Specifications & Products

Next-Gen IGBT Switching Rectifiers

Loni's certified knowledge-based power solutions supply unmatched DC current stability, active filtering, and advanced microprocessors to maximize industrial throughput.

Smart Engineering Toolkit

Smart Amperage Calculator & Rectifier Selector

Specify your electrochemical process variables to automatically calculate required amperage and identify the optimal rectifier model.

Plating & Electrochemical Parameters

Requires extreme current densities and amperages for durable industrial coatings.

dm²
1 dm²50 dm²100 dm²
pcs
1 pc25 pcs50 pcs
A/dm²
0.5 A/dm²25 A/dm²50 A/dm²

Standard plating current formula: Total workpiece surface area (dm²) × Process current density (A/dm²) = Total required amperage (A). Calculated estimates are technical guides; we recommend securing a rectifier with 20% safety margin.

Technical Calculation Output

Results & Recommendation

Total Calculated Amperage Required
1,500A
Total Surface Area: 50 dm² • at 30 A/dm²
Recommended OptionSPR2015AD

2000A Switching Rectifier

Designed for active industrial electroplating lines, aluminum anodizing, and medium copper electrowinning with...

Full power coverage & superior efficiency
Loni Standard Product Line

Smart IGBT Pulse Rectifiers

Detailed specifications of our 4 flagship models

RUNNING
LONI IGBT • SPR1015AD
3-PHASE
LONI POWER SYSTEM
DIGITAL CONTROL
1,000A
VOLTAGE: 0 to 15 VDC● PULSE DC ACTIVE
+ POS
- NEG
Output 0 to 15 VDC
SPR1015AD1,000A Industrial

1000A Switching Rectifier

Ideal for medium electroplating plants, research labs, precious metal coating, nickel, copper, and electrochemical processes requiring pulse output and high current stability.

IGBT Pulse Switching Technology
Continuous Power 7.5 kW / Max Power 15 kW
±1% Regulation Accuracy & 15 ~ 20 kHz Frequency
Full OVP / OCP / OTP Protection with 1 Year Warranty & 5 Years Support
Cooling System
Air Cooled with auto thermal regulation
Control Accuracy
Proprietary Microprocessor Controller / Digital V & A
Output Stability
Pulse Output - Efficiency >92%
RUNNING
LONI IGBT • SPR2015AD
3-PHASE
LONI POWER SYSTEM
DIGITAL CONTROL
2,000A
VOLTAGE: 0 to 15 VDC● PULSE DC ACTIVE
+ POS
- NEG
Output 0 to 15 VDC
SPR2015AD2,000A Industrial

2000A Switching Rectifier

Designed for active industrial electroplating lines, aluminum anodizing, and medium copper electrowinning with 24/7 continuous operation.

IGBT Switching Technology with >92% Efficiency
Continuous Power 15 kW / Max Power 30 kW
Proprietary Loni Microprocessor Controller & Digital Display
Heavy-Duty Enclosure, Auto Air Cooling & OVP/OCP/OTP Protections
Cooling System
Air Cooled with auto thermal regulation
Control Accuracy
Proprietary Microprocessor Controller / Digital V & A
Output Stability
Pulse Output - Efficiency >92%
RUNNING
LONI IGBT • SPR3015AD
3-PHASE
LONI POWER SYSTEM
DIGITAL CONTROL
3,000A
VOLTAGE: 0 to 15 VDC● PULSE DC ACTIVE
+ POS
- NEG
Output 0 to 15 VDC
SPR3015AD3,000A Industrial

3000A Switching Rectifier

Loni's most popular industrial rectifier in copper and zinc plants, hard chrome plating, heavy electric degreasing, and continuous galvanization industries.

Continuous Power 22.5 kW / Max Power 45 kW
IGBT Pulse Switching Technology with ±1% Precision
Proprietary Microprocessor Controller / Digital V & A Display
Auto Air Cooled System & Triple OVP / OCP / OTP Protection
Cooling System
Air Cooled with auto thermal regulation
Control Accuracy
Proprietary Microprocessor Controller / Digital V & A
Output Stability
Pulse Output - Efficiency >92%
RUNNING
LONI IGBT • SPR4015AD
3-PHASE
LONI POWER SYSTEM
DIGITAL CONTROL
4,000A
VOLTAGE: 0 to 15 VDC● PULSE DC ACTIVE
+ POS
- NEG
Output 0 to 15 VDC
SPR4015AD4,000A Industrial

4000A Switching Rectifier

Loni's flagship of raw power and precision; for heavy metallurgy, copper extraction (Electrowinning), electrolysis, and heavy hard chrome plating.

Continuous Power 30 kW / Max Power 60 kW
IGBT Pulse Switching Technology with 15 ~ 20 kHz Frequency
Proprietary Loni Microprocessor Controller & Digital Display
1 Year Warranty + 5 Years Guaranteed After-Sales Support
Cooling System
Air Cooled with auto thermal regulation
Control Accuracy
Proprietary Microprocessor Controller / Digital V & A
Output Stability
Pulse Output - Efficiency >92%

Technical Comparison Matrix

Comprehensive technical specs for 1000A, 2000A, 3000A, and 4000A rectifiers

Specification / Attribute
SPR1015AD
1000 Amps
SPR2015AD
2000 Amps
SPR3015AD
3000 Amps
SPR4015AD
4000 Amps
ModelSPR1015ADSPR2015ADSPR3015ADSPR4015AD
Output Current1000 Amps2000 Amps3000 Amps4000 Amps
Output Voltage0 - 15 VDC0 - 15 VDC0 - 15 VDC0 - 15 VDC
Continuous Power7.5 kW15 kW22.5 kW30 kW
Maximum Power15 kW30 kW45 kW60 kW
Output TypePulsePulsePulsePulse
TechnologyIGBT SwitchingIGBT SwitchingIGBT SwitchingIGBT Switching
Regulation Accuracy± 1%± 1%± 1%± 1%
EfficiencyOver 92%Over 92%Over 92%Over 92%
Switching Frequency15 ~ 20 kHz15 ~ 20 kHz15 ~ 20 kHz15 ~ 20 kHz
Cooling SystemAir Cooled with auto thermal regulationAir Cooled with auto thermal regulationAir Cooled with auto thermal regulationAir Cooled with auto thermal regulation
DisplayProprietary Controller / Digital V & AProprietary Controller / Digital V & AProprietary Controller / Digital V & AProprietary Controller / Digital V & A
Protections
OVP / OCP / OTP
OVP / OCP / OTP
OVP / OCP / OTP
OVP / OCP / OTP
Input Voltage380V 3-Phase380V 3-Phase380V 3-Phase380V 3-Phase
Warranty & Support1 Year Warranty + 5 Yrs Support1 Year Warranty + 5 Yrs Support1 Year Warranty + 5 Yrs Support1 Year Warranty + 5 Yrs Support
Industrial Knowledge Hub

Complete Guide to Industrial Switching Rectifiers

Find answers regarding pricing, efficiency, and industrial applications of modern IGBT-based high-frequency switching rectifiers.

1. What is a switching rectifier and how does it compare to thyristors?

A switching rectifier utilizes high-frequency IGBT transistors (typically above 20kHz) to generate smooth DC outputs with extreme current stability. Compared to older transformers, they offer up to 30% electrical energy savings, are lighter, and support precise digital microchip calibration with proprietary control boards.

2. What factors determine switching rectifier pricing?

Primary factors include the output current capability (from 1000A up to 4000A), voltage stability margin, embedded proprietary control boards, high-frequency transformer quality, and specialized acid-resistant anti-corrosive chassis enclosures.

3. What are the benefits of IGBT pulse rectifiers in plating lines?

High-frequency pulse rectifiers avoid surface defects and edge-burning on cathode items during chrome, nickel, and decorative electroplating. The variable pulse duty cycle improves deposit density, coating uniformity, and overall layer hardness.

4. What is the advantage of pulse output in hard chrome and anodizing?

High switching frequency and pulse waveform minimize micro-cracks, significantly improve adhesion strength, and reduce total plating process times by up to 20%.

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Free Technical Consultation

Find the perfect rectifier for your process

Our technical experts are ready to suggest the most suitable rectifier based on your industrial process and calculated amperage requirements.

Factory Address:
Phase 2, Molavi 3rd St, Plot 80, Qarchak Industrial Zone, Tehran, Iran

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