Model

ZJ30DBS

ZJ40DBS

ZJ50DBS

ZJ70DBS

ZJ90DBS

Nominal depth
m (ft)

114mm(4 1/2 in.) DP

1600~3000
(5250~9850)

2500~4000
(8200~13200)

3500~5000
(11500~16400)

4500~7000
(14800~23000)

6000~9000
(19700~30000)

127mm  (5 in.) DP

1500~2500
(4920~8200)

2000~3200
(6600~10500)

2800~4500
(9200~14800)

4000~6000
(13100~19700)

5000~8000
(16400~26250)

Max. load of drilling string
KN (kips)

1700 (382)

2250 (496)

3150 (695)

4500 (992)

6750(1518)

Max. line number strung

5×6

5×6

6×7

6×7

7×8

Dia. of drilling line  mm (in)

29 (1   1/8)

32 (1  1/4)

35 (1   3/8)

38 (1   1/2)

42 (1   3/4)

Dia of traveling sheave mm (in)

1005 (40)

1120 (44)

1270 (50)

1524 (60)

1524 (60)

Center pipe dia. of swivel mm (in)

75 (3)

75 (3)

75 (3)

75 (3)

75 (3)

Rated input power of DW kW (hp)

550 (750)

735(1000)

1000(1340)

1470 (2000)

2210(3000)

Shifting number of DW

Stepless change

Stepless change

Stepless change

Stepless change

Stepless change

Type of main brake

Disk/Band

Disk/Band

Disk/Band

Disk/Band

Disk/Band

Type of auxiliary brake

E.T. N ddy/Eaton

E.T. N  dy/Eaton

E.T. N  Eddy/Eaton

E.T. N Eddy/Eaton

E.T. N Eddy/Eaton

Opening of RT  mm (in)

520.7 (20  1/2)

698.5 (27   1/2)

698.5 (27 1/2)

952.5 (371/2)

952.5 (37  1/2)

1257.3 (49  1/2)

Shifting number of RT

 2 Step less change

2 Step less change

2 Step less change

2 Step less change

2 Step less change

2 Step less change

Power per MP  kW (hp)

735 (1000)

956 (1300)

956 (1300)

1180 (1600)

1180 (1600)

1640 (2200)

Number of MP

1

2

2

2, 3

3

Mast effective height  m (ft)

41 (134)

43 (142)

45 (147)

45 (147)

46 (152)

Drill floor height  m (ft)

6 (19.7),

7.5 (25)

9 (30), 10.5 (35)

9 (30), 10.5 (35)

12 (40)

Drill floor clearance  m (ft)

4.7 (15.6),

6.26 (20.5)

7.62 (25), 9.12 (30)

7.62 (25), 9.12 (30)

10(33.33)

Noted-- AC VF drive Drilling Rig