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Ra Tester MR-RT25D is a high-precision, portable device for fast and accurate Ra value measurement. This handheld Ra Tester is ideal for shop floor use, on-site inspections, and quality control in manufacturing. It supports multiple surface roughness parameters, including Ra, ensuring reliable surface finish testing across various materials. Easy to operate and built for durability, the MR-RT25D is the perfect portable roughness gauge for professionals.
Original price was: ₹200,000.00.₹175,000.00Current price is: ₹175,000.00. + 18% GST extra
The Ra Tester MR-RT25D is a compact, high-precision surface roughness tester engineered for industrial environments. Designed for accurate Ra value measurement of machined components, this device evaluates surface textures according to national and international standards. With advanced features like a 3.5-inch OLED display, Bluetooth printing, and mobile app support, this Ra Tester ensures fast, efficient, and reliable surface finish assessments across various applications.
Key Features of Ra Tester MR-RT25D
All-in-One Electromechanical Design: Integrates display, sensor, and driver unit for compactness and portability.
Multi-Parameter Measurement: Supports Ra, Rz, Rq, Rt, Rp, Rv, R3z, R3y, Rz(JIS), Rs, Rsk, Rsm, Rku, Rc, Ry, Rmax, Rmr, RPc, Rk, Rpk, Rvk, Mr1, Mr2.
Graphical Surface Profile Display: Shows primary profiles, assessed roughness curves, and load curves for detailed surface texture analysis.
Wide Measuring Range (Up to 320µm): Covers diverse industrial surface roughness testing needs.
High-Resolution OLED Display: 3.5-inch color screen (480×320 dot matrix) with adjustable backlight for use in low-light conditions.
Advanced Filtering Options: Includes Gauss, RC, PC-RC, and D-P filters for precise data filtering.
Powerful DSP Processor: Ensures high-speed data processing with minimal power consumption.
Long Battery Life: 3000mAh lithium-ion battery provides 50+ hours of continuous operation.
Battery Status Display: Real-time graphical indicator for battery level and charging status.
Internal Data Storage: Stores up to 100 measurement items and surface profiles for future analysis.
This Ra surface roughness tester is ideal for engineers, inspectors, and quality control professionals who need fast and accurate roughness measurement in metalworking, manufacturing, and machining operations.
Compact & Portable Design: Lightweight and easy to carry, perfect for mobile and on-site Ra surface roughness measurements.
Integrated Electromechanical System: Combines the display, driver unit, and sensor into one robust structure for seamless operation.
Advanced Multi-Parameter Measurement: Accurately measures over 20 roughness parameters including Ra, Rz, Rq, Rt, Rp, Rv, Rc, and more.
Digital & Graphical Display Output: Results are displayed clearly on a 3.5-inch color OLED screen with high resolution and excellent visibility.
Wide Measuring Range: Handles measurements up to 320µm, making it suitable for various industrial components and materials.
Bluetooth & App Integration: Enables wireless data transfer, Bluetooth printing, and control via a dedicated mobile app.
Real-Time Clock Function: Ensures accurate time-stamped records for organized surface roughness data management.
Power Efficient Operation: Features auto sleep and auto shutdown modes to extend battery life and conserve energy.
Motor Jam Protection: Built-in software safeguards prevent motor malfunction, ensuring safe and reliable testing.
User-Friendly Interface: Intuitive menus, on-screen tips, and real-time measurement prompts simplify operation for all users.
Compliance with Global Standards: Fully compliant with ISO 4287, ANSI B46.1, DIN 4768, and JIS B601 for trusted roughness testing.
PC & Printer Connectivity: Easily connects to computers and printers for quick data transfer and report generation.
Flexible Printing Options: Users can choose to print all or selected roughness parameters based on their reporting needs.
Expandable with Optional Accessories: Supports additional tools like curved surface sensors, small hole probes, extension rods, external printers, and software for enhanced functionality.
| Name | Content |
|---|---|
| Measurement Range | Z Axis (Vertical): 320µm (-160µm~160µm) / 12600μin (-6300μin~+6300μin) |
| X Axis (Horizontal): 17.5mm / 0.69″ | |
| Resolution Ratio | Z Axis (Vertical): |
| – 0.002μm/±20μm | |
| – 0.004μm/±40μm | |
| – 0.008μm/±80μm | |
| – 0.02μm/±160μm | |
| Measurement Item | Parameters: Ra, Rz, Rq, Rt, Rc, Rp, Rv, R3z, R3y, Rz(JIS), Ry, Rs, Rsk, Rku, Rmax, Rsm, Rmr, RPc, Rk, Rpk, Rvk, Mr1, Mr2 |
| Standard | ISO4287, ANSI B46.1, DIN4768, JIS B601 |
| Graphic | Primary profile, Roughness profile, Load curves |
| Filter | RC, PC-RC, Gauss, D-P |
| LCD Dimensions | 3.5-inch, 480 × 320 |
| Sampling Length (lr) | 0.25mm, 0.8mm, 2.5mm |
| Assessment Length (ln) | Ln = lr × n, where n = 1~5 |
| Sensor | Principle: The displacement differential inductance |
| Stylus: Natural Diamond, 90° cone angle, 5µm tip radius | |
| Force | < 4mN |
| Skid | Ruby, Longitudinal radius: 40mm |
| Traversing Speed | lr=0.25mm: Vt=0.135mm/s |
| lr=0.8mm: Vt=0.5mm/s | |
| lr=2.5mm: Vt=1mm/s | |
| Return: Vt=1mm/s | |
| Accuracy | ±(5nm + 0.1A), where A = Ra of calibration test block |
| Repeatability | No more than 3% |
| Power Supply | Built-in 3.7V Lithium-ion battery, Charger: DC5V, 800mA/3 hours |
| Working Time | More than 50 hours |
| Size (L × W × H) | Display Unit: 158 × 55 × 52mm |
| Drive Unit: 115 × 23 × 27mm | |
| Weight | About 400g |
| Working Environment | Temperature: -20℃ ~ 40℃ |
| Humidity: < 90% RH | |
| Storage and Transportation | Temperature: -40℃ ~ 60℃ |
| Humidity: < 90% RH |
| Model | Description |
|---|---|
| MR-55 | Extension rod used to extend the sensor length when testing deep holes (55mm). |
| MR-90 | Right-angle measuring mechanism. |
| MR-100 | Standard sensor for plane, shaft, and inner surface of holes >6mm, depth <22mm. |
| MR-120 | Small hole sensor for cylindrical, plane, and inner surface of holes >2mm, depth <9mm. |
| MR-110 | Sensor for curved surfaces and planes, cylindrical surfaces with curvature radius >3mm. |
| MR-131 | Sensor for deep grooves, cylindrical and plane surfaces, groove width >3mm, depth <10mm. |
| MR-520 | Metal (Aluminum) working platform with elevating mechanism, providing convenience and stability during tests. |
| MR-620 | Marble substrate working platform with elevating mechanism, V-groove, and high accuracy for tiny workpieces. |
| Roughness Comparison Block | High-quality surface roughness comparison block, anti-rust treated, includes 27 comparison blocks per set. |
| Mini Printer | External printer for convenient printing of test results. |
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