Used Treading Machine Pee-Wee - P10Cnc for sale (67,960)

Condition: excellent (used), Year of construction: 2018, thread length: 120 mm, overall weight: 2,200 kg, total height: 1,800 mm, total length: 1,800 mm, total width: 1,300 mm, Treading machine PEE-WEE - P10CNC MACH-ID 9816 Make: PEE-WEE Type: P10CNC YOP: 2018 Roll set M14 x 1 PPS Ø 180 x 54 hole x 40 width Roll set M14 x 1,50 Left PPS Ø 180 x 54 hole x 40 width Roll set M14 x 1,50 PPS Ø 180 x 54 hole x 40 width Roll set 1/4-28 UNF PPS Ø 180 x 54 hole x 40 width Roll set 1/4-28 UNJF PPS Ø 180 x 54 hole x 40 width Roll set 5/6-24 UNF PPS Ø 180 x 54 hole x 40 width Roll set 5/6-24 UNJF PPS Ø 180 x 54 hole x 40 width 1 set universal linear guider 120 mm 1 set steady rest for to heavy workpiece 1 set HM support length 40 mm for 1/4, 5/16 and M14 Rolls 2 x cabinet with tool drawlers and work bench Miniumum pressure: 1T Maximum pressure: 10T Max. workpiece: 40Ø Pedpfx Aasz Ha Hlszsrb Min. workpiece: 3Ø Min. Threading lenght:20mm Max. Threading length:120mm Shaft Ø: 54mm Length: 1800mm Width: 1300mm Height: 1800mm Weight: 2200kg Please Note: The information on this page has been obtained to the best of our ability and belief, and from the manufacturers where possible. It is given in good faith, but its accuracy can not be guaranteed. Accordingly, it will not form a representation or constitute contractual terms. We advise you to check any vital details!

Condition: excellent (used), Year of construction: 2013, XYZ 1630 SLX CNC Lathe Prodpfx Aez E R N Uoazeb New 2013. Swing 400mm x 760mm B.C. Spindle speeds & bore 150- 2500rpm & 54mm. C/w 3jaw chuck, quick change tool-post.

Year of construction: 2018, condition: used, machine/vehicle number: P18.0003, Rated power: 14.5 kW, speed range: 20-18,000 rpm, tool holder HKS-A63, 30-position tool changer, oscillating machining, controlled NC swivel milling head, machine weight: 2,200 kg, 1 steel drawer cabinet (gray), dimensions (W x H x D): approx. 80 x 120 x 80 cm, 8 drawers, filled with various accessories, 1 workbench, 1 with a sub-mounted steel drawer cabinet on the left, approx. 200 x 70 cm, 6 drawers, with contents. Predpfx Aaozqzadjzsb

Condition: used, Thread rolling machine, cold rolling machine, thread forming machine, profile rolling machine Manufacturer PEE-WEE, Type P 24 Q Serial No. LC2403099, Year of manufacture 2004 Pjdpjh A S Htjfx Aazjrb Rolling force, max. 24 tons Tool diameter, max. 200 mm Rolling spindle diameter 69.85 mm Tool bore diameter 70 mm (nominal diameter) Receiving length, tool length, max. 180 mm Workpiece diameter, max. 50 mm Rolling spindle speed 22 - 44 - 95 - 190 RPM Hydraulic motor power approx. 3 kW Rolling drive motor power 5.5 kW Mains connection 400 Volt, 50 Hz - Swiveling rolling spindle for thread through-rolling - Rolling spindle speed in 4 stages via gear change - Hydraulic system integrated in the machine bed Space requirement L x W x H 2000 x 1750 x 2550 mm Weight approx. 3 tons Good condition Plunge rollers: The thread rolling tools with the same pitch as the workpiece form the thread by penetrating the workpiece up to the nominal diameter. The thread length is a maximum as long as the rolling tools are wide. Through-rolling tools: If the thread length is greater than the rolling tool width. Through-rolling tools have 3 sections - the inlet, the calibrating section, and the outlet. Grooved rollers have no pitch and are swiveled with the helix angle of the profile to be rolled. Helix rollers differ from grooved rollers by having a pitch in the profile. The sum of the helix angle and the swivel angle results in the helix angle in the workpiece.

Condition: used, Thread Rolling Machine, Cold Rolling Machine, Thread Rolling Machine, Profile Rolling Machine Manufacturer: PEE-WEE Model: UPW 24 Serial No.: P07 Year of manufacture: 2007 Maximum rolling force: 24 tons Maximum tool diameter: 270 mm Roll spindle diameter: 69.85 mm Tool bore diameter: 70 mm (nominal diameter) Maximum tool/reception length: 180 mm Maximum workpiece diameter: 50 mm Hydraulic motor power: 3 kW Roll drive motor power: approx. 5.5 kW Electrical connection: 400 Volt, 50 Hz, 10 kW - Pivotable roll spindle for through-feed thread rolling - Roll spindle speed adjustable in 4 steps via gearbox shift - Hydraulic unit integrated in the machine base Podpfsuz If Njx Aazsrb - Operating manual with electrical schematic Space requirements (L x W x H): 2,000 x 1,450 x 1,900 mm Weight: approx. 3 tons Very good condition Plunge Rolling: The thread rolling tools, having the same pitch as the workpiece, form the thread by penetrating the workpiece up to the nominal diameter. The maximum thread length is limited to the width of the rolling dies. Through-feed Rolling: Used when the thread length is greater than the width of the rolling dies. Through-feed tools are divided into three sections – entry, calibration, and exit. Knurling rolls have no pitch and are swiveled at the lead angle corresponding to that of the profile to be rolled. Lead angle rolls differ from knurling rolls by having a pitch in the profile. The sum of the lead angle and swivel angle results in the effective lead angle in the workpiece.

Condition: excellent (used), Year of construction: 2006, functionality: fully functional, IN EXCELLENT CONDITION - ORIGINAL PAINTWORK XYZ SMX 3500 CNC TURRET MILL PROTO TRAK CONTROL 3 AXIS CONTROL TABLE SIZE 1370 X 356 MM TRAVELS - X 770 / Y AXIS 500 / Z 500 MM 40 TAPER SPINDLE QUILL DIA 100 MM AIR DRAW BAR Predoz Eh Egjpfx Aazeb SPINDLE SPEED 40 - 5000 RPM TABLE GUARDS WEIGHT 2.4 TONS THERE IS ONE TOOL IN THE SPINDLE THAT WILL GO WITH

Condition: excellent (used), Year of construction: 2022, 400mm swing, 220mm max diameter, 510mm cutting length, Siemens 828 Control, 65mm bar capacity, Psdpfxez Hatfj Aazerb 12 station turret, 17kW Spindle Motor, Spindle Speed 4000rpm, 3 jaw chuck, low volt light, coolant, Tool setter, swarf conveyor

Condition: good (used), Year of construction: 1973, pressure 0,5 - 10 t max. workpiece diameter 2 - 50 mm threading length 2000 mm pitch in mm 3 mm diameter of roll spindle taper 54 tool diameter 145 mm roll spindle turning speed range 41 - 129 U/min stroke 0 - 8 mm Prjdpozd Hhasfx Aazsb total power requirement 4,5 kW weight of the machine ca. 1,3 t dimensions of the machine ca. 1,3 x 1,2 x 1,2 m

Condition: used, Year of construction: 2006, number of axes: 3, working width: 1,250 mm, working length: 3,100 mm, TECHNICAL DETAILS Working area, X-axis: 3,100 mm Working area, Y-axis: 1,250 mm Max. panel thickness: 85 mm Number of controlled axes: 3 Drilling unit Number of drilling units: 1 Position of drilling unit: top Vertical drilling spindles: 7 Horizontal drilling spindles, X-direction: 2 Horizontal drilling spindles, Y-direction: 2 Total number of vertical and horizontal drilling spindles: 11 Milling unit Number of milling spindles: 1 Position of milling spindle: top Controlled axes: 3 Pedpfez En Afox Aazsrb Motor power: 9 kW Automatic tool changer: yes Grooving unit Number of grooving units: 1 Position of grooving unit: top Swivel positions: 0° / 90° Number of tool magazines: 1 Tool positions: 8 Position of tool magazine: machine side Number of work tables: 1 Table width: 3,100 mm Table length: 1,250 mm Table material: phenolic resin MACHINE DETAILS Number of vacuum pumps: 1 Suction capacity per pump: 250 m³/h Control system: PC Control Programming software: WoodWOP 5.0 EQUIPMENT Flat table design Nesting work table Vacuum pump Automatic tool changer Tool magazine positioned on the side Safety light barriers CE marking The machine is sold and delivered in its actual and legal condition ("as is, where is") based on photo documentation and technical/commercial documents with a descriptive nature. The buyer has the right to inspect the goods before collection and assumes responsibility for the installation, securing, and use of the machine at the destination. External reference: 6279

Condition: good (used), Year of construction: 2013, Traverses X Y Z: 1020 x 610 x 620mm, Table size 1200mm x 600mm, Pedpfx Aaez Eh Nljzjrb spindle speed 12000rpm, spindle motor power 14.7kW, Siemens 840DSL control with Shopmill, 43M/min rapids, Spindle taper BT40, 30 station ATC, through spindle coolant, swarf conveyor.

Condition: excellent (used), Year of construction: 2017, XYZ 2000 Turret Milling Machine (2017) (Ex College) 3 Axis Newhall DRO (X, Y & Knee) Spindle Taper R8 Spindle speeds to 500 – 4200 rev/min Table Size 1270 x 254mm Table Travel: X - 812mm Y - 406mm Knee Travel: Z - 406mm Quill Travel Z - 127mm Prjdpfx Ajxxb Rreazjb For sale with Jet Machinery Ltd Jet Machinery Stock No: #79047 Machine Serial Number: 12907 Cost: £9,950.00 + VAT Whilst every effort has been made to ensure that the above information is accurate it is not guaranteed. We advise prospective purchasers to check any vital details. Health and Safety At Work Act 1974: It is not reasonably practical for ourselves as suppliers to ensure that for your application the goods comply with requirements of the Act with respect to guarding etc. Prospective purchasers should ensure that a guarding specialist inspect the goods prior to use.

Condition: excellent (used), Year of construction: 2021, XYZ RMX 3500 3 Axis CNC Bed Milling Machine ProtoTRAK RMX Control YOM 2021 Spindle: 5HP – Programmable 40 – 5000rpm 2 Ranges 40 – 600 & 300 – 5000rpm ISO40 Quill Dia 105mm Table: 1370 x 355mm 4 0ff T Slots T Slot size 15.9mm Max load 600kgs Travel: X – 787mm Y – 508mm Head Vertical (Z) – 500mm Quill (Z) 127mm Dims without travel – 1905 x 2069 x 2225mm Dim with travel – 2758 x 2869 x 2490mm Weight 2430Kgs Power Requirements 22A Air Requirements 6bar Prjdpex D Tbmsfx Aazjb YOM 2021 For Sale with Jet Machinery Ltd Jet Machinery Stock Number: #78900 Machine Serial Number: RM310097 £35,000.00 + VAT Whilst every effort has been made to ensure that the above information is accurate it is not guaranteed. We advise prospective purchasers to check any vital details. Health and Safety At Work Act 1974: It is not reasonably practical for ourselves as suppliers to ensure that for your application the goods comply with requirements of the Act with respect to guarding etc. Prospective purchasers should ensure that a guarding specialist inspect the goods prior to use.

Year of construction: 1997, condition: ready for operation (used), Machine is fully refurbished & ready to work with dedicated inspection table ( size 2500 mm long x 850 mm width ), we have more if you need in your factory, price for two or more machine could be under negotiate. The large onion peeler from M&P engineering tops, tails and peels onions of 45mm to 115mm diameter using self adjusting floating knife assemblies over a range of up to 25mm on any one setting. It then slits the onion horizontally from top to tail, the depth of slit is determined by onion quality and grade. The machine finally removes the skin using compressed air providing an end product of optimum appearance. Pedpfxexcal Ae Aazjrb

Condition: used, Year of construction: 2008, XYZ SMX 5000 CNC Vertical Turret Milling Machine With Prototrak SMX Control Predpfjzvp E Eox Aazjb Table Dimension 1,930 x 355mm (4 'T' Slots). Maximum Table Load 850kg. Axis Travel 'X'=1,524mm, 'Y'=596mm, 'Z'=520mm. Quill Ø116mm. Quill Travel 127mm. Spindle Nose to Table 620mm. Spindle Centre To Column Face 520mm. Speed Range 40-5,000rpm (7.5kW Motor). Spindle Taper ISO40. Power Drawbar. S/No. 11100 (2008). With Coolant System, Table Guarding, Work Light, Vertex Heavy Duty Vice (Jaw Width 205mm), Indexing Head 3 Jaw Chuck 200mm, Centre Height 170mm, 8 Drawer Steel Cabinet With Contents Of Spindle Tooling & Clamp Sets. Approx Overall Dimensions L5,805 x W3,143 x H2,690mm. Weight 3,100kg. Note: Machine Had Control Upgrade 2023.

Condition: new, Thread rolling dies for various rolling machines, including UPW, UPWS, P10, P60, and ORT, with bores of 28 mm, 54 mm, 63 mm, 69 mm, 85 mm, 80 mm, 100 mm, and 110 mm. The dies can be ground to the desired thread profile. Predpfxozfybcs Aazob A list of available dies can be found in the image gallery. Price in EUR per set (2 pieces).

Condition: used, Year of construction: 2006, number of axes: 3, working width: 2,040 mm, working length: 3,680 mm, TECHNICAL DETAILS MACHINING PROCESS Machining process: Drilling and milling WORKING AREA X-axis working area: 3,680 mm Y-axis working area: 2,040 mm Number of working areas: 2 Number of controlled axes: 3 WORKTABLE Table type: Flat table / Nesting table Number of tables: 1 Table width: 3,680 mm Table length: 2,040 mm Table material: Aluminum DRILLING UNIT Number of drilling units: 1 Position of drilling unit: top Vertical drilling spindles: 7 Pjdpfoz Enz Uex Aazorb Horizontal drilling spindles, X-axis: 2 Horizontal drilling spindles, Y-axis: 2 Total number of drilling spindles: 11 MILLING SPINDLE Number of milling spindles: 1 Position of milling spindle: top Controlled axes: 3 Motor power: 13 kW Speed: 24,000 rpm Automatic tool changer: yes TOOL MAGAZINE Number of tool magazines: 1 Tool slots: 12 Tool magazine: positioned at the head VACUUM SYSTEM Number of vacuum pumps: 1 Suction capacity: 250 m³/h CONTROL AND SOFTWARE Control: PC-based control Programming software: Xylog Plus MACHINE DETAILS MAIN DRIVE Power of main electric spindle: 13 kW SAFETY CE marking: yes Protective guard: permanently mounted on the machine Safety system: front safety mats EQUIPMENT Aluminum nesting table Suction cups for workpiece clamping Vacuum pump Drilling unit with 11 drilling spindles Milling spindle with automatic tool changer Tool magazine with 12 tool slots PC-based control Programming software Xylog Plus Protective guard permanently mounted on the machine Front safety mats

Year of construction: 1997, condition: ready for operation (used), Machine is fully refurbished & ready to work, we have one more if you need 2 in your factory, price for two machine could be under negotiate. The large onion peeler from M&P engineering tops, tails and peels onions of 45mm to 115mm diameter using self adjusting floating knife assemblies over a range of up to 25mm on any one setting. It then slits the onion horizontally from top to tail, the depth of slit is determined by onion quality and grade. The machine finally removes the skin using compressed air providing an end product of optimum appearance. Prsdpfx Aasfn N U Hjzob

Condition: used, Year of construction: 2017, machine/vehicle number: STA00197, XYZ CT52 2 Axis CNC Lathe Box Ways Slides Siemens 828D CNC Control Swing over bed 400mm Max’ machining dia. 200 mm X-axis stroke 115mm Z-axis stroke 290mm Spindle speed 5000 rev /min Spindle Bore 61mm Max’ bar work dia. 52mm 12 Station VD130 Turret Tailstock stroke 90 mm Rapid traverse rate 20 m/min X & Z Axis Cutting Feed rate 10 m/min X & Z Axis Machine Weight 2500Kgs Machine Size 1700 x 1240mm Pedpfx Aaozkbirezsrb Manufactured 2017 Machine supplied with: 3 Jaw Chuck Power Chuck Tool Setting Probe Parts Catcher Chip Conveyor Auto Lubrication High Intensity Machine Light Toolbox For Sale With Jet Machinery Ltd Jet Machinery Stock Number:79265 Machine Serial Number: STA00197 £29,950.00 + VAT Whilst every effort has been made to ensure that the above information is accurate it is not guaranteed. We advise prospective purchasers to check any vital details. Health and Safety At Work Act 1974: It is not reasonably practical for ourselves as suppliers to ensure that for your application the goods comply with requirements of the Act with respect to guarding etc. Prospective purchasers should ensure that a guarding specialist inspect the goods prior to use.

Condition: excellent (used), Year of construction: 2020, 2020 Tederic D450/3200 Injection Moulding Machine Pjdpfx Aez E Rm Hjazsrb Closing force: 4500 kN. Diameter of center ring injection side: 200 mm. Diameter of center ring ejection side: 100 mm. Distance between the bars: 780 x 780 mm. Min mould height: 300 mm. Max mould height: 780 mm. Clearance between tables: 1580 mm. Capacity injection: 1741 cm3. Hydro Ejector: Yes. Quantity core pulling: 2. Turn on hours: 42864,1. Work hours: 16385,9. Motor: 56 kW. Heating power: 39 kW. Worm diameter: 75 mm. Ejector stroke: 200 mm. Machine S/No: T3045-0141. Robot: 2018 SW7315DS. Note: The auction includes the injection molding machine and the robot, but does not include other equipment visible in the photos, such as plastic feeders and temperature controllers for heated channels visible in the attached photos, as well as conveyor belts and safety fences.

Condition: excellent (used), Year of construction: 2018, 2018 Fanuc Robodrill D21MIB5 Twin Robot Machining Cell with (2) Fanuc Series 31I-Model B5 CNC Controls Cell Comprising: Twin Fanuc Robodrill Type A04B-0104-B181 Vertical Milling & Drilling Machining Centres (S/Nos. P186ZG729 & P186ZG731). Table Size Approx 650mm x 400mm. Travel: 'X' Approx 500mm, 'Y' Approx 400mm, 'Z' Approx 330mm. Max Table Load 300kg. Number of Tool Pockets 21. Max Tool Length 250mm, Max Tool Weight 3kg. BT30 Spindle Taper. Max Spindle Speeds 10,000 RPM. Nikken TAT-170N (2018) Pneumatically Operated Rotary Support Table with 4th Axis Fanuc DDRiB-104-B181STD. ABB Flexloader SC3000XL Extended Conveyor Loading System (S/No. M180057-1) with Fanuc ABB 6 Axis Robot IRB 4600 & Fanuc ABB 6 Axis Feeder Robot IRB 1200 with Schunk Grab. Feed In/Feed Out Belt Conveyors. ABB Flexloader Vision. FSE E7326 Filtration, 950 Litre Capacity Coolant & Swarf Management System. Andreas Maier AMF 6906/61919 Hydraulic Equipment. This Cell Includes: Euro 250 Bowl Feeder on Stand with CVIC Digital Control. Desoutter ECS16-M20 Current Controlled Screwdriver. Robot Pendant ABB DSQC 679. Signal Tower Lights. Transformers. Weight of each Machining Centre Approx 2,400kg. Floor Space Required for Full Cell Approx 8,000mm x 6,500mm. 3 Phase Power Supply, 415 Volt. Fixtures Not Included. Swarf Bins Not Included. Viewing Recommended. Prjdpfx Aoz E Sbreazob

Condition: ready for operation (used), Year of construction: 2004, functionality: fully functional, machine/vehicle number: 00049781, workpiece diameter (max.): 50 mm, spindle diameter: 69 mm, spindle speed (max.): 5,000 rpm, stroke length: 130 mm, roll spacing: 255 mm, TECHNICAL DETAILS Contact surface: 180 mm Workpiece diameter: 4 - 50 mm Rolling pressure (infinitely variable): 0-200 kN Feed (infinitely variable): 0-50 mm/s Rolling cycles per minute: 0-86 Rolling spindles Rolling spindle diameter: 69.85 mm Distance between rolling spindles: 125 - 255 mm Spindle mounting length: 160 mm Traverse of the rolling spindle slide: 130 mm Rolling spindle speed: 3000-5000 rpm Rolling tool diameter: 130 - 200 mm Machine bed height: 800 mm Height of rolling spindle above machine bed: 160 mm Pedpfx Aajxbfwzjzerb MACHINE DETAILS Control system: SIEMENS SIMATIC C7 Voltage: 400 V, 50 Hz Dimensions & Weight Machine height: 1,600 mm Weight: 2,400 kg

Condition: used, Donau DR52 Drilling capacity in steel (diameter) 52 mm Arm length 1140 mm Prodpfxez D U Tze Aazob Workpiece height max. 830 mm Drilling capacity in cast iron 60 mm Taper MK 5 Table size 1100 x 620 mm Drilling spindle stroke 225 mm Spindle speed range 28 - 1400 rpm Feed rate 0.1 - 0.5 mm/rev Total power consumption 10.0 kW Machine weight approx. 3.5 t Machine dimensions approx. 2.4 x 1.3 x 2.61 m

Condition: excellent (used), Year of construction: 2019, XYZ UMC-5X 5 Axis CNC Vertical Machining Centre Heidenhain iTNC 640 HSCI Control Model UMC-5X Control Heidenhain iTNC 640 HSCI X Axis Travel 600 mm Y Axis Travel 600 mm Z Axis Travel 500 mm A Axis Travel +120° / -120° C Axis Travel 360° Table Size 600 mm Diameter Maximum Table Load 600 kg Spindle Speed 24,000 rpm Direct Drive Spindle Taper BBT40 Rapid Traverse 36 m/min Feed Rate 1 - 36,000 mm/min Tool Changer 60 Station Automatic Maximum Tool Length 300 mm Through Spindle Coolant 70 Bar Machine Weight 9,500 kg Machine Fitted With: Heidenhain iTNC 640 HSCI CNC Control, 24,000 rpm Direct Drive High Speed Spindle (20kW S6 Rated), 60 Station Automatic Tool Changer, 70 Bar Through Spindle Coolant, Fixed Roof for High Pressure Coolant System, Renishaw RMP600 Strain Gauge Wireless Workpiece Probe, Laser Tool Setting System, Kinematic High Accuracy Machine Setup, Kinematic Reference Ball, Thermal Spindle Compensation, Linear Scales on X, Y & Z Axes, Direct Drive C Axis Rotary Table, Swarf Conveyor & Bin. Features: Simultaneous 5 Axis Machining Centre, Gantry Frame Construction, Direct Drive High Torque Rotary Table, High Precision Linear Roller Guideways, Dynamic Collision Monitoring, High Accuracy Machine with Linear Scales, Ideal for Aerospace, Medical, Precision Engineering & Complex Multi-Sided Components. Podozi Awhjpfx Aazerb For sale with Jet Machinery Ltd Jet Machinery Stock No: TBC Machine Serial Number: TBC Cost: £120,000.00 Whilst every effort has been made to ensure that the above information is accurate it is not guaranteed. We advise prospective purchasers to inspect the machine prior to purchase. Whilst every effort has been made to ensure that the above information is accurate it is not guaranteed. We advise prospective purchasers to check any vital details. Health and Safety At Work Act 1974: It is not reasonably practical for ourselves as suppliers to ensure that for your application the goods comply with requirements of the Act with respect to guarding etc. Prospective purchasers should ensure that a guarding specialist inspect the goods prior to use.

Condition: ready for operation (used), Year of construction: 2008, functionality: fully functional, turning length: 1,750 mm, spindle bore: 104 mm, spindle speed (max.): 1,800 rpm, type of input current: three-phase, Model:Prototurn 555 Swing Over Bed:560mm Distance Between Centres:1750mm Control: Prototrak SLX Spindle Speeds: To 1800 RPM Spindle Bore:104mm With: 300mm 3 Jaw Chuck Fixed Roller Steady Quick Change Toolpost Toolpost Holders Dimensions: 3940 x 2250 x 1910mm high Prsdpfxjzrnkrj Aazjb Weight: 4100 Kgs

Condition: used, Year of construction: 2011, 2011ARBURG 370 S 500-100 CNC Injection Moulding Machine S/No: 218960. Clamping force: 50 t. Clearance between tie bars: 370x370 mm. Max. platen dimensions: 510x510 mm. Screw diameter: 30 mm. Shot weight: 65 g. Injection pressure: 1390 bar. Shot volume: 71 cc. Operating voltage: 400 V, 3~, 50 Hz. Control voltage: 230 V~, 50 Hz. DC control voltage: 24 V. Nominal motor current / heating: 58 / 13 A. Total rated current: 71 A. Total connected load: 42 kW Prodpfez E Ry Tex Aazjb