What does the designation of C41 mean? Is this simply the frame has a "C" shape? I believe that the second number in the sequence designates the ram weight in kg.

Context? Any manufacturer can use that for anything they want: eg:"C-41 is a chromogenic color print film developing process"

I think he's talking about Anyang hammers

I figured it was about some sort of hammer but didn't know the exact maker.

Anyang and other hammer manufacturers that I know of. For example http://www.sxqd.cn/En_Product.asp has hammers with similar designations. I reckon it must be some kind of designation for self contained, but I am not sure.

Ive see references on some of the very old Massey drawings where the 'Clear Space' hammers have 'C41' as the type. Might be some old commodity code before the new harmonised standard codes came in ?

Edit to the above post, Ive just cheked some drawings for the Massey clear space hammers, and they were model number 'CS31' - so prolly just a coincidence!

If its an Anyang that is being discussed, C41 is the model and weight designation of the tup in kilograms.

Nope Kevan, the weight in kg is the next number, C41-9, C41-15, C41-25, C41-... 40, 55, 75, 150, 250, 400, 560, 750, 1000 and the last one C41-2000 with 2000kg of tup ;)

As I recall reading somewhere, they are clones of a defunct company's product, simply scaled up or down. No patent protection, so everyone builds their own line.

http://www.sxqd.cn/En_Product.asp?EnBigClassName=C41-AIR%20HAMMER%20series

http://www.chinesehammers.com/EngLish/channels/92.html

I know of at least half a dozen factories in China making 'C41' series hammers.

Again, I am speculating, but I think it might stem back to the more communist days of China, before free trade and competition was encouraged. The Chinese ministry of machine building could well have just said 'your a hammer factory' 'your a hammer factory' etc etc, and they all worked to the same information.

The 'C41' hammers I have seen from various different factories in China are obviously closely related !

Nope Kevan, the weight in kg is the next number, C41-9, C41-15, C41-25, C41-... 40, 55, 75, 150, 250, 400, 560, 750, 1000 and the last one C41-2000 with 2000kg of tup

Yes, you are quite correct. I have just checked my bill of lading for my machine and it is indeed a C41-40, 40 being the tup weight in kgs. Thank you and regards, Kevan......and by the way, it is a fantastic hammer even if a bit oily.

IIRC C-41 is the Chinese govt. designation for that type of hammer. Think I read somewhere it is based on a Russian design that was based on the German Beche hammer.

For sure Kevan a fantastic hammer, I've played with a C41-40 at a hammerin' and nearly fell in love :wub: