Construction Machinery Parts

This is one of our long-established product families. Construction machinery parts are bought for weight, fit and durability: a counterweight has to hit its mass, an arm casting has to be sound in the bored bosses, and a frame has to stay flat after welding.

We cast them in HT200–HT300 and in ductile iron where impact resistance matters, with lifting lugs and mounting bosses formed in the casting. Larger pieces are weighed individually against the drawing and marked where required.

Construction machinery counterweights
Tower-crane hook counterweights
Excavator and loader ballast
Arc-shaped counterweights with lifting lugs
Wedge-shaped counterweight blocks

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Counterweights and ballast

Arc-shaped and wedge-shaped counterweights with lifting lugs, large yellow-painted counterweights with mounting bosses, and HT200 blocks cast with the FAMED mark and a serial number.

Weight control on large ballast

Pieces are stored in rows and weighed one by one; the cast-in weight marking is checked against the certificate.

Arms, brackets and frames

Finish-machined arm and seat castings with bored bosses and faced flanges, yellow-painted symmetrical supports, and large frame and base castings.

Travel-drive and gearbox housings

Reducer housings with several flange ends and machined bores, cast in grey iron and finished in-house.

Typical parts

Construction machinery counterweights
Tower-crane hook counterweights
Excavator and loader ballast
Arc-shaped counterweights with lifting lugs
Wedge-shaped counterweight blocks
Arms, brackets and symmetrical supports
Machine frames and base castings
Travel-drive and reducer housings

Specifications

Materials: Grey iron HT200 / HT250 / HT300; ductile iron QT450-10 where impact resistance is required
Unit weight: From a few kilograms up to 2.5 t
Casting process: Lost-foam moulding; lifting lugs and mounting bosses formed in the casting
Weight control: Every piece weighed against the drawing; weight marked on the part where required
Machining: Boring, face milling, drilling and tapping on mounting and pivot faces
Finish: Shot blasting, then yellow, silver-grey or red-oxide primer / top coat
Minimum order: 5 – 10 pieces for large counterweights, 50 pieces for small blocks