Dobson + Beaumont

In 1917, Thomas Dobson set up his metalworking business in Morton Street, Blackburn. Quickly joined by his two sons, Frank and Stanley, the business went from strength to strength. After making caterpillar tracks and shell casings during the second world war, the business developed into thread rolling specialists during the latter half of the 20th century. In 1965, Philip Dobson joined and would lead his grandfather's business for 50 years including its merger to become Dobson and Beaumont in 1978. Continuity was secured with a Management Buy Out in 2021, and the principles of top quality, consistency and “it has to be right” will be maintained.

Building on the years of experience within the business, we offer same day quotes, industry leading lead times when you need them, and aim to foster strong, long term relationships with our customers who trust us with their reputation.

What We Do

Whether you require a thread rolled component, or a precision engineered part, we can help.

  • Roll only of your machined parts
  • Machining and rolling of free issue materials
  • Complete supply of machined and rolled parts
  • Centreless grinding
  • Ultrasonic testing and MPI inspection
  • Working with sub-contractors on heat treatments and final coatings
  • One offs as well as repeat business
Thread Rolling
  • With 6 machines we can roll from 4mm Ø to 120mm Ø
  • Up to 4000mm in length
  • Over 400 tools including 25 annular tools
  • UN / UNC / UNF / UNEF / UNJ / BSP / BSF / Whitworth / DIN 240 / Metric / Trapezoidal / Acme / SMA
  • Left hand threads
  • Non standard threads
Precision Engineering
  • Multiple CNC lathes with up to 4 axis facility
  • Hardinge, Puma and Nakamura
  • 2500mm length capability using steadies and transferable tail stock
  • Twin spindle Nakamura AS200 with bar feeder, parts catcher and 30 station turret
  • Milling facilities
  • ISO 9001 (2015) certified
  • NDT inspection by our PCN level 2 qualified personnel
  • Full material traceability issued as standard
  • In house MPI inspection, for parts up to 1200mm long
  • In house ultrasonic detection, hardness testing, parts etching
  • Lloyds testing by arrangement
Centreless Grinding
  • 3 machines for 3.175 mm OD to 139.7 mm OD
  • Tolerances of 1 tenth of an inch – 0.0001” or 0.00254 mm
  • Ability to through and plunge grind
  • Can grind headed components
  • With over 75 T of material in stock and access to numerous steel stock holders we can supply complete, or process your free issue material
  • Carbon and Alloy Steels - 080M40 (EN8), 605M36 (EN16), 709M40 (EN19), 817M40 (EN24), 826M40 (EN26)
  • Stainless steels 303, 304, 316, 17/4 Ph
  • Exotic Alloys including Inconel, Titanium, Hastelloy
  • Heat resistant grades – Durehete 950 (40CrMoV4.6), Durehete 1055 (20CrMoVTiB4.10)
  • S97 / S98 / S99 aerospace grades
Get in Touch