Used C&U Ball Bearing for sale (74,451)

Condition: new, functionality: fully functional, Year of construction: 2026, Dry and Wet Ball Mill: Structure, Operation, and Technical Details A ball mill is a fundamental grinding device used in mineral processing, cement manufacturing, chemical production, and other industrial applications. It works by rotating a cylindrical shell filled with grinding media—usually steel balls—causing impact and friction that reduce materials to fine powder. Based on the grinding environment, ball mills are classified into dry and wet types, each suited for specific materials and process requirements. Working Principle Both dry and wet ball mills operate on the same mechanical principle. The rotating cylinder, driven by a motor through a gear system, lifts the grinding media and material along the inner wall. As the rotation continues, the balls fall under gravity, striking and grinding the material. The difference lies in the presence or absence of a liquid medium during grinding. Dry Ball Mill A dry ball mill is used when the material must remain moisture-free or when water could affect product quality. It is commonly applied in cement clinker, limestone, quartz, and refractory material grinding. The discharge can be either grate type or overflow type, depending on the desired fineness. Technical Features: Feeding size: ≤25 mm Discharge size: 0.075–0.4 mm Capacity: 0.65–90 t/h Liner material: High manganese steel or wear-resistant alloy Drive system: Gear-driven or direct-coupled motor Dust control: Equipped with air exhaust and dust collector Advantages: Suitable for materials sensitive to moisture Gsdpoq Nx Aljfx Albouc No drying process required after grinding Lower corrosion risk and simpler maintenance Easier material classification and separation Limitations: Dry grinding produces more dust and heat, requiring efficient ventilation and dust collection systems. Wet Ball Mill A wet ball mill operates with water or another liquid medium added to the material. The slurry formed during grinding improves efficiency by reducing friction and preventing excessive heat buildup. It is widely used in ore beneficiation, ceramics, and chemical industries. Technical Features: Feeding size: ≤25 mm Discharge size: 0.074–0.2 mm Capacity: 0.65–615 t/h Liner material: Rubber or high-chromium steel Discharge method: Overflow or grate type Auxiliary equipment: Classifier, pump, and thickener for slurry circulation Advantages: Higher grinding efficiency and finer particle size Reduced dust and noise levels Continuous operation suitable for beneficiation circuits Better control of particle uniformity Limitations: Requires drying if the final product must be in powder form and involves more complex slurry handling. The selection between dry and wet grinding depends on the material characteristics, downstream process, and environmental conditions. Dry mills are preferred for materials that must stay moisture-free, while wet mills are ideal for fine grinding and slurry-based processes. Conclusion Dry and wet ball mills share the same mechanical structure but differ in their grinding environment and application scope. The dry type offers simplicity and low maintenance for moisture-sensitive materials, while the wet type provides higher efficiency and finer output for mineral and chemical processing. Understanding their technical parameters and operational differences ensures optimal equipment selection, improved productivity, and reliable performance in industrial grinding operations.

Year of construction: 2026, condition: new, ceramic ball mill ,Batch ball mill ,also called ceramic ball mill ,it is used for fine grinding of feldspar,quartz,clay,ore and so on.The ceramic ball mill is mainly used for material mixing, grinding,uniform product fineness,and saving power.It can be dry or wet.The machine can use different liner types according to production needs to meet different needs.The fineness of the grinding operation is controlled by the grinding time ceramic ball mill Working principle when ball mill working,steel balls inside drum will rotate with the drum to some height,and then steel balls fall down with materials to reach the point of grinding. Working Principle of Ceramic ball mill Guedpfsvzx Auox Albec ceramic ball mill ,Intermittent ball mill grinding operation is finished in the cylinder body. When the cylinder rotates, materials ascend to a certain height and then fall along a certain path due to the balls' gravity. Two forces are generated on the balls inside. One is the force on balls through tangent direction; the other is a opposite force in the contrast to the diameter of balls, as a result of the force generated when the balls slide down. These two forces will constitute a couple for the steel balls. The balls are squeezed between the cylinder and the adjacent steel balls, so the couple can make unequal-sized friction force. The balls will orbit along with the cylinder axis and then fall down, which can produce a strong impact force on the ores in the cylinder body and, as a result, the ores will be crushed. In conclusion, the ores in the cylinder body are mainly crushed by composite effect of peeling force, impact force and extrusion force. Ceramic ball mill also named Intermittent ball mill which adopts the wet intermittent operation, is used for fine grinding and mixing the material such as feldspar, quartz, clay ceramic raw materials. The discharging and the mud size can through through 1000 sieve pore. This machine is high milling machinery, materials should be Broken in the fineness of the state into the grinding mill to get the highest efficiency and economic benefits. The cement mill is key equipment for the grinding process of the cement clinker after the crushing process of it. It is mainly used in the cement silicate product industry. After long term design and manufacture of the cement mill, our company now has series of cement mill with various specifications to meet with different requirement from our customers. Features of Cement Mill Our company adopts suitable transmission methods according to different specifications. We have brim drive and center drive as transmission form. The cylinder adopts new type step lining to increase the grinding area. And it is easily repairable and changeable. The new designed separate-chambered structure adopts flexible lifting blade and fixed lifting blade and it is easily fixed and repaired. Technical Details We have different models and options for different requirements, please contact us for more info.

Condition: ready for operation (used), Balluff BIS C-620ST2-S evaluation unit version 1 . 3 used 100% functional Gedpfsi D T D Sjx Albsuc

Condition: new, Balluff BIS00A9 BIS C-602-019-xxx-03-KL2 24 Vdc evaluation unit with BIS C-670-00,3 cable and BCC011N connector, unused, 100% functional, delivery as per photos. Guodpsy Np Enjfx Albjc

Condition: ready for operation (used), Balluff BIS C-620ST2-S evaluation unit software / hardware version 1 . 3 used 100% functional Guedpfei D T D Isx Albjc

Condition: ready for operation (used), Balluff BIS C-6002-19-…-03-ST11 0733 DE / BIS C-650 evaluation unit, used, normal signs of wear, 100% functional, scope of delivery as per photos Guedpfx Aloi D T Dysboc

Condition: ready for operation (used), Balluff BIS C-620ST2-S evaluation unit, used, good condition, 100% functional Gsdpfx Asi D T D Djlbeuc

Condition: used, Proximity switch, cylinder sensor, magnetic field sensor Godpfod Tpkxsx Albouc -Product type: BMF 315K-PS-C-2-PU-05 -Number: 6x available -Price: per piece -Weight: 70 g

Year of construction: 2019, condition: new, Brand C&U Group Shanghai Bearing Co Ltd Model: TM6307/41RS Year of manufacture: Unused Weight (kg) approx 6790 net Number of pieces in stock 17350 ( approx ) Made in China Guodpfjqa Anqjx Albec Comments Contact us for min. quantity Terms of sale Contact us for min. quantity

Condition: new, Year of construction: 2026, A superfine ball mill is a type of milling machine that is used to grind materials into very fine particles. This type of ball mill has some distinctive features that make it especially suitable for processing even the hardest materials with low contamination and minimal wear. It is commonly used in various industries, including pharmaceuticals, minerals, pigments, and chemicals, for producing micro powder or nanoparticles. Here are some key features and considerations for a superfine ball mill for micro powder: 1. High Grinding Efficiency: Superfine ball mills are designed to achieve high grinding efficiency by utilizing grinding media with a relatively small size, leading to a large surface area for grinding. Guodpfx Aeq Nf Uwelbjc 2. Precision Control: These mills often come with advanced control systems to regulate parameters like rotation speed, temperature, and grinding time, allowing precise control over the particle size distribution. 3. Specialized Design: The mill is typically designed with features to minimize contamination, such as using materials resistant to wear and corrosion. Some mills also have cooling systems to prevent overheating during the milling process. 4. Variety of Materials: Superfine ball mills can handle a wide range of materials, including both brittle and fibrous substances. They are often used for milling hard materials that require fine grinding, such as ceramics, minerals, or pigments. 5. Size Reduction to Micro or Nano Level: The primary goal of a superfine ball mill is to reduce particle size to the micro or even nano level. This is achieved by the intense grinding action that occurs within the mill. 6. Classifier System: Some superfine ball mills incorporate a classifier system to control the particle size distribution more precisely. This allows for the separation of fine particles from coarser ones during the milling process. 7. Batch or Continuous Operation: Depending on the specific design, these mills can operate in either batch or continuous mode, offering flexibility based on the production requirements. 8. Safety Measures: Safety features may be included, such as monitoring and control systems to prevent overloading, overheating, or other potential issues during operation. When selecting a superfine ball mill for micro powder production, it's important to consider the specific requirements of your application, the characteristics of the materials you're working with, and the desired final particle size distribution. Always follow the manufacturer's guidelines for operation, maintenance, and safety to ensure optimal performance and longevity of the equipment.

Condition: used, Year of construction: 2011, number of spindle speeds 18.000 U/min NC rotary indexing table Ø 630 mm Gjdpozczhajfx Albjuc control HEIDENHAIN - iTNC 530 numbers of positions in the tool changer 32 tool taper SK 40 5-axis simultaneous machining center | HERMLE - C 30 U equipped with ITC (80 bar), NC swivel rotary table, tool changer & chip conveyor. The machine has only 13.924 H spindle hours. The machine is in a well-maintained condition and can be inspected under power at any time. Please refer to further technical details in the attachement of the offer. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #Tags: C30U | C-30U | C-30 U

Condition: ready for operation (used), Indramat MAC 090C-0-KD-4-C / 130-A-0 / WI522LV / S003 Permanent three-phase servo motor SN:54968 without tacho and encoder, used, normal signs of wear, 100% functional, scope of delivery as per photos Gusdpfx Alsrmga Ujbjc

Condition: used, Year of construction: 2007, number of spindle speeds 10.000 U/min NC rotary indexing table Ø 630 mm control HEIDENHAIN - iTNC 530 numbers of positions in the tool changer 32 tool taper SK 40 Guedezaf Hujpfx Albsc 5-axis simultaneous machining center | HERMLE - C 30 U equipped with ITC (80 bar), NC swivel rotary table, tool changer & chip conveyor. The Z-axis motor was replaced in 2025, and the spindle was already replaced in 2015 at 7,100 operating hours. The machine is in a well-maintained condition and can be inspected under power at any time. Please refer to further technical details in the attachement of the offer. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #Tags: C30U | C-30U | C-30 U

Condition: used, Year of construction: 2000, x-travel 800 mm y-travel 600 mm z-travel 500 mm Guodey T Sckspfx Albjc Control Heidenhain spindle tunring speed 15.000 U/min tool taper SK 40 table surface area ø630 mm In our estimation, the machine is in good used condition and can be inspected under power by appointment. Accessories, as well as the tools and clamping devices shown in the images, are included in the scope of delivery only if explicitly noted in the additional information. Subject to changes, errors in technical data and specifications, and prior sale!

Condition: like new (used), Year of construction: 2025, functionality: fully functional, total width: 600 mm, total height: 750 mm, total length: 2,000 mm, conveying length: 2,000 mm, construction width: 500 mm, construction height: 750 mm, overall weight: 65 kg, Manufacturer: TAF Year of manufacture: 2025 Overall dimensions (LxWxH) in mm: 2,000 x 600 x 750 Width including side panel in mm: 600 Overall height in mm: 750 Conveyor length in mm: 2,000 Conveyor width in mm: 600 Base structure: Supports, castors (2 pieces) Base plate, material: steel segments 600 x 500 Roller spacing in mm: 100 Ball roller material: steel Ball roller diameter in mm: 15 Gedpfx Aleza Dgyobjuc Drive: none Net weight: 65 Condition: used / fully functional Functional test: OK

Condition: used, Year of construction: 1990, pressure 60 t throat 400 mm stroke 600 mm dayligth 700 mm table surface area 1120 x 700 mm table height over floor 850 mm ram surface 700 x 700 mm feed down 300 mm/sec Gsdpevut Edefx Albouc feed up 130 / 260 mm/sec feed under pressure 5 / 10 mm/sec oil volume 275 l total power requirement 7,5 kW weight of the machine ca. 7,3 t required space 1,6 x 2,0 x 3,7 m with oil-hydraulic drive, controllable dependant on pressure/time and way, two-hand operation

Condition: ready for operation (used), Year of construction: 2000, operating hours: 38,515 h, spindle speed (max.): 10,000 rpm, overall weight: 6,500 kg, travel distance X-axis: 450 mm, travel distance Y-axis: 300 mm, travel distance Z-axis: 400 mm, controller manufacturer: HEIDENHAIN, controller model: iTNC 426, number of axes: 5, This 5-axis HERMLE C 600 U was manufactured in 2000. It features an X-axis travel of 450 mm, Y-axis travel of 300 mm, and Z-axis travel of 400 mm, providing versatile machining capabilities. The machine is equipped with a HSK 63 tool holder and a Heidenhain iTNC 426 CNC control for precision operations. If you are looking to get high-quality machining capabilities, consider the HERMLE C 600 U universal machining centre we have for sale. Contact us for further details. • Interference circle (Störkreis): 400 mm • Operation voltage: 400 V (3 phase, 50 Hz) Gsdpfxjyz Tyge Albsuc • Control voltage: 24 V (DC) • Total nominal current: 63 A • Total power rating: 42 kVA • Spindle on: 38,515 hours • Axes in motion: 36,413 hours • CTS • Chip conveyor Technical Specification Taper Size HSK 63

Year of construction: 1985, condition: ready for operation (used), Voltage: 380V, current consumption: 125/118A, control system: Philips B2T 6, equipment: hydraulically actuated turret vorhanden, enclosed working area with slant bed geometry, hydraulic clamping system, piping, condition: fully functional, very good mechanical condition, visually well maintained, partially overhauled, tool turret: angular position encoder completely renewed, turret indexes absolutely faultlessly and precisely according to the data sheet, CNC control system: power supply professionally overhauled, main spindle drive: power section/drive completely overhauled, with power chuck and base jaws. An on-site inspection is possible. Gedpfjy U Nqnex Albjuc

Year of construction: 2002, condition: excellent (used), HERMLE C 800 U CNC machining center Accessories incl.: among others: 3D touch probe, tool holder set, various clamping devices, chip tray, hydr. aggregate, double back-up Technical Data speed: 0- 18`000 rpm spindle nose: HSK-A63 Feeding speed: 1-35 m/min feed force: 8000 N X-axis: 800 mm Y-axis: 600 mm Z-axis: 500 mm dimensions of the machine: 2700 x 2210 x 2930 mm Weight: 8500 kg Gujdpfomqk E Tox Albjc No responsibility is taken for the accuracy, completeness and timeliness of the information.

Condition: good (used), Year of construction: 2015, C 22 U + IH 30 handling system + ZM 192 additional magazine Machine parameters: Travel in X, Y, Z axes: 450, 600, 330 mm Max. spindle speed: 18000 HSK-A63 rpm Description: The machine is in good technical condition, test operation is possible by prior arrangement. Equipped with Hardware KinematicOpt, centre cooling 80 bar, BLUM LC 50 TL200, Renishaw TNC 640. Original price was approx. €570,000. Comprehensive specification of supplied components and options available – will be provided upon request. Guodpoy Rgfzjfx Alboc

Condition: used, Year of construction: 2012, x-travel 850 mm y-travel 700 mm z-travel 500 mm Control Siemens 840 D rotary table 800 mm c-axis 0.001º ( ±360º) 0 B-axis (table) º mm number of spindle speeds 18.000 U/min/rpm tool taper HSK 63 Tools changer 38 fach/tools Gusdeyxy E Ropfx Albsc Internal cooling system 80 bar total power requirement 43 kVA weight of the machine ca. 10,6 t Equipment- Paper belt filter – 200 l tank- Active control cabinet cooling- Infrared probe M&H (Heidenhain)- Laser tool measuring system Blum- Chip conveyor- Cleaning pistol with pump 2 bar / 40 l min- 3D Quick Set- Electronic handwheel

Condition: used, Year of construction: 2009, travel -x axis 600 mm travel -y axis 450 mm travel -z axis 450 mm control HEIDENHAIN - TNC 530 Godpfx Aeyy A N Uolbjuc number of spindle speeds 18.000 U/min tool taper HSK-A63 numbers of positions in the tool changer 120 5-axis simultaneous machining center | HERMLE - C 20 U equipped with ITC (80 bar), NC swivel rotary table, 120-way tool changer & pallet changer. The machine is in a well-maintained condition and can be inspected under power at any time in the Swiss factory location. The machine videos from the production plant will be shared on request. Please refer to further technical details in the attachement of the offer. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #Tags: C 20 | C20 | C-20 | C20U

Year of construction: 2011, condition: excellent (used), SÄGE SICA TRS/C/SY/U/CNC. 32-250 , PLANETARY TUBE SAW Central clamping for pipe fixing Gusdpfeyru Eqox Albec Application: Cutting and Chanfering of PVC, PE, PP PIPES With chip extraction fan Minimum diameter 32mm Max diameter 250mm Year of construction 2011 Machine locations: Sachal extrusion machines D-26345 Bockhorn-Grabstede Bahnhofstrasse 6 The machine is my property.

Condition: excellent (used), HERMLE C 42 U is a 2 x 5‑axis machining centres with loading robot, engineered for high precision and reliability. Table 400×400 mm, table load 450 kg, travels X800 Y800 Z550 mm, A ±130°. Spindle HSK‑A63 0–18,000 rpm, 42 kW, 148 Nm; rapid 45/45/40 m/min. Tool magazines 42+160, 54 pallets, KUKA robot, coolant 80 bar, Renishaw/BLUM. Suited for tight tolerances in automotive, aerospace, watchmaking, medical. Guedpeyxn Dnsfx Albec

Condition: excellent (used), Year of construction: 1998, Heidenhain TNC 426 control Travel X/Y/Z: 600/450/450 mm Gsdpsyrirrsfx Albouc Spindle speed 10,000 rpm Tool magazine for 30 tools, SK 40