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Next-generation chucks are twice as accurate

07 February 2022 | 1st Machine Tool Accessories Ltd

Next-generation chucks are twice as accurate

Designed to reduce set-up times on lathes, the new BR-series of 3-jaw chucks from Japanese firm Kitagawa are capable of a gripping accuracy of 0.01 mm TIR (total indicator reading) or less when using optional T-Nuts Plus jaws.


Repeatability of jaw exchange is within the same tolerance, even on the largest chuck. They are manufactured in 6-, 8-, 10- and 12-inch versions and are available in the UK and Ireland through sole agent 1st Machine Tool Accessories.

BR chucks are now Kitagawa’s standard offering and are interchangeable with its B-series and the large through-hole BB-series, which are both superseded. Their TIR could only be guaranteed within 0.02 mm.

Due to a new base jaw design and lower jaw lift, gripping forces at the maximum rotational speed of the chucks have been increased by 10 to 15 per cent to enable better metal removal rates. High spindle speeds have been maintained throughout the range to enhance the surface finish of turned components.

On twin-spindle chuckers, which are becoming ever more prevalent in turning shops, the better rotational accuracy of the workpiece allows more precise synchronous transfer from the main to the counter spindle for second-operation machining. Gripping force is up to 153 kN for the 12-inch chuck while maximum rotational speed, attainable on the 6-inch model, is 6,000 rpm.

Every chuck includes a QR code on the side to allow data on the product to be downloaded.

Other Press Releases from 1st Machine Tool Accessories Ltd

14/4/2022 - Productivity and efficiency will be the watchwords after Covid-19 As industry in the UK and Ireland emerges from the pandemic lockdown, improvements in production efficiency will be essential to maintain competitiveness in a global marketplace.
22/3/2022 - Rotary Table Range Extended In 2019 the Japanese manufacturer Kitagawa introduced the first in a new range of compact, general purpose rotary tables, the MK-series, for adding a rigid fourth CNC axis to a 3-axis vertical machining centre. One year later the MK200 has been joined by a second model, the MK250, with significantly uprated performance. Availability in Britain and Ireland is through sole sales agent 1st Machine Tool Accessories, Salisbury.
05/1/2022 - Set-up times cut, then reduced again US-manufactured CHICK System 5 workholding equipment, supplied in the UK through sole agent 1st Machine Tool Accessories, Salisbury, is helping to increase productivity and efficiency in the machine shop of Axminster Tools & Machinery, located in Axminster, Devon.
10/12/2021 - Specialist plastics machinist doubles turnover in four years Nothing but rotational plastic components are machined in batches from 30 to 20,000 at the Hertfordshire factory of subcontractor Plastic Turned Parts (PTP), which in four years to the end of 2019 doubled turnover and invested more than £750,000 in six new CNC turning centres.
23/11/2017 - The V-Tech Zero Point System Do you want secure and precise clamping without sacrificing productivity? Introducing the V-Tech Zero Point System, which could reduce your set-up times by more than 90%.