SPINNER Fiber Optic Rotary Joint with Slip Ring: P-FORJ

Fiber optic rotary joints (FORJs) are powerful tools for transmission at high data rates via rotating interfaces. Such applications typically require the conversion of electronic data into light signals on either or both sides of the rotating junction. Powering the electro-optical converter at the rotating side is crucial in these cases.

To solve this problem, we have designed a P-FORJ (P stands for power) that transmits light signals and electric power at the same time. Any desired combination of high-quality SPINNER FORJ and slip ring can be easily configured to suit your application. 

Fiber Optic Rotary Joint with Slipring – P-FORJ
Download Brochure (2 MB)

Smallest P-FORJ in the Market

We offer you the smallest P-FORJ now available in the market. It enables high data transmission rates while only requiring seven millimeters of free space around its rotational axis. And if its slip ring wears out, it’s designed for very easy replacement to let you take full advantage of the exceptionally long life and reliability that characterize all SPINNER fiber-optic rotary joints.

We supply our P-FORJs together with standard lengths of fiber and electric cable. If our regular portfolio doesn’t meet your requirements, please don’t hesitate to contact us – you can count on us to offer you a viable solution.

Motor-driven hybrids, encoders, and RF rotary joints are also available. Please also ask about our specially designed and tested fiber-optic multiplexers for combining with our P-FORJ.

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SPINNER SmartLoad Service

Thank you for your interest in the service and maintenance procedures for SPINNER SmartLoads!
Here you can access the latest manuals and documents and find out which updates are available for your SmartLoad and how to install them.

!!! IMPORTANT !!!
To get the latest updates, please make sure to register your SPINNER SmartLoad!
You will also receive information on how to proceed.

Register your SPINNER SmartLoad

Service and Maintenance Procedure - Overview

Please note:
Depending on your devices' power, different procedures apply. Please take your time to chose the right ones!

Service and Maintenance Procedures for 10kW SmartLoads

Applying for BNs: 546423xxxxx

Step 1: Service Notice Change „Tank Caps“

If you receive a new tank cap from our service team, please follow these instructions: Service Notice SmartLoads Tank Caps (0.5 MB)

Step 2: Functional Test and Service Notice

It is crucial to carry out the functional test described in the Service Notice Visual Inspection and Functional Test once a year. The videos below also explain the procedure depending on the application.

Please fill out the checklist in the Service Notice for each load/test and send it back to our service team who will get in touch with you in case of irregularities:
This email address is being protected from spambots. You need JavaScript enabled to view it..

Step 3: Coolant Change of 10kW SmartLoads

This video explains how to change the coolant of your 10kW SmartLoad.
It also shows how to flush the system in case the coolant type is changed.

Step 4: Set Idle Speed

This video shows how to set idle speed for coolant pumps.
You will also find this procedure explained in chapter 4 of the corresponding
Service Notice Visual Inspection and Functional Test.

Service and Maintenance Procedures for 25-55kW SmartLoads

Applying for BNs: 546404xxxxx, 546430xxxxx, 546434xxxxx, 546435xxxxx, 546437xxxxx,, 546439xxxxx

Step 1: Service Notice Change „Tank Caps“

If you receive a new tank cap from our service team, please follow these instructions: Service Notice SmartLoads Tank Caps (0.5 MB)

Step 2: Software Update

It's important to use the right software for your load model. Using the latest update gives you better overall protection and ensures smoother operation..

Go to SmartLoads software updates

The following two videos explain how to update your load and install the correct software update.
You will also find these procedures explained in chapter 4 of the Service Notice Visual Inspection and Functional Test.

Step 3: Power Surge Robustness

This video explains how to achieve greater resistance to mains power fluctuations.
You will also find this procedure explained in chapter 5 of the Service Notice
Visual Inspection and Functional Test.

Step 4: Functional Test and Service Notice

It is crucial to carry out the functional test described in the Service Notice Visual Inspection and Functional Test once a year. The videos below also explain the procedure depending on the application.

Please fill out the checklist in the Service Notice for each load/test and send it back to our service team who will get in touch with you in case of irregularities:
This email address is being protected from spambots. You need JavaScript enabled to view it..

Step 5: Coolant Change

This video explains how to change the coolant of SmartLoads.
It also shows how to flush the system in case the coolant type is changed.

Step 6: Indoor Loads Only: Set Idle Speed

This video shows how to set idle speed for coolant pumps.
Note: Only for SmartLoads with internal heat exchangers.
You will also find this procedure explained in chapter 6 of the Service Notice
Visual Inspection and Functional Test.

Step 7: Installing the Float and Snap Disc Switch

In this video you can learn how to install the float switch and snap disc
switch correctly. Please also see the installation instructions being enclosed to
the matching installation kit.

Coming soon:
We will provide more details about maintenance and service work on this SPINNER SmartLoad Service page!

Datasheets, Manuals and Documentation

Our Product Finder contains extensive information and recources on all part numbers. Enter a part number here and click on the download tab.

Product Finder

Remote Training and One-on-One Help From Us in Germany

Sessions are available on an individual basis. To register, send an email to This email address is being protected from spambots. You need JavaScript enabled to view it..

Please contact our service team (This email address is being protected from spambots. You need JavaScript enabled to view it.) if you have any questions or need assistance!

SPINNER Smart Loads - Software Updates

Download software updates and installation instructions for current and obsolete SPINNER Smart Loads.

Please make sure to download the correct software version for your individual
SPINNER Smart Load to prevent from malfunction!

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Software version D13350 suitable for loads with internal heat exchanger and single input with the following part numbers:

Download Software Version D13350 Rev. J

Software version D13351 suitable for loads with internal heat exchanger and dual inputs with the following part numbers:

• BN 546434
• BN 546434C0200
• BN 546434C0300
• BN 546434C0400

Download Software Version D13351 Rev. H

Software version D13352 suitable for loads with external heat exchanger and single input with the following part numbers:

Download Software Version D13352 Rev. I

Software version D18060 suitable for loads with external heat exchanger and dual inputs with the following part numbers:

• BN 546434C0220
• BN 546434C0230
• BN 546434C0330

Download Software Version D18060 Rev. D

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SPINNER SmartLoad Online Registration Form

Please register your SPINNER SmartLoad to get the latest updates. You will also receive information on how to proceed.

SmartLoad Details and Contact Information

You will receive a copy of your submitted data by email. We will get in contact with you as soon as possible!

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