Type：
1，Interlocking kelly bar.
2，Friction kelly bar.
3，Full locking kelly bar.
4，Combined kelly bar.
Factory View：
Advantages：
1，Top quality of steel tube, welding wire, drive key and kelly stub etc. ST52, 35Crmo, Hardox500, forged technology are making reliable Kelly bar.
2，Special heat treatment, robot welding machine, leveling adjustment platform are making high strength Kelly bar.
3，Rich experiences, perfect design and customized services will making the suitable kelly bar for you.
4，Online and site Services.
Features：
1，Kelly box 130mm/150mm/200mm/250mm customized.
2，Cutting ring with staggered arrangement of roller bits.
3，Easy replacement of roller bits.
4，Around wearing strips.
Production Process：
Parameters：
We made many interlocking kelly bars for Casagrande B125, B170, B250 Bauer BG15, BG18, BG20, BG24, BG26, BG28, BG30, BG36, BG40; Lienherr LB18, LB24,LB36, LB44; Mait HR180, HR260; Sany SR220, SR250, SR280, SR360; XCMG XR180, XR220, XR360 etc.
OD（mm）
Elements
LockingType
Section Length
Drill Depth
Torque
355
3/4
Interlocking
10-15
24-50
100-120
368
3/4
Interlocking
10-15
24-52
150-180
377
3/4
Interlocking
10-15
24-52
150-180
394
3/4
Interlocking
10-17
24-60
180-200
406
3/4
Interlocking
10-17
24-60
180-200
419
3/4
Interlocking
10-20
24-70
200-230
440/445
3/4
Interlocking
10-20
24-70
220-260
470/482
3/4
Interlocking
10-20
24-70
220-260
508
3/4/5
Interlocking
10-22
32-90
260-360
530
3/4/5
Interlocking
10-22
32-100
320-400
559
3/4/5
Interlocking
10-25
32-115
320-400
580
3/4/5
Interlocking
10-25
32-115
360-420
630
3/4/5
Interlocking
10-25
32-115
400-500
Other sizes can be customized
Kelly bar details:
Kelly bar spare parts：
Packing and delivery：
Name: Leaddrill
Mobile：+8615111295229
Tel：+8615111295229
Whatsapp：15111295229
Email：info@leaddrill.com
Add：1001 Yingshuang Rd. Yuelu District, Changsha, Hunan, China
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