On Site Turning and Milling


Furmanite range of journal turning machine capacities:

  • End shaft mounted, 75mm to 1220mm (3” to 48”)
  • Mid-shaft mounted, up to 560mm (22”)

Static machining attachments:

  • Limitations on what can be machined are not size but access and available mounting places. Each case should be individually assessed

Standard finishes for variable feed turning machines:

  • 1.6mm Ra to 6.3mm Ra (63 CLA to 250 CLA)
  • Static machining attachments with single point tools, 1.6mm Ra to 6.3mm Ra (63 CLA to 250 CLA)
  • Using the Furmanite in house designed orbital grinding and polishing attachments 0.8mm Ra to 1.6mm Ra (32 CLA to 63 CLA)

Tolerances achievable with turning operations:

  • For parallel shaft diameters using single point tools, finished tolerances of size + 0.012mm (0.0005”)
  • Ground or polished shafts finished tolerances of size + 0.005mm (0.0002”) is dependent on the outside diameter and material of component

Power requirements and utilities required on site:

Journal turning machines

  • Air powered machines. Air at 2.7m3/min @ 6 bar, (100 CFM @ 90 PSI)
  • Hydraulic powered machines, 415 – 440V 63 Amp 3 phase socket outlet


Furmanite range of milling machines and capacities

Furmanite Silk™   milling rails:

  • Lengths up to 2.1m (7 feet) with cutters up to 250mm (10 inches)

3D and 4D milling machines (sometimes referred to as picture frame milling machines):

  • Up to –‘x’ axis 1.8m (70”), ‘y’ axis 300mm (12”), ‘z’ axis 140mm (5”), cutters up 250mm (10”)

Key mills:

  • Up to – ‘x’ axis 200mm (8”), ‘y’ axis 57mm (2”), cutter to suit size of keyway to be cut

Surface finishes achievable with milling machines:

  • 1.6mm Ra to 6.3mm Ra (63 CLA to 250 CLA)

Achievable tolerances:

  • Key mill – size + 0.012mm (0.0005”) all axis
  • Furmanite SilkTM milling rails – ‘x’ size + 0.025mm (0.001”), ‘z’ size + 0.012mm (0.0005”)
  • 3D and 4D mills – ‘x’ size + 0.025mm (0.001”), ‘y’ and ‘z’ sizes + 0.012mm (0.0005”)

Power requirements and utilities required on site:

Air powered machines

  • 2.69m3/min @ 6 bar (95 CFM @ 90 PSI)

Hydraulic powered machines-

  • 415 – 440V 63 Amp 3 phase socket or outlet


Turning covers a large range of applications and different processes, the most common of which is journal machining. Furmanite has a range of purpose built machines for this work. In general, the machines are attached to the end of the fixed shaft or clamped to the outside diameter. Often it is only necessary to expose the area of plant or the component part to be re-machined, thus avoiding major time delays due to dismantling and costly off site transportation to a conventional workshop.

Typical turning operations include:

  • Journal turning on worn or damaged shafts for bearing surfaces, both inboard and outboard
  • Modify shafts to accept new or changed bearing configurations
  • Machine shaft seal areas and faces
  • Re-facing alternator slip rings
  • Machine drive shaft and coupling arrangements


Milling is used to either produce a plane surface or to cut out pockets or windows in metal structures. Furmanite has a range of milling machines, both the 2-axis (milling in an XY plane) and 3-axis types (milling in an XY&Z plane). A range of single purpose milling machines for undertaking specific operations is also available.

Typical operations include:

  • Milling pump or generator bases and bedplates
  • Milling division plate on heat exchangers
  • Milling flat bearing surfaces
  • Milling pockets and penetrations in structures
  • Milling gun, missile and rocket launcher seats on war ships
  • Milling flat press bedplates
  • Machining flat square flanges, manways and shaped inspection and hatch covers
  • Machining internal and external shaft keyways

Furmanite - Innovative since 1920

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Furmanite Leak-Sealing process is Developed The under pressure Leak Sealing process is developed by Eugene Clay Furman at the Newport …

First DIY Leak-Sealing Kit old-furmanite-leak-sealing-equipment 01/01/1924

First DIY Leak-Sealing Kit The first do-it-yourself Leak Sealing kits were developed and marketed by Clay Furman and while they …

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Long Standing Relationships US customer reference list that includes individual war ships in the US Navy, US steel companies and …

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1st Patent is filed in 1927 The Furmanite patent for the leak sealing process filed in 1927 was the first …

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Furmanite moves Overseas First overseas agents appointed to market the leak Sealing kits including in the United Kingdom and Euro…

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Price List from 1926 Table detailing costs of allowing a steam leak based on $4 per ton for “Long coal”. …

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Furmanite is thinking global A brief history of the United Kingdom Company written by A W Forsyth (OBE) in September 1973 …

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Technology Development Furmanite Expands Engineering on Leak Sealing Technology. Photographs taken from a 1934 sales brochure together with schematics of …

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Growing Furmanite Letter from the Chairman of Furmanite Engineering based in Birkenhead, England to his lawyer requesting information on a …

New Direction New-Technology_thumb 01/01/1966

New Direction Alan Forsyth, acting as a consultant to Furmanite Engineering (1929) advised the Board to move from selling low …

Never compromise on the high quality Company-History-July-1979_thumb 07/01/1979

Never to compromise on the high quality A brief history of the United Kingdom Furmanite organisation written by Joyce Hainsworth, the …

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Best in the business were called Furmanite successfully seals nitrous oxide leakage on the Space Shuttle “Discovery” pre launch September …

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Start of Modern Furmanite The common shares of Furmanite were acquired by Kaneb Inc on 24th January 1991. Furmanite remains …

Acquisition-GSG Division Acquisition-GSG-Division_thumb 01/13/2006

Acquisition of Flow-Serve GSG Division Furmanite as part of Xanser Corporation acquired the General Services Group (GSG) of Flow-Serve corporation …

Corporate Name Change Corporate-Name-Change_thumb 01/13/2007

Corporate Name Change Xanser Corporation (NYSE:XNR) changed the company’s name to Furmanite Corporation, and the company’s shares were traded on …

Acquisition of SLM Acquisition-of-SLM_thumb 04/13/2011

Furmanite Corporation Acquires Self Leveling Machining Technology Furmanite expanded  its global on-site machining capabilities through the acquisition of Self Leveling …


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