Used knife grinding machines for sale (38)

Metal working machinery & machine tools Grinding machines Knife grinding machines

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Semi-auto knife sharpening machine GRAFS SR Semi-Auto

Hryniewicze

5,938 km

Semi-auto knife sharpening machine
GRAFSSR Semi-Auto

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Condition: new, Year of construction: 2025, spindle speed (max.): 1,450 rpm, grinding spindle motor power: 7,500 W, grinding wheel diameter: 250 mm, We are a family producer of machines based in eastern Poland. All our machines are in 100% build in GRAFS factory in Poland. We present our heavy-duty but simple straight knife grinder suitable for a broad range of industrial knives, machine designed especially for: - different recycling blades, - chipper knives, (ALBACH, JENZ, BRUKS), - planer knives, - guilotine blades, - shredding knives, - granulator blades, The knife sharpening machine model SR Semi-auto can be supplied in different grinding lengths: mm 1.200, mm 1.800, mm 2.100 mm, 2.400 mm, 3.000 mm Dodpjgwct Dsfx Agfeur Sending inquiry to us, please let us know what grinding length you need. TECHNICAL FEATURES IN PRESENTED MODEL GRAFS SR: • Hand wheel for down feed of the grinding motor, • Automatic mechanical downfeed system (from 0,003 mm up to 0,03 mm) • Adjustable grinding parameters during operation (downfeed, number of head passes, spark-out passes). • Grinding wheel motor angle adjustment within 0–10° (for surface grinding). • Swiveling electromagnetic chuck / table with ±120° angular scale, “S” type polarity, magnetic force 120 N/cm². Equipped with T-slot channel on the operator side for clamping knives. • Exchangeable hardened steel guide strips on the machine guides ensuring long service life. • Manual positioning of the grinding head over the workpiece, (possibility of locking and unlocking carriage driving unit by lever), • Carriage movement relative to the trolley in the Y-axis, for centre head position relative the different knives angles. • Quick vertical travel of the grinding motor for faster setup and efficient grinding wheel replacement. • Reversal of grinding wheel rotation, • Powerful 7,5 kW grinding wheel motor for wheel sizes Ø175–250 mm. Quiet, vibration-free special grinding head, soft-start included, • Special wheel holder/adapter mounted on the motor shaft, allowing fast change of any grinding wheel (CBN, DIA, or segmented) using just 3 screws. • Automatic external magnetic coolant cleaner – MS60. • Variable carriage speed smoothly adjustable in the range 1–12 m/min. • Carriage run adjustment knob (potentiometer) for fine control. • Precision scale for downfeed / grinding motor position measurement. • Precision scale for blade angle measurement. • Complete documentation: manuals, operating system, electrical diagrams in English / German / Czech / Spanish, including EU Declaration of Conformity. • Base of the machine surface finish and protection: polyurethane anti-rust coating with acrylic hardener. Body painted RAL7012 or RAL7035; trolley and carriage RAL7021. • Adjustable anti-vibration leveling feet. • LED lamp in working area. • Very compact electric cabinet at the back of the machine base / body. • Coolant through the 2 nozzles either side of the grinding wheel, • Packing, shipment preparation, and truck loading included. FUNCTIONS INCLUDED: • Automatic down feed with mechanical feed system by ratchet, • Grinding wheel motor angle adjustment 0–10° (surface grinding option). • Smooth adjustment of carriage/head speed 1–16 m/min. • Manual positioning of the grinding head over the workpiece. • Carriage relative movement in the Y-axis. • Capability of grinding knives up to 360 mm in height. • Quick up/down travel of the grinding motor for fast setup and wheel replacement. • Automatic coolant filtration system. We are a producer from Poland, we provide after sale support and service with 12 month's warranty.

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Automatic knife grinding machine 2400 mm GRAFS GR-2400e

Hryniewicze

5,938 km

Automatic knife grinding machine 2400 mm
GRAFSGR-2400e

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Condition: new, Year of construction: 2025, functionality: fully functional, grinding length: 2,400 mm, total length: 3,500 mm, grinding width: 180 mm, grinding wheel diameter: 250 mm, Equipment: documentation/manual, GRAFS GR-2400e is heavy-duty straight knife grinder / vertical surface grinder with swiveling electromagnetic chuck, suitable for a broad range of industrial knives, such as guilotine knives for metal, granulator blades, veneer knives, chipper knives, planer and paper and knives HM / HSS for paper cutters. We are a sharpening shop for over 12 years. All our machines are in 100% build in GRAFS factory in Poland. TECHNICAL FEATURES / MAIN ADVANTAGES: • Mitsubishi Touch Screen operation panel HMI 7"; • Mitsubishi PLC, • Mitsubishi Inverter for carriage run adjustment / feed, • Internet communication system with GRAFS technical support in case of any problems, • Grinding wheel motor 11 kW (15 HP), 400-3-50 Hz; • Grinding wheel Ø250mm corundum in aluminum base, (segment grinding wheel upon request); • Reversal of grinding wheel rotation; • Electromagnetic chuck 180x2400 mm; Surface grinding 180x2400mm, • T channel on the other side of the chuck (from operator side), • Angular divisor for magnetic table rotation ±120°; • Fast grinding wheel descent and ascent (by switches) and slow approach by hand wheel; • Motorized automatic grinding wheel downfeed, controlled by Mitsubishi PLC (0.001-0.05 mm); • Automatic work cycle (roughing, sparkout); • Variable carriage speed from 1 to 16 m/min; • Coolant through 2 nozzles either side of the grinding motor; • Longitudinal grinding head angle adjustment from 0° to 5°; (flat surface grinding possibility), • External tank with pump; • Magnetic cleaner / filter MODEL MS, • Fast grinding wheel exchange system, grinding wheel adapter with 3 securing screws, • Exchangable hardened steel strips on machine body guides, 2 at the top, and 2 at the bottom of main guide. • Carriage rollers from INA, on on the regulated cam, • Heavy body of the machine (steel plates 10 mm thick), build in cell design, • Electric cabinet on Shneider components, • Secure cover of the grinding wheel with magnetic interlocks, • User manual and control panel menu in Polish / English / German / Czech / Spanish / French, • Machinery LED lamp in working area, UPON REQUEST: • Different types of knives mounting, Dujdpfx Agsd Tc Haofsr • Coolant cleaner with automatic paper filter, • Main grinding motor can be 5.5 kW, 7.5 kW and 11 kW, • The knife sharpening machine model GRAFS GR can be supplied in 4 different grinding lengths: 1.200 mm, 1.800 mm, 2.100 mm and 2.400 mm. • Accordion covers on whole body of the machine, • Mist collector, We provide an European Declaration of Conformity and all documents. The machine is new, we are a producer from Poland, we provide after sale support and service with 12 month's warranty.

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