leybold Lhsdpswnm Siofx Apmsk Type: D8B No: 113 14 A9313000 5 8 For further data see the nameplate, device is untested.

Year of construction: 2023, operating hours: 20 h, condition: new, functionality: fully functional, machine/vehicle number: 201023, DICER MOD. F-36 HEAVY SERIES SOUNDPROOF DICER for granulating continuously extruded plastic sheets, for thermoplastic products. Maximum width of the sheet to be ground 350 mm and thickness 6 – 8 mm. HP 20 V. 400 Hz 50 motor Rotor in wear-resistant steel with high chromium content, multiple blades with 14 cuts and speed from 10 to 30 m/min. Transmission by belts Steel towing rollers with progressively variable trino speed and in accordance with the number of cuts. Size of the granule obtained 3 x 3 mm Pneumatic presser Base in solid steel structure Lhedpfjv Tadwsx Apmsk The machine is soundproofed Electrical panel in compliance with CE standards with remote control switch and safety micro. SPEED VARIATOR WITH INVERTER

Condition: excellent (used), Year of construction: 1997, total length: 6,060 mm, total width: 2,440 mm, total height: 2,590 mm, Welfit Oddy 20FT ISO Tank Container 23,950L / 1 compartment IMO-1 Bottom discharge Steam heating DIN 17440 1.4401 22T6 2.5Y-+ CSC inspection valid until 09-2028 = Further Information = General Information Year of manufacture: May 1997 Model year: 1997 Suitable materials: Chemicals, construction water, fuel, wastewater Lhedpfx Apsy Sxg Hemek Weights Tare weight: 3,840 kg Payload: 30,160 kg Gross weight: 34,000 kg Functional Cargo compartment volume: 24,690 l Body manufacturer: Van Hool 24,690L TC, 2 comp. (12,290L/12,400L), L4BN, IMO1, T11 Number of compartments: 2 Condition Technical condition: very good Visual condition: very good Further information Please contact Arne Honingh for more information.

Condition: used, empty load weight: 5,960 kg, maximum load weight: 12,040 kg, overall weight: 18,000 kg, axle configuration: 2 axles, first registration: 06/2005, loading space length: 6,900 mm, loading space width: 2,480 mm, loading space height: 2,340 mm, total length: 8,980 mm, total width: 2,600 mm, total height: 3,830 mm, suspension: air, tire size: 385/65R22.5, color: silver, mileage: 1,001 km, gearing type: other, driver cabin: other, Equipment: ABS, cooling unit, tail-lift, Vehicle location: Bovenden, 2 axles, MB axles (disc brakes), turntable, air-sprung, lifting + lowering, ABS (anti-lock braking system), lashing rails, extendable drawbar, side aluminum driving protection, aluminum tail lift, standing, diesel/electric cooling unit. Lhedswh Uhxopfx Apmek Construction: Wiedler refrigerated box with Thermo King SL 100 diesel/electric cooling unit and 2t tail lift BÄR type BC2000S4, reversing camera, disc brakes, all shock absorbers replaced, new front axle brakes on June 30, 2018 (brake pads & brake calipers), new air bellows on the front axle, all air tanks new! Cooling unit 16896 operating hours! Internal height 2.34 m, a thermal roller door is installed inside in front of the loading platform. ACCESSORIES INFORMATION WITHOUT GUARANTEE, subject to changes, prior sale and errors! - .

Condition: as good as new (ex-display), functionality: fully functional, TECHNICAL DATA: Technical characteristics NOVA F 520 Working width [mm] 520 Total length of tables [mm] 2750 Input table length [mm] 1550 Output table length [mm] 1200 Knife shaft diameter [mm] 120 Shaft speed rpm 5000 Knife dimensions (4 pcs) [mm] 35 x 3 x 520 Aluminum planer guide [mm] 1200 x 190 Planer guide inclination ° 90 - 45 Working table height from the floor [mm] 845 Exhaust connection diameter [mm] 120 Max. Removal [mm] 8 Engine power kW (HP) 5 (7) ----- Additional built-in options: * Spiral head "XYLENT" Ledpfx Apjqw Uyfomohk

Condition: used, Year of construction: 2014, We are selling a used Schmidt Keil Vario snow plough KLV 24, year of manufacture 2014. Scraper bars made of steel, 20 mm, with shock absorber strip and stabilizing spring. Adapter group for Multicar, Ausa, Leiber. Glide plates, splash guard, side deflector, plough lighting, marker lights. If you have any further questions regarding the equipment, please feel free to contact us. Storage location: 99428 Weimar. Lhsdpfsyq Awlox Apmjk