Used Cold Jet Drdryice Dry Ice Blasting Equipment for sale (44,262)

Condition: used, HR 2K inkjet printer barcode labeling RA2309 Printer manufacturer: REA-JET Printer type HR Operation: Control unit with control panel Print type: Inkjet printer interfaces: Eternet Stainless steel control unit in IP65 design Full-color graphic display, diagonal of 14.4 cm (5.7 inches) Graphic user guidance in many languages Support for True Type Fonts (TTF) and Unicode character set Operation: ten-key keypad, cursor block, push and turn operation REA JET HR 2K (with 2 writing heads, up to 25.4 mm writing height) Fgodpsukxv Nsfx Afkjc Maximum speed of the system: 762m/min at 60 dpi resolution. 142m/min at 300 dpi. Maximum is 600 dpi. Condition: Worked until dismantling, we have no cartridges available for prior testing. Electrically everything seems to work perfectly (see photos) Abrasion on the rotary encoder (see photo) and USB cover is missing (see foro). Prices net plus VAT ex central warehouse Dr. Sonntag GmbH & Co KG, Gattingerstraße 11 B & C, 97076 Würzburg, Germany

Condition: used, Year of construction: 2004, The Tortica Ice Group Family Tub Ice Cream Filler is a high-performance, purpose-built packaging solution engineered for efficient filling of family-size ice cream tubs and multi-serving containers. Designed for artisan creameries and industrial ice cream manufacturers alike, this machine combines precision dosing with gentle product handling to preserve texture and reduce waste. Built with robust stainless-steel construction and hygienic food-grade components, the Tortica filler ensures consistent portion control and maximum uptime. Its intuitive controls and flexible filling range make it ideal for a wide variety of frozen desserts — including ice cream, gelato, sorbet, frozen yogurt, and premium specialty blends. Key Features: - Accurate volumetric or servo dosing for consistent product weight and minimal giveaway - Adjustable fill heights and speeds to accommodate tubs from small family sizes to larger multi-serve formats - Hygienic design with easy-clean sanitary surfaces, CIP compatible components, and sealed guarding - User-friendly interface for quick changeovers and reduced operator training time - Heavy-duty construction suited for continuous production environments - Smooth, low-shear filling preserves ice cream structure and reduces air entrainment - Optional integrations for lid placement, sealing, date coding, and packing conveyors Whether you’re scaling up production or upgrading your existing line, the Tortica Ice Group Family Tub Filler delivers dependable performance, precise filling accuracy, and the flexibility to support product innovation and seasonal variety offerings. Cup size: 200 x 100 mm (LxW) Granular application: Available Main filling: Available Cap Closing: Available Stations: Cup Dispenser > Filler > Granular Filler > Lid Closing > Outlet Conveyor Fedpeynr Axjfx Afkogc Condition: Good Available: Immediately

Condition: used, Year of construction: 2018, Colour: Grey Empty weight: 400 kg Dimensions (LxBxH): 160 x 130 x 130 cm - Details: - └ Description: Includes tank and dryer Fgjdpfxeyuga Ej Afkjc - Year: 2018 - Documentation available: No - CE certificate present: No - Transport dimensions: 1600mm x 1300mm x 1300mm (l x w x h) - Transport weight [kg]: 400kg - Transport packages [pcs.]: 1 Financial information 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 Yorick Diebels

Condition: used, Code: 0354 Brand: JET/USA Model: DDS 225 - CE Standard Automatic 2-roller calibrating sanding machine for wood, furniture, joinery, custom made furniture, panels, wooden joinery, plastics and various materials – CE Standard Features: Sturdy construction Outfeed roller adjustment independent of the infeed roller Hard rubber coating on the rollers 2-speed conveyor belt Working width 635 mm Min workpiece length 230 mm Min workpiece height 0,8 mm Max workpiece height 133 mm Roller dimensions 152 x 635 mm Roller rotation speed 1400 rpm Fgedpfoy A Synex Afkec Conveyor belt speed 2–3 mt/min 2 suction inlets diameter 100 mm each Power output 5 Hp Enclosed base with door Abrasive belt 80 gr Abrasive belt 100 gr Overall dimensions mm 1150 x 1150 x 1050 h Weight kg 330

Condition: new, functionality: fully functional, power: 196 kW (266.49 HP), fuel type: electric, color: other, Year of construction: 2026, *All of our products are made with care and covered for 1 year warranty! *Installation and Operator Training FREE FABO PRO Serie is a mobile type closed circuit crushing plant that is suitable for especially limestone and other types of stones with hardness level is soft or medium. MAIN FEATURES: * Closed circuit crushing till to get desired size of product * Capacity is variable according the material feed and final product dimensions to be crushed. * All equipments are assembled on single special heavy duty construction chassis, transportable by 1 truck. * Conveyors are foldable * Up to 3 different sizes of aggregates * Since the whole plant is built in one chassis, it has the advantage of the fastest production line * PRO Serie Mobile Crusher Plant can be used by single operator, feed can be done by truck, loader or excavator * Plant can be installed in 2 days with its special heavy duty construction chassis * With its multifunctional primary impact crusher, plant can crush different product sizes with high capacity * It is equipped with 3 axle, air-controlled brake system and signaling system. Fgjdpey S Tp Nofx Afkoc * Hydraulic system is controlled by remote system * All motors are under protection with metal sheet covers * The dust suppression control system prevents dusting by conveying high pressure water. * Mobile system has complete fully automation system. Also the plant can be controlled by using tablet with single staff. PRO 90 CRUSHING AND SCREENING PLANT -Bunker: 20 m3 -Plant Dimensions: 16870x4552x4627 mm -Production Capacity: 90-130 Tons Per Hour -Crusher Type & Rotor Size: Turbo Impact – 1100x900 mm -Maximum Feeding Size: 500 mm -Vibrating Screen Size and Deck: 1400x4000 mm 3-4 decks -Total Motor Power: 196 Kw -Generator Capacity: 400 kvA → PRO 90 IS A COMBINATION OF : • Bunker • Vibrating Feeder • Turbo Impact Crusher • High Stroke Type Vibrating Screen • Folding type feeding, feedback, bypass and stock conveyor belts • Hydraulic feet • Mobile Chassis with axles and tires • Fully Automation System • Dust Suppression System • Easy walking platforms for maintenance • Diesel Generator (Optional) FOR FURTHER INFORMATION PLEASE FEEL FREE TO CALL US!!!

Condition: used, sanding belt measurements 2.260 x 150 mm Motor output 1,5 kW Fgodpfx Afjwffpbekjc table: schwenkbar Dust suction hood 100 mm

Condition: good (used), Beer / Brewery Production Equipment 9 qty insulated tanks, approx 1000 lts capacity each 2 qty large tanks, approx 1500 lts capacity each All associated pumps, chiller pump units, wash station. 2 qty tanks with lids, approx 1000 lts each 2 qty large tanks with lids, approx 1500 lts each All associated pumps, water filteration system Fodpoyg R Azsfx Afkjgc 2 qty timber clad tanks, approx 1000 lts and 1500 ltd capacity each 2 qty insulated tanks, approx 1000 lts capacity each All associated equipment, heat exchanger, pumps,

Condition: good (used), Facom Jet Tool Cart with 8 Drawers Perfect condition, Facom tools. Made in France. Accessories as shown in the photos. Price is for the entire unit. Fgsdpfjyzt Nzox Afkjc

Condition: not inspected (used), functionality: unexamined, total height: 1,000 mm, total width: 800 mm, total length: 1,100 mm, overall weight: 150 kg, No reserve price – guaranteed sale to the highest bidder! By placing a bid, you commit to collecting the items within the period from 23/06/2026 to 26/06/2026! Fgsdey D Nqaepfx Afkjc Auction of an ELEKTRA BECKUM electrode welding machine & an oxy-fuel welding unit! MACHINE DETAILS Dimensions (L x W x H): 1,100 x 800 x 1,000 mm Weight: 150 kg Note: The gas cylinders pictured are not included in the scope of delivery. External reference: 17

Condition: used, - Cooking chamber dimensions: 1200x2000 mm - Refurbished equipment: The equipment is prepared upon order, collection and return deadlines are agreed at that time (please ask for the price after refurbishment). Fodpfx Afjwxmn Ssksgc

Year of construction: 2006, condition: ready for operation (used), functionality: fully functional, Robust shut-off and check valves in various designs – ideal for industrial applications in water, air, and material handling technology. These high-quality valves impress with their sturdy construction, reliable sealing, and ease of use. Perfectly suited for maintenance, replacement, or expansion of existing systems. Various sizes and models available. Immediately ready for use and in good condition. Fgsdpfoy Smtnjx Afkoc 8x 150 DN 16 PN EBRO 2x 125 DN 16 PN EBRO 3x 150 DN 16 PN JET

Condition: ready for operation (used), GRAM SKS cream refrigeration cabinet made of stainless steel, complete, suitable for 60x40 trays Fgsdpfxeghmvcj Afkoc Call us to discuss further details. Thank you very much.

Condition: like new (used), Year of construction: 2020, operating hours: 250 h, functionality: fully functional, 1.1 TECHNICAL DATA 1 x Waterjet cutting machine, NCP 4020 D 1 x FANUC 31iB d 1 x IGEMS Professional 1 x BevelJet cutting heads for AWJ abrasive waterjet cutting 1 x Fixed cutting heads for AWJ abrasive waterjet cutting 2 x SM3000 feed systems 1 x KMT, Jetline 50 HP, 3.8 l/min, 4100 bar 1 x Cooling unit control cabinet 1 x Hose reel with spray nozzle 1 x Tool kit 1 x Machine zone safety guard 1 x PanelOne HMI operator interface "EDGECUT" 1 x Remote control for high-pressure pump 1 x Remote maintenance system 2 x Diaphragm pumps and 2 x extraction units 1 x Waste container 1000 l 1 x Pressure vessel 200 l or 2-ton abrasive online conveyor/online abrasive hopper 1 x Head protection package (zero-point measurement head 1) 1 x IGEMS 5X CAM 1 x MPG, portable handheld pendant 1 x Rotary unit SS (chuck 240 mm) Price €21,000 1.1.1 MACHINE DATA Table size (W x D): 4200 x 2275 mm - Machining area (W x D): 3980 x 2010 mm - X-axis travel 2D: 3530 mm - X-axis travel 3D: 3220 mm - Y-axis travel 2D: 2010 mm - Y-axis travel 3D: 1405 mm - Z-axis travel: 250 mm - Positioning accuracy (X/Y): +/- 0.050 mm/m - Repeatability (X/Y): +/- 0.025 mm Fsdpfx Afjxgua Aokegc - Rapid traverse (X-axis): 30,000 mm/min - Rapid traverse (Y): 15,000 mm/min - Rapid traverse (Z): 5,000 mm/min - Minimum distance between nozzles: 450 mm - Maximum distance between nozzles: 2,010 mm 1.2 CONNECTION DATA 1.2.1 MACHINE CONNECTION • Electrical connection: 3 x 400 V+PE, 16 A, 50 Hz • Pneumatic supply volume (incl. pressure vessel): 500 l/min • Pneumatic supply pressure: min. 6.5 bar 1.2.2 HP PUMP DATA/CONNECTION HP pump data: - KMT 50, Jetline, 4100 bar - 37 kW, circuit breaker at 400/50 Hz, 80 A CAD/CAM software: - IGEMS Professional

Condition: excellent (used), Year of construction: 2005, functionality: fully functional, 1. Waterjet cutting system with accessories, year of manufacture 2005, machine number: 95 246, Model 4060D, including: 2. Machine details: - NC 4060 D (Duplex with 6 cutting heads for abrasive cutting) - 1 x cutting table: 4200 x 6700 mm - X-axis travel: 2750 mm - Y-axis travel: 6470 mm - Z-axis travel (height): 250 mm - Positioning accuracy (X/Y): +/- 0.075 mm/m - Repeatability (X/Y): +/- 0.05 mm - Feed rate X: 10,000 mm/min - Feed rate Y: 10,000 mm/min - Feed rate Z: 4,000 mm/min Technical specifications: - 1 x Fanuc GE 300 i (NANO CNC) SYSTEM Control functions • 15-inch color LCD display (resolution 1024 x 768) • Machine control panel • 1.5 GHz Pentium III processor • Vertical and horizontal soft key bars • Slim operator panel with QWERTY keyboard • 40 GB program storage (hard disk) • 2 MB RAM for part programs • Windows 2000/XP operating system • Hand-held control unit (remote control) for easy axis positioning – 1 x MPG unit – 6 x WJS standard cutting heads mounted on holders (2 x 3 pieces) – 6 x SM 3000 abrasive metering units – 1 x IGEMS Standard or Professional – 1 x documentation – 2 x abrasive storage tanks, 1,500 l each – 1 x sludge removal system, 3 x diaphragm pumps – 1 x wastewater tank 1,500 l Fgodexgumcjpfx Afkjc – 1 x cascade tank – 1 x new stainless-steel cutting tank (4 x 6.7 m) - 10 m high-pressure hoses with fittings - 1 x KMT high-pressure pump, 100 HP, 4,100 bar, only 9,500 operating hours - Installation and maintenance by WJS personnel Machine connections: Electrical connection: 3 x 400 V+N+PE, 25 A, 50 Hz Compressed air supply: 600 l/min Air pressure (technically dried): 6.5 bar

Condition: like new (used), Cove Equipment Shredder Model: SH-5 Stainless shredder, continuous process, ideal for chicken and pulled pork, 750Kgs per hour, 1Ph Fsdpfx Afof N Nd Sjksgc

Year of construction: 2022, operating hours: 1 h, condition: as good as new (ex-display), The CE20 belongs to the series of our electrically operated high pressure machines with a pressure of 170 to 500 bar and a volume flow of 16 to 45 l/min. The standard version has hard rubber tyres with a parking brake at the rear and swivel castors at the front. The "Slim version" has a narrower design and also has narrower rear wheels with a parking brake. The frame is made of hot-dip galvanised and powder-coated sheet metal mouldings with stainless steel side frames all round. The standard model has a dimension of 1060 x 760 mm. The "Slim" version has a very compact dimension of 1060 x 500 mm. Both versions are 850 mm high. The standard and the slim version are identical in all other specifications. Similar but no Dynajet, Falch, Hammelmann, Kamat, Kärcher, Oertzen, Uraca, Woma, etc. Models available: ----- 50 Hz-bar-l/min. CE20-200-38 CE20-280-26 CE20-350-23 CE20-400-20 Fgsdpfx Ajhf Nbdefkjc CE20-500-16 60 Hz and others see data sheet and on request. General specifications: ----- Power of drive motor: 15 kW (50Hz) / 15 kW (60Hz) Volt: 400V (50Hz) - 440V (60Hz) Amp: 28A (50Hz) - 26A (60Hz) Dimensions: 950 mm x 720 mm x 800 mm Dimensions SLIM: 950 mm x 500 mm x 800 mm Weight: 175 kg Standard accessories included.

Condition: as good as new (ex-display), Year of construction: 2025, operating hours: 1 h, The CP22 belongs to the series of petrol-powered high-pressure machines with a pressure of 170 to 500 bar and a volume flow of 16 to 46 l/min. The machine has pneumatic tires with a parking brake on the rear axle and castors on the front axle. The frame consists of hot-dip galvanized and powder-coated sheet metal parts with all-round side frames made of stainless steel. The machine measures 1060 x 760 mm and is 850 mm high. The Honda engine is equipped with an electric starter. Similar but not Dynajet, Falch, Hammelmann, Kamat, Kärcher, Oertzen, Uraca, Woma, etc. Available models: Fsdpfohga U Ajx Afkjgc ----- Model Pressure Flow CP22-170 170 bar 46 Lpm CP22-220 220 bar 36 Lpm CP22-280 280 bar 27 Lpm CP22-350 350 bar 23 Lpm CP22-500 500 bar 16 Lpm General specifications: ----- Drive motor: 2 cylinder 4-stroke petrol engine, electric start Drive motor power: 16.4 kW Drive motor speed: 3600 rpm Optional: with hand throttle Tank: 28 L Max. fuel consumption: 6.8 L/h Dimensions and weight: Standard: 1100mm x 750mm x 1080 mm (160 kg) Standard with tires: 1100mm x 1050mm x 1080 mm (170 kg) 400l version: 1300mm x 1120mm x 1250 mm (250 kg) 800l version: 1300mm x 1490mm x 1250 mm (280 kg) Includes standard accessories.

Year of construction: 2022, operating hours: 1 h, condition: as good as new (ex-display), The CE15 series is an electrically powered high pressure cleaner. This model is the ideal tool for general cleaning jobs. Built into a stainless steel frame, this robust pressure washer is easy to move and can be equipped with various accessories such as rotor nozzles, chemical injectors and a sandblasting kit. Similar but no Dynajet, Falch, Kärcher, Oertzen, etc. Models available: ----- CE15-series L/min CE15-150 bar 40 15 hp water blaster unit 50Hz CE15-150 bar 40 15 hp water blaster unit 50Hz with start/stop CE15-170 bar 35 15 hp water blaster unit 50Hz CE15-170 bar 42 15 hp water blaster unit 60Hz CE15-170 bar 35 15 hp water blaster unit 50Hz with start/stop CE15-170 bar 42 15 hp water blaster unit 60Hz with start/stop CE15-200 bar 30 15 hp water blaster unit 50Hz CE15-200 bar 36 15 hp water blaster unit 60Hz CE15-200 bar 30 15 hp water blaster unit 50Hz with start/stop CE15-200 bar 36 15 hp water blaster unit 60Hz with start/stop CE15-300 bar 18 15 hp water blaster unit 50Hz CE15-300 bar 22 15 hp water blaster unit 60Hz CE15-300 bar 18 15 hp water blaster unit 50Hz with start/stop CE15-300 bar 22 15 hp water blaster unit 60Hz with start/stop General specifications: ----- Drive motor power: 11,2 kW (50Hz) / 13 kW (60Hz) Volt: 400V (50Hz) - 440V (60Hz) Fodpfshf Na Sex Afkogc Amp: 22.8A (50Hz) - 23.8A (60Hz) Dimensions: 690 mm x 600 mm x 900 mm Weight: 85 kg Standard accessories included.

Year of construction: 2022, operating hours: 1 h, condition: as good as new (ex-display), The CE10 series is an electrically powered high pressure cleaner. Fgjdpfxjhf Na Io Afkec This model is the ideal tool for general cleaning jobs. Built into a stainless steel frame, this robust pressure washer is easy to move and can be equipped with various accessories such as rotor nozzles, chemical injectors and a sandblasting kit. Similar but no Dynajet, Falch, Kärcher, Oertzen, etc. Models available: ----- CE10-series L/min CE10-200 bar 21 10 hp water blaster unit 50Hz CE10-200 bar 25 10 hp water blaster unit 60Hz CE10-200 bar 21 10 hp water blaster unit 50Hz with start/stop CE10-200 bar 25 10 hp water blaster unit 60Hz with start/stop CE10-250 bar 15 10 hp water blaster unit 50Hz CE10-250 bar 18 10 hp water blaster unit 60Hz CE10-250 bar 15 10 hp water blaster unit 50Hz with start/stop CE10-250 bar 18 10 hp water blaster unit 60Hz with start/stop General specifications: ----- Drive motor power: 7,5 kW (50Hz) / 9 kW (60Hz) Volt: 400V (50Hz) - 440V (60Hz) Amp: 15.1A (50Hz) - 15.6A (60Hz) Dimensions: 690 mm x 560 mm x 900 mm Weight: 70 kg Standard accessories included.

Condition: used, functionality: fully functional, Price with dismantling. Drysorter with control system Mitsubishi A2. Drysorter Fgedjyzhvvepfx Afkjc capacity 80 pc/min after rebuild 2021 new control system Siemens S7 1500, ABB580 frequency converters and Finscan 2019 automatic sorter. Drysorter equipped with Dynagrade 2015 (updated 2020).

Condition: excellent (used), Year of construction: 2021, functionality: fully functional, machine/vehicle number: KB-20211022002, 3 x Hangzhou Kuangbo Machinery Equipment Co. Ltd 2000L beer tanks, previously used as a brite tank but can be used as an FV. Fgsdpfxowl H Nie Afkjc Technical Specification: Model - KBBFT1300A. Serial number - KB-20211022002 Date of manufacture - 2021. Capacity - 2000 litres. Notes: All 1.5inch Tri Clamp connections other than DIN PRV port on top, manway door, and larger triclamp Features: Port on top for dry hopping etc. 2x thermowells, one for a thermometer at front and one for temp sensor in back & a CIP arm on the RHS, with sprayball.

Condition: like new (used), Year of construction: 2025, For sale is a used JET panel saw JTS-600XL with a maximum cutting length of 1600 mm. The machine was only briefly used for demonstration purposes in our showroom and is therefore in as-new condition. Technical data: - Motor: 230 V / 1.5 kW / 2 HP - Saw blade speed: 4000 rpm - Saw blade diameter / bore: 250 / 30 mm - Saw blade tilt: 0° – 45° - Max. cutting depth at 0°: 80 mm - Max. cutting depth at 45°: 54 mm - Max. cutting width at rip fence: 610 mm Fgodjy Nm H Aspfx Afkec - Table dimensions: 800 x 350 mm - Table extension: 415 x 350 mm - Table widening (right): 800 x 270 mm - Precision sliding table: 1600 x 255 mm - Max. cutting length: 1600 mm - Machine dimensions: 1650 x 2200 x 1100 mm - Weight: 157 kg Scope of delivery: - Sliding table 1600 x 255 mm - Circular saw blade Ø 254 x 30 x 3 mm - 36 TCT teeth - Parallel fence - Support table 460 x 600 mm with extendable crosscut fence 2200 mm - Extraction port Ø 100 mm The machine is located in A-8561 Söding and can be inspected during our business hours at any time. Subject to prior sale! Related terms: saw, circular saw, panel saw, format Reference: R-D1618

Condition: excellent (used), Flake ice machine on stand, can produce up to 3.2 tonnes per day of flake ice. Lovely condition. 3 in stock. Fodpsh Nnd Rsfx Afkegc

Condition: used, This listing is for a Woodley Equipment Clinispin 642E Horizon Centrifuge Fodpoxzh H Sefx Afkogc

Year of construction: 2024, operating hours: 1 h, condition: new, functionality: fully functional, machine/vehicle number: 86-731-85552647/18153792542, We are a company based in 9000 St. Gallen (Switzerland) and imported this planetary ball mill from China in 2024. The unit is brand new and unused. We have switched the machine on and let it run empty for a few minutes to verify its functionality. It comes with 4 x 25-liter nylon containers. Additionally, 120 kg of zirconium beads with a 1 mm diameter are available. ~ Manufacturer's Description: Fodoyilnzspfx Afkjgc The YXQM series of planetary ball mills for mass production is a machine designed for production applications, built to handle medium-scale capacities to meet industrial requirements. It facilitates the smooth transition of materials from laboratory scale to full production, ensuring consistency and repeatability of processes and thus reliable material quality. The equipment is widely used across new energy, metallurgy, electronics, ceramics, geology, mining, construction materials, chemical industry, light industry, cosmetics, environmental protection, and other enterprise-level material production sectors. Extremely high centrifugal forces inherent to planetary ball mills generate intensive grinding energy, resulting in short milling times. These machines are ideal wherever the quality control process demands the highest standards of purity, speed, fineness, and reproducibility. This series can be equipped with vacuum jars, allowing samples to be ground under vacuum conditions. It is well suited for research tasks at scientific institutes, universities, and industrial R&D laboratories to verify the feasibility of scale-up to mass production, as well as for routine operations such as mixing and homogenizing soft, hard, brittle, or fibrous materials—from laboratory tests through to production. - Key Features: - High-performance, nanometer-scale grinding - Digital display, intuitive operation, precise parameter setting - Variable speeds from approx. 10 to 440/360 rpm, speed ratio 1:2 - Batch processing with up to 4×6/9 L samples, simultaneous processing of 4 materials - Electric lid opening and integrated crane for easy and convenient operation - Storage for 3 modes and 15 programs - Power failure protection with memory function and automatic restart - Suitable for dry, wet, vacuum, and protective atmosphere grinding - Machine stops upon lid opening; automatic interlock prevents accidental release - Equipped with rollers and swiveling feet for easy movement and stable operation Applications: Grinding, mixing, homogenizing, colloidal milling, mechanical alloying, mechanochemistry Fields of Application: New energies, geology/metallurgy, glass/ceramics, engineering/electronics, building materials, environment/recycling, agriculture, chemistry, medical, biology Feed material: Soft, hard, brittle, fibrous – dry or wet Size reduction principle: Impact, friction Feed size: < 5 mm soil, < 10 mm Final fineness: For colloidal milling, samples below 0.1 micron Number of grinding stations: 4 Grinding methods: Dry grinding, wet grinding, vacuum grinding, grinding under protective atmosphere