Rotary Joints

Q: What is the purpose of a Rotary Joints?

A Rotary Joints - also known as a rotary coupling, fluid rotary union or rotary adapter - enables the transfer of media through a rotating assembly. It prevents twisting, tearing or crushing of lines and ensures safe 360° rotation at high pressures. It is indispensable in areas where continuous rotation, high pressure stability and complete tightness are required: Robotics, mechanical engineering, construction technology, automation and production plants.

Q: What performance data do CAMM Rotary Joints achieve?

Our Rotary Joints are developed for extreme loads: Operating pressure up to 600 bar Temperature range -20 °C to +90 °C Speeds up to 60 rpm Up to 16 separate media channels Multi-stage seals and hardened bearings ensure minimal friction and exceptional tightness - even under shock loads and rapid load changes. Optional electrical slip rings are available for combined fluid and data passages.

Q: What materials are the Rotary Joints made of?

There is a choice: C45E steel for high-pressure hydraulics Stainless steel alloys 1.4301 / 1.4571 for corrosive environments EN AW-6082 T6 aluminum for weight-sensitive applications Coating options such as hard chrome plating, gas nitriding or zinc-nickel increase service life, sliding behavior and wear protection. The seals are made of NBR, FKM or PTFE - adapted to the medium, temperature and pressure.

Q: In which industries are Rotary Joints used?

CAMM Rotary Joints are used in almost all branches of industry: Construction machinery agricultural engineering Robotics & Automation Conveyor technology Wind power Offshore & Marine Machine tools Energy and fluid technology The flexible number of channels, the freely selectable connection standards (G, SAE, NPT threads) and the robust design make them ideal for OEM applications with high safety and precision requirements.

Q: Can Rotary Joints be electrically extended?

Yes - with CAMM Hybrid Rotary Joints, fluid channels, energy lines and data signals can be combined in a single rotary module. Gold-plated beryllium copper contacts, low contact resistance and optimized contact surfaces ensure interference-free signal quality - even under vibration loads.

Q: How are CAMM Rotary Joints customized?

Each Rotary Joints is precisely matched to the target application: Number of channels & nominal pressures Choice of material & heat treatment Connection standards (G, SAE, NPT) Sealing materials Integration of electrical slip rings Adaptation to rotational torques & load profiles FEM calculations, flow simulations and CAD development are used to create customized rotary systems that are functional, durable and low-maintenance.

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Multi-channel rotary systems up to 16 lines
Transmission pressure up to 600 bar - absolutely leak-free
Stable under axial, radial and combined loads
Designed for maximum service life under extreme conditions

+20 years of experience

Proven quality in drive systems

Present throughout Europe

Warehouse and service throughout Europe.

Efficient systems

Performance and durability combined.

Customer focus

Solutions exactly as required.

Multi-channel rotary joints for complex media transmission

Technically leading. Load-optimized. Developed for continuous operation.

CAMM rotary joints are among the most precise rotary systems in their class. They enable the reliable transfer of fluids, gases or special media through a rotating interface - even when high pressures, strong vibrations or changing temperature profiles occur.

Our multi-channel systems have a modular design and can accommodate up to 16 completely separate media circuits. Each system is manufactured to strict CAMM quality standards, ensuring an exceptionally long service life and absolute operational reliability even under full load.

Outer Ring

Grease Nipple

Inner Ring

Lip Seal

Worm Gear

Outstanding features

Tight transmission up to 600 bar - without pressure loss, without microleakage
Up to 16 independent hydraulic, pneumatic or servo fluid channels
Temperature-resistant from -20 °C to +90 °C
Material options for every application: C45, aluminum, ductile iron
Customized OEM connections & port layouts
Optional: integration of slip rings for combined media and signal routing

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Swivel joints for high-pressure hydraulics and industrial pneumatics

CAMM develops rotary unions that are designed for extreme mechanical and hydraulic loads - suitable for both stationary industrial plants and mobile machines with high shock, vibration and continuous load profiles.

Each slewing ring is based on a manufacturing technology that combines high-precision CNC machining, multi-layer high-performance sealing systems, hardened bearing assemblies and finely tuned sealing gap geometries. This combination ensures low-friction, controlled rotation, exceptionally low restoring torques and maximum tightness even under high-pressure conditions.

Thanks to the modular system core, CAMM slewing rings can also be easily expanded with analog or digital signal transmission technology - for example with CAN bus, Profinet or customer-specific control circuits - enabling compact, combined fluid and data transmission within a single rotary module.

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Areas of application for fluid, energy and data transmission

Performance that masters tough industrial environments

CAMM slewing rings prove their strength wherever continuous rotation and stable media transfer are required at the same time. Typical applications are

Hydraulic units
Construction and agricultural machinery
Conveying and handling systems
Offshore technology & marine
Robotics & Automation
Machine Tools

Each unit is designed to compensate for pressure cycles of up to 600 bar, mechanical transverse loads, vibrations and temperature changes. Precise manufacturing tolerances of less than 0.01 mm ensure smooth running and prevent premature wear.

Hydraulic devices:
Hydraulic devices generate power for movement, lifting and rotation in machines in various industries such as construction, transportation and manufacturing.

Swivel joints - marine and offshore systems

Marine and offshore systems:
Marine and offshore solutions work in harsh conditions and reliably support platforms, cranes and specialized lifting systems.

Slurry tanks:
Slurry tanks are used for the safe storage, mixing and spreading of liquids in agricultural and industrial applications.

De-icing devices:
De-icing devices increase safety by spraying de-icing fluids specifically onto aircraft, vehicles or infrastructure to prevent icing in cold weather.

Technological expertise from a single source - CAMM slewing rings

The CAMM portfolio ranges from compact 2-channel slewing rings to high-performance 16-channel systems that work reliably even in demanding industrial conditions. All models offer a pressure resistance of up to 600 bar, a rotation speed of up to 60 rpm and a temperature resistance of -20 °C to +90 °C.

Hybrid slewing rings with up to 30 slip ring tracks, 250 V and 40 A are available for applications with combined media and data transmission. This allows fluids, energy and signals to be transmitted simultaneously via a single rotary axis - ideal for particularly compact machine concepts.

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Technical data at a glance

Parameters	Value
Ports	2 to 16
Fluid	Hydraulic oil
Pressure	Up to 420 Bar
Temperature	-20° / +90°
Rotational Speed	Up to 60 RPM
Electric Slip Ring	Standard or Customized
Material Housing	C45 / Aluminium / Spheroidal Graphite
Material Shaft	C45 / Spheroidal Graphite (GGG)
Sealing	Parker / Trelleborg / Freudenberg
Surface treatment	Zinc Phosphating / Zinc Plating / Chrome Plating / Induction hardening / Nitriding

Mechanical data at a glance

Parameters	Value
Enclosure Type	Lifting and Earthmoving
Enclosure Material	Aluminum / Polycarbonate
Protection	IP67
Working Temperature	-40°C until 60°C
Operating Humidity	0 ~ 85% RH
Rotating shaft on Ball Bearings	Sealed and Lubricated for Life
Rotating Speed Max	1 ~ 50 RPM
Surface Treatment	Mechanical Elements (Zinc Nickel (1000 hours of Salt Spray))
Torque	1Nm ; -3Nm / 40 Ring

Electrical data at a glance

Parameters	Value
	Power	Auxiliar	Signal
Ring Slip Ring	Bronze / Nickel Plated	Bronze / Nickel Plated	Bronze Gold
Brush Slip Ring	Beryllium Copper / Nickel Plated	Beryllium Copper / Nickel Plated	Beryllium / Copper Gold
Rated Voltage	220 / 250V	110 / 220V	< 24Vdc
Rated Current	In < 40A	In < 25A	In < 2A
Insulation Resistance	1000V	5000V	250V
Lead Wires	4 – 70 mm²	0.75 – 2.5 mm²	< 0.5 mm²
Electrical Noise	< 1mΩ	< 8mΩ	< 5mΩ
Cable Gland	Stainless Steel, Nickel-Plated Brass Exd. M20 / M25 / M32 / M40
Armored / Non-Armored Cable	Cable Type Armored, PUR
Conduit	Hose: 1/2", 3/4", 1", 1 1/2"
Slip Ring Attachment	A = 1" B = 1 1/2"

Technical advice from the specialist

Contact

Just send us a short message and we will be happy to answer your questions by phone or e-mail.

Address

Aarbergerweg 9-D 1435CA Rijsenhout Netherlands

Contact us now

+31 (0)297 268942

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Rotary Joints

FAQ Rotary Joints:

What is the purpose of a Rotary Joints?

A Rotary Joints - also known as a rotary coupling, fluid rotary union or rotary adapter - enables the transfer of media through a rotating assembly. It prevents twisting, tearing or crushing of lines and ensures safe 360° rotation at high pressures. It is indispensable in areas where continuous ...

What performance data do CAMM Rotary Joints achieve?

Our Rotary Joints are developed for extreme loads: Operating pressure up to 600 bar Temperature range -20 °C to +90 °C Speeds up to 60 rpm Up to 16 separate media channels Multi-stage seals and hardened bearings ensure minimal friction and exceptional tightness - even under shock loads and...

What materials are the Rotary Joints made of?

There is a choice: C45E steel for high-pressure hydraulics Stainless steel alloys 1.4301 / 1.4571 for corrosive environments EN AW-6082 T6 aluminum for weight-sensitive applications Coating options such as hard chrome plating, gas nitriding or zinc-nickel increase service life, sliding beha...

In which industries are Rotary Joints used?

CAMM Rotary Joints are used in almost all branches of industry: Construction machinery agricultural engineering Robotics & Automation Conveyor technology Wind power Offshore & Marine Machine tools Energy and fluid technology The flexible number of channels, the freely selectable connec...

Can Rotary Joints be electrically extended?

Yes - with CAMM Hybrid Rotary Joints, fluid channels, energy lines and data signals can be combined in a single rotary module. Gold-plated beryllium copper contacts, low contact resistance and optimized contact surfaces ensure interference-free signal quality - even under vibration loads. ...

How are CAMM Rotary Joints customized?

Each Rotary Joints is precisely matched to the target application: Number of channels & nominal pressures Choice of material & heat treatment Connection standards (G, SAE, NPT) Sealing materials Integration of electrical slip rings Adaptation to rotational torques & load profiles FEM cal...

The CAMM Group is a future-oriented company founded by various entrepreneurs with more than 20 years of experience in the mobile construction industry.

Contact

Email
info@camm-group.eu

Phone (Netherlands)
+31 (0)297 268942

Phone (Italy)
+39 030 2702557