Fine Limit Sheet Metal

The highest standards of technical competency are coupled with state-of-the-art machinery to ensure that Propak consistently deliver the highest quality sub-contract fine limit sheet metal and finishing.

From one-off rapid prototyping, to full scale batch production, we work as your production partner, offering an agile and flexible service all backed up excellent design support and the highest standards of quality control.

Our engineers use the latest CAD/CAM programming and design software to optimise the manufacturing process helping to provide our customers with the most cost effective manufacturing solutions.

Whether it is complex assemblies, bespoke bracketry or simple enclosures, we provide an end-to-end solution to seamlessly become your strategic sub contract manufacturing partner:

CNC Fibre Laser Profiling Technology
CNC Punching
Coded Welding (Defence & Aerospace Standards)
Press metal forming, rolling and bending.
CNC controlled machining
Bush Insertion
Fettling & Linishing
Fast Track Prototyping & Pre-Production
Steel, Stainless Steel, Aluminium, Bronze, Copper
For surface finishes see link.

With our value-added services such as KANBAN stock holding, product design, prototyping, electro-mechanical integration and assembly; Propak customers are confident of an efficient, quality conscious and reliable service, all executed within one company.

CNC Laser Cutting

Propak make significant and continued investment into state-of-the-art laser processing machinery and technology. Our Lasers provide us with a complete flexibility in the manufacturing process allowing us to:

Reduced product lead times to meet the most demanding project timescales
Easily adapt to changing delivery requirements to provide fast turn around
Continually guarantee precision parts & performance
Process a wide scope of material including copper & brass
Flexibility to process materials up to 25mm
Cost efficiency through less wastage and material optimisation

Currently we run two laser machines 24 hours a day:

5Kw Trumpf TruLaser 5030 – Fiber Optic
5kw Trumpf Trulaser 5030 – Laser

Materials & Sizes:

3000 x 1500 sheet size
Mild Steel – 25mm
Zintec and Pre-Galv – 25mm
Stainless Steel – 20mm
Aluminium – 15mm
Copper – 6mm
Brass – 6mm

CNC Punching

Our CNC Punching Machine Centres are directly networked to our Design & Programming office, where our programmers use the latest CAD/CAM software technology to both run the machines and automate the layout of parts to optimise material usage. This keeps waste to a minimum and helps us to provide our customers with rapid delivery times and competitively priced parts.

We receive files in 2 or 3D format such as DXF, DWG, IGES, STEP or ACIS. Our programmers then use these files to create the components flat sheet metal pressings which can be anything from simple holes to complex geometric shapes.

Our customers benefit from our wide range of tooling which also helps reduce the amount of fabrication following on from cutting the sheet blanks, making manufacturing more efficient for our customers:

Piercing and Punch sheared edges
Forming tabs
3D Ribs on either side of the sheet
3D Dimples
Embossing
Form 3D Louvre slots and upforms
Extruding
Slots & recesses
Countersinking
Taptite screw thread plunges
Electrical knockouts
Small tab folding
Tapping

Once programmed, small batch runs can seamlessly be scaled-up to larger scale production runs to suit our customers supply demands. The flexibility of this operation does not stop here as our CNC Punching Machines have incredibly high accuracy and the capability to punch components from sheet sizes of 2500mm x 1250mm at the following thicknesses:

0.5mm – 6mm Stainless Steel
0.5mm – 6mm Mild Steel
0.5mm – 6mm Aluminium
0.5mm – 6mm Zintec
0.5mm – 6mm Copper
0.5mm – 6mm Brass
0.5mm – 6mm Pre-Coated Steels.

Programming

The programming & design development department at Propak is fully equipped to ensure that our customer’s products are produced and manufactured in the most economical and efficient way possible.

The latest programming software allows Propak to receive drawings sent by any means and with direct network links to all punching & Laser centres. It allows Propak to promptly implement production and rapidly adapt changes to design specifications.

MerryMech SMP81 Software
Mech Desktop 2019
RADAN
Inventor 2019
Solid Works
TRUMPF TrueTops
Corel Draw 17
IGES/STEP/DXF/ACIS
Pro-E Wildfire 5
DXF Translators
Autodesk

Metal Folding & Forming

With 12 CNC bending machine centres operating 24 hours a day, we have extensive capacity to fulfil our customers’ requirements.

Propak partner with world class metal folding machine suppliers, Amada and TRUMPF. Their machinery is the most high-tech and are driven by latest and most innovative software. From programming to set-up and actual bending they are the fastest and most accurate, which leads to lean manufacture and increased productivity. Machines are operated by our highly skilled engineers who handle parts with utmost care to avoid marking and maintain the highest levels of finish.

Linked to 3D CAD/CAM programming systems, our brake presses are fully equipped to seamlessly manufacture parts with many bends and high levels of complexity.

Our impressive range of brake presses include the TruBend Series 5000, which is TRUMPF’s most successful bending machine in the world, 3m Amada HSE 3i and the fastest and most efficient machine on the market Trumpf Trubend 7000.

The diversity of our machinery provide us with the versatility to form almost any shape or angle and enables us to offer customers the most cost-effective metal folding solutions at all times.

2 x 5m Trumpf TruBend Series 5000
12 x 2m Amada HFE-M2 Series
1 x 3m Amada HFE3i
1 x Trumpf Trubend 7000

Materials & Sizes:

3m sheet size
Vast range of tooling to form any shape or bend
Mild Steel – 25mm
Zintec and Pre-Galv – 25mm
Stainless Steel – 20mm
Aluminium – 12mm
Copper – xxmm
Brass – xxmm

Welding (Coded & Commercial)

As fine limit sheet metal manufacturers, welding and spot welding form a huge part of our offering. We offer welding to meet both commercial standards and also Coded Welding to Defence & Aerospace Standards; Marine, Oil & Gas Industry Standards. (BS4872 Part 1&2 and BCAR Subsection 4.8 Chapter A810)

Our welding engineers are highly trained and best-in-class, as the welding of light and medium gauge aluminium, mild steel and stainless steel requires the highest level of skill to achieve a high quality finish with no heat distortion.

Operating 24 hours a day, with 12 dedicated welding bays, we can offer huge capacity and the flexibility to meet and exceed our customers demands. All bays are fully equipped with full MIG and TIG facilities to weld all ferrous and non-ferrous materials.

Quality is not lost in the finishing of our welding process. We have a team of dedicated team linishers and fettlers who specialise in metal dressing, promoting the highest level of consistency and quality of finish.

To accompany this, we offer stainless steel polishing, graining and bead blasting, and have recently invested in the latest Time Saver finishing machine, which is purpose built produce a variety of finishes, including edge rounding and vibro finishes.

Coded Welding to Defense & Military BS4872
Aluminium, Steel & Stainless Steel
150 KVA Spot Welding
Aluminium Spot Welding to 333xxxmm
Stainless Steel Spot Welding to 333xxxmm
Mild Steel spot welding to 333xxxmm

Linishing & Cleaning

Linishing and fettling is very much a specialisation at Propak as, with the right skill levels, welded joints are imperceivable.

To ensure we achieve the very highest standards Propak run a dedicated team of fettlers and linishers whose specialisation is the cleaning and finishing of welds. They have no crossover in to any other part of the manufacturing process and, as such, specialising in this process ensures that they have the experience to produce finishes of the very highest standards in the industry.

Our recent investment in the latest Time Saver finishing machine, see us take our finishing to the next level. The machine is purpose built produce a variety of finishes, including edge rounding and vibro finishes ready for finishing in our in-house painting or plating factory.

Stainless Steel Graining & Polishing

Stainless steel offers the highest levels of durability and corrosion resistance and can be finished without the need for painting or plating.

We are able to offer a range of stainless steel finishes:

Polished

Brushed or vibroed

Grained

Glass bead blasted.

Bush Insertion

When it comes to stud and bush insertion we believe we can offer a service in a class of its own. Bush insertion is a manual process, so we employ operators that are conscientious and methodical in their approach.

We perform first off and batch inspection checks to make certain that all bushes components are complete first time every time.

Say something about PEM studs stainless steel studs etc

1 off Jervis press 6 ton capacity.
2 off Hare 500 press 7 ton capacity.
2 off Haeger press 6 ton capacity.
1 off PSM press 6 ton capacity (2000 lb PSI).

Stainless Steel Fabrication

Propak serve many customers in the Oil, Gas, Marine and Subsea industries. Many of their products and parts demand the highest grade of 314 or 306 stainless steel. With stainless steels’ high levels of durability and corrosion resistance it can be finished without the need for painting or plating.

Propak have a dedicated team that specialise in the welding, fabrication and finishing of stainless steel and our customers have come to rely on Propak for all of their stainless steel fabrication requirements.

Propak offer a range of finishes:

polished
brushed or vibroed
grained
glass bead blasted.

FROM PRODUCT DESIGN & DEVELOPMENT TO MANUFACTURE & SURFACE TREATMENTS
- ALL PROCESSES ARE CARRIED OUT IN-HOUSE TO THE HIGHEST QUALITY.