MITECH MH320 Portable universal common Leeb Hardness Tester

Product Overview
MH320 portable Leeb hardness tester is based on Leeb hardness measurement principle, it can be quickly and easily used for on-site testing hardness of metallic materials and support free conversion between Leeb, Brinell, Rockwell hardness and other scales. It uses 128 × 64 dot matrix LCD screen, rich information, intuitive, stable performance and integrated high-speed thermal printer, which enables printing with instant measurement results.It can be widely used in metal processing and manufacturing, special equipment, permanent component failure analysis, inspection and other fields. It is particularly suitable for large parts and non-removable part of the on-site hardness testing. It is to improve production efficiency and pass rate and is a wise choice to save the cost of production.

Technical Specifications

Measuring range:HLD(170~960)HLD
Impact direction: vertically downward, oblique, horizontal, vertical upward, automatically identify
Material: steel and cast steel,cold work tool steel, stainless steel, Grey cast iron,Nodular cast iron, cast aluminum alloys,BRASS(copper-zinc alloys),BRONZE(copper-aluminum/tin alloys),Wrought copper alloys
Hardness Scale:HL,HB,HRB,HRC,HRA,HV,HS
Paper Roll: Width (57.5±0.5)mm, diameter: 30mm, imported paper to ensure long-term data storage
Display:128X64 dots,adjustable backlight
Data memory:500 measurement series.(relative to impact times 32~1)
Battery : 6V,(Ni-MH battery pack)
Power Supply: 9V/500mA
Recharge Time: 2.5~3.5hours
Standby Time: About 150hours (with default brightness)
Communication interface:USB1.1

Features
Based on the principle of Leeb hardness testing theory. It can measure many metallic material
One main unit can match to 6 impact devices
Support Steel ,when using D/DC sensor to test steel,it can show HB directly,no need to check manually.
High-contrast Segment LCD ,easy to use
Software calibration automatically.
500 groups (impact times 32 ~ 1) hardness measurements, each set of data includes single testing value, average value, measurement date / time, impact direction, frequency, material, hardness, and other information.
Built-in Ni-MH , it can work for not less than 150 hours; automatic screen standby, automatic sleep, automatic shutdown and other power-saving features
Real-time display the remaining battery power, charging progress is displayed while charging.
USB interface can do transmission measurements, the measured value storage management, statistical analysis of the measured value, the measured value of the print report and batch set the instrument parameters through the PC data-pro software to meet the higher demand for quality assurance and management.
Small size, portable, stable and reliable performance, suitable for harsh environment field operations, prevent from vibration, shock and electromagnetic interference.
Dimension:212mm×80mm×32mm

Application fields
Die cavity of molds
Bearings and other parts
Failure analysis of pressure vessel, steam generator and other equipment
Heavy work piece
The installed machinery and permanently assembled parts
Testing surface of a small hollow space
Requirements of formal original record for test results
Material identification In the warehouse of metallic materials
Rapid testing in large range and multi-measuring areas for large-scale work piece

Application conditions
Surface temperature can’t be overheat less than 120°
Surface roughness should not to be too large, otherwise it will cause errors. The surface of the work piece must be exposed metallic luster, smoothing and polish without Oil
The specimens with 2-5kg or thin walled specimens overhangs should be supported with some object in order to avoid the specimen deformation ,bending and movement caused by impact for medium-sized work piece ,it shall be placed on a flat and hard surface, the sample must be placed absolutely smoothly,without any shake, for heavy samples more than 5kg, it can be measured dire without any support.
Portable Leeb hardness tester has strict requirements for sample thickness , the minimum thickness shall comply with regulatory a(see instructions).
For work piece with hardened layer on surface,the depth of hardened layer should conform to regulatory
For lighter parts, please make it tightly coupled with support ,two coupled surface layer should must be conform flat and to smooth, the coupling gel should not to be too much. The direction of the test shall be perpendicular to the coupling plate; if the work piece is a large plate, pole or bending material , even the weight and thickness is okay ,it may still cause deformation and instability, resulting in test values error, it should be reinforced or supported at the back of the test points.
Magnetic of work piece should be less than 30 gauss.
For artifact-surface : The work piece surface is preferably flat. When the curvature radius R of measured surface is less than 30mm,the.work pieces should be tested with the small support ring the shaped support rings.

Working Conditions
Working temperature:-10℃~+50℃,
Storage temperature -30℃ ~ + 600℃,
Relative humidity : ≤90%,
The surrounding environment should avoid of vibration, strong magnetic field, corrosive medium and heavy dust.
Impact Devices
D: Stand configuration,for normal testing
DC: Test hole or hollow cylindrical
DL: Test slender narrow groove or hole
D+I5: Test groove or concave surface
G: Test large, thick, heavy and rough surface steel
C: Test small, light, thin parts and surface of hardened layer

Configuration

Our company was founded in 1988, which is one of the well known companies specialized in Non-dectructive testing (NDT) equipments. After 20 years' development, we have accumulated abundant technical force and established a wealth of design and practical experience. We are a manufacturer and trading company. Our main products are industrial X-ray machines. We have portable X-ray machines and stationary X-ray machines.
Our portable X-ray machines have the specifications from 100kV, 120kV, 160kV, 200kV, 220kV, 250kV, 300kV, 320kV to 350kV. Our portable machines have smaller size and lighter weight, and are more convenient for users to operate.
Our stationary X-ray machines have the specifications from 100kV, 160kV, 225kV, 300kV, 320kV, 350kV, 400kV, 420kV to 450kV. Our stationary machines have stronger penetrating power and also are more suitable for the online non-destructive testing.  Our products are finely developed and manufactured by adopting high technologies of many countries and manufacturers. They can be widely used in many fields such as mechanism, electron, petroleum, chemical industry, electric power, bridges, boats and ships, vehicles. aviation, heating power, boilers, pressure vessels and war industries.  Our sales network covers the whole world and we maintain good business relationship with more than 200 customers.  We will serve the first-class technology, first-class products and first-class service for you.

Certificate

1. The warranty period?
12 months.
2. If you could repair by yourself?
We could provide the free spare parts and guide for you.
4. The delivery term?
Express
5. The delivery time?
After payment, the testing needs 2 days. After deliverying, you will get it within 6 days.

The contact person: Mr. Frank Chen
Tel: +86-415-2883568
Fax: +86-415-2824917
Mobile: +86 15842587084
Skype: fchen011
Wechat: ct112611
Email: frank (at) ddgtndt.com ; frank.chen01 (at) hotmail.com
Website: //ddgt.en.alibaba.com