Silk FXB630
Flange Facing Machine
I/D Mounted Flange Facer


Maximum Clamping Capacity

6 inches ID to 30 inches OD

Silk FXB630 Flange Facing Machine PDF
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The FXB630 Flange Facer is modular, compact, and of lightweight construction, designed to resurface flanges ranging from 153 mm (6”) internal diameter to 762 mm (30”) external diameter.

It is internally mounted and comes as standard with three clamping modules.

Driven by a 1.7kW (2.3hp) pneumatic motor, this machine is a true workhorse.

Additional versatility is offered by the dovetail slide mounted tool post, which may be swivelled when machining V grooves.

The durable feed gearbox on this machine offers four automatic feed rates to ensure accurate machine settings for a variety of surface finishes.

The versatility of the machine can be expanded via a host of “Bolt-On” extras which are available on request.

Three separate, hard anodised cast aluminium bases with steel threaded inserts, and adjustable feet enable the machine to be installed perfectly level and central in any flange from 153mm (6″) to 762mm (30″) in diameter.

Each assembly consists of a flat triangular casting with a radius across each corner, a hole is tapped into these corners along with one on each flat side which enable the bases to be centralised into a variety of bore sizes.

Setting straps are also provided to help in the original positioning of the base to the correct depth.

The machine is driven by a 1.2kw (1.5hp) pneumatic motor, mounted directly to the drive hub assembly.

This hub provides the drive input to the gearbox and provides a rigid support for the surfacing arm.

The whole hub assembly casting is powder coated after machining for a knock resistant finish.

This is mounted directly to the drive hub assembly and with the use of either lead screw provided gives specific surface finishes, (see table opposite).

Traverse is selected by a push/ pull rod, which selects traverse IN, traverse OUT and a neutral N position, which is used for manually positioning the tool.

Mounted on the drive hub assembly this provides the rigid structure to which the toolpost is fitted.

It can achieve cuts up to a maximum depth of 2mm (0.079″) on flanges without boltholes or 0.5mm (0.02″) with holes and can achieve a flatness better than 0.04mm (0.0015″) at 762mm (30″) diameter.

All slideways are coated for rust resistance and 12mm square tooling is supplied as standard.

Operational Benefits

  • Precise and robust
  • Compact and portable
  • Externally 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 FBX630 Flange Facing Machine

  • The SILK FXB630 is constructed, as is the rest of the range, from the highest quality materials.
  • It is designed to give machine shop accuracy combined with ease of handling and portability in the flange range of 6 inches (153mm) ID to 30 inches (762mm) OD.
  • Lens Ring Seat Cutting & Polishing
  • ‘V’ Groove Cutting
  • Tube Sheet Machining
  • Minimum Diameter 153mm / 6″
  • Maximum Diameter 762mm / 30″
  • Machine Height 330mm / 13″
  • Machine Weight 62kg / 136.7ibs
  • Maximum Rotational Diameter 813mm / 32″
  • Minimum Rotational Diameter 635mm / 25″
  • Depth of Flange Required to set the base using standard parts 83mm / 3.1/4″
  • Machine Height above flange face standard settings 317mm / 12.1/2″
  • Minimum Recommended Bore 153mm / 6″
  • Maximum Recommended Bore 711mm / 28″
  • Tool Post Travel 40mm / 1.5/8″
  • Recommended Air Supply 1.77m / M,6 bar – 60cfm, 90psi
  • Drive motor: 0.66kw (0.85hp)
  • Minimum air supply requirements 5 bar 2.26m3/min (80psi 80cfm)
  • Drive motor output speed 1600rpm
  • Final rotational speed 33
  10 TPI 6 TPI
  .8 RAD .8 RAD
1 40 CLA 55 CLA
2 50 CLA 75 CLA
3 80 CLA 140 CLA
4 175 CLA 325 CLA
  .4 RAD .4 RAD
1 65 CLA 75 CLA
2 80 CLA 95 CLA
3 100 CLA 175 CLA
4 175 CLA 400 CLA
  .8 RAD .8 RAD
1 1.0 RA 1.9 RA
2 2.0 RA 2.35 RA
3 2.5 RA 4.37 RA
4 4.37 RA 10.0 RA
  .4 RAD .4RAD
1 1.67 RA 1.69 RA
2 2.0 RA 2.35 RA
3 2.5 RA 4.37 RA
4 4.37 RA 10.0 RA
Silk FXB630 Flange Facing Machine PDF
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