Products Description
K842 rod wiper seals
Advantages:
● Compatible with HFA (95/5) high water-based working fluid and mineral oil used in long-arm mining equipment
● Excellent resistance to permanent deformation

Kintowe K842 rod wiper seals are designed to prevent the ingress of external particles and moisture into the cylinder. The profile has been specially developed for harsh environments, in particular the longwall mining industry.
The special feature is the flap on wiping which covers the gland housing, preventing the water/slurry trap so common with conventional wipers and thus ingress of contamination around the outside of the wiper. The internal ribs on the inside diameter prevent the possibility of pressure trapping between the gland seal and the wiper and ensure correct support and guidance of the wiping lip, even in cases of high eccentricity as can occur between the outer stage gland and the inner cylinder of a roof support leg.
The K842 rod wiper seals are an excellent choice for those looking for high-quality seals that can withstand demanding conditions. Made from high-performance polyurethane-KINTOWE®01, these seals have exceptional compression set characteristics and superior wear and abrasive resistance.
One of the most significant benefits of these seals is their compatibility with HFA(95/5) fluids, which are typically used in longwall mining equipment, as well as mineral oils. This compatibility makes them ideal for use in a variety of industrial applications, where they can provide excellent sealing performance and protect equipment from wear and damage.
When it comes to choosing seals for your equipment, it's crucial to select products that offer proven reliability and durability - and that's precisely what you get with K842 rod wiper seals. So if you're looking for seals that can stand up to the toughest conditions and deliver top-quality performance, these seals are an excellent choice.
Production process:


Technical details
| Operating conditions | Metric | Inch |
| Maximum speed |
4.0 m/sec |
12.0 ft/sec |
| Temperature range |
-45℃+110℃ |
-50°F +230°F |
| Surface roughness | μmRa | μmRt | μinCLA | μinRMS |
| Dynamic sealing face øD1 | 0.1<>0.4 | 4 max | 4<>16 | 5<>18 |
| Static sealing face ød1 | 1.6 max | 10 max | 63 max | 70 max |
| Static housing faces L1 | 3.2 max | 16 max | 125 max | 140 max |
| Radii | ||||
| Rod Diameter ød1 mm | ≤50 | ≤90 | ≤200 | >200 |
| Max Fillet Rad r1 mm | 0.4 | 0.4 | 0.4 | 0.8 |
| Max Fillet Rad r2 mm | 0.2 | 0.4 | 0.6 | 0.8 |
| Rod Diameter ød1 | ≤2.000 | ≤3.500 | ≤7.875 | ≤7.875 |
| Max Fillet Rad r1 in | 0.016 | 0.016 | 0.016 | 0.032 |
| Max Fillet Rad r2 in | 0.008 | 0.016 | 0.024 | 0.032 |
|
Tolerances |
ød1 |
øD1 |
ØD2 |
L1 mm |
h |
|
mm |
f9 |
H11 |
H11 |
+0.2 -0 |
+0.10 +0 |
|
in |
f9 |
H11 |
H11 |
+0.008 -0 |
+0.004 +0 |


|
Фd1 |
ФD1 |
ФD2 |
L1 |
L2 |
h |
PART No. |
|
32 |
40 |
37.5 |
5.0 |
8.0 |
1.50 |
8420320 |
|
35 |
45 |
42.0 |
6.3 |
10.0 |
1.50 |
8420350 |
|
36 |
44 |
41.5 |
5.0 |
8.0 |
1.50 |
8420360 |
|
38 |
46 |
43.0 |
5.3 |
8.0 |
1.50 |
8420380 |
|
40 |
48 |
45.5 |
5.0 |
8.0 |
1.50 |
8420400 |
|
45 |
53 |
50.5 |
5.0 |
8.0 |
1.50 |
8420450 |
|
50 |
58 |
55.5 |
5.0 |
8.0 |
1.50 |
8420500 |
|
55 |
65 |
62.0 |
6.3 |
10.0 |
1.50 |
8420550 |
|
60 |
70 |
67.0 |
6.3 |
10.0 |
1.50 |
8420600 |
|
60 |
72 |
67.0 |
4.1 |
10.0 |
2.50 |
8420601 |
|
63 |
73 |
70.0 |
6.3 |
10.0 |
1.50 |
8420630 |
|
70 |
82.6 |
78.4 |
8.0 |
12.0 |
2.00 |
8420700 |
|
70 |
85 |
78.0 |
5.1 |
12.0 |
3.00 |
8420701 |
|
75 |
90 |
83.0 |
5.1 |
12.0 |
3.00 |
8420750 |
|
80 |
90 |
87.0 |
6.3 |
10.0 |
1.50 |
8420800 |
|
80 |
95 |
88.0 |
5.1 |
12.0 |
3.00 |
8420801 |
|
85 |
97.6 |
93.4 |
8.0 |
12.0 |
2.00 |
8420850 |
|
85 |
100 |
93.0 |
5.1 |
10.0 |
3.00 |
8420851 |
|
90 |
102.6 |
98.4 |
8.0 |
12.0 |
2.00 |
8420900 |
|
90 |
105 |
98.0 |
5.1 |
10.0 |
3.00 |
8420901 |
|
95 |
110 |
105.0 |
9.5 |
14.0 |
2.80 |
8420950 |
|
100 |
112.2 |
106.0 |
7.1 |
12.4 |
2.80 |
8421000 |
|
100 |
114 |
109.9 |
8.0 |
12.0 |
1.50 |
8421001 |
|
100 |
115 |
108.0 |
5.1 |
12.0 |
3.00 |
8421002 |
|
Фd1 |
ФD1 |
ФD2 |
L1 |
L2 |
h |
PART No. |
|
100 |
115 |
110.0 |
9.5 |
14.0 |
2.00 |
8421003 |
|
105 |
120 |
115.0 |
9.5 |
14.0 |
2.00 |
8421050 |
|
110 |
125 |
118.0 |
5.1 |
12.0 |
3.00 |
8421100 |
|
110 |
125 |
120.0 |
9.5 |
14.0 |
2.00 |
8421101 |
|
120 |
135 |
130.0 |
9.5 |
14.0 |
2.00 |
8421200 |
|
125 |
137.2 |
131.0 |
7.6 |
12.9 |
2.80 |
8421250 |
|
125 |
140 |
133.0 |
5.1 |
12.0 |
3.00 |
8421251 |
|
125 |
140 |
135.0 |
9.5 |
14.0 |
2.00 |
8421252 |
|
130 |
145 |
140.0 |
9.5 |
14.0 |
2.25 |
8421300 |
|
140 |
152.2 |
146.0 |
7.6 |
12.9 |
2.80 |
8421400 |
|
140 |
155 |
150.0 |
9.5 |
14.0 |
2.00 |
8421401 |
|
145 |
160 |
155.0 |
9.5 |
14.0 |
2.00 |
8421450 |
|
150 |
169 |
159.0 |
6.1 |
14.0 |
4.00 |
8421500 |
|
155 |
170 |
165.0 |
9.5 |
12.0 |
2.25 |
8421550 |
|
170 |
189 |
179.0 |
6.1 |
14.0 |
4.00 |
8421700 |
|
175 |
190 |
185.0 |
9.5 |
14.0 |
2.25 |
8421750 |
|
180 |
195 |
190.0 |
9.5 |
14.0 |
2.25 |
8421800 |
|
190 |
209 |
199.0 |
6.1 |
14.0 |
4.00 |
8421900 |
|
200 |
223 |
211.0 |
8.3 |
20.0 |
4.80 |
8422000 |
|
215 |
230 |
225.0 |
9.5 |
14.0 |
2.00 |
8422150 |
|
230 |
250 |
240.0 |
10.2 |
18.0 |
3.80 |
8422300 |
|
250 |
270 |
260.0 |
10.2 |
18.0 |
3.80 |
8422500 |
|
320 |
340 |
330.0 |
10.2 |
18.0 |
3.80 |
8423200 |
|
350 |
370 |
360.0 |
10.2 |
18.0 |
3.80 |
8423500 |
Our exhibition
PTC, BAUMA, Hannover Messe etc.

By Express (FedEx, UPS, DHL, TNT, EMS, etc. )
--- Advantage: Fast (takes about 7 - 10 days in the delivery), door to door
This is especially useful for urgent shipments that need to reach their destination quickly. Though express delivery is a little expensive, it is worth the cost if time is a crucial factor.

By Air Transportation
--- Advantage: Fast (takes about 8 - 12 days), a little cheaper than Express.
Though it takes a little longer than express delivery, at around 8-12 days, it is still relatively quick. Additionally, air transportation is a little cheaper than express delivery. The only downside is that the receiver has to collect the goods from the airport.

By Sea (Ocean ) Transportation
--- Advantage: Much cheaper than Express or Air transportation.
Sea transportation is an excellent option for individuals and businesses that need to transport goods across long distances. With its cost savings and global coverage, it's an attractive alternative to other transportation methods.

FAQ:
Q: Where is your factory located?
Q: How is your price level?
Q: How you arrange shipment?
Q: What kinds of material you can produce?
Polyester resin fabric composites
Epoxy resin wound bearings
Filled PTFE hydraulic seals
Polyurethane rod / piston seals
Q: What is the delivery time for mass production?
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