Used Marking Table for sale (21,220)

Condition: good (used), Included in the scope of delivery: 01x Workbench, used Subframe dimensions: approx. 1,340 x 700 mm Height to top edge of worktop: approx. 938 mm Worktop dimensions: approx. 1,400 x 1,000 mm Material thickness: approx. 38 mm Comprising the following for EACH unit: 02 x Workbench stands, used Manufacturer: Dexion Type: P 90 Material color: sendzimir galvanized Profile dimension: 100 mm Including cross and diagonal braces, base plates The stands are pre-assembled (bolted truss construction) 900 mm high 700 mm deep 04 x Workbench beams, used Racking system: Dexion Type: Speedlock P90 Material color: sendzimir galvanized Box profile: 89 x 50 mm Beam type: SLO089|2 Clear span: 1,140 mm 08 x Dexion safety pins, used Type: Speedlock P90 Material color: sendzimir galvanized Head Ø: 13.58 mm Cjdpfxex Itdle Aptshb Pin Ø: 5.92 mm Weight per piece: 0.018 kg Chipboard panels, 2nd grade, used Thickness: 38 mm Dimensions: 01x 1,400 x 1,000 mm 01x 1,120 x 700 mm Surface: possibly coated (single piece) 08 x Wing screws with countersunk head, new Dimensions: 6.3 x 70 mm Note: - Workbenches are picked unassembled; - Workbench stands are pre-assembled; - The production lead time is usually approx. 3 - 5 working days. Your contacts in our company: Mr. Andre Evering Mr. Mario Klöver Mr. Falk Deutsch General information about the item: This item is only available for collection. If shipping or further transport is required, additional costs will apply, which can be individually requested from us depending on the delivery location and scope.

Condition: new, Year of construction: 2026, CORMAK MJ45-KB4 - 2000 Panel Saw with Scoring Unit The CORMAK MJ45-KB4 - 2000 is a professional panel saw with a scoring unit, designed for precise woodworking in professional woodworking shops, production facilities, and service workshops. The machine combines industrial-level performance with the cutting accuracy required for processing furniture boards, MDF, and plywood. Its stable construction, independent scoring blade drive, and carefully engineered guiding systems ensure repeatability and cutting quality at an industrial level. Main Advantages of the Machine 2000 mm aluminium sliding table – ensures smooth movement and precise material guidance. Independent 0.75 kW scoring motor – eliminates chipping and tearing on the underside of the material. Powerful main saw motor – 5.5 kW (9 HP) motor provides efficient cutting performance in hard materials. Stable cast iron construction – resistant to vibrations, improving precision and operator safety. Telescopic support arm with ruler and two stops – enables accurate positioning of the workpiece. Cutting width up to 1250 mm – ideal for formatting large panels. Ergonomic adjustment knobs for blade angle and height – allow fast tool-free setup. Construction and Technology The MJ45-KB4 - 2000 is based on a heavy cast iron body, providing excellent resistance to twisting and maintaining stable geometry throughout years of operation. Cedpfx Apetz Sm Astohb The cutting unit operates inside a rigid housing, which reduces vibrations and increases blade durability. The sliding table guidance system is based on hardened steel rods and precision linear bearings, ensuring smooth movement and eliminating play during cutting. The machine is also equipped with a roller support table, making it easier to handle large-format materials. Precision and Work Efficiency Thanks to high blade speeds of up to 6000 rpm and a precise guiding system, the MJ45-KB4 panel saw provides perfectly straight and clean cutting edges, even when processing layered panels. The scoring blade, rotating at 8000 rpm, effectively eliminates laminate chipping and tearing. The adjustable cutting angle range of 0–45° allows the operator to perform complex formatting operations with full control. Applications The MJ45-KB4 - 2000 panel saw with scoring unit is designed for intensive use in: woodworking workshops, furniture manufacturing plants, prototype production departments, architectural and model-making studios. It is ideal for processing: MDF boards, HDF boards, OSB panels, plywood, laminates, solid wood. The machine design allows quick setup changes and efficient production of both short series and individual projects without compromising quality. Standard Equipment 2000 mm aluminium sliding table Independently driven 0.75 kW scoring unit Telescopic support arm with ruler and two stops Roller support table Folding parallel fence Telescopic rip fence Adjustment knobs for blade angle and height Technical Specifications Parameter Value Sliding table length 2000 mm Cutting width 1250 mm Saw blade tilt range 0–45° Maximum cutting height at 90° 80 mm Maximum cutting height at 45° 56 mm Maximum main blade diameter 315 mm Maximum scoring blade diameter 125 mm Main saw speed 4000 / 6000 rpm Scoring blade speed 8000 rpm Main motor power S1/S6 5.5 kW / 9 HP Scoring motor power S1/S6 0.75 kW / 1.2 HP Weight 460 kg

Condition: new, Year of construction: 2026, CORMAK MJ45-KB4 - 1600 Panel Saw with Scoring Unit The CORMAK MJ45-KB4 - 1600 is a professional panel saw with a scoring unit, designed for precise woodworking in carpentry workshops, production facilities, and service workshops. The machine combines industrial performance with the cutting accuracy required for processing furniture boards, MDF, and plywood. Its stable construction, independent scoring blade drive, and carefully engineered guiding systems ensure repeatability and industrial-level cutting quality. Main Advantages of the Machine 1600 mm aluminium sliding table – ensures smooth movement and precise guidance of the workpiece. Independent 0.75 kW scoring motor – eliminates the risk of chipping and tearing on the underside of the material. Powerful main saw motor – 5.5 kW (9 HP) motor provides efficient cutting performance even in hard materials. Stable cast iron construction – resistant to vibrations, improving precision and operational safety. Telescopic support arm with ruler and two stops – enables accurate positioning of the workpiece. Cutting width up to 1250 mm – ideal for formatting large panels. Ergonomic blade height and angle adjustment knobs – allow quick and tool-free setup. Construction and Technology The MJ45-KB4 - 1600 is built on a heavy cast iron body, providing high resistance to twisting and maintaining stable geometry throughout years of operation. The cutting unit operates inside a rigid housing, which reduces vibrations and increases blade durability. The sliding table guidance system is based on hardened steel rods and precision linear bearings, ensuring smooth movement and eliminating play during cutting. The machine is also equipped with a roller support table, making it easier to handle large-format materials. Precision and Work Efficiency Thanks to high blade speeds of up to 6000 rpm and a precise guiding system, the MJ45-KB4 panel saw provides perfectly straight and clean cutting edges, even when processing layered boards. The scoring blade, rotating at 8000 rpm, effectively eliminates laminate chipping and tearing. The adjustable cutting angle range of 0–45° allows complex formatting operations to be carried out with full control and accuracy. Applications The MJ45-KB4 - 1600 panel saw with scoring unit is designed for intensive use in: woodworking workshops, furniture manufacturing plants, prototype departments, architectural and model-making studios. It is ideal for processing: MDF boards, HDF boards, OSB panels, plywood, laminates, solid wood. The machine design enables quick setup changes and efficient production of both short series and individual projects without compromising quality. Standard Equipment 1600 mm aluminium sliding table Chjdstz Srlopfx Aptsb Independently driven 0.75 kW scoring unit Telescopic support arm with ruler and two stops Roller support table Folding parallel fence Telescopic rip fence Adjustment knobs for blade angle and height Technical Specifications Parameter Value Sliding table length 1600 mm Cutting width 1250 mm Saw blade tilt range 0–45° Cutting height at 90° 80 mm Cutting height at 45° 56 mm Maximum main blade diameter 315 mm Maximum scoring blade diameter 125 mm Main saw speed 4000 / 6000 rpm Scoring blade speed 8000 rpm Main motor power (S1/S6) 5.5 kW / 9 HP Scoring motor power (S1/S6) 0.75 kW / 1.2 HP Machine weight 460 kg

Condition: ready for operation (used), agnetic table, magnetic work table, used machine Overall dimensions: Chsdpfx Apsu T H Nnetjb Length: 1500 mm Width: 500 mm Height: 80 mm Weight: 420 kg Electrical specifications: 55V DC

Condition: new, Year of construction: 2026, functionality: fully functional, CORMAK 800x500 mm Layout Workbench Cjdpfx Apsvugu Ejtohb The CORMAK 800x500 mm layout workbench is a solid and functional solution designed for professionals involved in precision tapping operations. It is perfectly compatible with electric tapping machines and tapping arms, ensuring stability and comfortable operation in every industrial workshop. Its construction has been designed for intensive use, offering excellent quality, ergonomics, and user convenience. Thanks to innovative design solutions, the workbench enables efficient tapping processes while ensuring high precision and reliability for many years of operation. Main advantages of the CORMAK 800x500 mm layout workbench High precision: The workbench is equipped with T-slots spaced 152 mm apart, allowing accurate tool positioning and providing ideal conditions for precise tapping operations. Solid construction: Made of durable materials, the workbench ensures stability and long-term reliability during intensive use, which is essential when working with electric tapping machines and tapping units. Ergonomics and working comfort: The table provides an optimal working height of 760 mm and a spacious tabletop measuring 800 × 500 mm, ensuring comfortable operation and reducing operator fatigue during long tapping processes. Mobility: Equipped with lockable wheels, the workbench can be easily moved around the workshop, allowing flexible adjustment of the working area according to current needs. Functionality: The integrated tool cabinet provides quick access to necessary accessories, improving workflow efficiency and speeding up tapping operations. Design and technology of the CORMAK 800x500 mm layout workbench The CORMAK 800x500 mm layout workbench has been designed with durability and precision in mind. The tabletop, manufactured from materials resistant to intensive use, provides excellent rigidity and stability during operation with tapping machines and electric tapping units. T-slots with dimensions of 3 × 14 mm and a spacing of 152 mm allow secure and precise tool positioning, resulting in high-quality threaded holes. The workbench construction ensures full functionality, enabling convenient handling of workpieces of various sizes. The workbench is equipped with a practical tool cabinet that allows quick storage of accessories, improving workplace organization. Built-in lockable wheels provide mobility, allowing easy movement around the workshop while maintaining stability during tapping operations. Standard equipment of the CORMAK 800x500 mm workbench Tool cabinet: Provides convenient storage of accessories, improving organization and working comfort. Lockable wheels: Allow easy movement around the workshop while ensuring mobility and flexibility. Worktop: Dimensions of 800 × 500 mm and thickness of 50 mm provide excellent rigidity and sufficient workspace for various materials. T-slots: Enable precise positioning and guidance of layout and machining tools. Technical specifications of the CORMAK 800x500 mm layout workbench Parameter Value Tabletop dimensions 800 × 500 mm Table height 760 mm Tabletop thickness 50 mm

Condition: new, Year of construction: 2026, functionality: fully functional, CORMAK 900x600 mm Layout Workbench The CORMAK 900x600 mm layout workbench is a solid and versatile solution designed for precision tapping and material processing in professional workshops. It is an ideal accessory for electric tapping machines, enabling convenient and efficient operation. Thanks to its specially designed construction, the workbench provides stability, comfort, and precise working conditions for tapping operations, making it an essential tool in industrial plants and professional workshops. Main advantages of the CORMAK 900x600 mm layout workbench Dedicated mounting holes for a tapping arm: The workbench is equipped with special mounting holes that allow easy and stable installation of a tapping arm, significantly improving precision and efficiency during thread machining operations. High-precision T-slots: The workbench features 3 × 14 mm T-slots with a spacing of 152 mm, ensuring secure guidance of layout tools and allowing safe and accurate positioning of the tapping machine during operation. Chsdpevugwgefx Aptjb Well-designed construction: The ground tabletop provides a flat, durable working surface resistant to intensive use, ensuring long-term performance and reliability. Practical tool cabinets: The workbench is equipped with two spacious tool cabinets, allowing convenient storage of accessories near the workstation, improving organization and user comfort. High mobility: The workbench is fitted with lockable wheels, allowing easy movement around the workshop and flexible adjustment of the workspace according to current requirements. Design and technology of the CORMAK 900x600 mm layout workbench The CORMAK 900x600 mm layout workbench features a robust construction designed for intensive operation in demanding industrial environments. The tabletop, measuring 900 × 600 mm and 50 mm thick, provides a stable and spacious working surface suitable for processing various materials. The 3 × 14 mm T-slots with 152 mm spacing enable precise guidance of layout tools, contributing to excellent quality and accuracy of performed tapping operations. The workbench is also equipped with two functional tool cabinets, allowing convenient storage of accessories such as tapping machines, auxiliary tools, and other equipment necessary for daily operation. This ensures that all essential tools are always within reach, improving workflow and increasing efficiency during tapping processes. Standard equipment of the CORMAK 900x600 mm workbench Tool cabinets: Convenient storage of accessories such as tapping machines and auxiliary tools near the workstation. Lockable wheels: Allow easy movement around the workshop while ensuring stability during operation. T-slots: Precisely designed 3 × 14 mm slots enable accurate positioning and guidance of layout tools. Worktop: Dimensions of 900 × 600 mm and thickness of 50 mm provide sufficient workspace and excellent stability during operation. Technical specifications of the CORMAK 900x600 mm layout workbench Parameter Value Tabletop dimensions 900 × 600 mm Table height 780 mm Tabletop thickness 50 mm

Condition: used, Universal milling machine table, angle table, setup angle, clamping table, presumed MAHO make T-slot table, add-on table for universal tool milling machine Table no.: 76-400-1 / 2210 05 00 Table size: 700 x 330 mm Overall height: 210 mm T-slot width: 12 mm T-slot pitch: 45 mm - Table plate with 7x T-slots, 12 mm each - Mounting surface 90°, 13 mm diameter holes, 14 mm elongated holes for fastening and 12 mm guide slot - Hole spacing, top mounting plate Ø 13 mm = 500 mm, 50 mm from the table surface (measured at center) - Hole spacing, middle mounting plate Ø 13 mm = 472 mm, 95 mm from the table surface (measured at center) - Elongated hole spacing, middle mounting plate = 475 mm, 140 mm from the table surface (measured at center) - Elongated hole spacing, bottom mounting plate = 475 mm, 185 mm from the table surface (measured at center) Dimensions (L x W x H): 820 x 330 x 210 mm Weight: 61 kg Cedpfexy Styjx Aptshb In good condition

Condition: used, Discharge take-off table: - total length 7850 mm Chodpfxoxuiq Eo Aptob - total width 1200 mm - four upper hold-downs - prism guide 70 mm - hydraulic feed

Year of construction: 2026, condition: new, functionality: fully functional, overall weight: 100 kg, total length: 800 mm, total width: 600 mm, total height: 1,660 mm, input voltage: 230 V, input frequency: 50 Hz, laser power: 20 W, laser wavelength: 1,064 nm, type of cooling: air, laser type: fiber laser, The universal laser marking system LAS 28 from Systemtechnik Hölzer GmbH can be used for a very wide range of marking applications. With the integrated fiber laser you can mark almost all materials such as steel, carbide, aluminum and plastics. Depending on the requirements, the system can be equipped with a 20, 30 or 50 watt fiber laser. For permanent marking, the use of the laser is necessary in many industries. With the powerful laser software, texts, numbers, 2D codes, QR codes and logos can be realized with just a few clicks without extensive programming knowledge. Serial and article numbers are automatically incremented by the software after prior setting. In addition, the software can read data (variable information such as drawing numbers, project designations, etc.) from existing tables and automatically transfer them to predefined areas. The use of a hand scanner is also possible. The standard equipment includes a laptop incl. holder with Windows operating system. Optionally, the laser model LAS 28 can be equipped with a rotary axis (3-jaw chuck) for marking cylindrical parts. Further options, such as lateral extensions for marking long parts, can be realized. Made in Germany Cedpfxsv Sybys Aptshb - Fiber laser 20W (Optional: 30W, 50W) - Wavelength 1064nm - marking field size 150x150mm (optional: 200x200) - optional: rotary axis (3-jaw chuck) - optional: digital height measuring system - optional: exhaust system (incl. activated carbon filter) - optional: Autofocus system - signal light for indication of operating status - marking software EZCAD (optional additional laser software) - Pilot laser (simple preview, contour preview) - focus finder (simple focus adjustment) - max. part height approx. 270mm - electrically adjustable Z-axis (adjustment of working plane) - frame made of aluminum profile - connection 230V - air cooled - Laptop with Windows operating system - dimensions: 800x 600 x 1660mm (LxWxH) - weight: approx. 80 Kg

Condition: new, Year of construction: 2026, functionality: fully functional, Cross table with precisely ground cast iron work surface. Equipped with T-slots which allow for workpiece fixture. Intended for processing, milling and drilling while preserving high precision due to a very accurate 0.02 mm vernier. Cjdpfevu Tnxsx Aptehb Technical data Vice size 125 mm Base size 200×270 mm Table size 475×154 mm Transverse feed 150 mm Longitudinal feed 320 mm Vernier 0.02 mm Groove width 16 mm Screw spacing 175 mm Total dimensions 772×440×180 mm Weight 28 kg

Condition: new, Year of construction: 2026, functionality: fully functional, Precision cross table with screw protection cover Chodpfxjvu Tqyj Apteb A precision cross table equipped with a screw protection cover. The sliding guides, manufactured using a dovetail design, significantly improve table rigidity and allow for effective elimination of play in the feed movements. Cross table description The cross table is manufactured from high-quality materials, ensuring durability and reliable operation. It is an ideal accessory for drilling machines, milling machines, and similar equipment, providing precise positioning during boring and drilling operations. The screw protection cover prevents chips and debris from entering the feed mechanism. An additional advantage of the table is the integrated scale, which allows constant monitoring of the table position along the X and Y axes. Vernier scale: 2.0 mm / 0.01 mm

Condition: new, Year of construction: 2026, functionality: fully functional, 600x240 mm Cross Table Csdjvu Trwopfx Aptshb Precise cross table with a screw guard, dovetail-shaped slide guides greatly improve table rigidity and prevent feed wiggling. Table description Cross table is well-made from high-quality materials Supports working with drilling, milling machines, etc., providing perfect positioning during machining processes Screw guard protects the feed mechanism from chips An additional benefit of the table is the pitch which provides a preview of the X,Y axes position of the table 4 mm/0.02 mm vernier

Condition: new, functionality: fully functional, overall weight: 100 kg, total height: 1,660 mm, Year of construction: 2025, input voltage: 230 V, laser power: 20 W, laser wavelength: 1,064 nm, type of cooling: air, type of input current: AC, The universal laser marking system LAS 28 from Systemtechnik Hölzer GmbH can be used for a very wide range of marking applications. With the integrated fiber laser you can mark almost all materials such as steel, carbide, aluminum and plastics. Depending on the requirements, the system can be equipped with a 20, 30 or 50 watt fiber laser. For permanent marking, the use of the laser is necessary in many industries. With the powerful laser software, texts, numbers, 2D codes, QR codes and logos can be realized with just a few clicks without extensive programming knowledge. Serial and article numbers are automatically incremented by the software after prior setting. In addition, the software can read data (variable information such as drawing numbers, project designations, etc.) from existing tables and automatically transfer them to predefined areas. The use of a hand scanner is also possible. The standard equipment includes a laptop incl. holder with Windows operating system. Optionally, the laser model LAS 28 can be equipped with a rotary axis (3-jaw chuck) for marking cylindrical parts. Further options, such as lateral extensions for marking long parts, can be realized. Made in Germany - Fiber laser 20W (Optional: 30W, 50W) - Wavelength 1064nm - marking field size 150x150mm (optional: 200x200) - optional: rotary axis (3-jaw chuck) - optional: digital height measuring system - optional: exhaust system (incl. activated carbon filter) - optional: Autofocus system - signal light for indication of operating status Cjdpfjwkpwajx Aptjhb - marking software EZCAD (optional additional laser software) - Pilot laser (simple preview, contour preview) - focus finder (simple focus adjustment) - max. part height approx. 270mm - electrically adjustable Z-axis (adjustment of working plane) - frame made of aluminum profile - connection 230V - air cooled - Laptop with Windows operating system - dimensions: 800x 600 x 1660mm (LxWxH) - weight: approx. 80 Kg

Condition: used, Year of construction: 2009, spindle diameter 125 mm x-travel 1.500 mm y-travel 1.250 mm z-travel 1.000 mm w-travel 550 mm table surface area 1.000 x 1.250 mm workpiece weight 6.000 kg quill stroke 550 mm tool taper ISO 50 number of spindle speeds 5-3.700 U/min. max. torque 2012 Nm feed speeds 1-6000 (x-Achse) mm/min feed speeds 1-6000 (y-Achse) mm/min feed speeds 1-6000 (z-Achse) mm/min rapid traverse x/y/z 15/ 15/ 15 m/min Cedpswdta Ejfx Aptehb dimensions of the machine ca. 7,51 x 5,07 x 3,33 m 63 kVA Equipment/ Accessories: - CNC control Siemens 840 D - 60 ATC - Coolant system with high-pressure pump 30 l/min.- 20 bar - documentation

Condition: used, Year of construction: 2012, Motor: 0.75 kW Technical data: see illustration. Chedpfx Apjxcty Tjteb

Condition: good (used), Year of construction: 2012, Motor: 1.1 kW Cedpfexbgg Rox Aptohb For technical data, see illustration.

Condition: as good as new (ex-display), Year of construction: 2021, - Stationary scissor lift table with single scissors Csdpfoxazzyex Aptjhb - Steel perforated grid plate System 16 - Platform size: 2000x1000x100 mm - Hole spacing: 50 mm - Hole diameter: 16 mm - 360-degree rotary platform beneath the grid plate - Grid system with 4 stops every 90 degrees - Lift up/down operated by a hand control with 3 m cable - Battery-hydraulic drive - Load capacity: 700 kg - Construction height: 670 +/- 60 mm - Useful lift: 700 mm - Maximum height: 1370 +/- 60 mm - Own weight: approx. 810 kg - Stationary version with 4 base plates.

Condition: new, table length 4000 mm table width 2000 mm table height 850 mm Vertikal stroke 50 mm weight of the machine ca. 2,5 t dimensions 4,0 x 2,0 x 0,9 m Welding table "SIGMUND Professional 750 + Plasma-nitrided" is made of high quality steel S355J2 + N and is plasma nitrided. Surface hardness max. 750 Vickers. The table has a material thickness of approx. 24.5-27mm. The holes have a diameter of 28mm. Chedpfx Apekuculstsb Hole arrangement in 100 mm grid on the table top parallel hole arrangement in 50 mm grid on the sides. Incl. Foot basic equipment. Pictured accessories optional. Price indication plus packaging and transport.

Condition: used, Year of construction: 2011, Slider length: 3000 mm Cutting width with fence: 1000 mm Cutting width with rip fence: 3200 mm Cutting depth: 154 mm Scoring saw: yes Saw blade height adjustment: electric / position control Saw blade swivel adjustment: electric / position control Fence adjustment: electric / position control Rip fence adjustment: manual Saw blade angle display: digital display Cutting height display: digital display Fence display: digital display Rip guide display: scale Rip guide with miter function: yes Saw blade diameter: 450 mm Speeds: Vario Motor power: 5.5 kW Chodpfxozdza Dj Aptjb Dust extraction port: 80 and 120 mm Machine length: 3200 mm Machine width: 2000 mm Weight: 1200 kg

Condition: used, Year of construction: 1990, functionality: fully functional, machine/vehicle number: 910718, 1 Cloos workpiece positioning unit, swivel and rotary device, with a protective screen in the center of the table. 2x2m distance between centers, center height 1300mm, 180° swivel unit type GR502, motorized. Two rotary devices with opposing supports are mounted on the platform of the rotary table. The drive side of the rotary device is designed as in type WPV-DP-5000 N. Load capacity per rotary device approx. 500kg. Cedpfx Apozkvarotohb Was mounted on a Cloos welding robot ROMAT 76 S with Rotrol control, manufactured in 1990. No exchange, return, or warranty possible.

Condition: reconditioned (used), - Table dimensions: 1,250 mm x 2,500 mm Chsdpfszx Sd Aex Aptjb - Table positions: 4 - Table rotation via a toothed crown gear (HIRT type) - Maximum load capacity: 2,000 kg - Equipped with a hydraulic unit - Height from base to table: 530 mm - Overall height: 700 mm

Condition: refurbished (used), machine/vehicle number: 5710, overall weight: 2,400 kg, DIVIMEK PHCN 1500 Chsdpfxozx Scls Aptsb Table size: 1500 Working position: horizontal Max. Load: 8,000 kg Max. Tangential torque: 22,000 Nm Servomotor: 22 Nm Braking torque: 5,500 Nm Net weight (without motor): 2,400 kg

Condition: used, Clamping surface (left-right) 630 mm Clamping surface (front-back) 630 mm workpiece weight / t Codpfx Apey Sulfotshb

Condition: used, centre height / mm weight 110 kg diameter 360 mm Chjdpfx Asy Sup Reptjb

Condition: excellent (used), 4 kW motor, feed unit, cutting height 9 cm, passage height 125 cm, table length 157 cm. Csdpfxjy S U D Uo Aptohb