Mining subs and pin to pin bit sub

Subs, Adaptors & Bushings

Tube Technologies manufactures all types of subs and adapters for Blast Hole Drilling. The subs and adaptors are made from 4142 heat-treated alloys which are then hardened to 32 – 36. Rockwell provides maximum strength as subs are hardened to 32-36. Rockwell C is substantially stronger than the traditional commercial bar stock. Our extensive array of thread gages allows you to have complete and prompt customization of any sub adapter and all BECO and API thread connections are part of our range.

Made from 4142 heat-treated alloys which is then hardened to 32 – 36. Rockwell provides maximum strength as subs are hardened to 32-36.  Rockwell C is substantially stronger than the traditional commercial bar stock.

Pin ConnectionOutside DiameterStandard LengthSub WtPart Number
2 3/8 API Reg3 ½184535700
2 3/8 API Reg.4186035701
2 7/8 IF4 1/2187035702
3½ API Reg.4 1/2249735703
3 ½ API Reg52412235704
3 ½ Beco52411735705
3 ½ Beco5 ½2414535706
4 – 4 ½ Beco6 1/42417635707
4 – 4 ½ Beco6 ½2419435708
4 ½ Beco72423035709
5 ¼ Beco7 ½1827035710
5 ¼ Beco7 5/81834435711
6 Beco8 5/81843435712
6 Beco9 1/42453135713
7 Beco9 5/82462835714
8 Beco10 3/42474335715
8 Beco12 1/424121535716
10 Beco12 3/424130835717
10 Beco13 3/824146235718

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