Silk AX321
Flange Facing Machine
I/D Mounted Flange Facer

Silk AX321 Flange Facing Machine

3″ ID to 21″ OD

75 mm ID to 533 mm OD

Silk AX321 Flange Facing Machine PDF
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At 26.5kg (58lbs.), the AX321 is the lightest flange facing machine in the Silk range.

It is bore mounted and covers a range of flanges from 75mm (3”) internal diameter to 533mm (21”) external diameter.

Depending on the flange bore size, rapid and effective internal mounting is achieved via a unique system of collets, or by a spigot base for the larger diameters.

The cutting tool feed assembly consists of four rails and a crosshead with a swivelling tool post that are supported by precision linear bearings, providing both rigidity and extreme accuracy.

The feed gearbox provides two cutting tool feed rates and is supplied with an additional lead screw to provide a total of four feeds. The machine is driven by a 0.8kW (1.1hp) pneumatic motor mounted either vertically or horizontally, if space is restricted

For bore diameters up to 6 inches a unique system of collets is used, permitting very rapid and precise mounting.

Fine adjustments can be made both vertically and radically.

For bore diameters between 6 inches and 10 inches the collets are replaced by a triangular extension base. Adjustable clamps are fitted to the corners, or alternatively to the straight faces of the triangular base.

These permit fast centring in the bore before the machine is mounted.

The Silk AX321 machine is driven by a 0.85 hp pneumatic motor.

This fits vertically to the drive hub, which provides direct drive input to the gearbox.

The feed assembly consists of four feed rails and a crosshead supported by precision linear bearings, which assure a high degree of rigidity and accuracy.

The tool post can be fitted to either side of the crosshead.

By using two gear ratios and two interchangeable lead screws, four distinct finishes can be achieved.

Intermediate finishes can be obtained by varying the cutting tools.

Operational Benefits

  • Precise and robust
  • Compact and portable
  • Internally mounted
  • Operates in any orientation
  • Cuts “O” Ring grooves, RTJ and other V grooves, standard and compact flange facings, weld preparations, etc.
  • Achieves surface finishes from 6.3mm Ra to 1.6mm Ra (250min Ra to 63min Ra) when turning and from 1.6mm Ra to 0.8mm Ra (63min Ra to 32min) when polishing
  • Pneumatic drive permits use in hazardous areas. Optional hydraulic drive is available on request
  • Provided in own transportable case

Silk AX321 Flange Facing Machine

  • The Silk AX321 is a compact, lightweight machine, which can be carried and operated by one man.
  • It is constructed from the highest quality materials and designed to give finishes of machine shop accuracy on flanges with a diameter range of 3-21 inches.
  • Height (excluding air motor) 12″ (305 mm)
  • Rotational diameter (including air motor) 21.85 ” (555 m,m)
  • Max Swing 21″ (533 mm)
  • Min Swing 14.25 ” (360 mm)
  • Tool Post Travel 2″ (50 mm)
  • Arm Clearance 1.88″ (48 mm)
  • Flange range 3″ to 21″ (75 mm to 533 mm)
  • Small Collet 3″ to 4″ (75 mm to 100 mm)
  • Medium Collect 4″ to 5″ (100 mm to 125 mm)
  • Large Collect 5″ to 6″ (125 mm to 150 mm)
  • Extension Base 6″ to 10″ (150 mm to 250 mm)
  • Drive Motors 0.85hp:
  • Minimum air supply requirement 80 psi / 80 cpm
  • Drive Motor Output Speed 350 RPM
  • Final Rotational Speed 40 RPM  (aaprox)
  • Final rotational speed 46 rpm
  • Weights
  • Weight Less Base 58 lbs (26.5 kg)
  • Mounting Collect Assembly 9.5 lbs (4.26 kg)
  • Extension Base 16.5 lbs ( 7,5 kg)
  • Net Weight ( less wooden crate) 105 lbs (48 kg)
  • Total shipping weight 172 lbs ( 78 kg)
  • Wooden Case Dimensions
  • Length 23″ (590 mm)
  • Height 16″ (406 mm)
  • Width 20 ” (510 mm)
Cutting Speed (per rev) Course Settings Fine Setting
     
Course Leadscrew 0.039” (1.00 mm) 0.010” (0.25 mm)
Fine Leadscrew 0.026” (0.66 mm) 0.006” (0.16 mm)
Silk AX321 Flange Facing Machine PDF

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