MINING SEALS

 

DMR Seals has worked closely with clients operating in the mining industry for over 15 years to provide advanced engineered sealing solutions to help improve efficiency, increase productivity and reduce downtime in the field.

Our selection of high-pressure rod and piston seals, close tolerance guide rings, high-performance wiper seals for abrasive duty and reliable static sealing solutions have been used in rock breakers, long wall hydraulic cylinders, cutting machinery and drilling applications with great success.

A selection of our high-performance seal profiles used within the mining industry are shown below. If you cannot see the product you require, need help with a problem or have a new application, please contact our technical team who will be pleased to help.

 

IMPORTANT - Please Note: The data shown below are maximum values and operating ranges and cannot be used at the same time.

For example: The maximum operating speed will depend on material type chosen, working pressure, application temperature and clearance gap values.  The temperature range shown is also dependent on choice of material and media to be sealed.

Product Range

ProfileNameOperating RangeSummary
AB02B
AB02B Temperature Min: -55 °C Max: 210 °C
Speed
Max: 5 m/s
The AB02B Wiper Seal is recommended for heavy duty applications where possible contaminants such as mud or ice may be present. The seal is designed with both pre-load and a sealing lip on the outside diameter. This external sealing lip helps prevent debris and moisture travelling behind the static diameter …Read More
AB12
AB12 Temperature Min: -50 °C Max: 210 °C
Speed
Max: 5 m/s
AB12 is a premium flexible snap-fit Wiper Seal which is commonly referred to as ‘the mining wiper’ because it has been designed to work in heavy duty safety critical environments where system contamination is unacceptable. The special snap in design provides pre-load over the outside diameter of the groove which …Read More
AB13
AB13 Temperature Min: -50 °C Max: 260 °C
Speed
Max: 1 m/s
AB13 is commonly used in tandem with other wiper seals to provide extra protection from external contamination or can be used on its own where groove space is restricted. The AB13 is normally produced in either hard grade engineering plastics such as Nylon or hard grade PU materials. On occasions …Read More
AB14
AB14 Temperature Min: -50 °C Max: 260 °C
Speed
Max: 1 m/s
The AB14 is an excellent heavy-duty clip-fit scraper seal and is recommended when the scraping of abrasive particles from the shaft is required. The groove design for the AB14 is simple which means machining of the metal carrier is quick and most of all economical. Installation of the AB14 is …Read More
AB29
AB29Temperature Min: -50°C Max: 210°C
Speed
Max: 5 m/s
AB29 Profile is a further modification on the industry standard flexible snap-fit wiper seal. The seal is produced with interference across the outside diameter providing the snap-fit to keep it stable in the groove while the piston rod is reciprocating. The extra sealing edge toward the outside diameter provides security …Read More
FB01
FB01Pressure: Max: --
Temperature
Min: -200°C Max: 200°C
Speed Max:
5 m/s
DMR Seals FB01 profile is a tight tolerance guide ring / wear ring which can be manufactured from a number of our high-performance thermoplastic materials to provide precise clearance control of mating metallic hardware members in fluid power or pneumatic systems.Read More
FB07
FB07Pressure: Max: --
Temperature
Min: -200°C Max: 200°C
Speed Max:
5 m/s
DMR Seals FB07 profile is a tight tolerance ‘U’ shaped piston guide ring / wear ring which is produced with additional retaining lugs which help prevent axial movement while the piston is reciprocating under pressure. These retaining lugs can also help retain the ring when it may be required to …Read More
FB08
FB08Pressure: Max: --
Temperature
Min: -200°C Max: 200°C
Speed Max:
5 m/s
The FB08 profile is a tight tolerance ‘U’ shaped rod working guide ring / wear ring which is produced with additional retaining lugs which helps prevent axial movement while the rod is reciprocating under pressure. Profile FB08 can be manufactured from several of our high-performance thermoplastic materials to provide precise …Read More
FB09
FB09Pressure: Max: --
Temperature
Min: -200°C Max: 200°C
Speed Max:
5 m/s
DMR’s FB09 profile is a modification of our standard FB08 rod working guide ring which incorporates a scraping / wiping edge on the non-pressure side to allow it to be utilised in heavy duty applications where the removal of heavy particles of mud or ice may be present. As per …Read More
KB03A
KB03APressure Max: 400 bar
Temperature
Min: -55 °C Max: 210 °C
Speed
Max: 0.7 m/s
Our KB03A profile is an asymmetric single acting / uni-directional hydraulic piston u-cup seal complete with both an O-Ring energizer and multiple sealing lips. The O-Ring energiser helps sealing at low pressures, while the multiple sealing lips provide some sealing redundancy and lubrication reservoirs to help reduce friction in dynamic …Read More
KB04
KB04Pressure Max: 700 bar
Temperature
Min: -55 °C Max: 210 °C
Speed
Max: 0.7 m/s
The KB04 profile is a modification of both the KB02 and KB03 profiles. The inclusion of the pressure activated back-up ring offers extrusion resistance and ensures safe use at higher pressures. The use of the KB04 profile also allows the design engineer to use larger radial clearances where metal to …Read More
KB09D
KB09DPressure Max: 400 bar
Temperature
Min: -50 °C Max: 210 °C
Speed
Max: 0.5 m/s
Designed for use on one-piece solid pistons the KB09D is a modification of our KB09C profile, commonly used in hydraulic cylinders found in off-highway applications. It is a double acting/bi-directional piston seal comprising of a central elastomeric sealing element and precision machined thermoplastic back-up rings which are split to allow …Read More
KB09E
KB09EPressure Max: 400 bar
Temperature
Min: -50 °C Max: 210 °C
Speed
Max: 1 m/s
Designed for use on one-piece solid pistons the KB09E is a 6-piece double acting/bi-directional heavy-duty piston seal. The seal is commonly used in large diameter, long-stroke applications that have high bearing loads and require larger clearance gaps between the hardware components to prevent metal-to-metal contact. The central sealing element is …Read More
KB23
KB23Pressure Max: 400 bar
Temperature
Min: -50 °C Max: 110 °C
Speed
Max: 0.7 m/s
Designed for use on one-piece solid pistons and commonly used in mobile hydraulics in machinery such as excavators, the KB23 is a 4-piece double acting/bi-directional piston seal comprising of a central polyurethane sealing element, elastomeric energising ring and precision machined thermoplastic guide rings which are split to allow assembly onto …Read More
KB23B
KB23BPressure Max: 1500 bar
Temperature
Min: -50 °C Max: 110 °C
Speed
Max: 0.7 m/s
Designed for use on one-piece solid pistons the KB23B is a high-pressure modification of our standard KB23 profile. Like its sister product It is a 4-piece double acting/bi-directional piston seal comprising of a central polyurethane sealing element, elastomeric energising ring and precision machined thermoplastic back-up rings which are split to …Read More
RB03
RB03Pressure Max: 400 bar
Temperature
Min: -55 °C Max: 210 °C
Speed
Max: 0.3 m/s
High pressure double acting rotary seal complete with integral anti extrusion rings. Suitable for slow rotational movement and high pressures and/or large extrusion gaps. For exact limitations please consult our technical department.Read More
RB09
RB09Pressure Max: 300 bar
Temperature
Min: -50 °C Max: 210 °C
Speed
Max: 2 m/s
PTFE composite rotating rod seal, o ring activated. Compact design suitable for small installation spaces where a low friction seal is required. Wide chemical and thermal resistance depending on o ring material selection. Wide range of PTFE compounds.Read More
RB10
RB10Pressure Max: 300 bar
Temperature
Min: -50 °C Max: 210 °C
Speed
Max: 2 m/s
PTFE composite rotating piston seal, o ring activated. Compact design suitable for small installation spaces where a low friction seal is required. Wide chemical and thermal resistance depending on o ring material selection. Wide range of PTFE compounds.Read More
RB13
RB13Pressure Max: 600 bar
Temperature
Min: -50 °C Max: 210 °C
Speed
Max: - m/s
The simple O-Ring is one of the oldest and most trusted static sealing methods available. DMR Seals can manufacture O-Rings ‘flash-free’ on the outside and inside diameter contact points helping to provide leak-free performance in radial sealing applications. We manufacture Rubber O-Rings, Polyurethane O-Rings, PTFE O-Rings and O-Rings for rapid …Read More
RB14
RB14Pressure Max: 160 bar
Temperature
Min: -50 °C Max: 210 °C
Speed
Max: - m/s
Our RB14 is a simple square section or rectangular profile used for economical sealing of SAE flanges for both internal and external pressure (confirmation of the pressure direction is required). It provides good low-pressure sealing efficiency up to 100 Bar which can be increased through the correct choice of back-up …Read More
SB18
SB18Pressure Max: 400 bar
Temperature
Min: -55 °C Max: 210 °C
Speed
Max: 0.7 m/s
Our SB18 profile is an asymmetric single acting / uni-directional hydraulic rod u-cup seal complete with a secondary sealing lip and an O-Ring energizer which is recommended for low pressures, soft start systems or applications where leak free tightness is paramount above all else. The O-Ring energiser in this seal …Read More
SB18A
SB18APressure Max: 400 bar
Temperature
Min: -55 °C Max: 210 °C
Speed
Max: 0.7 m/s
Our SB18A profile is a modification of the standard SB18 O-Ring energised U-Cup seals profile and includes a secondary sealing lip on both its inside and outside diameters. The O-Ring energiser in this seal provides further sealing force across the sealing lips to ensure leak free performance even at low …Read More
SB24
SB24Pressure Max: 700 bar
Temperature
Min: -55 °C Max: 210 °C
Speed
Max: 0.7 m/s
Commonly used in heavy duty agricultural, mobile plant and mining hydraulic applications, the SB24 is the first-choice rod seal where harsh operating conditions exist or where extreme pressure spikes exist in hydraulic systems. The SB24 is a hybrid seal which takes the designs of various seals to provide a complete …Read More
SB24A
SB24APressure Max: 700 bar
Temperature
Min: -55 °C Max: 210 °C
Speed
Max: 0.7 m/s
Commonly used in the mining industry in vertical hydraulic cylinder applications, the SB24A is the first-choice rod seal where harsh operating conditions and/or where extreme pressure spikes exist in hydraulic systems. The SB24A is a hybrid seal which takes the designs of various seals to provide a complete all-round performer …Read More
SS01
SS01Pressure Max: 400 bar
Temperature
Min: -55 °C Max: 210 °C
Speed
Max: - m/s
DMR Seals SS01 profile is a static O-Ring and Back-up Ring replacement seal. It is used where the installation of 2 back-up rings and an O-Ring are problematic and time consuming. The tapered sealing points allow easier installation into the mating hardware and the dual contact points offer a degree …Read More
STB08
STB08Pressure Max: 1000 bar
Temperature
Min: -200 °C Max: 260 °C
Speed
Max: 0 m/s
The STB08 profile is a simple endless / solid back-up ring design, but it is a precision machined component that is used to protect O-Rings and other static and dynamic seals where system pressures are greater than the capabilities of the seal alone or where high temperatures and excessive clearance …Read More
STB09
STB09Pressure Max: 1000 bar
Temperature Min: -200°C Max: 260°C
Speed Max: --
The STB09 profile is an endless / solid back-up ring design that is precision machined and used to protect O-Rings and other dynamic seals where system pressures are greater than the capabilities of the seal alone or where high temperatures and excessive clearance / extrusion gaps are present. The STB09 …Read More