SJ-E204L Bar-Type Static Eliminator by Keyence – Small Flow Ionizer for Wide Production Lines
The Keyence SJ-E204L is a bar-type static eliminator from the SJ-E series. It uses a corona discharge method with pulse AC voltage. This small flow model delivers stable ion balance across a very long range.
The SJ-E204L suits wide film, sheet, and web lines. It has 33 electrodes and an effective length of 2120 mm. The Hi-Power I.C.C. method keeps ion balance at ±30 V. This helps protect sensitive static targets.
The unit is a shockless resistive coupling type. It applies ±8000 V through a pulsed AC method. The body uses ABS, PBT, PP, LCP, PPS, SPS, and SUS materials. The electrode probes are tungsten for long life.
Technical Specifications
| Brand | Keyence |
| Model | SJ-E204L |
| Series | SJ-E series |
| Product Type | Bar-type static eliminator, small flow model |
| Ion Generation | Corona discharge |
| Structure | Shockless resistive coupling type |
| Voltage Application | Pulse AC method, ±8000 V |
| Ion Balance Control | Hi-Power I.C.C. method |
| Ion Balance | ±30 V at 300 mm or more, 0.2 MPa air pressure |
| Installation Distance | 50 to 2000 mm |
| Number of Electrodes | 33 |
| Effective Length | 2120 mm at 50 mm static elimination range |
| Total Length | 2000 mm |
| Built-in Ports | None |
| Protocols | Remote control communication |
| Communication Expansion | None |
| Supply Voltage | 24 to 36 VDC ±10% |
| Current Consumption | 700 mA at 24 V, 500 mA at 36 V |
| Output Type | NPN open collector: ion level warning, condition warning, alarm output |
| Control Input | Static elimination stop input, NPN open collector or contact point |
| Control Output | NPN open collector, 100 mA max, 40 VDC or less |
| Air Connection Port | Rc 1/8 |
| Air Supply Pressure | 0.1 to 0.5 MPa, recommended 0.2 MPa |
| Overvoltage Category | I |
| Pollution Degree | 2 |
| Operating Temperature | 0 to +40 °C |
| Relative Humidity | 35 to 85 % RH, no condensation |
| Protection Rating | Not available |
| Dimensions | Not available, total length 2000 mm |
| Weight | 2.10 kg |
| Electrode Probe Material | Tungsten |
| Main Body Material | ABS / PBT / PP / LCP / PPS / SPS / SUS |
| Lifecycle | Active, official Keyence production status confirmed |
Installation Guide
- Mount the bar at 50 to 2000 mm from the target.
- Use Rc 1/8 air connection for clean ion flow.
- Set air pressure to 0.2 MPa for best balance.
- Keep the bar dry and free from condensation.
- Connect 24 to 36 VDC power with correct polarity.
- Wire NPN output to the machine controller.
Setup and Maintenance
- Clean tungsten electrodes with a soft brush.
- Check ion balance after long runs.
- Use remote control communication for status checks.
- Replace worn bars only with SJ-E series parts.
- Verify alarm output during routine service.
Compatibility Notes
- Works with Keyence SJ-E series controllers.
- Supports NPN open collector control input.
- Remote control communication fits standard factory lines.
- No built-in ports or expansion modules.
- Best for wide web, film, and sheet equipment.
Certifications and Packaging
- Official Keyence production status confirmed.
- Overvoltage category I, pollution degree 2.
- Packaging includes one SJ-E204L bar unit.
- Accessories depend on order configuration.
- Ships by FedEx, UPS, or DHL.
- 12-month warranty included.
Typical Applications
- Film and sheet static removal
- Web converting lines
- Packaging machines
- Printing and coating equipment
- Plastic molding lines
- Wide production zones with sensitive parts
Diagnostic Capabilities
- Ion level warning output
- Condition warning output
- Alarm output via NPN open collector
- Static elimination stop input
- Remote control communication for monitoring
Why Buy From Oiltech Controls?
- More than 15 years in industrial automation spare parts.
- Global shipment support to many regions.
- Tested industrial surplus and refurbished options.
- 12-month warranty on covered items.
- Technical verification before shipment.
- Support for obsolete control systems.
FAQ
- Q: What is the model?
A: The model is SJ-E204L. - Q: What brand makes it?
A: It is made by Keyence. - Q: What is the ion balance?
A: It is ±30 V at 300 mm or more. - Q: What is the installation distance?
A: It is 50 to 2000 mm. - Q: What is the warranty?
A: It comes with a 12-month warranty. - Q: How does it ship?
A: We ship by FedEx, UPS, or DHL.
Contact us at info@oiltechcontrols.com or +86 158 8020 0923 for stock, lead time, and technical support.
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