Corporate Information

Message from the President

We would like to express our appreciation for your continuous support.

P·G·W Precision Granite W Co. Ltd. (P·G·W) was established in 1997 as a manufacturer specializing in stone processing, such as stone surface plates and jigs using stone (Granite). We manufacture equipment bases, surface plates, jigs, etc., mainly in the FPD industry, which has extremely high stone polishing technology and requires large and high-precision granite, and have been praised for their quality and service. We also design and develop high-precision unit devices that combine a granite base with stages, linear motors, guides, encoders, etc., to meet customer specifications.

Since its foundation, we have constantly strived to raise customer satisfaction and become a company loved by them. We are aiming to become a partner trusted by our customers through quality, price, delivery, service, speedy correspondence, etc., so that we can carry out consistent operations from procurement of high-quality stones to processing, design, manufacturing, and maintenance at our customers' sites.

In 2021, we became a member of PI Japan Co., Ltd., which is a market leader in ultra-precision positioning products using piezo-electrics, and we believe that this will become an important base responsible for the design, development, and manufacturing of equipment for customers requested by subsidiaries of PI (Physik Instrumente) in the Asian region as well as in Japan. High accuracy positioning plays an important role in increasing the performance and added value of machines and equipment. By combining the knowledge of both companies, we will be able to offer more solutions than ever before.

We will continue to aim to become a company that our customers trust even more with pride and confidence based on our manufacturing technology and trust that we have built up over many years.
We look forward to your continuous support and encouragement.

Characteristics of Our Company

The porphyry rock (commonly known as black granite) is made of carefully selected natural stones from India and South Africa, and we choose the stone type according to your application.
We always have 5000 x 3000 class stones in stock and provide short delivery times through integrated production from cutting to product completion.
Flat, parallel and right angle accuracy guarantee values meet customer needs.
We perform modification, alteration, and maintenance of stone products.
In addition, we offer a comprehensive range of services, from development to design, manufacture and installation of precision stages, precision measuring equipment and manufacturing facilities. We provide custom solutions that best meet your needs.

Corporate Profile

Company Name: P·G·W Precision Granite W Co. Ltd.
Head Office: 1053-1 Miyashiro, Tarui-cho, Fuwa-gun, Gifu 503-2124
URL: https://www.pgw.co.jp/
E-mail
Yoro Plant: 267-1 Murohara Ogurisu, Yoro-cho, Yoro-gun, Gifu 503-1301
Tokyo Office: 17F, Solid Square West Building, 580 Horikawa-cho, Saiwai-ku, Kawasaki, Kanagawa 212-0013
TEL +81 44-742-6200　FAX +81 44-742-6630
Establishment: December 18, 1997
Representative: Raymond Quek, Representative Director
Business Description: Development and design of precision stone products and system equipment, manufacture and sales of precision stone products such as stone surface plates, stone jigs, stone machine bases, stone precision sliders, and transportation, precision adsorption plates, curling repairs, import and sales of precision stone-related products, import and sales of granite.
Capital Stock: 49.5 million yen
Number of Employees: 20 persons
The Area of the Plant: Site 2215㎡ / Plant 1456㎡ / Office（combined dining area）262㎡
Plant Facility: For more information
Tokyo Office Facilities: SOLIDWORKS Professional 5 units
SOLIDWORKS Simulation Premium 1 unit

History

December 1997: P·G·W Precision Granite W Ltd., established with capital of 5.5 million yen
June 1998: Decision made to build a plant in Ampachi-cho, Gifu Prefecture with capital increased to 14.5 million yen / Construction of a thermo-hygrothermal room (8000x4000)
July 1998: Change to P·G·W Precision Granite W Co. Ltd.
February 1999: Capital increased to 16.5 million yen
September 1999: Expansion of CNC precision surface grinder
January 2000: Construction of precision assembly room
February 2000: Purchase of laser length measuring instrument
December 2000: Acquisition of a plant in Tarui-cho(Site area 2215 ㎡, Plant area 1016 ㎡) / Capital increase to 33 million yen
March 2001: New Gate Machinery Center / 2 Constant Temperature and Humidity Rooms (18000 x 5400, 10000 x 5400)
April 2001: Capital increase to 49.5 million yen
May 2001: Equipment transferred to Tarui Plant
April 2004: With the expansion of the Tarui Plant(440 ㎡), a constant temperature and humidity room / Gate Machinery Center were built
September 2006: New movable constant temperature and humidity room (10,000 x 7000)
May 2008: New Constant Temperature and Humidity Room
September 2008: New Constant Temperature and Humidity Room
January 2015: Tokyo office opened / New SOLIDWORKS Professional 2015, 3 / New SOLIDWORKS Simulation Premium 2015, 1
August 2017: Tokyo Office Relocated / Tsuzuki ku, Yokohama⇒Naka ku, Yokohama
January 2019: Opened Yoro Plant
January 2019: Introduction of ultraprecision polishing machine
February 2021: Transfer of shares to PI Japan Co., Ltd., a subsidiary of Physik Instrumente (PI) GmbH, a German capital company, and become a part of the Group.
June 2022: Tokyo Office Relocation / Naka-ku, Yokohama ⇒ Saiwai-ku, Kawasaki

Selected Production Area and Stone Materials

Production Areas in South Africa

Production Areas in India

Stone Stock in Japan

P·G·W carefully selects the types of stones, directly importing Granite from production areas such as South Africa and India, and always keeping stock in Japan.

Granite used in stone surface plates has different features depending on the production area, so we propose the most suitable stone type according to the application.

Integrated production from cutting to product completion at our two plants in Gifu allows us to meet short delivery times.

Access

Head Office・Plant

1053-1 Miyashiro, Tarui-cho, Fuwa-gun, Gifu 503-2124
Tel. +81 584-24-2021　FAX. +81 584-24-2022
E-mail :

Yoro Plant

267-1 Murohara Ogurisu, Yoro-cho, Yoro-gun, Gifu 503-1301

Tokyo Office

17F, Solid Square West Building, 580 Horikawa-cho, Saiwai-ku, Kawasaki, Kanagawa 212-0013
TEL +81 44-742-6200　FAX +81 44-742-6630

Image Source: OSAKA Building Landscape

Plant Facilities

Gated Machinery Center / Maximum Dimensions 5500x3200x500

Constant Temprature and Humidity Room

List of Plant Facilities

Gated Machinery CenterMaximum Dimensions = 5500 x 3200 x 500 Compatible4 Units
CNC Precision Surface Grinder1 unit
Sliding Polishing1 unit
Ultra-Precision Polisher (Flatness 3 μm/m, straightness 1 μm/m)Maximum Dimensions = up to 4500 x 1500 x 6001 set
Constant temperature and humidity room21700×5450 23 °C ± 1 °C 50%±2%1 set
Constant temperature and humidity room8000×6000 23 °C ± 1 °C 50%±2%1 set
Laser Length Measuring Instrument1 set
Plane, Straight Accuracy Measuring Instrument (MDC Measuring System)Sensitivity: 1 μm/1 m1 set
Rectangular Measuring Instruments4 sets
Photoelectric Autocollimator2 sets

Processing ・ Wrapping ・ Inspection

(1) Polishing Process

(2) Special Polishing & Processing

(3) Hand Wrap

(4) Flatness & Straightness Measurement

(5) Products