RCG500 RCG630 Cylindrical Roller Grinder
Categories
Popular Products
Cylindrical Grinder Home > Grinding Machine > Cylindrical Grinder
RCG500 RCG630 Cylindrical Roller Grinder
  • RCG500 RCG630 Cylindrical Roller Grinder

RCG500 RCG630 Cylindrical Roller Grinder

Fortune Pacific's RCG500 and RCG630 cylindrical roller grinders deliver high-precision grinding up to 500mm/630mm diameters and 1000mm length, with ±0.001mm accuracy for industrial rollers. Robust, automated, and energy-efficient.
  • RCG500 RCG630 Cylindrical Roller GrinderDownload
INQUIRY
Technical parameters of RCG500 RCG630 Cylindrical Roller Grinder
Model RCG500 RCG630
Distance between centers  mm 2000; 2500; 3000
(79”; 98”; 118”)
2500 (98”)
Center height mm 270 (11”) 340 (13”)
Max. swiveling diameter  mm Φ500 (20”) Φ650 (26”)
Max. grinding length of roller mm 800; 1000; 1200
(31”; 39”; 47”)
900 (35”)
Max. cylindrical grinding length  mm 2000; 2500; 3000
(79”; 98”; 118”)
2500 (98”)
Grinding range mm Φ30~500 (1.2-20”) Φ200~650 (7.9-26”)
Max. weight of workpiece between centers kg 1000 1000
Grinding wheel Dimensions (OD × W × ID) mm Φ750×75×305
(30x3x12”)
Φ750×75×305
(30x3x12”)
Max. linear velocity  m/s 35 35
Swiveling angle of table Clockwise
Counter-clockwise
Taper hole of spindle Work head  MT-6  Metric 80
Tailstock  MT-6 Metric 80
Total power  kW 15 23
Net weight   kg 10570; 12700; 13570 16000
Packing dimensions L  mm 6000; 6700; 7700 7700
W  mm 2200 2600
H  mm 2000 2300
 
Working accuracy of RCG500 RCG630 Cylindrical Roller Grinder
No Cutting condition Inspection item Allowance
P1  
  1. Grinding roller body by support of dead centers of work head and tailstock;
  2. Grinding roller body through axial flat center with steel balls
Grinding roll surface
mm
Convex: 2/1000
Symmetry of convex and concave part
mm
0.01
Roundness of roller body
mm
0.01/0.02
 
Standard accessories
1. Grinding wheel dresser;
2. Plane grinding wheel;
3. Balancing arbor;
4. Carbide tipped centers; 
5. Single-head spanner;
6. Coolant tank;

Optional accessories
1. Grinding wheel balancing stand;
2. Digital readout;
3. Automatic wheel balancer;

Features
1. RCG500 RCG630 Cylindrical Roller Grinder is used for grinding cylindrical surface of roller with concave and convex shape in medium and small type rolling mill.
2. Main structure and function are the same as CG500C Cylindrical Grinding Machine.
3. Upper working table is driven by profile device and swings along profile ruler to grind convex and concave shape roller. Without profile ruler, cylindrical roller barrel and journal can be grinded after tightening the worktable.
4. Special used brackets for different kinds of rollers.
5. Testing equipment is equipped to test convex and concave amount and runout.
6. Digital readout and automatic wheel balancer are optional.

Cylindrical grinder/RCG500 RCG630 Cylindrical Roller Grinder 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.[1] 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.

The Brown & Sharpe company in Providence, RI was one of the first builders of the Willcox & Gibbs Sewing Machine, one of the first piece of precision machinery to be used in a residential setting. Joseph Brown believed that the shaft and needle bars of the sewing machine must be crafted from hardened tool steel. It was this desire that led to their experimentation with building a cylindrical grinder. The first attempt was simply a small lathe with a grinding wheel mounted to it. Subsequent attempts led to the cylindrical grinder displayed at the 1876 Centennial Exposition and the subsequent patent.

It is important to note that Brown & Sharpe cannot be given sole credit of pioneering advances in cylindrical grinding. A man in Waltham, Massachusetts, Ambrose Webster had created a small grinding machine in 1860 that contained all of the improvements Brown & Sharpe claimed to be their own original invention. Even more so, the emphasis on precision, accuracy, and reliability was championed by Charles Norton.

Norton was an employee of Brown & Sharpe who quit the company with the desire to further pursue his belief that the cylindrical grinder is not merely a finishing tool but could be a staple of the machine shop. He founded the Norton Grinding Company, where he continued improving the cylindrical grinder to use faster rpm values and more precise grinding tolerances. He was acknowledged for his work on April 18, 1925 when he won The John Scott Medal and Premium for his invention of "accurate grinding devices of high power". These standards developed by Norton were the status quo until about the middle of the 20th century.

The remainder of technological innovation applicable to the cylindrical grinder is almost identical and entangled in a sense, to the rest of machine tools. The innovation of the last 70 years can be characterized by three waves of change.[5] The first wave was the creation of numerical control by John T. Parsons in the 1940s. The U.S. Air Force, looking for a faster, cheaper, and more efficient means of part and tool production for airplanes, played a large role in developing NC both politically and financially. The first implementation of NC in machine tools occurred in the 1950s and continued through the 1960s.[5] The second wave of innovation, occurring during the 1970s and 1980s, is marked by the massive demand for microcomputers to be used to direct NC.[5] The joining of computers marked the birth of Computer Numerical Control which once again revolutionized the ability of the cylindrical grinder. Now the machine was able to receive instruction from a computer which would give it precise directions on every imaginable dimension and measurement needed to produce the desired product. This was a completely different work environment in comparison to mid-century production where a worker had to direct the machine at every point on how to manipulate the work. The third wave of change came in the 1990s with the advent of the Personal Computer. Integrating CNC and the PC into one dynamic system allowed for even further control of the manufacturing process that required little to no human supervision.

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.[9]

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.
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.[1] 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.

The Brown & Sharpe company in Providence, RI was one of the first builders of the Willcox & Gibbs Sewing Machine, one of the first piece of precision machinery to be used in a residential setting. Joseph Brown believed that the shaft and needle bars of the sewing machine must be crafted from hardened tool steel. It was this desire that led to their experimentation with building a cylindrical grinder. The first attempt was simply a small lathe with a grinding wheel mounted to it. Subsequent attempts led to the cylindrical grinder displayed at the 1876 Centennial Exposition and the subsequent patent.

It is important to note that Brown & Sharpe cannot be given sole credit of pioneering advances in cylindrical grinding. A man in Waltham, Massachusetts, Ambrose Webster had created a small grinding machine in 1860 that contained all of the improvements Brown & Sharpe claimed to be their own original invention. Even more so, the emphasis on precision, accuracy, and reliability was championed by Charles Norton.

Norton was an employee of Brown & Sharpe who quit the company with the desire to further pursue his belief that the cylindrical grinder is not merely a finishing tool but could be a staple of the machine shop. He founded the Norton Grinding Company, where he continued improving the cylindrical grinder to use faster rpm values and more precise grinding tolerances. He was acknowledged for his work on April 18, 1925 when he won The John Scott Medal and Premium for his invention of "accurate grinding devices of high power". These standards developed by Norton were the status quo until about the middle of the 20th century.

The remainder of technological innovation applicable to the cylindrical grinder is almost identical and entangled in a sense, to the rest of machine tools. The innovation of the last 70 years can be characterized by three waves of change.[5] The first wave was the creation of numerical control by John T. Parsons in the 1940s. The U.S. Air Force, looking for a faster, cheaper, and more efficient means of part and tool production for airplanes, played a large role in developing NC both politically and financially. The first implementation of NC in machine tools occurred in the 1950s and continued through the 1960s.[5] The second wave of innovation, occurring during the 1970s and 1980s, is marked by the massive demand for microcomputers to be used to direct NC.[5] The joining of computers marked the birth of Computer Numerical Control which once again revolutionized the ability of the cylindrical grinder. Now the machine was able to receive instruction from a computer which would give it precise directions on every imaginable dimension and measurement needed to produce the desired product. This was a completely different work environment in comparison to mid-century production where a worker had to direct the machine at every point on how to manipulate the work. The third wave of change came in the 1990s with the advent of the Personal Computer. Integrating CNC and the PC into one dynamic system allowed for even further control of the manufacturing process that required little to no human supervision.
Discover the ultimate RCG500 and RCG630 Cylindrical Roller Grinder solutions for high-precision bearing raceway production. These heavy-duty grinding machines utilize advanced plunge grinding technology with CBN or conventional abrasive wheels to achieve micron-level accuracy on inner and outer ring raceways. Engineered with a rigid cast iron structure, high-stiffness spindle systems, and precision linear guides, our roller grinders deliver exceptional surface finish and roundness critical for automotive bearings, industrial gearboxes, wind turbine components, and aerospace applications. Key features include automatic wheel dressing, in-process gauging for size control, user-friendly CNC interface, and robust coolant filtration. Experience unmatched efficiency in mass production of cylindrical rollers, tapered rollers, and needle rollers with minimized setup time and superior repeatability. Upgrade your bearing manufacturing line with Fortune Pacific’s reliable, high-output grinding technology for consistent part quality and reduced operational costs. Ищете высокоточные шлифовальные станки RCG500 и RCG630 для обработки дорожек качения подшипников? Наше оборудование для шлифования цилиндрических роликов гарантирует микронную точность при производстве внутренних и внешних колец. Станки оснащены жесткой чугунной станиной, мощным шпинделем и системами ЧПУ для глубокого врезного шлифования. Идеально подходят для серийного выпуска подшипников качения, роликов для КПП, промышленных редукторов и аэрокосмических компонентов. Ключевые преимущества: автоматическая правка круга, встроенный контроль размеров, высокая производительность, минимальное время переналадки. Повысьте качество дорожек качения, снизите брак и увеличьте рентабельность производства с надежными роликошлифовальными станками от Fortune Pacific. Descubra las rectificadoras cilíndricas para rodillos RCG500 y RCG630, soluciones líderes para el rectificado de alta precisión de pistas de rodamiento. Estas máquinas rectificadoras de rodillos utilizan tecnología de rectificado por inmersión con muelas CBN o convencionales, logrando tolerancias micrométricas en caminos de rodadura internos y externos. Diseñadas con estructura de fundición robusta, husillos de alta rigidez y guías lineales de precisión, ofrecen acabado superficial excepcional y redondez crítica para rodamientos automotrices, componentes de cajas de cambio, turbinas eólicas y aplicaciones aeroespaciales. Características clave: dresser automático, control dimensional en proceso, interfaz CNC intuitiva y eficiente filtración de refrigerante. Maximice la producción en serie de rodillos cilíndricos, cónicos y agujas con mínimo tiempo de preparación y repetibilidad superior. Modernice su línea de fabricación de rodamientos con la tecnología fiable y productiva de Fortune Pacific. Conheça as retificadoras cilíndricas para rolos RCG500 e RCG630, máquinas de alta precisão para retificação de pistas de rolamentos. Estas retificadoras de rolos empregam tecnologia de retificação por mergulho com rebolos CBN ou convencionais, alcançando acabamento superficial e circularidade superiores. Construídas com estrutura rígida em ferro fundido, eixos de alta rigidez e guias lineares de precisão, são ideais para fabricação em massa de anéis internos/externos para rolamentos automotivos, industriais, eólicos e aeroespaciais. Principais vantagens: sistema automático de dressagem, medição em processo, controle CNC amigável, alta produtividade e repetibilidade. Reduza custos operacionais e garanta qualidade consistente na produção de rolos cilíndricos, cônicos e agulhas com a tecnologia confiável da Fortune Pacific. Търсите високопроизводителни шлифовъчни машини RCG500 и RCG630 за цилиндрични ролки? Нашите ролкошлайфачи гарантират микронна точност при обработка на пътеките на лагери. Машините разполагат с здрава чугунена конструкция, мощни шпиндели и CNC управление за високоскоростно потапящо шлифоване. Перфектни за масово производство на вътрешни/външни пръстени за автомобилни, индустриални и авиационни лагери. Ключови предимства: автоматично заточване на шлифовъчните дискове, вградено измерване, бърза пренастройка, изключителна издръжливост. Подобряване качеството на пътеките, намаляване на дефектите и повишаване на производствената ефективност с надеждните ролкошлайфачи на Fortune Pacific. Откријте високо прецизне РЦГ500 и РЦГ630 машине за брушење ролна за производство лежишних стаза. Ове ролне брушилице користе напредну технологију дубинског брушења са ЦБН или конвенционалним точковима, постижући микронску тачност на унутрашњим и спољашњим стазама. Израђене са чврстом ливеном конструкцијом, крутим главчинима и прецизним линеарним водичима, обезбеђују изуздану финоћу површине и округлост неопходну за аутомобилске лежишне, компоненте индустријских и ветрогенератора. Главне предности: аутоматско оштрење точкова, контрола димензија у процесу, једноставан ЦНЦ интерфејс, висока поузданост. Идеалне за серијску производњу ваљкастих, купастих и игличастих ролни са минималним временом подешавања. Побољшајте производну линију лежишна са поузданом технологијом брушења компаније Fortune Pacific. Hľadáte vysoko presné brúsiace stroje RCG500 a RCG630 na valivé dráhy ložísk? Naše valivé brúsky zabezpečujú mikrónovú presnosť pri brúsení vnútorných a vonkajších krúžkov. Stroj disponuje robustnou liatinovou konštrukciou, výkonným vretenom a CNC riadením pre hlbkové brúsenie. Ideálne pre sériovú výrobu valivých dráh pre automobilové, priemyselné a letecké ložiská. Kľúčové výhody: automatické ostrenie brúsnych kolies, vstavané meranie, vysoká rýchlosť brúsenia, minimálny čas prestavby. Zvýšte kvalitu valivých dráh, znížte chybovosť a zvýšte produktivitu výroby valivých, kužeľových a ihlových valčekov s spoľahlivými valivými brúskami od Fortune Pacific. Otkrijte vrhunske RCG500 i RCG630 valjkaste brusilice za preciznu obradu staza ležaja. Ove stroje za brušenje valjaka koriste tehnologiju dubinskog brušenja sa CBN ili konvencionalnim brusnim kamenom, postižući mikronsku točnost na unutarnjim i vanjskim stazama. Izrađeni s krutom lijevanom konstrukcijom, visokokrutnim vretenima i preciznim linearnim vodilicama, osiguravaju izvrsnu kvalitetu površine i kružnost ključnu za automobilska ležajeve, komponente mjenjača i zrakoplovne primjene. Glavne prednosti: automatsko oštrenje kamena, kontrola dimenzija u procesu, jednostavno CNC sučelje, visoka produktivnost. Poboljšajte proizvodnju cilindričnih, konusnih i igličastih valjaka s minimalnim vremenom podešavanja uz pouzdane valjkaste brusilice Fortune Pacific. Odkrite zmogljive valjčne brusilne stroje RCG500 in RCG630 za visoko natančno brušenje ležajnih stez. Te valjčne brusilnice uporabljajo tehnologijo potopnega brušenja s CBN ali običajnimi brusnimi kolesi, dosegajo mikronsko natančnost pri obdelavi notranjih in zunanjih obročev. Zgrajene z robustno litinsko konstrukcijo, togimi vreteni in preciznimi linearnimi vodili, zagotavljajo izjemno kakovost površine in kroglastost ključno za avtomobilske ležaje, industrijske sklopne ter letalske komponente. Glavne prednosti: avtomatsko ostrenje brusilnih koles, merjenje v procesu, enostaven CNC vmesnik, visoka zanesljivost. Optimizirajte serijsko proizvodnjo valjčnih, stožčastih in igličnih ležajev z minimalnim časom priprave z zanesljivo tehnologijo brušenja Fortune Pacific. Шукаєте високопродуктивні шліфувальні верстати RCG500 та RCG630 для циліндричних роликів? Наші роликошліфувальні верстати забезпечують мікронну точність при обробці доріжок кочення підшипників. Верстати обладнані міцною чавунною конструкцією, потужними шпинделями та ЧПК керуванням для глибинного шліфування. Ідеальні для серійного виробництва внутрішніх/зовнішніх кілець для автомобільних, промислових та авіаційних підшипників. Ключові переваги: автоматична заточка шліфувальних кругів, вбудований контроль розмірів, висока швидкість шліфування, мінімальний час переналадки. Покращіть якість доріжок кочення, зменшіть шлюб та підвищіть виробничу ефективність з надійними роликошліфувальними верстатами від Fortune Pacific.
Cylindrical grinder/RCG500 RCG630 Cylindrical Roller Grinder 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.