セイコーインスツル List of Products and Services

Seiko Instruments' high-frequency spindles meet various customer needs, including precision grinding, high-speed machining, milling, and high-speed rotation testing, through the technology cultivated in watch manufacturing and the trust and track record in precision machining that has continued since the Seiko Instruments era.

The "SSPG series" is a high-frequency spindle that is easy to customize and can be modified for milling applications. By achieving ultra-high precision, high output, and high rigidity, it can handle everything from high-speed rough machining to precision finishing with just one spindle. This product was developed to meet the growing demand for ultra-precision machining across a wide range of fields, including machine tools, semiconductor manufacturing equipment, and electronic component processing, by pursuing a high level of accuracy and versatility. 【Features】 ■ High output: Up to 33kW (1.1 to 2.1 times compared to conventional machines) ■ Energy-saving: Reduced air consumption compared to conventional machines, lubrication oil consumption is 1/6 ■ High rigidity: Uses large-diameter bearings ■ High precision: Improved bearing grade ■ Versatility: Customization according to customer needs is possible *For more details, please refer to the PDF document or feel free to contact us.

The NEW "H Series" is a spindle that comes standard with SII's internal grinding machines. Backed by half a century of grinding processing achievements, this high-speed and high-precision spindle continues to be favored by our customers. Aiming for further evolution, we have released the fully redesigned "NEW H Series." This new series reduces air flow by improving airflow and reducing the number of pipes, and it is compatible with both lubrication oils VG10 and VG32. We offer a comprehensive lineup with speeds ranging from 50,000 to 150,000 min^-1. 【Features】 ■ Achieves reduced environmental impact Air usage: 50% reduction, oil usage: 75% reduction (compared to our conventional products) ■ Easy to install in compact machines and dedicated machines that save space ■ Comprehensive lineup with speeds from 50,000 to 150,000 min^-1 ■ Uses bearing grade P2 ■ dmn value of 2.2 to 2.5 million ■ Rich track record due to installation in SII's internal grinding machines *For more details, please refer to the PDF document or feel free to contact us.

The "spindle motor" adopts a motor that integrates the power source and the rotating part. This product, with its simple structure, is compact while possessing capabilities equivalent to other rotating drive devices. Furthermore, it does not require space in directions other than the axial direction, allowing for the construction of many rotating shafts in parallel. As for the lineup, various options are available based on differences in rotation speed, output, size, and lubrication method, enabling the selection of products suited to specific applications. 【Features】 ■ Adopts a motor that integrates the power source and the rotating part ■ Simple structure of the device ■ Compact while possessing capabilities equivalent to other rotating drive devices ■ Does not require space in directions other than the axial direction ■ Capable of constructing many rotating shafts in parallel *For more details, please refer to the PDF materials or feel free to contact us.

The "spindle motor" is compact among rotating drive devices, leading to increased demand across various industries within manufacturing. Specifically, it is highlighted in the ultra-precision machining areas such as machine tools, semiconductors, and electronic component processing machines. Additionally, in recent years, there has been a growing demand for small-batch production of various types, further increasing the demand for spindle motors, which have a wide application range for a single product. 【Performance】 ■ Compact among rotating drive devices ■ High control precision ■ Applicable to various equipment ■ Wide application range for a single product *For more details, please refer to the PDF materials or feel free to contact us.

At Seiko Instruments, we are developing high-precision high-frequency spindle motors to meet a wide range of demands, primarily in the field of precision machining. Based on the technology cultivated through years of precision machining for wristwatches, we have built a track record by incorporating these motors into internal grinding machines developed in-house. Additionally, by increasing the diameter of the rotating shaft, we ensure high rigidity while achieving high rotational accuracy at high speeds through the optimization of bearing design and lubrication circuits. 【Strengths】 ■ Realization of high rigidity and high precision rotation through optimized structural design ■ High reliability through a unique inspection and assembly system ■ High versatility through a rich variety of interfaces ■ Cost and performance optimization through simulation technology ■ Reduction of environmental impact through optimal design of lubrication circuits *For more details, please refer to the PDF materials or feel free to contact us.

Developed to meet the increasing demand for ultra-precision machining across a wide range of fields such as machine tools, semiconductor manufacturing equipment, and electronic component processing machines, this product pursues the highest levels of accuracy and versatility. With the realization of ultra-high precision, high output, and high rigidity, it is capable of handling everything from high-speed rough machining to precision finishing with a single spindle. 【Features】 - High output / high torque: Significant improvement over our conventional machines in the same rotational speed range - Energy-saving: Reduced air consumption compared to our conventional machines - High rigidity: Adoption of large diameter bearings - High precision: Use of upgraded bearing grades, low vibration - High-speed rotation: dmn value of 2.4 to 2.7 million - Tool mounting: Screw + in-low, HSK - Compatibility: Shape compatibility with overseas manufactured spindles *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce a case study of "magnet" processing that we conducted. Our goal was to improve processing accuracy and achieve in-house production of workpieces that our customers had been outsourcing. Compared to before implementation, processing time was reduced by 65%, achieving a surface roughness of Ra 1.5μm or less and roundness of 1.5μm or less. 【Case Overview】 ■ Processing dimensions: φ4mm × 26.4mm ■ Material: Neodymium magnet ■ Features: Special material, long hole (L/D = 6.6) ■ Model: STG-3N ■ Spindle: M8H-T (Max 80,000rpm) *For more details, please refer to the related links or feel free to contact us.

We would like to introduce a case study of "alumina" processing conducted by our company. In the customer's equipment, the roundness was approximately 4μm with a processing time of 2400 seconds, so we proposed a processing method to improve the roundness in about half the processing time. Compared to before implementation, we achieved a 50% reduction in processing time, a surface roughness of Ra 0.5μm or less, and a roundness of 1.0μm or less. 【Case Overview】 ■Processing dimensions: φ3.1mm×22.5mm ■Material: Alumina ■Features: Special material, long hole (L/D=6.4) ■Model: STG-3N ■Spindle: M15H-T (Max 150,000rpm) *For more details, please refer to the related links or feel free to contact us.

We would like to introduce a case study of "dice" processing that we conducted. In the customer's equipment, increasing the spindle rotation speed led to unstable precision, creating distrust in the spindle. Therefore, we proposed that our spindle maintains stable precision even at maximum rotation speed. Compared to before implementation, we achieved a 50% reduction in processing time and roundness of less than 1.0μm. 【Case Overview】 ■Processing dimensions: φ7.8mm×7mm ■Material: Carbide ■Features: Special outer diameter ■Model: STG-6N ■Spindle: SSPG-045 T100 (Max 45,000rpm) *For more details, please refer to the related links or feel free to contact us.

In machining equipment such as cutting machines and grinding machines, a rotating drive device that rotates materials and tools is essential. One type of rotating drive device is the spindle motor. Spindle motors are compact and highly precise among rotating drive devices, so it is believed that demand will increase more than ever in industries that require high machining precision, such as high-precision machining. This article explains spindle motors, which are rotating drive devices. Please take a moment to read it. Additionally, Seiko Instruments is developing high-precision high-frequency spindle motors to meet a wide range of needs, primarily in the precision machining field. If you are looking for a high-speed spindle motor that is both highly precise and versatile, or if you have inquiries about existing equipment's spindle motors, please contact Seiko Instruments. *For more details, please refer to the PDF materials or feel free to contact us.