SMJ-Seals (Rod packings)

Standard Material: PTFE(PT154)

Profiles (Left section)

SMJ-2
en_SMJ-1 en_SMJ-2

Service range

Standard Material
Material codes Pressure MPa {kgf/㎠} Max. speed
(m/s)
Temperature range
(℃)
PTFE(PT154) SMJ-Seals Clearance of extrusion Diameter 0.6mm 21 {210} 3 ー30~100
SMJ-Seals Clearance of extrusion Diameter 0.3mm 35 {350}

Characteristics

SMJ-Seals are combined rod seals of S-FLON (PTFE) seals & rubber O-rings providing high sealing and durability performance.
By their special profile design, SMJ-Seals provide excellent sealing performance both at high and low operation speeds (stick-slip free feature).

Remarks

  • ●Packings should be installed in the direction specified on the above schematic.
  • ●Consider adopting split grooves if one-piece groove is technically adverse.
  • ●For applications with rod diameter φ30 and smaller sizes, split grooves are recommended or a smooth installation.
  • Note: The selection of packing & wiper for a combination with SMJ-Seals is important.
    Operating conditions should carefully be examined: high speed, ultra low speed, high pressure, special movement and/or density of dust in operating area.
    Sakagami provides sealing solutions fulfilling these requirements.
  • ※JIS standard sequence of surface roughness symbols refer to HERE.

Dimension table

Packings & Groove dimensions (Unit:mm) Part No.
d D H G Maximum d1 Standard material(PT154)
(21MPa and below) (35MPa and below)
12 19.3 3 3.2 12.6 12.3 1.5 SMJ-12
18 25.3 3 3.2 18.6 18.3 1.5 SMJ-18
20 30.7 4 4.2 20.6 20.3 2 SMJ-20
22 32.7 4 4.2 22.6 22.3 2 SMJ-22
25 35.7 4 4.2 25.6 25.3 2 SMJ-25
28 38.7 4 4.2 28.6 28.3 2 SMJ-28
30 40.7 4 4.2 30.6 30.3 2 SMJ-30
35 45.7 4 4.2 35.6 35.3 2 SMJ-35
36 46.7 4 4.2 36.6 36.3 2 SMJ-36
40 55.1 6 6.3 40.6 40.3 3 SMJ-40
45 60.1 6 6.3 45.6 45.3 3 SMJ-45
50 65.1 6 6.3 50.6 50.3 3 SMJ-50
55 70.1 6 6.3 55.6 55.3 3 SMJ-55
56 71.1 6 6.3 56.6 56.3 3 SMJ-56
60 75.1 6 6.3 60.6 60.3 3 SMJ-60
65 80.1 6 6.3 65.6 65.3 3 SMJ-65
70 85.1 6 6.3 70.6 70.3 3 SMJ-70
75 90.1 6 6.3 75.6 75.3 3 SMJ-75
80 95.1 6 6.3 80.6 80.3 3 SMJ-80
85 100.1 6 6.3 85.6 85.3 3 SMJ-85
90 105.1 6 6.3 90.6 90.3 3 SMJ-90
100 115.1 6 6.3 100.6 100.3 3 SMJ-100
125 140.1 6 6.3 125.6 125.3 3 SMJ-125
140 155.1 6 6.3 140.6 140.3 3 SMJ-140
  • ★Orders and inquiries are acceptable by part numbers. Part numbers marked ※ have been changed each part numbers. Please check HERE for the previous part number.
  • ★Part numbers in blue letters are the products in stock.
  • ★Packings with the part numbers in light Italic require the confirmation of their availability prior to ordering. These items are subject to the abolishment without notice. Reclamation of an abolished product requires producing the new tooling at your expense.
  • ★ST-Seals are made-to-order products. ST-Seals for inner slide rods and other shapes are available upon request.
  • ★Packings are adequately packaged for the optimum storage. Refer to Cautions for the handling and
  • ★Performance and material tests on packing and seals are also available. Please contact us for more information.