A hammer shapes heated stock by impact. This section has two different classes. The TRtech CHU are hydraulic hammers for closed-die hot forging: 12 models with blow energies from 16 kJ on the CHU-160 to 200 kJ on the CHU-2000, rams from 1250 to 13,500 kg and 63–95 blows per minute. They go into forging shops for batches of forgings in a closed die.

For hand forging in a workshop there is the NARGESA PH50: a pneumatic hammer with a 50 kg falling weight, 240 blows per minute, a 180 mm ram stroke, stock up to Ø70 mm or 60×60 mm square. The compressor is built in, so no separate air supply is needed.

A CHU hammer is selected together with the die and the foundation: the blow energy decides which forging it will fill, and the hammer’s weight — 32.5 to 326 t — decides the foundation. Gas forges heat the stock, and the general selection criteria are on the forging equipment.

Forging hammers in the catalog

Model	Blow energy	Ram weight	Blows per minute	Stroke	Hammer weight
NARGESA PH50	—	—	240	—	1 002 kg
TRtech CHU-160	16 kJ	1 250 kg	95	640 mm	32 500 kg
TRtech CHU-200	20 kJ	1 500 kg	80	700 mm	37 000 kg
TRtech CHU-250	25 kJ	1 900 kg	80	700 mm	50 000 kg
TRtech CHU-315	31.5 kJ	2 350 kg	80	700 mm	56 000 kg
TRtech CHU-400	40 kJ	2 750 kg	80	720 mm	69 500 kg
TRtech CHU-500	50 kJ	3 250 kg	80	740 mm	88 000 kg
TRtech CHU-630	63 kJ	4 350 kg	80	770 mm	108 000 kg
TRtech CHU-800	80 kJ	5 600 kg	77	810 mm	136 000 kg
TRtech CHU-1000	100 kJ	7 200 kg	75	860 mm	168 000 kg
TRtech CHU-1250	125 kJ	8 800 kg	68	940 mm	218 000 kg
TRtech CHU-1600	160 kJ	11 000 kg	68	960 mm	247 000 kg
TRtech CHU-2000	200 kJ	13 500 kg	63	980 mm	326 000 kg

Questions and answers

How is the CHU blow energy selected?

From the forging and the die: the forging’s weight and area, the material and the temperature. The CHU range runs from 16 to 200 kJ; we calculate the specific model for your die together with the foundation.

Not sure which model fits?

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

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