Services

Cobham Aluminium & Stainless Holdings offers many value-added offerings in the way of in-house machining and precision processing of non-ferrous alloys. Cobham Aluminium & Stainless Holdings Coil Processing Department has one (1) leveling line, two (2) slitters, and one (1) transverse winder capable of processing various widths, lengths and thicknesses.

Whatever your need for custom fabrication, Cobham Aluminium & Stainless Holdings Limited has a way to meet that need and exceed your expectations. Please contact our Machining Specialist to inquire on any special needs such as Centerless Grinding and precision Gun Drilling.

  • Cut to Length
  • Shearing
  • Metal Slitting
  • Sawing
  • Honing
  • Deep Hole Boring
  • Turning/Lathes
  • Straightening Press

Cut-to-Length

Cut to Length - The Trident Company

Rowe Leveling Line with Herr-Voss Shear: .032” to .160” smooth aluminum and tread plate up to .125” thick. We have the ability to level epoxy coated steel and painted aluminum, as well as PVC both sides of a sheet while processing if needed.

  • Master Coil: 10,000# Maximum, with 20” to 24” I.D. and 72” O.D. Maximum
  • Smooth Aluminum Thickness: .020” Minimum to .160” Maximum
  • Thread Plate: .125” Maximum
  • Stainless Steel Thickness: 20 gauge Minimum to 12 gauge Maximum
  • Width: 34” Minimum to 60” Maximum
  • Length: 24” Minimum to 240” Maximum
  • Large quantity only: Guard can be removed for 18” Minimum
  • Tolerance: Length and Flatness @ 1/16”, Squareness @ +/- 1/16”

 

Shearing

shearing

Steelweld Shear: We have the ability to cut straight lines on flat Aluminum or CR Steel metal stock.

  • Maximum Width: 60”
  • Maximum Length: 12’
  • Thickness - Aluminum: .020” Minimum to, 190” Maximum
  • Thickness – CR Steel: 22 gauge Minimum to 14 gauge Maximum
  • Tolerance: +/- .063”

Slitting

Slitting - The Cobham Company

Ruesch Small Slitter: Various thicknesses with width ranging from 1” to 13” from 14” wide 2,500# master coil. Copper and Brass only.

  • Master Coil: 2,500# Maximum with 16” I.D. and 14” Wide Maximum
  • Slit Width: 1” Minimum and 13” Maximum with 8” Minimum to 12” Maximum I.D.
  • Tolerance: +.002” / -.000”

**Copper and Brass Only – NO Aluminum**

Braner Large Slitter: .014” to .20” thick from .500” minimum. 1100-O and 5005-O. 3003-H14 and 5052-H32 from 2.500” minimum

  • Master Coil: 1100-0: 10” and 24.50” wide and 4,200# to 5,700#
  • Master Coil: 5005-0: 24.50” and 4,200# to 5,700#
  • Master Coil: 16” I.D. with fiber cores
  • 24” Master Coils: Slit .500”, .562”, .568”, .578”, .603”, .637”, .687”, .690”, .699”, .710”, .742”, .762”, .772”, and .782” with solid set of knives.
  • 10” Master Coils: Ability to shim and slit other sizes but .500” is the minimum.
  • Minimum Width: 2.50”
  • Maximum Width: 36” wide and re-coiler has 16” I.D. only
  • Thickness: .014” Minimum and .050” Maximum
  • Tolerance: +.002" / -.000”

**3003-H14 and 5052-H32 only. No 6000 or 7000 series**

Ideal Traverse Winder: A machine that will spool coil that has been slit and traverse wind the material back onto a spool. Our capabilities are: Traverse winding and welding150# pancake coils into 850# spools in 1100-O and 5005-O only.

Sawing

Sawing - The Cobham Company Cobham Aluminium & Stainless Holdings has many types of saws for cutting to the customer specifications. 24" Saw

  • Tolerance: +.032-0 to .125-0
  • Width: .190" to 7.5x (thicker material with min. tolerance of .125)
  • Shortest length: .750 to 24”
  • Longest length: .750"
  • All Aluminum Alloys: 144”

#1 Metal Saw

  • Tolerance: + 1/16-0 to +1/8-0
  • Thickness: .250 to 3”
  • Width: 1.5” to 72"
  • Length: 144"
  • Shortest length: .750
  • Longest length: 144”
  • All Aluminum Alloys

#2 Metal Saw

  • Tolerance: +1/16-0 to 1/8-0
  • Thickness: .250 to 6“
  • Width: 1.5” to 144
  • Shortest length: .750
  • Longest length: 144”
  • All Aluminum Alloys

Precision Metal Saw

  • Tolerance: +.010-.010 to 1/8-0
  • Thickness: .190 to 6”
  • Width: 1.5“ to 48” with tolerance of +-.010
  • Width: 1.5” to 72” with tolerance of +-.030
  • Shortest length: .750
  • Longest length: 144”
  • Thicker plate higher tolerance
  • All Aluminum Alloys

Oliver Saw

  • Tolerance: +1/16-0 to 1/8-0
  • Thickness: .250 to 6”
  • Width: 1.5” to 192“
  • Shortest length: 3”
  • Longest length: 144”
  • All Aluminum Alloys

Doall – Circle Saw

  • Tolerance: +.125 to -.125
  • Thickness: .250 to 10”
  • Diameter: 10” to 60”
  • All Aluminum Alloys

3 Hem Saw

  • Tolerance: +1/16 -0 to +1/8 -0
  • Width: 24”
  • Diameter: 24”
  • Length: .375 to RL

1 Hem Saw

  • Tolerance: +1/16-0 to +1/8-0
  • Width: 39”
  • Diameter: 39”
  • Length: .5 to RL

Honing

Honing - The Cobham Aluminium Company

Honing is an internal grinding process that produces a uniform size and fine finish as required in hollow parts. Cobham Aluminium & Stainless Holdings Limited horizontal honing machines can hone bores from 1.250” to 9.100” inside diameter up to 40 feet in length with finishes from 32 RMS thru as honed finishes.

  • 7 – General / Barnes Hones
  • 96.0” on 1.250” – 2.00” hones
  • 2.00” to 9.10” length capabilities to 40 Feet

Deep Hole Boring

Deep Hole Boring - The Cobham Aluminium Company Large Deep Hole Boring: Deep Hole Boring is a machining process that enlarges an existing hole or bores a hole in solid bar. Cobham Aluminium & Stainless Holdingsy is specially equipped for deep hole boring processes such as: Pull Boring, Counter Boring, Match Boring, Step Boring and Trepanning. Large Holes

  • 7 – Wohlenberg Machines
  • 2.000” to 14.00” ID
  • Length capabilities to 34 Ft one direction

Small Holes

  • 3 - M630 Sig Machines
  • 1.00” to 6.00” ID
  • Length capabilities to 13 Ft one direction

Small Deep Hole Drilling: A machining process that produces holes up to one hundred times diameter in depth. This would include gun drilling and solid boring. Deep hole drilling may be ordered in hole sizes from .500” to 1.000” inside diameter.

  • 1 - B17 Sig Machine
  • .500” to 1.00” ID
  • Length capabilities discussed on an individual basis
  • (Typically 6.0” to 96.0”)

Trepanning: A drilling process that leaves a core. Holes sizes from 4.5” to 8.5”.

Turning / Lathes

Tuning Lathe - The Cobham Aluminium Company

The process of reducing the outside diameter of a bar or tube. We offer rough turning and finish turning holding concentricity between inside and outside diameters. We are capable of turning anything we can bore.

  • 7 Lathes
  • Through hole up to 12-5/8”
  • Length capabilities to 40 Feet

Straightening Press

Straightening Press - The Cobham Aluminium Company

Cobham Aluminium & Stainless Holdings has the ability to straighten bar stock or tubing material that is bent, warped, or kinked.

  • 1 – 40 ton capacity
  • 1 - 350 ton capacity
  • 1 - 1000 ton capacity