Engineered for multi‑condition material research, this dual‑range air‑cooled MAO rectifier supplies two switchable output profiles to handle diverse micro‑arc oxidation tests on aluminium, titanium and magnesium alloy samples.
Dual‑Range Air‑Cooled MAO Rectifier caters to material laboratories running varied micro‑arc oxidation experiments that demand multiple current‑voltage working windows. In fact, research teams frequently alternate between high‑voltage low‑current and moderate‑voltage medium‑current test modes to evaluate different coating formation behaviours. Even so, purchasing two separate rectifier devices increases equipment cost and occupies extra bench‑top workspace; consequently, lab budgets and bench space become restricted for multi‑group sample testing.
Rated for dual output specifications 30A 750V and 15A 250V, this dual‑range air‑cooled MAO rectifier adopts flexible‑mode IGBT pulse conversion architecture optimised for multi‑profile MAO lab workflows. Operators toggle between two preset output ranges and fine‑tune pulse frequency as well as duty cycle via local control panel to match varied alloy substrates and target coating properties. After lab staff complete wiring and electrolytic cell setup, researchers switch operating ranges quickly without hardware re‑wiring when moving between different test batches. Meanwhile, multi‑layer safety protection together with intelligent arc‑suppression responds rapidly against harsh spark surges, and this protective feature safeguards test specimens and internal circuit components during frequent mode‑switching experimental cycles.
This dual‑range air‑cooled MAO rectifier applies high‑adaptability IGBT pulse conversion hardware, and operational efficiency maintains above 86% under alternating‑mode laboratory test load. Unlike single‑output dedicated rectifier units, this integrated dual‑range design merges two working windows within one cabinet; therefore, research labs cut equipment investment and save valuable bench‑top workspace.
Fast‑acting closed‑loop feedback offsets subtle electrolyte impedance changes while ceramic coatings develop on alloy sample surfaces. As a result, test coupons reduce burn‑related defects across both operating ranges, and R&D teams gather consistent comparative data for cross‑condition MAO formula exploration. What is more, onboard memory stores multiple groups of parameter presets for each output range, and operators can load corresponding test profiles instantly rather than manually reconfiguring every time they switch test conditions.
Optimised for frequent‑switch MAO laboratory environments, internal power circuits keep output ripple tightly controlled under both working ranges. Accordingly, it provides reliable pulse energy to produce dense, wear‑resistant ceramic protective layers for diverse aluminium, titanium and magnesium alloy test pieces.
| Parameter Category | Specific Item | Specification |
|---|---|---|
| Input Parameters | AC Input Power Supply | Three‑phase AC 380V, ±10% tolerance, 50‑60Hz |
| DC Output Parameters | Output Range 1 | 0‑30A, 0‑750V adjustable |
| DC Output Parameters | Output Range 2 | 0‑15A, 0‑250V adjustable |
| DC Output Parameters | Rated Total Output Power | 22.5kW / 3.75kW (range‑dependent) |
| DC Output Parameters | Voltage Regulation Accuracy | ≤1% |
| DC Output Parameters | Current Regulation Accuracy | ≤1% |
| DC Output Parameters | Ripple Factor | ≤1% |
| Control and Automation Functions | Operating Modes | Constant Current, Constant Voltage, pulse mode |
| Control and Automation Functions | Pulse Settings | Frequency 100‑3000Hz, duty cycle 5‑100% stepless adjustable |
| Control and Automation Functions | Auxiliary Hardware | Local control panel, multi‑range parameter storage, experimental‑data log recorder |
| Control and Automation Functions | Programming Features | Parameter recall, output limit lock, historical alarm storage |
| Physical and Communication Parameters | Cooling Method | Air‑cooled |
| Physical and Communication Parameters | Protection Class | IP20 for indoor laboratory environment |
| Physical and Communication Parameters | Communication Interface | RS485 Modbus RTU |
| Physical and Communication Parameters | Operating Efficiency | Above 86% |
The product comes with a one‑year warranty and boasts a service life of over 10 years. It supports both Constant Current and Constant Voltage modes, and it also includes a programmable ramp‑up function for current or voltage settings. For time‑sensitive applications, you can use the timed operation mode. Moreover, the multi‑segment function allows you to vary constant current or voltage levels over time. The device further offers an RS485 communication interface, automatic polarity reversal, and a minute‑level timing function. If you need customization, please contact us for further details.
This dual‑range air‑cooled MAO rectifier fits university material‑science labs, enterprise R&D innovation centres and multi‑specimen surface‑modification research projects. For instance, it conducts micro‑arc oxidation processing for titanium, magnesium and aluminium alloy test coupons under high‑voltage and medium‑voltage working conditions, to analyse coating hardness, corrosion‑resistance and anti‑wear performance.
Additionally, it works as multi‑mode test power hardware for research teams exploring multi‑parameter MAO process development. Apart from regular sample processing, it supports cross‑range contrast experiments and process feasibility verification, supplying valid experimental records for academic outputs and project iteration.
We specialise in developing multi‑range bench‑top pulse rectifier hardware built for complex variable‑condition MAO laboratory research scenarios. Most importantly, every finished unit completes dual‑range waveform calibration and full‑load ageing testing before shipment, securing stable performance under both 30A 750V and 15A 250V working modes throughout repeated test cycles.
Furthermore, we provide customisable adjustments for pulse‑parameter boundaries, control‑panel functions and communication protocols to satisfy diverse laboratory research demands. Backed by remote technical support and stable spare‑parts supply, we deliver trustworthy rectifier solutions for your multi‑condition lightweight‑alloy surface‑modification research.
A: Products with the same nominal specifications often serve different industries, and they may carry different detailed parameter requirements. These differences directly affect production costs and technical solutions, so final prices will vary accordingly. For this reason, we recommend you contact us directly to receive a precise and tailored quotation.
A: We assign specialized consultants to support each industry sector. If you need further information, simply reach out to us. After we confirm your request, we will immediately send you the full technical datasheets and product images you need.
A: We focus on custom non-standard industrial power supplies, so we can fully adjust output current and voltage to match your exact needs. The products shown on our website only represent part of our actual range, as we do not list every model online. If you cannot find your desired specifications, please contact us directly. We will work with you to confirm your exact requirements, or we can guide you to select the most suitable parameters based on your industry standards. We will provide complete technical specifications and dimension drawings so you can fully understand the product.
