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DSTI currently provides custom rotating union assemblies to several major rotary filling equipment manufacturers.
These rotary unions are used to transfer various food grade media to the stations in filling equipment. Several designs include an electrical slip ring for power & signal transfer. The slip ring is located in a sealed cover, with IP67 rated connectors. Custom rotary joints can be designed to fit a specific type of equipment and to pass a wide variety of food grade products.
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Rotary Systems designs and manufactures a variety of custom rotary unions for food grade applications. The union pictured is constructed from 300 series stainless steel and utilizes a precision ground shaft, special seals, and dual radial ball bearings.
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DSTI can design & build a custom multi-passage rotary union to fit your specific plastic molding equipment. Many DSTI rotary unions are currently used to transfer water, air & hydraulic fluid into rotating equipment. Designs available for multi-shot, blow molding, vertical molding & numerous other applications. Many designs include our intergrated electrical slip ring to allow both fluid & electrical transfer through the rotating union.
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Air Precision has also developped a range of standard electrical slip rings : EEG, T13 and T20.
They use the same "gold" technology as custom-built slip rings and therefore have excellent electrical qualities and are easily adaptable thanks to interchangeable mechanical interfaces.
Derivates of those standard slip rings are also available.
CONTACT US :
by email : sales@airprecision.com
by phone: +33 1 46 01 21 16
DO NOT HESITATE TO VISIT OUR WEBSITE IN ENGLISH :
www.airprecision-slipring.com
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The SE Series rotary unions were designed for the machine tool industry, but are currently used in a number of industrial applications. DSTI's exclusive RotaRing rotary union/electrical slip ring products allow both fluids & electricity to be transferred through the assembly.
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Rotary Systems' four passage rotary union with integrated 36 circuit slip ring. The union is constructed from plated carbon steel. The union utilizes a hardened and ground shaft, Teflon seals and radial ball bearings.
The slip ring is a 36 circuit compact commercial capsule rated at 2 amps/210VDC or 240VAC. Gold on Gold contacts with speeds us to 250 RPM. Several circuit configurations for the slip ring and a broad range of passages on the rotary union are readily available.
Please contact our Technical Sales department at 1-800-959-0146 with your operating parameters if you need a rotary union with an integrated slip ring. Slip rings are available in various configurations and can be modified to meet your specifications.
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Deublin Coolant Unions are avilable for speeds up to 50,000 rpm and pressures up to 210 bar. They are available with integral ball bearings and in bearingless configurations. In addition, some feature patented "Pop-Off", and "AutoSense" technology making the coolant unions suitable for coolant, MQL and air applications.
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3" Union for Rubber and Plastic Application
- monoflow and duoflow design
- self-supported rotating union
- radial housing connection
- balanced mechanical seal
- seal combination:
Carbon Graphite/Tungsten Carbide
- full-media flow
- easy and quick replacement of sealing components
(rotor seal, floating seal)
- vented housing
- cast iron housing
- steel rotor
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N Series Steam and Hot Oil Unions
- monoflow design: N10
- monoflow and duoflow design: N12
- self-supported rotating union
- large carbon graphite bearing
- pressurized spherical carbon graphite seal
- cast iron housing
- stainless steel rotor
9000 Series Steam and Hot Oil Unions
- monoflow and duoflow design
- self-supported rotating union
- spherical Carbon Graphite seal
- seal wear indicator allows preventive maintenance
- 2 torque lugs on the housing
- nickel-plated cast iron housing
- steel rotor, nickel-plated for steam service
H Series Steam and
Hot Oil Unions
- monoflow and duoflow design
- self-supported rotating union
- convex seal ring better suited to handle mechanical and thermal
shock
- two widely-spaced graphite bearings
- H57 - H127 optional with sight glasses in the end cap
for visual inspection of condensate romoval
- seal wear indicator allows preventive maintenance
- flanged or threaded rotor available
- cast iron housing
- stainless steel rotor
- for steam and hot oil applications in paper, plastic and
textile industries and open gear paper machines
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Deublin steam joints are avilable with either a single bushing / bearing or dual bushing / bearing. Bracket, rod or bell supported stteam joints are also available where external support is essential due to a combination of large size andf / or high speed applications.
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Kadant Johnson invented the rotary pressure joint in 1933, and continues to pioneer innovative steam joint technologies. Use the following table to view our rotary joints designed for steam service.
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DSTI provides custom rotary unions for use in a number of semiconductor equipment designs. Our engineering staff can design a compact, clean-room compatible rotary union to transfer many media commonly used in the semiconductor industry. Please contact DSTI to discuss the specifics of your application.
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The multiple passage rotary union that is shown was designed and manufactured for wafer processing equipment. This union was designed to pass multiple medias without cross contamination between passages.
This rotary union is made from stainless steel and was designed to pass air, vacuum and wafer processing slurry. This is only one example of a union that we have designed for the Semi-conductor industry. We currently have several large OEM's that we provide custom unions for in this industry.
If you have a custom rotary union application, please contact our Technical Sales department at 1-800-959-0146.
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Model Sizes Common Applications
Type BCI 3/4" to 1" Continuous caster rolls, metals industry
Type C-Cast 3/8" to 1-1/2" Continuous caster rolls, metals industry
Type G 1/8" to 5/8" High speed spindles, gun drills, milling
Type OTS Custom Over-the-shaft cooling
Type RX 3/8" to 6" All-purpose cooling, high performance
Type WH 1/2" to 2" General purpose
5000 Series 3" High speed, high shock loading
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DSTI can provide custom rotary unions designed to mount directly to an existing shaft. These units can be used to feed air, grease & other medias into rotating shafts. Please consult your DSTI representitive to discuss the details of your specific application.
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Rotary Systems designs and manufactures a line of standard and custom over-the-shaft rotary unions.
The rotary union shown is constructed from carbon steel and utilizes a precision ground shaft, radial ball bearings and Teflon seals. This is a two passage rotary union with .25" NPT passages with a four inch bore through the shaft. This union was designed specifically for a high pressure hydraulic indexing application.
Our standard over-the-shaft line of rotary unions can be viewed on our website by clicking on the 011 series. Our standard unions are offered in two and four passages with a .5", 1.5” or 2.0” bore through the shaft. The bore through the shaft is independent from the union. Some customers will pass a shaft or electrical wires through this bore.
If you have a custom rotary union application, please contact our Technical Sales department at 1-800-959-0146.
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1⁄8" to 1⁄2" Air-Hydraulic Unions
- monoflow design
- self-supported rotating union
- radial housing connection
- balanced mechanical seal
- seal combinations:
Carbon Graphite/Hardened Tool Steel or
Carbon Graphite/Silicon Carbide
- felt oiler in seal cavity for air service
- oiler for relubrication (3 - 5 drops/month)
- low torque
- weight-optimized design
- aluminum housing
- bearings lubricated for life
3⁄4" to 11⁄2" Air-Hydraulic Unions
- monoflow design
- self-supported rotating union
- radial housing connection
- balanced mechanical seal
- seal combinations:
Carbon Graphite/Hardened Tool Steel or
Carbon Graphite/Ceramic
- felt oiler in seal cavity for air service
- oiler for relubrication (3 - 5 drops/month)
- low torque
- aluminum housing
- stainless steel or steel rotor (respective of model)
Deu-Plex Hydraulic Unions
- duoflow design
- self-supported rotating union
- flanged rotor
- balanced mechanical seals
- seal combinations:
Carbon Graphite/Ceramic - standard
Tungsten Carbide/Ceramic - E.L.S.
- full-media flow
- aluminum housing
- cast iron rotor
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Features
8 different, continuously improved sealing systems
Large number of product varieties available
Customer specific designs, even for high-demanding uses
Combinations of various mediums and electrical currents
The most modern materials and manufacturing processes guarantee the highest quality
Products
In almost all branches of industry rotary unions are needed for transmitting mediums between stationary and rotating machinery parts, whereby every application has different requirements. We have developed an extensive selection of various sealing systems, in order to meet these different requirements, and to be able to offer an optimal solution. We have a large range of products available, and as well customer specific designs.
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Stainless Steel Unions
- monoflow and duoflow (available) design
- self-supported rotating union
- radial or axial (available) housing connection
- seal combinations:
Carbon Graphite/Ceramic - standard
Tungsten Carbide/Ceramic - E.L.S.
- wetted parts made of 316 stainless steel
- suitable for the food, chemical & pharmaceutical industries
- full-media flow
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The rotary union pictured was designed to pass pneumatics and/or DI water for a Chemical Mechanical Planarization (CMP) piece of Semi-conductor equipment. The union is manufactured from 316 stainless steel and the shaft is hard chromed on the seal surface for hardness. We currently provide a number of multiple passage rotary unions to the Semi-conductor industry in the CMP field.
Please contact our Technical Sales Staff for your specific requirement.
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Any semi-rigid gas pump hose can be made flexible and easy-to-handle with DynaVariacor® - the patented multi-directional connector.
It reduces efforts, increases nozzle manoeuvrability.
Prevents unwanted twisting of the hose.
Easy filling whatever the position of the gas tank cover or type of vehicle.
Easy nozzle removal from the vehicle.
This connector Improves uniform wear of the hose thanks to less twisting.
Best flow whatever position the connector is in.
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Rotary Systems' inline dual flow unions are designed for both high and low pressure applications. The unions utilize a hardened and precision ground shaft, impregnated Teflon seals with o-rings and dual radial ball bearings to prevent side loading to the seals.
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A range of swivel joints muli channels with or without electrical commutator, with or without friction.
Many possible diameters of passage.
With of a standard range of products, we carry out products to measure adapted to your application.
Do not hesitate to consult us
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Gamme JR : Pour plateaux indexeurs, joints tournants multivoies, mixte multircuits électrique en option : jusqu'a 12 voies pour air comprimé ou vide et 24 circuits electriques.
Gamme JC : Principe exclusif sans pièces de frottement (1 ou 2 voies). Applications jusqu'a 20 000 t/min et 100 bars. Fonctionne à sec.
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PIPE JOINTS, SWIVEL JOINTS & QUICK COUPLING JOINTS
Metal swivel joints to suit any need for your spraying systems, and modern quick coupling joints made out of high technology plastic materials.
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Airflex Rotorseals allow passage of pressurized fluids from a stationary inlet to a rotating shaft end. Single, dual and triple passage rotorseals are available in a variety of sizes and designs to meet most flow requirements. The multiple passage units can be used for individual control of components mounted on the same shaft, component lubrication and circulating fluid systems.
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TP 8000 series Rotating coupling
Multi circuit rotating coupling, fastening by flange (other on request).
Fluid : All fluids (specify when ordering).
Operating pressure : As per order.
Speed : To be defined according to operating conditions.
Number of circuits : On request.
Installation type : Flange.
Dimension : On request.
Seal type : Composite seal.
Materials : Hardened steel, chemical nickel stainless steel etc.
Temperature : Standard 80°C (others on request).
Rotation principle : Ball bearings
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Description
Rotating union for swiveling or slow rotation speed, for high mechanical stress.
Fluid being conveyed
All fluids and vacuum
O’ring seal or composite seal according to fluid
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Connection turning series TP 4000 Double Series conceived for the cooling of the rollers of continuous castings for the iron and steel industry. Connection designed for slow rotation, great resistance to the load of the flexible devices, mud-laden water, envisaged for dusty environment. Fluid to be conveyed: Water Pressure operating: 15 bar Speed: Lower than 15 turns/minutes passage Numbers: 1 Type of establishment: Right or 90° Dimension: According to Standard request for sealing: Ring impregnated graphite/stainless steel treaty Materials: Body out of bronze and central stainless steel tube treaty Temperature: Until 120°C at a peak Principle of rotation: Bearing with contact obliques out of stainless steel treated with nonjointed balls
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