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Slotted Casing

Standard

API 5CT

Grade

J55,K55,N80,L80,P110 etc.

Outside Diameter

2 3/8” - 20”(60.3mm-508mm)

Thickness

Less than 16mm

Slot length

As per customer' s requirement

Slot width

0.1-4mm( ± 0.03mm)

Slot space

As per customer’s requirement

Distrubution types of slots

straight in line pattern, staggered pattern, spiral pattern

Slotted casings are widely used for oil filters, they can filter out 99% of the sand, which greatly reduces the maintenance rate of the tube, and also improve the tube’s strength, integrality and stability of keeping off the sand.The slotted casings are produced using laser cutting technology, the slot is with high precision, good edge verticality, trimming smooth without glitches and etc.
Meanwhile, the laser incision can make very small cuts with smooth surface and high precision. Although its structure is simple, it is very effective. It has small cuts of 0.1-0.5mm in the tube wall.

Slotted CasingSlot Pattern

API Casing

ID mm

Length m

Slot Length mm

Slot No.No./m

Slot width mm

Slot Tolerance

Valid Filter Area cm/m

Max. Strength KN

Spec mm

Thickness mm

Per Weight kg/m

60.32

5

6.84

50.3

3

80

200

0.3

±50

48

512.54

73.02

5.5

9.15

62

240

57.6

688.55

88.9

6.5

13.22

75.9

280

67.2

995.1

101.6

6.5

15.22

88.6

300

72

1151.2

114.3

7

18.47

100.3

10

320

76.8

1400.4

127

7.52

22.13

112

340

81.6

1673.8

139.7

7.72

25.11

124.3

360

86.4

1900.2

9.17

29.48

121.4

360

86.4

2232.4

168.3

8.94

35.09

150.4

400

96

2672.95

177.8

8.05

33.68

161.7

440

105.6

2559.2

9.19

38.19

159.4

440

105.6

2940.7