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custom rotary unions

The KONSTANDIN series rotary unions form a good basis for many applications. These products are standard and pose limitations when subject to high demands. However, certain applications must still be implemented.

This is where KONSTANDIN’s solution competence comes into play.
Our custom developments help you to exceed the limits, even in extreme applications.

For these and other requirements, KONSTANDIN is your reliable partner:

  • Very high pressure
  • More than 8 channels
  • Different duct sizes and/or connections
  • High rotation speeds
  • High/ low temperature range
  • Flange connections
  • Complete underwater operation
  • Combination for welding current and inert gas
  • Etc.

In order to find the right product for your application as quickly as possible,
advice is essential.

Talk to the experts at KONSTANDIN first.

On this page you will find some examples of special rotary unions which have been individually designed and manufactured in-house according to customer requirements.

Rotary unions
in sandwich construction

Article no. ZK5140

Type DDF-15-3/8“-SO

TECHNICAL DATA
Channels: 15
Connection: G 3/8“
Rotation speed: 35 rpm
Rotary movement: continuous
Pmax: 8 bar / -0,8 bar
Medium: Compressed air / vacuum
Temperature range: 0°C to +80°C
Features: – sandwich construction,
– radial outlets on the shaft
Application: Special mechanical engineering

Rotary unions
for low temperatures (up to -20°C)

Article no. ZK5120

Type DDF-2-M33x2-SO

TECHNICAL DATA
Channels: 2
Connection: M 33×2
Rotation speed: 25 rpm
Rotary movement: continuous
Pmax: 23 bar
Medium: helium
Temperature range: -20°C to +50°C
Features: – Preparation for current transformer
– special seals
Application: Wind turbine

 

Rotary unions with
Connection at the front

Article no. ZK5159

Drehdurchführung mit stirnseitigem Anschluss

Type DDF-8-M5-SO

TECHNICAL DATA
Channels: 8
Connection: M5 / DIA 03
Rotation speed: 200 rpm
Rotary movement: pulsed
Pmax: 8 bar / -0,8 bar
Medium: Compressed air / vacuum
Temperature range: 0°C to +80°C
Features: – Special geometry
(small housing diameter)
– frontal connection housing
– Ball bearings with sealing lips
Application: Special mechanical engineering,
Installation in rotary indexing table

Rotary unions
in sandwich construction

Article no. ZK5151

Type DDF-4-1 1/4“-SO

TECHNICAL DATA
Channels: 4
Connection: G 1 1/4“
Rotation speed: 60 rpm
Rotary movement: continuous pulsed
Pmax: 16 bar
Medium: Compressed air / vacuum
Temperature range: 0°C to +80°C
Features: – sandwich construction
– hollow shaft
Application: Special mechanical engineering

 

Rotary union with hollow shaft
and special seals

Article no. ZK5160

Sonder-Drehdurchführung

Type DDF-2-1/8“-SO

TECHNICAL DATA
Channels: 2
Connection: G 1/8“
Rotation speed: 250 rpm
Drehbewegung: continuous
Pressure: 10 bar / -0,8 bar
Medium: Compressed air / vacuum
Temperature range: +10°C to +100°C
Features: – Special seals
– Hollow shaft with media handover to customer shaft
  (DIA 40 H7)
Application: Robot application

 

Rotary union with
Medium-transfer to customer shaft

Article no. ZK5125

Type DDF-1-1/4“-SO

TECHNICAL DATA
Channels: 1
Connection: G 1/4“
Rotation speed: 60 rpm
Drehbewegung: continuous
Pressure: 8 bar / -0,8 bar
Medium: Compressed air / vacuum
Temperature range: 0°C to +80°C
Features: – Special seals
– Special geometry
– Medium-transfer to customer shaft
Application: Special mechanical engineering

 

Rotary union for installation
in rotary indexing table

Article no. ZK5109-SO-01

ZK5109-SO-01 for installation in rotary indexing table

Type DDF-2-M5-SO

TECHNICAL DATA
Channels: 2
Connection: M5 / DIA 03
Rotation speed: 200 rpm
Drehbewegung: clocking, oscillating
Pmax: 10 bar / -0,8 bar
Medium: compressed air / vacuum
Temperature range: +10°C to +80°C
Features:

– Special geometry for installation in rotary indexing tables
– front connection on the housing to reduce the installation dimensions
– Ball bearings with sealing lips

Application: – Installation in rotary indexing table
– automation technology

 

Rotary union with hollow
shaft in different sizes

Article no. ZK5126

Type DDF-2-M5-SO

TECHNICAL DATA
Channels: 2
Connection housing: M 5
Connection shaft: Ø 4 mm
Rotation speed: 10 rpm
Drehbewegung: pulsed
Pmax: 8 bar
Medium: Compressed air
Temperature range: 0°C to +80°C
Features: – Special seals
– Special geometry
– Hollow shaft (28 mm diameter)
Application: Special mechanical engineering

 

Rotary unions
in stainless steel

Article no. ZK5111

Type DDF-3-1/8“-H-SO

TECHNICAL DATA
Channels: 3
Connection: G 1/8″
Rotation speed: 250 rpm
Rotary movement: pulsed
Pmax: 70 bar
Medium: Compressed air, CO² , aerosol
Temperature range: 0°C to +80°C
Features: – Special seals
– Special media
– Special geometry
– Stainless-steel design
– Hollow bore in shaft (ø25mm)
Application: Cryogenic honing process
with ATS system

Rotary unions
in miniature design

Article no. ZK5490

Type DDF-1-M5

TECHNICAL DATA
Channels: 1
Connection: M5
Rotation speed: 3000 rpm
Rotary movement: continuous
Pmax: 16 bar
Medium: Compressed air
Temperature range: 0°C to +80°C
Features: miniature design
(little installation space at the customer)

Combined rotary union for standar
and aggressive media

Article no. ZK5583-SO-01

Type DDF-8-1/4 + DDF-1-1/2-H-L

TECHNICAL DATA
Channels: 8+1
Connection: G 1/4″ + G 1/2″
Rotation speed: 50 rpm
Rotary movement: continuous
Pmax: 10 bar + 2 bar
Medium: Druckluft + Peroxid
Temperature range: 0°C to +70°C
Features: – 2-fold combined
– Special seals

Rotary union
with large flow

Article no. ZK1189-SO-01

Type DDF-1-2

TECHNICAL DATA
Channels: 1
Connection: G 2″
Rotation speed: 50 rpm
Rotary movement: continuous
Pmax: 10 bar
Medium: Compressed air
Temperature range: 0°C to +80°C
Features: – Special seals
– large flow

 

Rotary unions
with 8 Channels

Article no. ZK5559-H

Type DDF-8-1/4-SO-01

TECHNICAL DATA
Channels: 8
Connection: G 1/4″
Rotation speed: 15 rpm
Rotary movement: 180° in 2 sec
Pmax: 10 bar
Medium: Water
Temperature range: 0°C to +70°C

 

Vacuum rotary union
with flange connection

Article no. ZK5587 / ZK5588

Types DDF-1-16 and DDF-1-25

TECHNICAL DATA
Channels: 1
Connection: flange NW 16 and NW 25
Rotation speed: 10 rpm
Rotary movement: continuous
Pmax: -1 bar / 16 bar
Medium: Vacuum / compressed air / nitrogen
Temperature range: 0°C to +100°C
Features: – flange connection
– suitable for nitrogen environmen

 

Rotary union
with special seals

Article no. ZK5545-SO-02

Type DDF-4-1/4-SO-02

TECHNICAL DATA
Channels: 4
Connection: G 1/4″
Rotation speed: 45 rpm
Rotary movement: continuous pulsed
Pmax: 10 bar
Medium: Compressed air
Temperature range: 10°C to +60°C
Features: – Special seals
– Hollow shaft with through hole DIA 60

 

Rotary unions
in stainless steel

Article no. ZK5515A-H-SO-02

Type DDF-8-1/2-H-SO-02

TECHNICAL DATA
Channels: 8
Connection: G 1/2″
Rotation speed: 15 rpm
Pmax: 10 bar
Medium: Nitrogen / vacuum
Temperature range: 0°C to +80°C
Features: – Special shaft for torque transmissions
– modular system
Application: Packaging machines

 

Combined air inlet: at the front and on the shaft circumference (16 channels)

Article no. ZK5554

Type DDF-16-1/8

TECHNICAL DATA
Channels: 16
Connection: G 1/8″
Rotation speed: 10 rpm
Pmax: 6 bar
Medium: Compressed air
Temperature range: 0°C to +80°C
Features: – Channels according to customer specifications
– combined air inlet:
at the front and on the shaft circumference