Hallite 820

Hallite 820
High Performance Rod Wiper
www.hallite.com
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Designed with the same look and feel as Hallite’s popular T842 and engineered to fit the same ‘D’ groove
as our T520 wiper, the T820 wiper was developed specifically for harsher environments where the
wiper is subject to numerous contaminants. This is common in agriculture, off-highway and forestry
equipment.
What makes the T820 unique is the protective debris
guard, which entirely covers the retaining groove. This
feature, known as Hallite’s Umbrella Wiper Technology, offers added protection
to the integrity of the hydraulic system. Often with a normal ‘D’ style wiper, it is
possible to trap liquids or debris in the wiper cavity or pocket around the O.D.
of the wiper. This can eventually corrode the pocket or pass debris around the
wiper, contaminating the entire system and resulting in downtime, as well as
repair and warranty costs.
Another advantage of the T820 is the ease of installation. Unlike metal
press-in wipers normally specified for harsh environments, the T820 can be
installed without the use of special tooling.
The T820 also incorporates the performance I.D. ribs found on the T520 to enhance low friction operation, as well as prevent
pressure trap between the wiper and the primary rod seal.
The standard material offering is the same hydrolysis-resistant Hythane® 181 polyurethane as other Hallite high performance
seals. This material has excellent low temperature capabilities and compression set characteristics, along with excellent
wear and abrasive resistance, and proven performance with a variety of fluids. The T820 is also offered in a number of other
polyurethanes such as the Hythane® 361 and Hythane® 371, a very aggressive scraping material with a proven track record in
forestry, mining and aggregate industries.
T520
Traditional ‘D’ Profile
Features
Benefits
Umbrella Wiper
• Prevents traditional ingress of moisture and slurry
Technology
• Eliminates corrosion in wiper and gland housing
• Sheets water and debris away from rod and housing
ID Ribbing
• Adds stability to the wiper
• Prevents pressure trapping
• Reduces friction
Materials
• Premium seal materials
• Water, UV and chemical resistant
• Offers long life and sealability
T820
Issue Date: February 2014
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T820_new_US:OZ Rods a DS D3 2006.qxd
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12:10
Page 25
The standard material offering is the same hydrolysis-resistant Hythane® Polyurethane as other Hallite performance seals. This material
has excellent compression set characteristics, excellent wear, and abrasive resistance, and proven performance with a vast variety of
fluids. The T820 is also offered in a number of other polyurethanes such as the Hythane® 361, and Hythane® 371 a very aggressive
scrapping material with proven track record in forestry, mining and aggregate industries.
Other Materials may be available upon special request, please contact your nearest sales office or distributor for details or inquiries.
Fenner Advanced Sealing Technologies
“The Features
Umbrella Wiper Technology entirely
covers the retaining groove and offers added
protection to the integrity of the hydraulic
system.”
h
Design
• Retrofits most ‘D’ wiper
housings
• Interchangeable with Hallite
520 wiper
ØD1 ØD2 Ød1
• Especially effective in
vertically mounted cylinders
12:10
Pagebetween
27 the wiper and the primary rod seal.
The standard material offering is the same hydrolysis-resistant Hythane® Polyurethane as other Hallite performance seals. This material
has excellent compression set characteristics, excellent wear, and abrasive resistance, and proven performance with a vast variety of
fluids. The T820 is also offered in a number of other polyurethanes such as the Hythane® 361, and Hythane® 371 a very aggressive
scrapping material with proven track record in forestry, mining and aggregate industries.
Metric
OtherInch
Materials may be available upon special request, please contact your nearest sales office or distributor for details or inquiries.
Maximum
Fenner Speed
Advanced Sealing Technologies
Temperature Range
4.0 m/sec
-45°C +110°C
Surface roughness
Dynamic Sealing Face Ød1
Static Sealing Face ØD1 ØD2h
Static Housing Faces L1
µmRa
0.1 < > 0.4
1.6 max
3.2 max
Radii
Max Fillet Rad r1 in
Max Fillet Rad r2 in
0.016
0.016
Tolerances
in
Ød1
f9
12.0 ft/sec
Features
-50°F +230°F
h
• Retrofits most ‘D’ wiper
µinCLA
µinRMS
housings
µmRt
4 max
10 max
16 max
h
4 < > 16
5 < > 18
• Interchangeable with Hallite
63
70 max
520max
wiper
125 max
140 max
L1
r1
r2
L1
ØD1 ØD2 Ød1
• Especially effective in
vertically mounted cylinders
• DesignedØD
to prevent
ingress
ØD2 Ød1
1
of contamination
and
moisture into the cylinder
ØD1
±0.003
ØD2
±0.005
L1
+0.004 -0
h
+0.004 -0
Technical details
Operating conditions
Ød1h + ØD2 dimension
TOL
ØD1 by customer
TOL before purchasing.
ØD2 Maximum
TOL
*NOTE*
should be verified
Speed
f9
wipers
Operating conditions
820
Technical details
ØD1 ØD2 Ød1
The T820 incorporates the performance I.D. ribs found on the T520 to enhance low friction operation, as well as prevent pressure trap
11/9/13
+0.003 -0
+0.005 Range
-0
Temperature
1.125
-0.0008
-0.0028
1.500
+0.003
-0.003
1.250
-0.0010
-0.0034
1.625
+0.003
-0.003
1.375
-0.0010
-0.0034
1.750
+0.003
-0.003
1.500
-0.0010
-0.0034
1.875
+0.003
-0.003
1.750
1.750
-0.0010
-0.0034
2.125
+0.003
-0.003
2.000
2.000
-0.0012
-0.0041
2.500
+0.003
-0.003
2.250
-0.0012
-0.0041
2.750
2.500
-0.0012
-0.0041
3.000
Metric
L1
L2
4.0 m/sec
+0.004 -0 -45°C +110°C
1.375 Surface
+0.005
0.187
roughness
Dynamic
Sealing Face Ød1
-0.005
Static Sealing Face ØD1 ØD2h
1.500 Static+0.005
0.187
Housing Faces L1
-0.005
Radii
1.625 Max Fillet
+0.005
0.187
Rad r1 in
-0.005
Max Fillet
Rad r2 in
+0.005
Tolerances
in -0.005
0.187
Inch
h
+0.004 -0
PART
12.0 ft/sec
No.
-50°F +230°F
µmRa 0.281
0.1 < > 0.4
1.6 max
0.281
3.2 max
0.094
µmRt
4 max
10 max
0.094
16 max
4855600
µinCLA
4 < > 16
63 max
4855700
125 max
0.016 0.281
0.016
0.094
4855800
0.281
0.094
ØD1
ØD2
Ød1
f9
±0.003
±0.005
µinRMS
5 < > 18
70 max
140 max
4855900
L1
h
+0.004 -0
+0.004 -0
+0.005
0.187
0.281
0.094
-0.005
*NOTE* h + ØD2 dimension should be verified by customer before purchasing.
2.332
+0.005
0.250
0.375
0.125
-0.005
4856000
+0.003
-0.003
2.582
+0.005
-0.005
0.250
0.375
0.125
4856100
3.000
+0.003
-0.003
2.832
+0.005
-0.005
0.250
0.375
0.125
4856200
-0.0012
-0.0041
3.500
+0.003
-0.003
3.332
+0.005
-0.005
0.250
0.375
0.125
4856300
3.500
-0.0014
-0.0048
4.000
+0.003
-0.003
3.832
+0.005
-0.005
0.250
0.375
0.125
4856400
4.000
-0.0014
-0.0048
4.500
+0.003
-0.003
4.332
+0.005
-0.005
0.250
0.375
0.125
4856500
4.500
-0.0014
-0.0048
5.250
+0.003
-0.003
4.998
+0.005
-0.005
0.375
0.562
0.187
4856600
5.000
-0.0017
-0.0056
5.750
+0.003
-0.003
5.498
+0.005
-0.005
0.375
0.562
0.187
4856700
6.000
-0.0017
-0.0056
6.750
+0.003
-0.003
6.498
+0.005
-0.005
0.375
0.562
0.187
4856800
4837800
wipers - inch
• Designed to prevent ingress
of contamination
and D3 2006.qxd
T820_new_US:OZ
Rods a DS
moisture into the cylinder
L1
Designed with the same look and feel as the popular T842, the T820 wiper is engineered to fit the same ‘D’ groove as our T520 wiper,
common in many North American cylinders. However, this profile was developed specifically for harsher environments than the T520,
r1 is subject to numerous contaminants,
h such
where the wiper
L1 as in Agriculture, Off-Highway, and Forestry equipment.
r2
What makes the T820 unique is the protective debris guard, which entirely covers the retaining groove. This feature offers added
protection to the integrity of the hydraulic system. Often with a normal ‘D’ style wiper, it is possible to trap liquids or debris in the wiper
cavity or pocket around the O.D. of the wiper. This willr1eventually allow it to corrode the pocket or pass debris around the wiper
r2
contaminating the entire system. This results in down time, as well as repair and warranty costs. Another advantage of the T-820 is
that it is easy to install without the use of special tooling as in the case of a metal press-in wiper normally spec’d for harsh
environments.
*NOTE* h + ØD2 dimension should be verified by customer before purchasing.
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Hallite Seals
Hallite produces high performance hydraulic
sealing solutions for the world’s fluid power
industry. The company enjoys an enviable
reputation for high quality and reliability within
the mobile hydraulics, mining, off-highway,
construction,
agriculture,
mechanical
handling and automation markets.
Hallite products, engineered in a wide
variety of advanced materials, are chosen by
leading manufacturers for their exceptional
performance in the most demanding, safetycritical high specification applications.
Hallite operations are located in Australia,
Brazil, Canada, China, France, Germany,
India, Italy, the UK and the USA. All Hallite
locations are committed to providing quality
seals in the shortest possible time. Hallite
combines carefully chosen and managed
stocks in local markets, supported by a fast
track moulding capability. All locations can
now boast a CNC machining cell, branded
Hallite Service, which can provide immediate
delivery for non-standard and breakdown
situations.
Additionally a worldwide network of service
partners completes the global presence and
ensures the full range of Hallite products is
readily accessible.
UNITED STATES
Hallite Seals Americas
50777 Varsity Court
Wixom,
Michigan 48393
T: +1 (248) 668 5200
F: +1 (248) 668 5210
E­­­­: seals@hallite.us
GERMANY
Dichtelemente Hallite GmbH
Billwerder Ring 17
21035 Hamburg
T: +49 (0)40 73 47 48-0
F: +49 (0)40 73 47 48 49
E: seals@hallite.de
AUSTRALIA
Hallite Seals Australia Pty.
Limited
Unit 4, 1273 The Horsley Drive
Wetherill Park,
NSW 2164
T: +61 (0)29 620 7300
F: +61 (0)29 620 7400
E: seals@hallite.com.au
INDIA
Hallite Sealing Solutions
India Pvt. Ltd.
Special Plot #10, 3rd Main,
1st Stage,
Peenya Industrial Estate,
Bangalore - 560 068
T: +91 80 4180 0908
F: +91 80 4180 0900
E: seals@hallite.in
BRAZIL
Hallite do Brasil Tecnologia em
Vedações Ltda.
Avenida 5, 1367 - Jd Claret
Rio Claro - SP,
13503-254
T: +55 (0)19 35231859
F: +55 (0)19 35324805
E: info@halliteseals.com.br
ITALY
Hallite Italia srl
Via Francia 21,
Loc. Guasticce
57017 Collesalvetti - Livorno
T: +39 (0) 58 642 8287 / 9734
F: +39 (0) 58 642 9845
E: seals@hallite.it
CANADA
Hallite Seals (Canada) Ltd.
5630 Kennedy Road,
Mississauga,
Ontario, L4Z 2A9
T: +1 (905) 361 2350
F: +1 (905) 361 2342
E: seals@hallite.ca
UNITED KINGDOM
Hallite Seals International Ltd.
130 Oldfield Road,
Hampton
Middlesex, TW12 2HT
T: +44 (0)20 8941 2244
F: +44 (0)20 8783 1669
E: seals@hallite.com
CHINA
Fenner Sealing Technologies
(Shanghai) Co. Ltd.
785 Xing Rong Road,
Jiading Industrial Park
Jiading District,
Shanghai 201804
T: +86 (0)21 3351 7272
F: +86 (0)21 3351 7085
E: fast.shanghai@fenner.com
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