Intelligence – Insight – Ingenuity

Which is the right casting process for me?

High Pressure
Die Casting  


High Pressure Die Casting provides the shortest route from molten metal to completed component. Molten aluminium or zinc alloy is injected into a hardened tool steel mould and allowed to solidify under pressure before ejection.

 arrow

Tooling

Hardened tool steel moulds. Relatively expensive tooling, but pays back in lower unit costs.

Volumes

The most economic method for high volume production, typically demand of 2,000 to­ 500,000 per annum.

Wall Thickness

Min. Wall Thickness 1-2mm.

Surface Finish

Excellent Surface Finish. No trimming required apart from to remove in-gates.
 

Accuracy

Highest dimensional accuracy.


High Pressure
Die Casting

Find out more

Gravity
Die Casting   


Gravity Die Casting employs cast iron moulds which allow aluminium and zinc castings to be produced more accurately and cheaply than with sand casting. Rapid chilling gives excellent mechanical properties whilst non-turbulent filling ensures production of heat treatable gravity castings with minimal porosity.

 arrow

Tooling

Cast Iron or Steel Moulds. Moderate tool and unit costs.
 

Volumes

Suits demand of 250 to ­50,000 per annum.
 

Wall Thickness

Min. Wall Thickness 3-4mm.

Surface Finish

Good Surface Finish, but with slight texture due to die coatings.
 

Accuracy

Moderate dimensional accuracy


Gravity
Die Casting

Find out more

Sand
Casting  


Sand casting offers the simplest medium for production of non ferrous castings, by pouring molten zinc, aluminium or copper alloys into a sand mould.

 arrow

Tooling

Wooden or Resin Patterns. Lowest Tooling cost, but higher unit production costs.

Volumes

Ideal for prototypes and small volume production, of 1 to 500 per annum.
 

Wall Thickness

Min. Wall Thickness 3-5mm.

Surface Finish

Fair Surface Finish. Parts will generally be shotblast to improve appearance after removal from the mould.

Accuracy

Least accurate process


Sand
Casting

Find out more

Take a look at how we work

Find out more information about MRT Castings and get a taste of our facilities.

Check out our virtual tour and find out how we can work with you on your next project. 

Watch our video here
 

HOW can MRT Castings help you?

I want...

New at MRT

MRT's sites on the Walworth Business Park in Andover are now re-opened, following the evacuation yesterday afternoon of the area whilst the amazing Hampshire Fire & Rescue Service dealt with a major incident nearby.  Normal operations at MRT are resuming now, and our site is unaffected.

Read More
Zoller Logo Resized

Purchasing a Zoller Smile420 Tool Pre-Setter has seen an overwhelming improvement in productivity and wasted downtime.

Read More
Colosio Logo2

MRT Castings is delighted to announce the purchase of a new PFO250 fully automated, die casting cell, from Italian manufacturer Colosio.  

Read More

Powered by