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Shandong China Coal Mining & Industrial Group Co., Ltd.

China Manufacturer with main products: Mining Equipment, Rock Drilling Machine, Mining & Construction Lifting Equipment, Transportation Equipment, Mining Supporting Equipment,...

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factory selling flat surface roughness gauge

FOB Price: 1.00 - 1,000.00 USD/Set
Supply Ability: 1,000 Set/Sets per Month
Shipping: 5-10 days after your payment
Payment Terms: L/C, T/T, Western Union, Other, PayPal
In Stock

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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Shandong in China
Packaging Details: carton box, plastic bags, wooden cases or as your requirement

Quick Details

  • Model Number: ZM
  • Brand Name: China Coal
  • Product name: factory selling flat surface roughness gauge



factory selling flat surface roughness gauge

The performance advantage

1. The roughness of metal and non-metallic surface

2. Pocket-size & economically price

3. Large measuring range suitable for most materials

4. Features external calibration at keyboard

5.Optimized electric circuit design with transducer structure-design,high integrate power, driver and display. 

6. Select freely with Ra,Rz, Rq, Rt parameters.

7.It could test ex-circle, flat surface, conical surface and also test groove with length and width larger than 80*30mm.

Main Function:

1. Shape used to pull aluminum mold design, durable, anti-electromagnetic interference ability significantly, in line with the design of the new trend.

2. Using high-speed DSP processor for data processing and calculation, measurement and computation speed is greatly improved.

3. Liquid crystal display wide temperature using OLED color display, popular high brightness, no visual angle,, is suitable for various occasions.

4. The lithium ion rechargeable battery, can work for a long time, no memory effect, can while charging, charging time is short, long battery life.

5.Charging and communication using the common USB interface. Using a dedicated charger or computer USB port for charging, convenient and quick.

6. Dot matrix liquid crystal display, interface prompt information rich.

7. Real-time monitoring of lithium battery power and display, and to remind users to charge with charging progress indication.

8. Automatic shutdown function and low power design of software and hardware of the instrument with long working hours, suitable for field use.


Testing parameters(μm )

Ra, Rz

Stroke length(mm)


Sample length(mm)

0.25 , 0.80 , 2.50

Evaluation length(mm)

1.25 , 4.0 , 5.0

Measuring range(μm )

Ra:   0.05 ~ 10.0  Rz:   0.1 ~ 50





Contacting pin round diameter

10 μm±1 μm


3.7V Li


106 mm×70 mm×24 mm



Stylus static force

≤ 0.016N

Force measuring rate of change

≤ 800N/m



Relative humidity

<  90%

Service Process

Service Guarantee

  • Free Service Charge

    ECVV doesn't charge any service fee to Buyers for buying this product.

  • ECVV Supply

    ECVV is responsible for supply, and provides product quality inspection, fund supervision and supply chain services.

  • Product Quality Commitment

    ECVV China Sourcing Agent will assess the reputation and supply ability of the factory and conduct field trips to select the high-quality Chinese factories for buyers.

  • Deposit Service Commitments

    In order to improve the quality of service, ECVV will charge for a 100CNY deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.

    After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.

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