About Shigiya

Used Shigiya CNC Grinding Machines for Sale

Resell CNC is your Simple. Reliable. and Trusted.® source for used Shigiya CNC grinding machines — including CNC cylindrical grinders, CNC universal grinders, CNC crank-pin grinders, masterless cam grinders, centerless cylindrical grinders, face grinders, and custom-engineered grinding systems. We carry Shigiya models across the full product range, from compact GPC-series production grinders through GPL, GPH, and GPS cylindrical grinders to large-format GP-series machines, GSU universal grinders, and legacy GUA hydraulic universal models.

Shigiya Machinery Works Ltd. traces its origins to 1911, when Nakajiro Shigitani founded Oriental Loom Works (later Shigiya Loom Works) in Hiroshima, Japan. In 1952 the company began developing machine tools with the creation of universal and tool grinders, and in 1960 it officially became Shigiya Machinery Works, concentrating entirely on cylindrical grinding technology. In 1974, Shigiya expanded into eyeglass lens grinding machines. Today, with over 100 years of grinding expertise, the company offers more than 350 models in over 900 configurations, pursuing roundness accuracy of 0.1 micrometers. Shigiya machines are 100% manufactured at the company's Fukuyama, Hiroshima facility. The US sales and service subsidiary, Shigiya (USA) Ltd., was established in 1991 and operates from a 12,000-square-foot facility at 651 E. State Parkway, Schaumburg, Illinois. Shigiya grinders have served the US market since the 1970s, with several thousand machines installed at customers including Toyota, Honda, Suzuki, Mazda, Denso, Fanuc, Kia, and Hyundai.

Looking to sell your Shigiya grinder? Resell CNC buys used Shigiya grinding machines nationwide: any model, any generation, any condition. Free appraisal within 24 hours, competitive offers, and we handle all rigging and transportation. Call (844) 478-8181 or email sales@resellcnc.com.

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Shigiya CNC Cylindrical & Production Grinders

Shigiya's cylindrical grinder lineup covers the full range of OD grinding applications. The GPL series provides standard CNC cylindrical grinding, while the GPH series adds manual handwheels for a general-purpose feel alongside CNC precision. The GPC series delivers compact, high-accuracy grinding for small parts with seamless automation integration. The GPS series offers a value-oriented entry point with standardized options. For angular grinding, the GAE, GAS, GAC, and GAP series provide angular wheelhead configurations for simultaneous OD and shoulder grinding. The GP-45D through GP-100D cover large-workpiece applications. Legacy GUA-series hydraulic universal grinders remain among the most commonly traded Shigiya machines on the used market.

Shigiya Universal & Specialized Grinders

The GU-series universal grinders and the GSU-series super universal grinders feature NC swivel wheelheads that support up to nine different wheelhead installation patterns. GSU models with C-X axis control can perform eccentric OD and polygonal grinding. Specialized machines include the GCMH masterless cam grinder, GPEL and GPES eccentric/polygon grinders, SG face grinders, and GPV/GAV vertical CNC cylindrical grinders. Shigiya also manufactures centerless cylindrical grinders and custom-engineered grinding systems for dedicated production applications.


Founded	1911 (as Oriental Loom Works); machine tools from 1952; Shigiya Machinery Works from 1960
Headquarters	Fukuyama, Hiroshima, Japan
US Operations	Shigiya (USA) Ltd., 651 E. State Parkway, Schaumburg, IL 60173
Best Known For	CNC cylindrical grinders, universal grinders, cam grinders, centerless grinders
Popular Models	GPL-30B, GPH-30B, GPC-30B, GPS-30B, GU-30B, GSU-30B, GUA-30, GP-65D
CNC Controls	Fanuc (primary platform across all CNC models)
Industries Served	Automotive, aerospace, bearings, hydraulics, electronics, medical, general precision machining

What to Look for When Buying a Used Shigiya Grinder

Shigiya builds all machines at its Hiroshima factory, targeting 0.1-micrometer roundness across more than 350 models. Used Shigiya grinders retain strong value due to Japanese build quality and the brand's deep automotive supply chain presence. Here is what to inspect.

Check the grinding spindle and wheelhead bearings. Measure spindle runout and listen for bearing noise across the full speed range. On models with hydrostatic box ways (GPH-S variants), verify oil pressure and flow. Test the spindle motor for smooth acceleration under load. Inspect the grinding wheel flange and arbor for trueness.

Verify table travel, workhead, and tailstock condition. Check table traverse smoothness across the full stroke. On hydraulic models (legacy GUA series), verify hydraulic traverse, dwell adjustment, and auto infeed function. On CNC models, test ballscrew backlash on all axes. Inspect workhead spindle runout in both live and dead center modes. Verify tailstock alignment. On universal models, test table and wheelhead swivel mechanisms.

Evaluate the CNC control and automation features. Shigiya machines use Fanuc CNC controls across the product line. Verify the control powers up cleanly and all axes home correctly. On machines equipped with in-process gauging, wheel balancing, or contact detection, verify each accessory functions within specification.

Shigiya CNC Cylindrical Grinders

GPL, GPH & GPS Series

The GPL series (GPL-20, GPL-30B, GPL-40B) is Shigiya's standard CNC cylindrical grinder for production OD grinding. The GPH series (GPH-20, GPH-30B, GPH-40B) adds manual handwheels to the CNC platform for difficult one-piece processing. The GPH-20S variant features hydrostatic box ways and a low-vibration spindle motor for supreme accuracy. The GPS series (GPS-20, GPS-30B, GPS-40B) offers value-oriented CNC cylindrical grinding with standardized options.

GPC & GMP Series

The GPC series (GPC-20, GPC-30B, GPC-40B) provides compact CNC cylindrical grinding for small precision parts with seamless automation integration. The GMP-30 multi-purpose grinder offers versatility for mixed workpiece sizes and grinding operations.

Large-Format & Angular Grinders

The GP series (GP-45D, GP-55D, GP-65D, GP-85D, GP-100D) handles large workpieces requiring robust rigidity and production throughput. Angular grinder models include the GAE (angular), GAS (angular with swivel), GAC (angular compact), and GAP (angular production) series, all available in 30B and 40B swing sizes. Angular configurations enable simultaneous OD and shoulder grinding in a single setup.

Shigiya Universal Grinders

GU & GSU Series

The GU series (GU-20, GU-30B, GU-40B) provides CNC universal cylindrical grinding with swivel table and wheelhead for OD, ID, taper, and face grinding in one machine. The GSU series (GSU-30B, GSU-40B) is Shigiya's super universal grinder with an NC swivel wheelhead supporting up to nine installation patterns. With optional C-X axis control, GSU models can perform eccentric OD and polygonal grinding.

Legacy GUA Series

The GUA series (GUA-20-25, GUA-27-100, GUA-30-60, GUA-30-100) is Shigiya's legacy hydraulic universal cylindrical grinder. GUA models feature hydraulic table traverse, automatic infeed, plunge grinding, and full automatic cycle capability with sparkout timers. These machines are among the most commonly traded Shigiya models on the used market, valued for their robust construction, reliability, and straightforward operation without CNC complexity.

Shigiya Specialized Grinders

The GCMH-30 is a CNC masterless cam grinder for high-precision cam profile grinding. The GPEL-30B and GPES-30D handle eccentric OD, non-concentric profiles, and polygonal shapes. The SG-38B face grinder addresses precision face grinding. The GPV-10 and GAV-10 vertical CNC cylindrical grinders represent Shigiya's next-generation vertical platform. Shigiya also manufactures centerless grinders and custom-engineered systems for dedicated production.

How to Sell Your Used Shigiya Grinder

Shigiya grinders hold strong resale value thanks to the brand's century-plus heritage, Japanese precision, and deep installed base in automotive and precision machining. GPL, GPH, GUA, and GSU models are in consistent demand.

Resell CNC buys used Shigiya grinders: every model, every generation, nationwide.

Contact us — call (844) 478-8181 or email sales@resellcnc.com.
Free appraisal within 24 hours, no obligation.
Accept the offer — we handle rigging, transport, and logistics.

Frequently Asked Questions About Used Shigiya Grinders

Are used Shigiya grinders reliable?

Yes. Shigiya has manufactured grinding machines since 1952, and all machines are built entirely at the company's Hiroshima factory. Shigiya grinders are trusted by major automotive OEMs including Toyota, Honda, Mazda, and Denso. The company targets roundness of 0.1 micrometers, and robust cast-iron construction provides decades of service life with proper maintenance.

What CNC control does Shigiya use?

Shigiya machines use Fanuc CNC controls across the entire product line. CNC models feature Shigiya's interactive automatic programming system for accelerated cycle setup. Legacy GUA-series hydraulic models use manual/hydraulic controls without CNC. When purchasing a used CNC Shigiya, verify the Fanuc control generation (Oi-TD is common on recent models) to ensure parts and service availability.

What should I inspect before buying a used Shigiya?

Focus on grinding spindle runout and bearing condition, table traverse smoothness, workhead and tailstock alignment, and ballscrew backlash on CNC models. On hydraulic GUA models, verify the hydraulic system (table traverse, auto infeed, plunge function). Test any equipped accessories such as in-process gauging, wheel balancing, and contact detection systems.

What Shigiya models hold their value best?

GPL-30B and GPH-30B CNC cylindrical grinders, GSU-30B/40B universal grinders, and GPC-series compact grinders maintain strong resale values due to their versatility and production capability. Legacy GUA hydraulic universals remain in demand for shops that prefer manual/hydraulic operation. Call (844) 478-8181 for current valuations.

How do I sell my used Shigiya grinder?

Contact Resell CNC at (844) 478-8181 or sales@resellcnc.com. We buy every Shigiya model, from legacy GUA hydraulic universals through current GPL, GPH, GPS, GPC, GU, and GSU CNC grinders. Any condition, nationwide. Free appraisal within 24 hours.