Confirm the complete RK4004 part number and series from the product label.

Erhardt+Leimer RK4004 Web Guiding Controller Board
- Part number
- RK4004
- Availability
- In stock
- Category
- Drives, Inverters & Soft Starters
- Subcategory
- Drive Control Boards & Keypads
RK4004 product information
Erhardt+Leimer RK4004
Reliable replacement and control solution for precise web alignment in continuous material processing equipment
| Brand | Erhardt+Leimer |
| Model | RK4004 |
| Voltage | 24 V DC |
| Country of Origin | Germany |
| Weight | Approximately 0.2 kg |
| Dimensions | Approximately 160 x 100 x 30 mm |
| Warranty | 6 months |
| Certifications | CE |
| SKU / MPN | RK4004 |
| What’s in the box | 1 x Erhardt+Leimer RK4004 web guiding controller board |
| Product Type | Web guiding controller board |
| Control Function | Automatic lateral web positioning |
| Typical Supply | 24 V DC |
| System Compatibility | Erhardt+Leimer web guiding systems |
| Control Interface | Sensor and actuator connections |
| Mounting | Industrial control cabinet or equipment panel |
Key benefits: Accurate web positioning, compatibility with Erhardt+Leimer systems, compact board design, dependable industrial operation, and simplified maintenance
Typical applications: Film converting, paper processing, printing presses, textile machinery, foil production, coating lines, and nonwoven web handling
Lifecycle: New product; service life depends on operating conditions, installation quality, and system maintenance
Confirm the complete system—not only the model number
Industrial components can differ by series, firmware, voltage, network, terminal base, memory, accessories and approvals. A matching front label does not by itself guarantee a drop-in replacement.
Send the existing system or application information when compatibility matters.
State quantity, preferred condition, destination and required delivery date.
Include a clear nameplate photo when the revision is uncertain.
Know what is being quoted
The offered condition and inspection scope should be written into the quotation. Do not assume every source uses condition terms in the same way.
New product
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Unused surplus
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Refurbished product
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Used product
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Technical references
Manufacturer documentation should be used for engineering, installation, safety and certification decisions. This page supports identification and sourcing; it does not replace the manufacturer manual.
Common product questions
Find answers about product identification, compatibility, condition options and quotation requirements.
How can I identify the correct product?
Check the complete part number, series, revision and product label before requesting a quotation.
How should compatibility be confirmed?
Compare the electrical specifications, communication requirements, accessories and existing system documentation.
Which condition options are available?
Products may be offered as new, surplus, refurbished or used. The quotation will state the supplied condition.
What information is needed for a quotation?
Provide the part number, quantity, preferred condition, destination and required delivery date.
Send the part number and receive a clear quotation.
Include quantity, acceptable condition, destination and timing. A label photo helps verify the request.

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