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CG800 Cylindrical Grinding Machine
CG800 heavy-duty cylindrical grinder: 800mm max Ø, 4000mm grinding length, CNC precision. Handles OD/ID grinding, 15kW spindle, auto feeds. Rigid design for large shafts, rolls, bearings. High-accuracy industrial grinding machine.
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Technical parameters of CG800 Cylindrical Grinding Machine
Features
The well designed structure of CG800 Cylindrical Grinding Machine ensures excellent processing capability.
The working table longitudinal travel is driven by hydraulic cylinder.
The base of the slide way is equipped with TF, and has been precisely manual scraped
Super strong wheel head spindle is support by bimetal shell bearing, and this structure makes the spindle have high rigidity and stability, as well as excellent finishing surface.
The wheel head could achieve power feed, and total feed could be set through adjusting the stop dog.
Head stock spindle is equipped with inverter motor; therefore the operator could adjust speed through the inverter panel quite easily.
Treadle which can spread or draw back the tail stock quill allows the operator to load workpiece by hand easily.
Standard accessories
1. Flange;
2. Three-jaw chuck;
3. Balance arbor;
4. Dog pole and arm;
5. Table swiveling wrench;
6. Alloy center;
7. Coolant tank;
8. Wheel;
9. Wheel extractor;
10. Wedge;
Optional accessories
1. Steady rest;
2. Radial dresser;
3. End dresser;
4. Balance stand;
Cylindrical grinder/Cylindrical Grinding Machine is a type of grinding machine used to shape the outside of an object. The cylindrical grinder can work on a variety of shapes, however the object must have a central axis of rotation. This includes but is not limited to such shapes as a cylinder, an ellipse, a cam, or a crankshaft.
A cylindrical grinder
Cylindrical grinder/Cylindrical Grinding Machine is defined as having four essential actions:
The work (object) must be constantly rotating;
The grinding wheel must be constantly rotating;
The grinding wheel is fed towards and away from the work;
Either the work or the grinding wheel is traversed with respect to the other.
While the majority of cylindrical grinders employ all four movements, there are grinders that only employ three of the four actions.
History of cylindrical grinder
The origins of the cylindrical grinder, as with all other modern machine tools, stem from the experimentation and invention of John Wilkinson and later Henry Maudslay who built the first horizontal boring machine and the first engine lathe, respectively. The cylindrical grinder owes much of its development from the onset of the Industrial Revolution, particularly to the advent of reliable, inexpensive steel production and later the improvement of the grinding wheel. The basis for the modern day cylindrical grinder was first built in the 1830s by two men working independently, Jonathan Bridges and James Wheaton . It is unclear as to which man had first produced the machine but both are closely tied to the first historical appearance of the modern day tool. It took another 40 years before further improvement and refinement of the tool occurred.
Types of cylindrical grinder/Cylindrical Grinding Machine
There are five different types of cylindrical grinding: outside diameter (OD) grinding, inside diameter (ID) grinding, plunge grinding, creep feed grinding, and centerless grinding.
Outside diameter grinding
OD grinding is grinding occurring on external surface a of an object between the centers. The centers are end units with a point that allow the object to be rotated. The grinding wheel is also being rotated in the same direction when it comes in contact with the object. This effectively means the two surfaces will be moving opposite directions when contact is made which allows for a smoother operation and less chance of a jam up.
Inside diameter grinding
ID grinding is grinding occurring on the inside of an object. The grinding wheel is always smaller than the width of the object. The object is held in place by a collet, which also rotates the object in place. Just as with OD grinding, the grinding wheel and the object rotated in opposite directions giving reversed direction contact of the two surfaces where the grinding occurs.
Plunge grinding
A form of OD grinding, however the major difference is that the grinding wheel makes continuous contact with a single point of the object instead of traversing the object.
Creep feed grinding
Creep Feed is a form of grinding where a full depth of cut is removed in a single pass of the wheel. Successful operation of this technique can reduce manufacturing time by 50%, but often the grinding machine being used must be designed specifically for this purpose. This form occurs in both cylindrical and surface grinding.
Centerless cylindrical grinder
A schematic of the centerless grinding process.
Centerless grinding is a form of grinding where there is no collet or pair of centers holding the object in place. Instead, there is a regulating wheel positioned on the opposite side of the object to the grinding wheel. A work rest keeps the object at the appropriate height but has no bearing on its rotary speed. The workblade is angled slightly towards the regulating wheel, with the workpiece centerline above the centerlines of the regulating and grinding wheel; this means that high spots do not tend to generate corresponding opposite low spots, and hence the roundness of parts can be improved. Centerless grinding is much easier to combine with automatic loading procedures than centered grinding; throughfeed grinding, where the regulating wheel is held at a slight angle to the part so that there is a force feeding the part through the grinder, is particularly efficient.
Control methods
There are three basics ways in which an operator can interact with a cylindrical grinder. Either manual manipulation of the machine, Numerical Control with a punched card system or using Computer Numerical Control using a pre existing interface designed for that machine or by using a PC as an interface to communicate with the grinder. The first two options are rarely if ever used today. CNC operated cylindrical grinders are the most technologically advanced, efficient, reliable systems in the manufacturing industry.
Applications
The cylindrical grinder is responsible for a plethora of innovations and inventions in the progression of science and technology. Any situation in which extremely precise metalworking is required, the cylindrical grinder is able to provide a high level of precision.[citation needed] From the automotive industry to military applications, the benefits of the cylindrical grinder are numerous.
| Main parameters | Unit | CG800 |
|---|---|---|
| Distance between centers | mm | 3000; 4000; 5000 (118”; 157”; 197”) |
| Center height | mm | 500 (20”) |
| Dia. Ground(O.D) | mm | Φ50~800 (2-31”) |
| Max length ground(O.D) | mm | 3000; 4000; 5000 (118”; 157”; 197”) |
| Max weight of workpiece | kg | 3000 |
| Workhead center taper | Metric 80 | |
| Workhead spindle speed | r/min | 50HZ: 10~100 stepless |
| Wheel spindle speed | r/min | 870 |
| Wheelhead rapid travel | mm | 100 (3.9”) |
| Wheelhead max travel | mm | 550 (22”) |
| Wheelhead hand feed per. rev | mm | Rough: 4; Fine: 0.5 |
| Wheelhead hand feed per. gra | mm | Rough: 0.02; Fine: 0.0025 |
| Wheel size( OD x W x ID) | mm | Φ750x75x305 (30x3x12”) |
| Peripheral velocity | m/s | 35 |
| Table hand feed per. rev | mm | 5 |
| Max swiveling angle of table: Clockwise | ° | 1°(3000; 4000; 5000) |
| Max swiveling angle of table: Anticlockwise | ° | 3°(3000); 2.5°(4000); 1°(5000) |
| Longitudinal speed range of table | m/min | 0.1~2.5 |
| Tailstock center tape | Metric 80 | |
| Tailstock quill travel | mm | 70 (2.8”) |
| Wheelhead motor power | kW | 22 |
| Workhead motor power | kW | 15 |
| Gross weight | kg | 30000(3000); 36000(4000); 41000(5000) |
| Packing size(L x W x H) | mm | 8900x2600x2300(3000); 11000x2600x2300(4000); Disperse pack L:12500(5000) |
Features
The well designed structure of CG800 Cylindrical Grinding Machine ensures excellent processing capability.
The working table longitudinal travel is driven by hydraulic cylinder.
The base of the slide way is equipped with TF, and has been precisely manual scraped
Super strong wheel head spindle is support by bimetal shell bearing, and this structure makes the spindle have high rigidity and stability, as well as excellent finishing surface.
The wheel head could achieve power feed, and total feed could be set through adjusting the stop dog.
Head stock spindle is equipped with inverter motor; therefore the operator could adjust speed through the inverter panel quite easily.
Treadle which can spread or draw back the tail stock quill allows the operator to load workpiece by hand easily.
Standard accessories
1. Flange;
2. Three-jaw chuck;
3. Balance arbor;
4. Dog pole and arm;
5. Table swiveling wrench;
6. Alloy center;
7. Coolant tank;
8. Wheel;
9. Wheel extractor;
10. Wedge;
Optional accessories
1. Steady rest;
2. Radial dresser;
3. End dresser;
4. Balance stand;
Cylindrical grinder/Cylindrical Grinding Machine is a type of grinding machine used to shape the outside of an object. The cylindrical grinder can work on a variety of shapes, however the object must have a central axis of rotation. This includes but is not limited to such shapes as a cylinder, an ellipse, a cam, or a crankshaft.
A cylindrical grinder
Cylindrical grinder/Cylindrical Grinding Machine is defined as having four essential actions:
The work (object) must be constantly rotating;
The grinding wheel must be constantly rotating;
The grinding wheel is fed towards and away from the work;
Either the work or the grinding wheel is traversed with respect to the other.
While the majority of cylindrical grinders employ all four movements, there are grinders that only employ three of the four actions.
History of cylindrical grinder
The origins of the cylindrical grinder, as with all other modern machine tools, stem from the experimentation and invention of John Wilkinson and later Henry Maudslay who built the first horizontal boring machine and the first engine lathe, respectively. The cylindrical grinder owes much of its development from the onset of the Industrial Revolution, particularly to the advent of reliable, inexpensive steel production and later the improvement of the grinding wheel. The basis for the modern day cylindrical grinder was first built in the 1830s by two men working independently, Jonathan Bridges and James Wheaton . It is unclear as to which man had first produced the machine but both are closely tied to the first historical appearance of the modern day tool. It took another 40 years before further improvement and refinement of the tool occurred.
Types of cylindrical grinder/Cylindrical Grinding Machine
There are five different types of cylindrical grinding: outside diameter (OD) grinding, inside diameter (ID) grinding, plunge grinding, creep feed grinding, and centerless grinding.
Outside diameter grinding
OD grinding is grinding occurring on external surface a of an object between the centers. The centers are end units with a point that allow the object to be rotated. The grinding wheel is also being rotated in the same direction when it comes in contact with the object. This effectively means the two surfaces will be moving opposite directions when contact is made which allows for a smoother operation and less chance of a jam up.
Inside diameter grinding
ID grinding is grinding occurring on the inside of an object. The grinding wheel is always smaller than the width of the object. The object is held in place by a collet, which also rotates the object in place. Just as with OD grinding, the grinding wheel and the object rotated in opposite directions giving reversed direction contact of the two surfaces where the grinding occurs.
Plunge grinding
A form of OD grinding, however the major difference is that the grinding wheel makes continuous contact with a single point of the object instead of traversing the object.
Creep feed grinding
Creep Feed is a form of grinding where a full depth of cut is removed in a single pass of the wheel. Successful operation of this technique can reduce manufacturing time by 50%, but often the grinding machine being used must be designed specifically for this purpose. This form occurs in both cylindrical and surface grinding.
Centerless cylindrical grinder
A schematic of the centerless grinding process.
Centerless grinding is a form of grinding where there is no collet or pair of centers holding the object in place. Instead, there is a regulating wheel positioned on the opposite side of the object to the grinding wheel. A work rest keeps the object at the appropriate height but has no bearing on its rotary speed. The workblade is angled slightly towards the regulating wheel, with the workpiece centerline above the centerlines of the regulating and grinding wheel; this means that high spots do not tend to generate corresponding opposite low spots, and hence the roundness of parts can be improved. Centerless grinding is much easier to combine with automatic loading procedures than centered grinding; throughfeed grinding, where the regulating wheel is held at a slight angle to the part so that there is a force feeding the part through the grinder, is particularly efficient.
Control methods
There are three basics ways in which an operator can interact with a cylindrical grinder. Either manual manipulation of the machine, Numerical Control with a punched card system or using Computer Numerical Control using a pre existing interface designed for that machine or by using a PC as an interface to communicate with the grinder. The first two options are rarely if ever used today. CNC operated cylindrical grinders are the most technologically advanced, efficient, reliable systems in the manufacturing industry.
Applications
The cylindrical grinder is responsible for a plethora of innovations and inventions in the progression of science and technology. Any situation in which extremely precise metalworking is required, the cylindrical grinder is able to provide a high level of precision.[citation needed] From the automotive industry to military applications, the benefits of the cylindrical grinder are numerous.
Discover the CG800 Universal Cylindrical Grinding Machine, your ultimate solution for high-precision external and internal cylindrical grinding operations. This versatile industrial grinder features a robust cast iron base ensuring vibration-free performance and exceptional stability during heavy-duty grinding jobs. Its precision-ground bedways guarantee straightness and parallelism for micron-level accuracy on shafts, bearings, rollers, and hydraulic cylinders across automotive, aerospace, tooling, and general engineering workshops. Key components include a variable-speed workpiece headstock with hydraulic or manual feed options, a powerful grinding wheelhead with dynamic spindle balancing, and an advanced coolant filtration system extending wheel life and improving surface finish. Operators benefit from its user-friendly control panel, rapid wheel dressing capability, and optional CNC integration for complex profiles. Engineered for demanding production environments, the CG800 delivers unmatched reliability, consistent OD/ID grinding results down to 0.001mm tolerances, and superior surface finishes, significantly reducing machining time and operational costs while boosting workshop productivity. Explore industrial cylindrical grinders, precision metal grinding equipment, and heavy-duty surface finishing machines ideal for high-volume manufacturing or job shop versatility. Представляем универсальный круглошлифовальный станок CG800 – идеальное оборудование для высокоточной наружной и внутренней обработки цилиндрических поверхностей. Этот промышленный шлифовальный станок оснащен массивным чугунным основанием, обеспечивающим виброустойчивость и исключительную стабильность при интенсивных шлифовальных работах. Точные направляющие станины гарантируют прямолинейность и параллельность для микронной точности при обработке валов, подшипников, роликов и гидроцилиндров в автомобилестроении, аэрокосмической отрасли, инструментальном производстве и общем машиностроении. Ключевые компоненты: шпиндельная бабка с регулируемой скоростью вращения заготовки (гидро- или ручная подача), мощная шлифовальная бабка с динамической балансировкой шпинделя и продвинутая система фильтрации СОЖ для увеличения срока службы круга и улучшения чистоты поверхности. Операторы ценят интуитивную панель управления, возможность быстрой правки круга и опцию ЧПУ для сложных профилей. Спроектированный для жестких производственных условий, CG800 обеспечивает непревзойденную надежность, стабильные результаты круглого шлифования с допусками до 0,001 мм и превосходную чистоту поверхности, сокращая время обработки и эксплуатационные расходы при повышении производительности цеха. Ищете промышленные шлифовальные станки по металлу, точное шлифовальное оборудование для производства или универсальные решения для мастерских? Descubra la rectificadora cilíndrica universal CG800, la solución definitiva para operaciones de rectificado cilíndrico externo e interno de alta precisión. Esta rectificadora industrial versátil cuenta con una robusta base de hierro fundido que garantiza un desempeño libre de vibraciones y estabilidad excepcional en trabajos de rectificado pesado. Sus guías de precisión aseguran rectitud y paralelismo para una precisión a nivel de micras en ejes, rodamientos, rodillos y cilindros hidráulicos en talleres automotrices, aeroespaciales, de herramientas e ingeniería general. Componentes clave: cabezal porta-pieza con velocidad variable (avance hidráulico o manual), potente cabezal de la muela con equilibrado dinámico del husillo y avanzado sistema de filtración de refrigerante que prolonga la vida útil de la muela y mejora el acabado superficial. Los operadores se benefician de su panel de control intuitivo, capacidad de dressado rápido de la muela e integración CNC opcional para perfiles complejos. Diseñada para entornos productivos exigentes, la CG800 ofrece una fiabilidad inigualable, resultados consistentes en rectificado exterior/interior con tolerancias de 0.001mm y acabados superficiales superiores, reduciendo significativamente tiempos de mecanizado y costos operativos mientras aumenta la productividad del taller. Ideal para rectificado de precisión en serie o trabajos diversos. Conheça a Retificadora Cilíndrica Universal CG800, sua solução definitiva para retificação cilíndrica externa e interna de alta precisão. Esta retificadora industrial versátil possui base robusta em ferro fundido, garantindo desempenho livre de vibrações e estabilidade excepcional em trabalhos pesados de retificação. Suas guias retificadas com precisão asseguram retilineidade e paralelismo para precisão micrônica em eixos, rolamentos, rolos e cilindros hidráulicos nos setores automotivo, aeroespacial, de ferramentaria e usinagem em geral. Componentes principais: cabeçote porta-peça com velocidade variável (avanço hidráulico ou manual), potente cabeçote da roda abrasiva com balanceamento dinâmico do fuso e sistema avançado de filtragem de fluido de corte que prolonga a vida útil da rebolo e melhora o acabamento superficial. Operadores beneficiam-se do painel de controle intuitivo, capacidade de dressagem rápida da roda e opção de integração CNC para perfis complexos. Projetada para ambientes de produção exigentes, a CG800 oferece confiabilidade inigualável, resultados consistentes em retificação OD/ID com tolerâncias de 0.001mm e acabamentos superficiais superiores, reduzindo significativamente tempo de usinagem e custos operacionais enquanto aumenta a produtividade da oficina. Perfeita para retificação de produção em série ou trabalhos diversificados em oficinas mecânicas. Temukan Mesin Gerinda Silinder Universal CG800, solusi utama Anda untuk operasi penggerindaan silinder eksternal dan internal presisi tinggi. Mesin gerinda industri serbaguna ini menampilkan dasar besi cor kokoh yang memastikan kinerja bebas getaran dan stabilitas luar biasa selama pekerjaan penggerindaan berat. Bedway-nya yang digerinda presisi menjamin kelurusan dan paralelisme untuk akurasi tingkat mikron pada poros, bantalan, rol, dan silinder hidraulik di berbagai bengkel otomotif, dirgantara, perkakas, dan teknik umum. Komponen utama mencakup headstock benda kerja kecepatan variabel (umpan hidraulik atau manual), wheelhead gerinda bertenaga dengan penyeimbang spindle dinamis, serta sistem filtrasi coolant canggih yang memperpanjang umur roda gerinda dan meningkatkan hasil permukaan. Operator diuntungkan oleh panel kontrol ramah pengguna, kemampuan dressing roda cepat, dan integrasi CNC opsional untuk profil kompleks. Dirancang untuk lingkungan produksi menuntut, CG800 memberikan keandalan tak tertandingi, hasil penggerindaan OD/ID konsisten hingga toleransi 0.001mm, dan hasil permukaan superior, secara signifikan mengurangi waktu pengerjaan dan biaya operasional sekaligus meningkatkan produktivitas bengkel. Cocok untuk mesin gerinda presisi produksi massal atau kebutuhan bengkel serbaguna. دستگاه سنگ زنی استوانهای یونیورسال CG800 را کشف کنید، راهحل نهایی شما برای عملیات سنگ زنی سطوح استوانهای خارجی و داخلی با دقت بالا. این دستگاه سنگ صنعتی همهکاره دارای پایهای مستحکم از چدن است که عملکرد بدون لرزش و پایداری استثنایی را در حین کارهای سنگزنی سنگین تضمین میکند. راهگاههای با دقت سنگخورده آن، صافی و موازیبودن را برای دستیابی به دقتی در سطح میکرون بر روی شفتها، یاتاقانها، رولرها و سیلندرهای هیدرولیک در صنایع خودروسازی، هوافضا، ابزارسازی و کارگاههای مهندسی عمومی فراهم میکند. اجزای اصلی شامل هد قطعهکار با سرعت متغیر (فید هیدرولیک یا دستی)، هد سنگ قدرتمند با بالانس دینامیکی اسپیندل و سیستم پیشرفته فیلتراسیون خنککننده برای افزایش عمر سنگ و بهبود پرداخت سطح میشود. اپراتورها از پنل کنترل کاربرپسند، امکان اصلاح سریع سنگ و امکان یکپارچهسازی CNC برای پروفیلهای پیچیده بهره میبرند. طراحی شده برای محیطهای تولیدی پرچالش، CG800 قابلیت اطمینان بینظیر، نتایج ثابت سنگزنی خارجی/داخلی با تلرانس ۰/۰۰۱ میلیمتر و پرداخت سطح عالی را ارائه میدهد و ضمن افزایش بهرهوری کارگاه، زمان ماشینکاری و هزینههای عملیاتی را بهطور چشمگیری کاهش میدهد. ایدهآل برای تولید انبوه یا کارگاههای متنوع
Technical parameters of CG800 Cylindrical Grinding Machine
| Main parameters | Unit | CG800 |
|---|---|---|
| Distance between centers | mm | 3000; 4000; 5000 (118”; 157”; 197”) |
| Center height | mm | 500 (20”) |
| Dia. Ground(O.D) | mm | Φ50~800 (2-31”) |
| Max length ground(O.D) | mm | 3000; 4000; 5000 (118”; 157”; 197”) |
| Max weight of workpiece | kg | 3000 |
| Workhead center taper | Metric 80 | |
| Workhead spindle speed | r/min | 50HZ: 10~100 stepless |
| Wheel spindle speed | r/min | 870 |
| Wheelhead rapid travel | mm | 100 (3.9”) |
| Wheelhead max travel | mm | 550 (22”) |
| Wheelhead hand feed per. rev | mm | Rough: 4; Fine: 0.5 |
| Wheelhead hand feed per. gra | mm | Rough: 0.02; Fine: 0.0025 |
| Wheel size( OD x W x ID) | mm | Φ750x75x305 (30x3x12”) |
| Peripheral velocity | m/s | 35 |
| Table hand feed per. rev | mm | 5 |
| Max swiveling angle of table: Clockwise | ° | 1°(3000; 4000; 5000) |
| Max swiveling angle of table: Anticlockwise | ° | 3°(3000); 2.5°(4000); 1°(5000) |
| Longitudinal speed range of table | m/min | 0.1~2.5 |
| Tailstock center tape | Metric 80 | |
| Tailstock quill travel | mm | 70 (2.8”) |
| Wheelhead motor power | kW | 22 |
| Workhead motor power | kW | 15 |
| Gross weight | kg | 30000(3000); 36000(4000); 41000(5000) |
| Packing size(L x W x H) | mm | 8900x2600x2300(3000); 11000x2600x2300(4000); Disperse pack L:12500(5000) |
Control methods
There are three basics ways in which an operator can interact with a cylindrical grinder. Either manual manipulation of the machine, Numerical Control with a punched card system or using Computer Numerical Control using a pre existing interface designed for that machine or by using a PC as an interface to communicate with the grinder. The first two options are rarely if ever used today. CNC operated cylindrical grinders are the most technologically advanced, efficient, reliable systems in the manufacturing industry.
There are three basics ways in which an operator can interact with a cylindrical grinder. Either manual manipulation of the machine, Numerical Control with a punched card system or using Computer Numerical Control using a pre existing interface designed for that machine or by using a PC as an interface to communicate with the grinder. The first two options are rarely if ever used today. CNC operated cylindrical grinders are the most technologically advanced, efficient, reliable systems in the manufacturing industry.
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