Centre Hole Grinder

Centre Hole Grinder

  • Centre Hole Grinder
  • Centre Hole Grinder
  • Centre Hole Grinder
Grunnleggende data

Product Overview

The Centre Hole Grinder from Zhejiang Quanshun Machine Tool Co., Ltd. is a precision machine dedicated to grinding the centre holes used as locating references in shaft manufacturing. Since the accuracy of every downstream cylindrical grinding, turning, and inspection operation depends on the quality of the centre hole, this machine is built to deliver a roundness of 0.0015mm and a surface roughness of Ra0.8 — ensuring shafts run true and locate consistently through the entire production process. It handles parts up to 1000mm in length (400mm when using the air blower configuration) and Φ320mm in rotary diameter, with a maximum workpiece weight of 150kg, making it a practical pre-processing solution for shaft manufacturers who need reliable, repeatable centre reference points before final grinding.

Key Advantages for Industrial Buyers

High-Precision Centre Reference — Achieves a centre hole roundness of 0.0015mm, giving shafts a true, consistent locating point that directly improves the accuracy of every subsequent between-centres grinding or turning operation.

Fine Surface Finish — Delivers a centre hole roughness of Ra0.8, reducing wear on centres and improving contact stability during repeated handling and re-fixturing of the workpiece.

Optional Air Blower Configuration — An air blower option is available for parts up to 400mm in length, helping clear grinding debris from the centre hole for a cleaner finish and more consistent results on shorter shafts.

Wide Part Capacity — Handles shafts up to 1000mm in length, Φ320mm in rotary diameter, and 150kg in weight, covering the range of shaft sizes typically processed in cylindrical grinding production lines.

Improves Downstream Grinding Yield — A precisely ground centre hole reduces run-out and mis-location in subsequent cylindrical grinding, lowering scrap and rework rates across the shaft production process.

Applications

This machine is used as a precision pre-processing step ahead of cylindrical grinding and turning, commonly for:

Shaft and spindle centre hole preparation Automotive shaft component processing
Precision tool and cutting tool blanks Pre-grinding reference correction for between-centres grinding

Why Choose Zhejiang Quanshun Machine Tool

Zhejiang Quanshun Machine Tool Co., Ltd. designs the Centre Hole Grinder to complement its full range of cylindrical grinding machines, giving shaft manufacturers a complete process chain from centre reference preparation through final precision grinding. With 0.0015mm roundness and Ra0.8 surface finish, the machine helps reduce downstream scrap and improve overall part accuracy. We offer configuration options including the air blower attachment and support technical consultation, installation guidance, and after-sales service.

Frequently Asked Questions

Why is centre hole grinding important before cylindrical grinding?

The centre hole serves as the locating reference for between-centres grinding, turning, and inspection. If it is not round and smooth, the shaft will run out of true during later operations, directly affecting final part accuracy.

What size parts can this machine process?

The machine handles parts up to 1000mm in length (400mm when using the air blower configuration), Φ320mm in rotary diameter, and up to 150kg in weight.

What precision does this machine achieve?

The centre hole roundness reaches 0.0015mm, with a surface roughness of Ra0.8, meeting the precision reference standards required for high-accuracy shaft production.

What is the air blower option used for?

The air blower configuration helps clear grinding debris from the centre hole during processing, improving finish consistency on parts up to 400mm in length.

Can specifications be customized?

Yes. Zhejiang Quanshun Machine Tool offers customization of maximum part length, rotary diameter, and machine configuration based on specific shaft manufacturing requirements.

Tekniske data:
  • M1520
  • M1532
  • MK1532

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Zhejiang Quanshun Machine Tool Co., Ltd.

Zhejiang Quanshun Machine Tool Co., Ltd.

Zhejiang Quanshun Machine Tool Co., Ltd. er en profesjonell produsent av presisjonsslipemaskiner. Det ligger i Zhuji, Zhejiang-provinsen, det viktigste økonomiske utviklingsområdet i Yangtze River Delta. Det er 65 km fra Hangzhou, 180 km fra Shanghai, 60 km fra Hangzhou internasjonale lufthavn og 60 km fra motorveier som Hangjinqu, Zhuyong og Shaozhu, med praktisk transport og unik geografisk plassering.

Selskapet dekker et område på 35 000 kvadratmeter og et byggeområde på 32 000 kvadratmeter. Zhejiang Quanshun Machine Tool Co., Ltd. har en produksjonsbase for maskinverktøy og en produksjonsbase for hydrauliske deler. Hovedproduktene er ulike spesifikasjoner av vanlige (CNC) sylindriske slipemaskiner, CNC endeflate sylindriske slipemaskiner, automatisk lasting og lossing CNC (endeflate) sylindriske slipemaskiner, komposittslipemaskiner, høypresisjon vanlige (CNC) sylindriske slipemaskiner, og vi kan utvikle ulike typer slipemaskiner, i henhold til ulike typer slipemaskiner, og vi kan utvikle ulike typer slipemaskiner. brukere og levere relevant teknologi, programvare, opplæringstjenester og automatiseringsløsninger. Vårt firma har komplette produktforsknings- og utviklingsevner, bestod IS09001-2015 kvalitetssystem og CE-sikkerhetssertifiseringer, og ble kåret til "National High-tech Enterprise". I 2021 ble det vurdert som en spesialisert og ny liten og mellomstor bedrift i Zhejiang-provinsen. Vi har også egeneksportkvalifikasjoner. Vårt firma holder seg til konseptet "kvalitet først, omdømme først, service først", slik at produktene våre har et godt omdømme i markedet. For tiden er produktene våre eksportert til mer enn 20 land, som USA, Tyskland, Japan og Sørøst-Asia.

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