Whether your needs are simply for ‘black’ casting or for a fully certified finished product, H.Downs & Sons can meet your needs for any additional services required.

Contact us01484 428203

Engineering Castings

We manufacture a broad range of castings to British Standards, across many industry sectors. Click on the images below to find out more about the typical castings we produce.

  • Extruder

    Extruder Parts
  • Wear Plates

    Wear plates
  • Double Impellor

    Double Impellor
  • Drain & Cover

    Drain and cover
  • Bars, Block & Rings

    Bars, Blocks and Rings
  • Saline Pump

    Saline pump
  • Pump Casing

    Pump casing
  • Pump Casing

    Pump casing
  • Windmill renovation

    Windmill renovation
  • Valve Casting

    Valve casting
  • Machine Bed

    Machine bed
  • Route Plaque

    Mayoral Route
  • Standard Sinker Weight

    Standard Sinker Weight
  • Trinity Sinker Weight

    Trinity Sinker Weight
  • Private Bridge

    Private bridge
  • Church Window

    Church window
  • Casing

    Dresser Roots
  • Printing Casting

  • Compressor Cylinder

  • Crown Wheel

    Crown wheel
  • Paddle Mixer

    Paddle mixer arm
  • Valve Body

    Valve Body

Extruder parts

At the front are two halves of an extruder part, the internal ribs are cast by the use of a core box. The material is a grade 300 cast iron, giving added strength and a little extra wear resistance.

Extruder Parts

Wear Plates

‘Wear Plates’ for a pan bottom used for crushing stone and clays for such things as brick making. The plates are made from Ni-Hard, the material is too hard to drill so the bold holes are cast in using cores. There is a lifting eye on each casting which is removed when it is in position. The castings line the bottom of the pan and are replaced when worn.

Wear Plates

Double Impellor

An impellor made in Ni-Resist S2W. The blades are on both sides of the casting. Another pump part for salty water.

Double impellor

SG Iron drain & cover

These were made as a small special batch for a company which wanted to keep the same style of drainage to complement their existing drainage, however, the area they were being used required substantial strength to cope with the passage of heavy vehicles.

SG iron drain and cover

Sinker Weights - Standard Design

We can produce cast iron weights or sinkers supplied to your own design and fitted with lifting shackles or cored out for bars for attaching hawsers.

Sophisticated shaped weights for forklift trucks, ship's keel, keel weights can be manufactured to suit the customer's design.

We manufacture a Standard design which incorporates the following:

  • Forklift access for ease of handling
  • Stackable
  • Cast in Steel eye bolt to suit your attachment
  • Cast in weight identification
  • Flat and wide for sea bed adhesion

Available in the following weights:

100kg, 120kg, 125kg, 150kg, 200kg, 250kg, 450kg, 500kg, 600kg, 750kg, 1000kg, 2000kg, 3000kg, 4000kg, 5000kg

Standard Sinker Weights

Sinker Weights - Trinity Design

We can produce cast iron weights or sinkers supplied to your own design and fitted with lifting shackles or cored out for bars for attaching hawsers.

Sophisticated shaped weights for forklift trucks, ship's keel, keel weights can be manufactured to suit the customer's design.

Purpose built sinker weights, designed by Trinity House. Cast with a concave base for added suction to the seabed. Forged steel bars for shackles. Available for immediate production in the followings sizes.

1000 Kg, 2000 Kg, 3000 Kg, 4000 Kg, 5000 Kg

Trinity Sinker Weights

Bars, Blocks and Rings

Manufactured from Grey Iron, SG/Ductile, Ni-Resist, Ni-Hard, Chrome Irons, Haematite, ADI and Iron Alloys to any shape and size including:

Bar, Rectangle, Square, Discs, Blanks, Rings

For unavailable sizes we can produce economically any diameter upto 3.5m. For rings, with larger inside diameters, we cast a hole in the middle saving on machining time.

For longer lengths and smaller diameter, our friends at United Cast Bar (Tel 01246 269 293) manufacture many materials by continuous casting process through dies.

For sizes less than 12" (300mm) diameter they will be more economical, long lengths of bar can be produced.

Bars, Blocks and Rings

BS ENBS EN 1560BS EN 1452BS EN 1561BS EN 1563BS EN 1564BS EN 1564BS EN 1564
ASAS 1830AS 1831    
MM 3191M 3193     

Ni-Resist S2W pump

Ni-Resist S2W pump part for saline water operation. The use of Ni-resist for saline conditions is common, the structure and chemistry of the iron is much more resistant to the corrosive effects of the water, The ‘W’ in the material specification denotes that the material can be welded.

Ni-Resist S2W pump

Ni-Resist S2W pump casing

Ni-Resist S2W pump casing. This one was for use on a dredger vessel, again for the benefit of the composition of the material and its tolerance to the corrosive brackish waters of estuaries.

Ni-Resist S2W pump casing

Pump casing manufactured in SG 600/3

A complex casting with various flow channels and entrances and exits.

Pump casing manufactured is SG 600/3

Windmill renovation

Half a water wheel 12 foot diameter, the centre square area is where the axle is fitted, the cross members between the two diameters are where the paddles will be fitted.

Windmill renovation

SG Iron 700/2 valve casting

The SG iron provides a greater strength than normal cast iron and this grade has good hardness to contra the abrasion of the flow of material.

Valve casting

Machine bed

The photograph is taken in the shotblast room before the casting is fettled to remove the excess material around the cored holes and the joint lines of the pattern. The finished casting weighs 4.2 Tonne and the equipment consists of 1 x pattern 30 core boxes and 35 loose pieces. Some of the cores are repeated in the mould and the loose pieces are used to allow undercuts in the finished casting. The casting is made in one of three pits that are within the foundry floor.

Cast Iron machine bed

A simple route marker

The castings are embedded into the walkway/pavement, some can be directional including arrows, some commemorative. The iron is hard wearing and will take on a natural patina as it is walked over. We have achieved the ripple effect to make the letters more pronounced. The casting has a lip beneath to anchor it into the concrete.

A simple route marker

Private bridge

A private bridge was severely damaged by a fallen tree. Replacement castings were required for all sections, the weight of the tree had cracked the whole structure, top, side and lower sections. In some areas we could we the existing pieces of bridge to replicate. Other pieces required some new pattern making input.

Private Bridge

Church window

A replacement church window damaged in restoration

Church window

Blower body

3 Tonne Blower body for Dresser Roots. The bodies are from pumps which move by vacuum as opposed to the medium passing through the body.

3 Tonne Blower body

Printing machine casting

Castings supplied for a machine designed for the continuous supply of paper to a printing machine.

Printer feed casting

Compressor Cylinder

Compressor Cylinder cast in Grade 300 Cast Iron.


Crown wheel

Crown wheel for driving a crushing machine used in a quarry. The teeth are cast in. The picture shows the mould split with the pattern painted silver still held in the top half of the mould. When the pattern is removed the mould top will be put on and the molten metal poured into the mould will fill the cavity.

Crown Wheel
Paddle mixer

A paddle mixer arm

Produced for ICI Chemicals to stir acidic material in large vats.

Valve Body

Valve body

96" NB Valve Body leaving on transport.