- Offer Profile
-
“Okamoto Machine Tool Works Ltd. has been the world’s leading manufacturer of high-quality grinding machines since 1926. But we are more than just manufacturers; we are your partners in precision.”
At Okamoto Europe, our mission is to bring the technological excellence of our Japanese parent company to the diverse and demanding European market. Headquartered in Langen, Germany, we serve as the central logistical and technical hub for the entire continent. We understand that European manufacturers require not just superior machinery, but also rapid support, reliable spare parts availability, and expert application engineering.
Visit us on:
Precision Without Compromise
-
Okamoto is not just an assembler; we are creators. As the global leader in the grinding industry, we pride ourselves on our unique integrated production system. With 90% of parts produced in-house, we manufacture our own castings to ensure total quality control from the ground up.
Headquartered in Langen, Germany, Okamoto Europe GmbH serves as the central hub for the European market, delivering high-end grinding technology, certified training, and rapid spare parts availability to partners across the continent.
Surface Grinding Machnies
Linear 350B
-
Manual precision surface grinding machine
With a grinding length of 350 mm and a cross travel of 150 mm the Linear 350B is ideally suited for the toolroom. It features a high level of standard equipment to ensure easy handling and the manual control allows quick and precise small part production.
- Machine base made of cast iron
- Vibration -reducing construction
- Table slideway with linear rollers
ACC 450AV
-
Precision surface and profile grinding machine
To avoid effects of heat expansion and vibration, the hydraulic unit is isolated from the main unit.
For the purpose of long lifetime and maintenance free operation, the slideways are lubricated automatically via an oil bath at the top of the column. Lubrication oil is automatically pumped to the top oil bath for gravity feed to the slideways, making the lubrication system almost completely fail safe.
The machine features a V-V table and cross slideways for ultimate flatness and straightness. The combination of scraped cross and vertical slideways with low friction Turcite assures accuracy whilst dampening out vibration for the best workpiece surface finish.
- Surface and profile grinding machine
- Available with open cover as shown or with closed cover (open top)
- Popular and well proven latest generation Okamoto PLC controller
ACC GX-Series
-
Okamoto Precision surface grinding machine
With a grinding length of 500 – 1000 mm and a cross travel of 200 – 500 mm the Okamoto GX Series is ideally suited for the toolroom. It features a high level of standard equipment to ensure easy handling, quick and precise small part production. The robust cast iron construction and double-V slideways in both table and crossfeed ensure long term precision.
- Hydraulic surface grinder with automatic reversing saddle feed
- Moving saddle design
- Double-V slideways longitudinal and cross
- PLC controller with proven reliability
- 2 step downfeed for rough and fine grinding.
- Automatic spark out with automatic wheel head retract for parking
ACC SA1-Series
-
Next Generation standard surface grinder series equipped with a newly developed user friendly controller
- Best step up from the ever popular Okamoto ACC-DX Series
- Crossfeed setting by Teach-In
- Compact footprint design
- New control with LCD touch screen allows for easy monitoring of the machine functions and grind process
- Auto dress with compensation is standard
- Spindle inverter unit is standard
- Auto-retract function is standard
ACC 42SAiQ
-
New model series of mid-size surface grinding machines
- Graphical wheel shape software for simple radius an V-shape
- ISO G-Code wheel dressing and grinding
- Okamoto-iCAM, CAD/CAM wheel profiling software
- Uneven slot grinding in 5 different patterns
- Combined grinding of up to 40 different faces
- Wheel dressing options including rotary dressers
- Workholding option including 400 x 200 mm Electro permanent magnetic chuck
- Various coolant systems
ACC CA-Series
-
Precision surface grinding machine
- Electro-permanent magnetic chuck size matching machine size
- Automatic table dress option
- Automatic Hydraulic overhead dresser with compensation option
- Various coolant systems
ACC CAiQ-Series
-
Precision surface and profile grinding machine.
- Graphical wheel shape software for simple radius an V-shape
- ISO G-Code wheel dressing and grinding
- Okamoto-iCAM, CAD/CAM wheel profiling software
- Uneven slot grinding in 5 different patterns
- Combined grinding of up to 40 different faces
- Electro permanent magnetic chucks to match the machine size
- Wheel dressing options including rotary dressers
- Various coolant systems
ACC CHIQ-Series
-
Precision double column machine
The ACC-CHiQ series meets the very highest requirements in terms of precision to be found in the manufacture for parts in tool and mould construction, in hot runner technology and punching die construction. The cross slideways can be adjusted mechanically and can be realigned at any time as needed. In doing so, the CNC does not need to be compensated which in turn affords advantages in a higher surface quality and
smoothness.- Double column machine
- PC control with touchscreen
- Simple data input via symbols
- Stable construction for the very highest
- geometry requirements
- Mechanically adjustable cross slideways
PRG iQ-Series
-
CNC Precision Rotary Surface Grinding Machine with Okamoto iQ Touch Screen Control
- Simplified display screen enables easy grinding condition settings via touch input.
- Equipped with a portable manual pulse handle for improved accessibility and operability.
VRG DX-Series
-
Vertical Grinding Machine Series – Achieve enhanced productivity with grinding efficiency over three times greater than conventional methods.
- High-efficiency grinding machine series featuring vertical and horizontal spindles with rotary tables
- Column adjustment employs a three-point support structure, enabling easy adjustment.
- Control achieved through our proprietary FX controller
- Standard fully enclosed cover design for enhanced factory and workplace safety
- Ideal for processing not only metals but also brittle materials such as glass and ceramics Processing time compared to our conventional horizontal-axis rotary grinding machine.
Aero Lap YT300
-
Finishing system for polishing / lapping irregular profiles
For extremely fine lapping of irregular profiles, AERO LAP is also equipped for small tools and parts. The special suspension multicone enables an automated lapping process without changing the geometry of the components to be worked. Multicone is a special elastic carrier medium to which diamond powder has been added. The media is directed onto the workpiece via a nozzle from a special turbine.- Easy lapping of irregular profiles
- Improves tool life of all tools (drills, milling cutters, form punches, etc.)
- Suitable for PVD/CVD coating (pre/mirror-gloss lapping)
- Negligible production of dust and odour
UDG-NC
-
Double column surface and profile grinding machine with hydrostatic slideways
With a grinding length of 2m to 10m long and a cross travel of 1m to 3.5m the Okamoto UDG-NC Series is ideally suited for both toolroom and production use. The robust cast iron construction and hydrostatic slideways together with a moving cross rail ensure long term precision. The intuitive operation of the controls simplifies usage and increases productivity considerably.
- Double column machine
- Moving cross rail to allow work height 1.5m
- hydrostatic slideways
- Robust construction for the very highest geometry requirements
- Precision surface processing
- Conversation software
DCG-NC
-
Double Column Type Surface Grinders.
With a grinding length of 2m – 4m and a cross travel of 1.5m – 2m the Okamoto DCG-NC Series is ideally suited for both toolroom and production use. It features a high level of standard equipment to ensure easy handling, quick and precise part production. The robust cast iron construction and double-V table slideways together with gantry cross slide ensure long term precision. The intuitive operation of the controls simplifies usage and increases productivity considerably.- Double column machine
- Max. grinding height 1.5m, 1.6m, and 1.8m depending on model size
- Robust construction for the very highest geometry requirements
- Precision surface processing
- Conversation software
UPG-CHLi
-
Double Column Type CNC Surface Grinding Machine Series. Proposal for Fully Automated Machining and On-Machine Measurement of Large High-Precision Components.
Linear motor drives on both sides of the table, combined with a variable hydrostatic slide system on the sliding surfaces, enable high-speed grinding and crowning grinding. An ultra-precision portal-type surface grinder supporting in-machine measurement through precise positioning.
Feature・By adopting linear motor drive and variable hydrostatic slides on the left and right tables, the left and right table speeds can be freely controlled for 2-axis interpolation from stable low speeds up to 40 m/min.
・We offer a wide range of options including crowning, multi-processing, free contour machining, and measurement/correction machining.
・The ultra-precision variable hydrostatic slide system minimizes changes in the oil film on the guide surface. It flexibly controls oil flow, achieving oil film thickness variations less than 1/7th compared to conventional hydrostatic guide surfaces. Furthermore, hydrostatic oil consumption is reduced to less than 1/4th of conventional levels, significantly contributing to improved precision and energy savings through enhanced temperature management.
・By optimizing our equipment environment, we can handle ultra-precision machining and mirror-finish processing.
PSG CA3-Series
-
Precision surface grinding machine
With a grinding length of 600 – 1000 mm and a cross travel of 400 – 600mm the Okamoto PSG-CA3 is ideally suited for the toolroom. It features a high level of standard equipment to ensure easy handling, quick and precise small part production. The intuitive operation of the controls simplifies usage and increases productivity considerably.
- CNC surface & profile grinding machine
- e.g. 3 axes simultaneously
- Column feed for cross movement
- Dialogue input system
Form Grinding Machines
UPZ 210 LiII / LiII-2
-
Ultra Precision surface and profile grinding machine
Weighing in at 5700 kg, the design of this machine offers an excellent low-vibration base for ultra-precision grinding of surfaces and profiles. High-precision linear slideways (optionally with hydrostatic slideways) paired with linear motors in all axes offer ultra high speed and precision. The linear motor table drive acheives an oscillation rate of up to 250 double strokes per minute. Two independently working grinding heads enable
roughing and finishing operations to be carried out concurrently. In combination with a CCD camera option, this machine is capable of completely automatic cycle including re-grinding with compensation and final partt measurement without having to remove the part from the machine, thereby guarantee the very highest precision.- CNC Fast Reciprocation Profile
- Grinding Machine
- with linear motor drive
- carbide grinding with 520 oscillation
- strokes per minute
- Roughing and finish grinding, measuring, compensating independently one after the other
UPZ 52 Li
-
Ultra Precision surface and profile grinding machine
With a grinding length of 500 mm and a cross travel of 200 mm the Okamoto UPZ-52Li is equally suited to the toolroom, small or large batch production. It features a high level of standard equipment to ensure easy handling, quick and precise small part production. The robust cast iron construction and linear guideways in both table and crossfeed provide for fast and accurate grinding. The intuitive operation of the controls simplifies usage and increases productivity considerably.
- Linear motor table drive
- Workpiece measurement system
- CCD camera
- High-speed reciprocation (500/min)
- Temperature-stabilized grinding
- wheel spindle head
Cylindrical / Internal / Universal Grinding
IGM15NC III-2B
-
NC Precision Internal Grinding Machine
- The dual-axis grinding wheel spindle enables complex machining operations.
- The automatic machining data setting function automatically generates optimal grinding and dressing conditions. Simply input the grinding wheel grit size, wheel diameter, and wheel width, then enter the workpiece nominal diameter.
- Automatic calculation of base dressing and machining conditions is possible from grinding wheel information, workpiece dimensions, and overall length data.
- File management supports registration of 21 types of grinding wheel data and workpiece data. It offers operability unmatched by typical universal internal grinding machines.
- The screen displays no text; operations are completed via touch input while viewing the panel display. The touch panel also eliminates unnecessary switch controls.
- Fully enclosed cover, grinding wheel spindle AC motor, and workpiece spindle AC servo motor are standard features. Within the fully enclosed cover designed for environmental compliance, stable feed and depth of cut suppress grinding burn while achieving high machining accuracy.
IGM 15 NCIII / NCIII-2
-
Internal grinding machine with single or twin spindles.
Standard software with 10-step grinding program Software for plain bore, taper and contour grinding with
2-axis control. Entry of grinding data via touchscreen with easy to use software. Wheel and workhead spindles
are driven by AC servomotors. High precision is further optimized via thermally stabilized infeed ball screw.- Internal cylindrical grinding machine for bore lengths up to 150 mm
- FANUC touchscreen with easy to use software input
- Single spindle or Twin spindle model with high frequence motor-driven spindles
UGM 5V
-
Precision vertical universal cylindrical grinding machine with B axis.
With the introduction of this new universal series of vertical and internal grinding machines, Okamoto combines its extensive know-how in the field of internal and external grinding in an entirely new design.
- CNC universal vertical grinding machine
- Pivoting wheel head (B axis)
- Automatic Tool Changer for 4 wheels
- Roundness 0.9 μm
OGM 250 UDXB
-
Universal cylindrical grinding machine
A Universal cylindrical grinding machine having a diameter capacity of 200 mm and with 500 mm between centres, the OGM 250 UDXB is ideally suited for toolroom small batch production. it is delivered with a comprehensive level of standard equipment to suit toolroom production and allows quick and easy setup. The stable design of the spindle head together with double-V table slideways provides for a robust machine with long-term precision. The intuitive operation of the controls simplifies usage and increases productivity considerably.
- Proven PLC type Okamoto DX control
- With internal grinding unit in the standard equipment
- AC motor ball screw table drive mounted on a T-shaped cast iron machine bed
OGM EXIII-Series
-
NC Precision External cylindrical grinding machine
Equipped with a Fanuc touch screen control, the OGM-EXIII Series has been optimised for quick and easy setups for single diameter grinding in a toolroom environment. Additional options include software with 10-step grinding program and a Z axis offset touch probe. Entry of grinding data is quick and easy via the colour touchscreen.
- External only version with large diameter 450mm wheel
- FANUC touchscreen control featuring easy to use software
- Sizes from 500 mm to 1500 mm between centres
OGM UEXIII-Series
-
Universal Precision cylindrical grinding machine.
Standard software with 10-step grinding program. Software for profile grinding optionally available. Entry of grinding data via touchscreen. Wheel and work spindles driven by Fanuc AC servomotors. Shoulder locator and gap eliminator are included in the standard equipment.
- External / universal cylindrical grinding machine
- FANUC touchscreen control featuring easy to use software Sizes from 500 mm to 1500 mm between centers
OGM UNCIII-Series
-
Universal Cylindrical Grinder
Standard software with 10-step grinding program. Software for profile grinding optionally available. Entry of grinding data via touchscreen. Wheel and work spindles driven by Fanuc AC servomotors. Shoulder locator and gap eliminator are included in the standard equipment.
- External / universal cylindrical grinding machine
- FANUC touchscreen control featuring easy to use software Sizes from 500 mm to 1500 mm between centers
OGM EXIII-Series
-
NC Precision External cylindrical grinding machine
Equipped with a Fanuc touch screen control, the OGM-EXIII Series has been optimised for quick and easy setups for single diameter grinding in a toolroom environment. Additional options include software with 10-step grinding program and a Z axis offset touch probe. Entry of grinding data is quick and easy via the colour touchscreen.
- External only version with large diameter 450mm wheel
- FANUC touchscreen control featuring easy to use software
- Sizes from 500 mm to 1500 mm between centres
OGM UEXIII-Series
-
Universal Precision cylindrical grinding machine.
Standard software with 10-step grinding program. Software for profile grinding optionally available. Entry of grinding data via touchscreen. Wheel and work spindles driven by Fanuc AC servomotors. Shoulder locator and gap eliminator are included in the standard equipment.
- External / universal cylindrical grinding machine
- FANUC touchscreen control featuring easy to use software Sizes from 500 mm to 1500 mm between centers
Semiconductor Manufacturing Machines
SPP Series
-
Polishing Machine – Extra-Large Pitch Polisher.
- The pitch polisher is a device capable of processing surfaces requiring absolute flatness and mirror-like finishes, such as optical flats, high-precision mirrors, optical glass, and the base reference surfaces of precision measuring instruments for metal products.
The flatness achieved by this device is 30 nm per square meter. - Additionally, as a key feature of the device, the table utilizes specialized granite to minimize thermal variation, ensuring long-term precision maintenance.
Our dedicated surface plate correction conditioner and ultra-high-precision gantry facing unit consistently deliver the highest level of machining performance.
- The pitch polisher is a device capable of processing surfaces requiring absolute flatness and mirror-like finishes, such as optical flats, high-precision mirrors, optical glass, and the base reference surfaces of precision measuring instruments for metal products.
SPL Series
-
Lapping Machine – Wrapping Machines with a Diverse Lineup.
- In the processing of electronic materials, metallic materials, optical flats, ceramics, SiC, GaN, and other materials, achieving nano-level flatness and surface roughness requires a lapping machine capable of adapting to various conditions.
Our wrapping machines offer a lineup that allows selection of equipment size, workpiece holding method, table material, slurry, and functions to meet customer requirements.
All models are wrapping machines that excel in operability and are suitable for mass production.
Additionally, a high-precision facing device can be included as an option. Program settings enable fully automatic correction of the base plate shape and groove cutting.
- In the processing of electronic materials, metallic materials, optical flats, ceramics, SiC, GaN, and other materials, achieving nano-level flatness and surface roughness requires a lapping machine capable of adapting to various conditions.
PNX332B
-
An automatic final polisher for 300 mm wafers that maximizes edge-profile accuracy and removal-rate uniformity to the highest possible level.
- Best-selling 300 mm final polisher.
- Achieves atomic-level ultra-mirror and ultra-high brightness polishing.
- With three polish tables, this high-productivity machine simultaneously polishes six wafers from intermediate to finishing stages, and uses an indexing transport system to move four wafers at the same time.
SPP600S
-
Polishing Machine – quipped with a wide range of software for research and development.
- This manual-type CMP system is ideal for research and development applications. It supports various pressure control methods based on either the front or back surface. Its user-friendly interface allows you to monitor all processing conditions on a single screen.
- Primary time settings ensure consistently stable data collection. Data obtained from this unit can be linked with the fully automatic polisher PNX332B and used directly.
- Even when grinding with a removal rate of 10μm or more, wafer shape will not be compromised. It features a dedicated dresser spindle and is compatible with diamond dressers.
SVG401H
-
Grinding Machine – Space-saving and multi-functional machine.
- Manual grinder for research and development and grinding of difficult-to-cut materials. The SVG101 features a shuttle table and is designed to facilitate manual wafer loading and unloading.
- The SVG401 performs continuous machining of difficult-to-cut materials such as sapphire and SiC, as well as compound semiconductors, utilizing its high-rigidity structure and high-horsepower built-in motor.
GNX200B / GNX300B
-
The Okamoto GNX series is a high-precision double-side lapping and polishing platform designed for efficient, consistent processing of semiconductor and advanced material components.
The Okamoto GNX series is engineered for demanding double-side lapping and polishing applications, delivering high dimensional accuracy, stable throughput, and repeatable surface quality. Designed for semiconductor wafers and advanced materials, the GNX machines integrate rigid construction, precise spindle control, and optimized process stability to ensure uniform stock removal and superior flatness across a wide range of part sizes. Their automation-ready architecture and reliable performance make them suitable for both high-volume production and precision manufacturing environments.
Powering the World’s Critical Industries
-
Precision is not universal; it is specific. The demands of grinding a silicon wafer differ vastly from the demands of grinding a landing gear strut. Okamoto Europe provides specialized grinding solutions tailored to the unique material challenges, tolerance requirements, and production volumes of your specific sector.
Automotive: High-Volume Precision
-
The automotive landscape is evolving. With the rise of Electric Vehicles (EVs), the demand for quieter, higher-precision transmission gears and shafts has never been higher. Okamoto supports Tier 1 suppliers and OEMs with machines that deliver consistency over high-volume production runs.
The Challenge: Modern automotive components require tighter tolerances to reduce friction and noise. Manufacturers need machines that can maintain these tolerances 24/7 without thermal drift.
The Okamoto Solution: Our Internal and Cylindrical Grinding machines are engineered for the mass production of complex powertrain components. We offer automated loading solutions and in-process gauging to ensure zero-defect manufacturing.
Aerospace: Mastering Exotic Materials
-
In aerospace, failure is not an option. This sector demands the processing of “difficult-to-cut” materials that are heat-resistant and incredibly tough. Okamoto’s signature rigidity provides the stability needed to grind these superalloys without vibration or chatter.
The Challenge: Materials like Inconel, Titanium, and Nickel-based alloys are notoriously difficult to grind. They require high rigidity to prevent tool deflection and advanced cooling systems to prevent thermal damage to the workpiece.
The Okamoto Solution: Our Double Column Surface Grinders and specialized Profile Grinders utilize a heavy-duty cast iron construction (Meehanite) that dampens vibration. Combined with our rigid spindles and specific abrasive solutions, we achieve mirror finishes on the toughest aerospace alloys.
Semiconductor: The Nanometer Standard
-
Okamoto is a pioneer in the semiconductor equipment market. As electronic devices become smaller and more powerful, the need for ultra-thin, perfectly flat wafers increases. We provide the technology that powers the global electronics supply chain.
The Challenge: Wafer processing requires handling extremely brittle materials (Silicon, SiC, GaN) with total thickness variation (TTV) measured in nanometers.
The Okamoto Solution: We offer a complete line of “Back Grinding” and Polishing machines. Our systems utilize advanced air-bearing spindles and vacuum chuck technology to thin wafers safely and uniformly, supporting the shift towards next-generation Power Devices.
The Foundation of Industrial Reliability
-
The industrial components market supplies precision parts that are essential for machinery, equipment, and production systems across many industries, including automation, energy, transportation, and mechanical engineering. These components must meet high standards for accuracy, durability, and consistent quality.
Manufacturing industrial components requires advanced machining processes such as CNC milling, turning, heat treatment, and high-precision grinding to achieve tight tolerances and reliable surface finishes.
Precision Tooling for Modern Manufacturing
-
The mould & die industry is a key driver of modern manufacturing, providing highly precise tools for the production of plastic and metal components. It supports industries such as automotive, medical technology, electronics, packaging, and consumer goods, where accuracy, reliability, and repeatability are essential.
Advanced technologies like CAD/CAM, CNC machining, EDM, and high-precision grinding are used to manufacture moulds and dies with tight tolerances and superior surface quality.