Forging changes the shape of metal by pressure or impact without removing chips. In the LUNA catalog these are two different worlds. The first is industrial closed-die hot forging: TRtech CHU hydraulic hammers with blow energies from 16 to 200 kJ forge parts from heated stock in a closed die. The second is forging of small and decorative work: Spain’s NARGESA makes forges, a pneumatic hammer, a press and machines for blacksmith shops and makers of gates, fences and railings.

Three groups of equipment

Type	What it does	In the catalog
Forging hammers	strike the heated stock: CHU hydraulic hammers in a die for batches of forgings, the PH50 pneumatic hammer for hand forging	TRtech CHU-160 – CHU-2000, NARGESA PH50
Hot forging equipment	heats the stock and shapes it by pressure or on a bar-end machine	NARGESA H1, H2 and H3 gas forges, the PV21 press, the NF70 and PC16 machines
Cold forging machines	twist, bend and emboss bar, flat and tube without heating	NARGESA MT150A, MT500A CNC, NOA60

Hammer or press

A hammer delivers its energy in a short blow: the metal fills the die in a few blows, and for batches of forgings that is often the fastest way. A press pushes slowly and evenly, without impact: the metal deforms through its whole depth and the foundation takes no shock load. A small-stock workshop is well served by a hydraulic press such as the 21 t NARGESA PV21; batches of die forgings call for a hammer.

What to compare

Blow energy and ram weight. These are the hammer’s main figures: 16 to 200 kJ and a 1250 to 13,500 kg ram on the CHU. They determine which forging the hammer will fill in the die. The pneumatic PH50 has a 50 kg falling weight and 240 blows per minute.
Foundation. A CHU hammer weighs 32.5 to 326 t and transmits the blow into the floor, so the foundation is designed together with the hammer and the die.
Stock size. For forges it is the chamber and the largest diameter: up to Ø80 mm in the H1–H3, with chambers 140 to 464 mm wide. For cold forging it is the square bar, flat and tube: the MT500A CNC twists square bar up to 40 mm, the NOA60 embosses tube up to 60×60 mm.
Gas and air. NARGESA forges run on propane: 0.35–1 kg per hour at 1 bar depending on the number of burners. The PH50 pneumatic hammer needs no separate air supply — its compressor is built in.

Common mistakes

Choosing a hammer for a die without calculating the blow energy: an unfilled die is not fixed by more blows.
Installing a hammer without a foundation design: the blows damage the floor and disturb neighbouring machines.
Buying a cold forging machine for thicker stock than its rating: the twisting limit is 20 mm square bar on the MT150A and 40 mm on the MT500A CNC.

Send a drawing of the forging or product, the material, the stock size and the quantity per shift — we will select the hammer, press or machine, the tooling and the foundation and quote delivery and commissioning. For bending tube and profiles to a radius, see profile bending machines; for stamping sheet, presses.

Questions and answers

How does a hydraulic hammer differ from a pneumatic one?

The CHU hydraulic hammer drives its ram hydraulically: 16–200 kJ of blow energy, equipment for batch closed-die hot forging. The PH50 pneumatic hammer strikes with air from its built-in compressor, with a 50 kg falling weight — for hand forging in a workshop.

What is cold forging?

Working bar, flat and tube without heating: twisting square bar, bending scrolls and embossing a relief. This is how decorative elements for fences, gates and railings are made. The metal is not heated, so the limits are lower than in hot forging: square bar up to 20–40 mm depending on the machine.

How much does forging equipment cost?

The price depends on the model, configuration, tooling and foundation, as well as delivery terms, so it is not listed on the site. Send a request and we will prepare a quotation with delivery, commissioning and training.

What should I send for a selection?

A drawing of the forging or product, the material and stock size, the quantity per shift; for a hammer, the forging weight and the die; for a workshop, the operations you need. From this we will select the equipment and tooling.

Not sure which model fits?

Send your part parameters — we'll select and quote.

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