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K35 is a two piece single acting rod seal which consists of one special mixture PTFE profile ring and an o-ring as energizing element.

PRODUCT ADVANTAGES
• Low friction , free of stick-slip
• Due to the special profile it can be used in pair or in front of the u-ring .
• Long service life
• High sliding speed
• Wide range of temperature and chemicals depending on the o-ring material
• Minimum static and dynamic friction coefficient for a minimum energy loss and operating temperature
• Simple groove design and low axial housing heights

APPLICATION
Injection moulding machines , fork-lift trucks , loading platforms , cranes , agricultural machinery , hydraulic breakers and servo cylinders.

MATERIAL   CODE
NBR 70 SHORE A NB7001
PTFE   PT6003
OPERATING CONDITIONS
MEDIA Mineral oils (DIN 51524)  HFA ve HFB HFC
TEMPERATURE -30°C +105°C +5°C +60°C -30°C +60°C
PRESSURE ≤400 Bar ≤400 Bar ≤400 Bar
SPEED ≤5.0 m/sn ≤5.0 m/sn ≤5.0 m/sn
Note: The above data are maximum values and cannot be used at the same time.
    
SURFACE ROUGHNESS Ra Rmax
Sliding Surface Ød ≤0.2 μm ≤2.0 μm
Groove Base ØD ≤1.6 μm ≤6.3 μm
Groove Flanks B ≤3.2 μm ≤15 μm
Note: It is recommended to have 50% to 90% of the working surface material contact area value.

 

INSTALLATION
We recommend using special assembly tool (See section; Hydraulic Sealing Elements General Installation Information). It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation the sealing element must be oiled with system oil.

 

NOTES
K35 type of rod seal can be also used with double lip wipers. For special applications that require high temperatures or resistance to chemicals , piston seal is being manufactured with special mixture PTFE and FKM material. For heavy duty applications and high pressures the tolerances should change to H8/f8 and please contact the customer service to choose the suitable sealing element. The permissible sealing gap values of K35 rod seal is given in the below table.

PERMISSIBLE SEALING GAP
B (mm) Smax (mm)
x   150 Bar  250 Bar  400 Bar
2.2 0.25 0.15  0.10
3.2  0.35 0.20  0.10
4.2 0.35 0.20  0.15
6.3  0.45 0.30  0.20
8.1  0.6 0.35  0.25
9.5  0.7 0.50  0.30

Note: The largest sealing gap value occurring on the non-pressurized side of the seal does have a vital importance for the function of the seal and in this respect it is quite important to use the S value lower than the above indicated numbers.

More Information
น้ำหนัก/หน่วย (กก.)0.1000
Application หรือ MEDIA ที่เหมาะกับการใช้งานใช้งานInjection moulding machines , fork-lift trucks , loading platforms , cranes , agricultural machinery , hydraulic breakers and servo cylinders.
Temperature Range Min °C-30
Temperature Range Max °C105
Max Pressure400 bar
หน่วยวัดmm
แบรนด์Kastas
I.D. เส้นผ่านศูนย์กลางวงใน22
OD เส้นผ่านศูนย์กลางวงนอก(มม)22
THK ความหนา3.2
TypeK35 ROD-SEAL
Part NOK35-022/2
วัสดุ(Material)NBR
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SKU
HS-RS-1451
฿125.00

K35 ROD SEAL 22X29.3X3.2

  

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