The Keyence SJ-E228H belongs to the SJ-E series of bar-type static eliminators. This high-end model addresses static electricity issues across wide manufacturing areas. Its 2240 mm total length and 73 electrode probes make it suitable for large-scale production equipment. Specifically, the device uses a pulse AC corona discharge method with ±8000 V applied voltage. This design generates abundant ions for rapid static decay.
The SJ-E228H operates on a shockless resistive coupling structure. This construction enhances operator safety during operation. Meanwhile, the Hi-Power I.C.C. method continuously monitors and adjusts ion output. As a result, the ion balance remains within ±30 V under standard measurement conditions. Furthermore, the effective static elimination range reaches 2340 mm when the installation distance is 50 mm. The unit supports installation distances from 50 mm to 2000 mm, offering flexibility for different machine layouts.
Power requirements for the Keyence SJ-E228H are flexible. The unit accepts 24 to 36 VDC ±10% input. Current consumption is 700 mA at 24 V or 500 mA at 36 V. For integration, the device provides NPN open collector outputs for ion level warning, condition warning, and alarm signals. Additionally, a static elimination stop input allows external control via NPN open collector or dry contact. The unit also supports remote control communication for parameter adjustments. An Rc 1/8 air connection port enables compressed air supply at 0.1 to 0.5 MPa, with 0.2 MPa recommended.
The electrode probes use tungsten material for durability and stable ion emission. The main body consists of ABS, PBT, PP, LCP, PPS, SPS, and SUS. This combination balances structural rigidity with chemical resistance. Operating temperature ranges from 0 to +40 °C, while relative humidity must stay between 35 and 85 % RH without condensation. The unit weighs 2.35 kg. No specific IP protection rating is assigned to this model.
First, mount the SJ-E228H at the planned location using appropriate brackets. Maintain an installation distance between 50 mm and 2000 mm from the target surface. Next, connect the 24–36 VDC power supply according to the wiring diagram. Then, wire the control input and output signals to the host controller. For air-assisted operation, attach the Rc 1/8 fitting and set the supply pressure to 0.2 MPa. Finally, verify the ion balance using a charged plate monitor before starting production.
Keyence SJ-E228H Bar-Type Ionizer × 1
Installation Bracket Set × 1
Operation Manual × 1
Q1: What is the effective length of the SJ-E228H?
The effective static elimination range is 2340 mm when measured at a 50 mm installation distance.
Q2: Does this ionizer require compressed air to operate?
No, the SJ-E228H can eliminate static without air supply. However, air assistance at 0.1–0.5 MPa improves ion delivery to distant targets.
Q3: What electrode material does the SJ-E228H use?
This model uses tungsten electrode probes. Tungsten offers excellent durability and stable ion emission over extended use.
Q4: Can I control the SJ-E228H remotely?
Yes, the unit supports remote control communication. It also provides NPN open collector outputs for alarms and a stop input for external control.
Q5: What is the recommended air pressure for the SJ-E228H?
Keyence recommends 0.2 MPa air pressure. The acceptable range is 0.1 MPa to 0.5 MPa.
| Brand Name | |
| Model No. | SJ-E228H |
| Product Type | Bar-Type Static Eliminator |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
