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CKDJII Series
Introduction to CKDJII Series Angular Stroke Intelligent Electric Actuator
The CKDJII Series Angular Stroke Intelligent Electric Actuator is a cost-effective, high-performance quarter-turn electric actuator independently developed and manufactured by Yangzhou Hengchun Electronics Co., Ltd., a professional China-based manufacturer of industrial valve automation equipment.
Engineered for precise rotary control of butterfly valves, ball valves, plug valves and damper baffles, this intelligent electric actuator delivers a standard rotation range of 0–90°, customizable up to 90°–300° for special valve applications. It is widely deployed across demanding industrial sectors including power generation, petrochemical, oil & gas, metallurgy, water treatment, municipal engineering and HVAC.
At its core, the CKDJII actuator integrates an industrial-grade microprocessor with non-intrusive infrared remote control technology, enabling parameter configuration and fault diagnosis without opening the enclosure — a critical safety feature in hazardous and explosive environments. Its robust bronze-alloy worm gear transmission, combined with a corrosion-resistant aluminum alloy housing rated to IP68, ensures long-term reliability in harsh conditions with frequent start-stop operations.CKDJII
Available in both on-off (S2 duty) and regulating/modulating (S4/S5 duty) configurations, the CKDJII series supports seamless integration with DCS and PLC control systems via hardwiring, analog signals (4–20mA), and industrial fieldbus protocols including Modbus, Profibus-DP, Foundation Fieldbus (FF) and HART.

| Feature | Benefit |
|---|---|
| Precise position control | Industrial-grade microprocessor chip delivers accurate valve positioning for demanding automation loops |
| Multi-protocol fieldbus support | Native compatibility with Modbus, Profibus-DP, FF and HART for plug-and-play DCS/PLC integration |
| Non-intrusive infrared setup | Configure parameters and diagnose faults without opening the cover — safe for explosive zones |
| Heavy-duty transmission | Bronze alloy worm gear + alloy steel worm; self-locking at all speeds, ideal for frequent cycling |
| Manual-electric switchover | One-click clutch mechanism for emergency manual operation without power |
| IP68 corrosion-proof housing IP68 | Cast aluminum alloy with pickling/phosphating + electrostatic powder coating; stainless steel bolts |
| ATEX explosion-proof ATEX | Certified ratings: Ex d IIB T4 Gb, Ex db IIC T4 Gb, Ex tb IIIC T130°C Db:Ex d IIB T4 Gb、Ex db IIC T4 Gb、Ex tb IIIC T130°C Db |
| Wide torque range | 40–2000 N·m direct-mount torque; 0–90° standard, up to 300° optional output angle40–2000 |
| Maintenance-free design | Lifetime lubricating oil + double-sealed control compartment = low total cost of ownership |
| Parameter | Specification |
|---|---|
| Power supply | AC 220V / AC 380V (50/60Hz); three-phase up to 690V; single-phase optional |
| Output torque | 40–2000 N·m (direct installation) |
| Rotation angle | 0–90° standard; 90°–300° customizable |
| Control type | Hardwiring, analog signal (4–20mA), fieldbus (Modbus, FF, HART, Profibus-DP)、(Modbus、FF、HART、Profibus-DP) |
| Housing material | Cast aluminum alloy |
| Protection rating | IP68 standard; customizable IP68 |
| Ambient temperature | Standard: -30°C ~ +70°C; High-temp: -30°C ~ +150°C (split type); Low-temp: -50°C ~ +70°C |
| Corrosion protection | Pickling + phosphating + electrostatic powder coating; marine/chemical-grade options; stainless steel bolts |
| Double seal | Control compartment isolated from junction box to protect electronics |
| Explosion-proof rating | Ex d IIB T4 Gb / Ex db IIC T4 Gb / Ex tb IIIC T130°C Db |
| Motor | Totally enclosed fan-cooled AC squirrel-cage motor; insulation Class F (H optional); built-in thermal protection; sealed ball bearings; VFD option (1:100 / 1:1000 speed range) |
| Duty cycle | S2 (on-off, 15min) / S4 (periodic starting) / S5-50% (modulating, up to 1200 starts/hour) |
| Gear drive | Self-locking at all speeds |
| Handwheel | Auto-clutch, non-rotating during electric operation; conforms to GB/T 28270 |
| Output flange | ISO 5210 / GB 12222; special flanges optionalISO 5210 / GB 12222 |
| Lubrication | Lifetime-effective, no periodic maintenance |
| Cable entries | Standard: 1×M48×2 + 2×M33×2; Explosion-proof: 1×NPT1.5" + 2×NPT1"; customizable |
| Configuration | Infrared / pressure communication (Bluetooth optional); non-volatile memory with password protection |
| Local contrl | Tool-free knob; Local/Remote/Stop selection; electric operation in local mode |
| Certifications | EU 2004/08/EC (EMC), 2006/95/EC (LVD), EN 61000 harmonized standards |
| Warranty | 18 months whole machine; 24 months core components (motor, controller); lifetime maintenance |
| Model | Rated Torque (Nm) | Travel Time (s) | Motor Power (W) | Rated Current (A) | Flange (ISO 5210) |
|---|---|---|---|---|---|
| CKDJII5 | 50 | 25 | 45 | 0.4 | |
| CKDJII10 | 100 | 25 | 45 | 0.4 | |
| CKDJII20 | 200 | 25 | 45 | 0.4 | |
| CKDJII20 | 120 | 15 | 45 | 0.4 | |
| CKDJII20 | 80 | 7.5 | 45 | 0.45 | |
| CKDJII30 | 300 | 30 | 60 | 0.6 | |
| CKDJII40 | 400 | 30 | 60 | 0.65 | |
| CKDJII50 | 500 | 30 | 90 | 0.7 | |
| CKDJII50 | 380 | 15 | 90 | 0.7 | |
| CKDJII50 | 170 | 5 | 120 | 0.8 | |
| CKDJII60 | 600 | 30 | 140 | 1 | |
| CKDJII80 | 700 | 30 | 140 | 1.2 | |
| CKDJII80 | 600 | 15 | 140 | 1.4 | |
| CKDJII100 | 900 | 30 | 180 | 1.4 | |
| CKDJII100 | 700 | 15 | 180 | 1.6 | |
| CKDJII100 | 400 | 5 | 180 | 1.8 |
| Model | Rated Torque (Nm) | Max Torque (Nm) | Travel Time (s) | Motor Power (W) | Rated Current (A) | Flange (ISO 5210) |
|---|---|---|---|---|---|---|
| CKDJII5 | 30 | 50 | 25 | 45 | 0.4 | |
| CKDJII10 | 50 | 100 | 25 | 45 | 0.4 | |
| CKDJII20 | 100 | 200 | 25 | 45 | 0.4 | |
| CKDJII20 | 60 | 120 | 15 | 45 | 0.4 | |
| CKDJII20 | 50 | 80 | 7.5 | 45 | 0.45 | |
| CKDJII30 | 150 | 300 | 30 | 60 | 0.6 | |
| CKDJII40 | 200 | 400 | 30 | 60 | 0.65 | |
| CKDJII50 | 250 | 500 | 30 | 90 | 0.7 | |
| CKDJII50 | 200 | 380 | 15 | 90 | 0.7 | |
| CKDJII60 | 300 | 600 | 30 | 140 | 1 | |
| CKDJII80 | 400 | 700 | 30 | 140 | 1.2 | |
| CKDJII80 | 300 | 600 | 15 | 140 | 1.4 | |
| CKDJII100 | 500 | 900 | 30 | 180 | 1.4 | |
| CKDJII100 | 350 | 700 | 15 | 180 | 1.6 |
| Model | Rated Torque (Nm) | Travel Time (s) | Motor Power (W) | Rated Current (A) | Flange (ISO 5210) |
|---|---|---|---|---|---|
| CKDJII10 | 80 | 25 | 45 | 0.5 | |
| CKDJII20 | 100 | 25 | 45 | 0.7 | |
| CKDJII20 | 100 | 15 | 45 | 0.9 | |
| CKDJII40 | 200 | 30 | 90 | 1.2 | |
| CKDJII50 | 200 | 30 | 90 | 1.4 | |
| CKDJII50 | 230 | 15 | 90 | 1.4 | |
| CKDJII60 | 400 | 30 | 140 | 1.6 | |
| CKDJII80 | 500 | 30 | 140 | 2 | |
| CKDJII80 | 400 | 15 | 140 | 1.8 | |
| CKDJII100 | 750 | 30 | 180 | 2.4 | |
| CKDJII100 | 550 | 15 | 180 | 2.7 |
| Model | Rated Torque (Nm) | Max Torque (Nm) | Travel Time (s) | Motor Power (W) | Rated Current (A) | Flange (ISO 5210) |
|---|---|---|---|---|---|---|
| CKDJII10 | 40 | 80 | 25 | 45 | 0.5 | |
| CKDJII20 | 50 | 100 | 25 | 45 | 0.7 | |
| CKDJII20 | 50 | 100 | 15 | 45 | 0.9 | |
| CKDJII40 | 100 | 200 | 30 | 90 | 1.2 | |
| CKDJII50 | 130 | 200 | 30 | 90 | 1.4 | |
| CKDJII50 | 120 | 230 | 15 | 90 | 1.4 | |
| CKDJII60 | 200 | 400 | 30 | 140 | 1.6 | |
| CKDJII80 | 250 | 500 | 30 | 140 | 2 | |
| CKDJII80 | 200 | 400 | 15 | 140 | 1.8 | |
| CKDJII100 | 400 | 750 | 30 | 180 | 2.4 | |
| CKDJII100 | 300 | 550 | 15 | 180 | 2.7 |
The CKDJII Series Angular Stroke Intelligent Electric Actuator adheres to strict manufacturing and quality control standards. Its core transmission components adopt bronze alloy and alloy steel for wear resistance and self-locking performance at all speeds; the control section and junction box are isolated with double seal protection to safeguard electronic components. All end cover fastening bolts use stainless steel for enhanced corrosion resistance.
The product fully complies with EU 2004/08/EC (Electromagnetic Compatibility Directive) and 2006/95/EC (Low Voltage Directive), as well as EN 61000 harmonized standards.
Valve and damper control for boiler feed water, steam pipelines, and flue gas desulfurization (FGD) & denitrification (SCR) systems in thermal and hydropower plants.
Automatic on-off and regulation of butterfly valves and ball valves in crude oil transportation, refining units, LPG storage terminals, and natural gas distribution pipelines.
Damper actuation for blast furnace air supply, steel rolling cooling water circuits, and dust removal system gas pipelines.
Valve regulation in municipal water supply/drainage, sewage treatment plant aeration/sedimentation systems, and waste-to-energy power generation flue gas treatment.
Remote control of valves for urban district heating networks, gas supply networks, and water conservancy hub sluices.
Corrosion-resistant valve automation for chemical reactors, solvent pipelines, and acid/alkali transfer systems.
Provide detailed valve parameters (type, required torque), working condition parameters (pressure, temperature) and control requirements (signal type, feedback needs) to our professional team, and we will offer free one-to-one model selection guidance.
We provide free installation videos and remote technical guidance for all customers; on-site installation guidance is available for bulk purchases (travel expenses borne by the purchaser).
Standard CKDJII Series models are delivered within 28-30 working days; customized models (special temperature/explosion-proof/control requirements) have a delivery time of 30-45 working days.
Contact our engineering team for model selection, custom configurations, and bulk pricing.
Response within 24 hours.
