Chitoliro cha Rock Drill

Kufotokozera Kwachidule:

DTH kubowola ndodo/bowola chitoliro kuthamanga kwambiri pakukumba, kubowola madzi, migodi

Uthenga Imelo

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Mapaipi obowola omwe amagwiritsidwa ntchito ngati DTH/DTHR/DR kwenikweni amakhala ndi chitoliro chachitsulo chokhala ndi pini kumapeto kwina ndi bokosi mbali inayo.Ntchito ya chitoliro chobowola ndikutumiza torque yozungulira ndikukantha kuchokera kumutu wobowola kupita ku zida zoboola pansi.

Malinga ndi kugwiritsa ntchito mosiyanasiyana, ma diameter osiyanasiyana amachubu obowola amafunikira, makamaka, nyundo zazing'ono za DTH zimafunikira machubu a DTH ang'onoang'ono, mosemphanitsa.Nthawi zambiri timapereka 50mm, 60mm, 76mm, 89mm, 95mm, 102mm, 114mm, 127mm, 140mm, 159mm.

Nthawi zambiri ulusi umakhala wolumikizana ndi API, monga 2 3/8″ API REG ulusi, 3 1/2 ″ ulusi wa API REG kapena ulusi wa API IF, ndi zina.
Malinga ndi pempho makasitomala, kuchokera 1000mm kuti 6000mm kutalika chitoliro zilipo.

Kukula		Unyinji wadzina Lb/ft	Mawerengedwe kulemera mtundu		Khoma makulidwe
mu.	mm	Unyinji wadzina Lb/ft	lb/ft	kg/m	mu.	mm
2 3/8	60.3	6.65	6.26	9.32	0.28	7.11
2 7/8	73	10.4	9.72	14.48	0.362	9.19
3 1/2	88.9	9.5	8.81	13.12	0.254	6.45
3 1/2	88.9	13.3	12.31	18.34	0.368	9.35
3 1/2	88.9	15.5	14.63	21.79	0.449	11.4
3 1/2	88.9	15.5	14.63	21.79	0.449	11.4
4	101.6	14	12.93	19.26	0.33	8.38
4 1/2	114.3	13.75	12.24	18.23	0.271	6.88
4 1/2	114.3	16.6	14.98	22.31	0.337	8.56
4 1/2	114.3	20	18.69	27.84	0.43	10.92
5	127	16.25	14.87	22.15	0.296	7.52
5	127	19.5	17.93	26.71	0.362	9.19
5	127	19.5	17.93	26.71	0.362	9.19
5	127	25.6	24.03	35.79	0.5	12.7
5	127	25.6	24.03	35.79	0.5	12.7
5 1/2	139.7	21.90	19.81	29.51	0.361	9.17
5 1/2	139.7	24.70	22.54	33.57	0.415	10.54