# Dongguan Quality Control Technology Co., Ltd. | iqualitrol Automatic Grinding and Polishing Machine,CE Automatic Grinding and Polishing Machine, temperature controlled chamber,temperature cycle chamber, Microhardness Vickers Tester,Microhardness Testing Machine, 

## summary
> Manufacturer, Distributor/Wholesaler, Brands: iqualitrol, Established in 2010, Employees: 10~30, Annual sales: 1000000-1500000, Export ratio: 90% - 100%, Primary markets: Worldwide.

## Company Information

 *  [Company Profile](https://www.iqualitrol.com/aboutus.html): Overview, history, teams and core capabilities.
 *  [Factory & Manufacturing](https://www.iqualitrol.com/factory.html): Production capacity, OEM/ODM capabilities, and R&D strength.
 *  [Quality Control](https://www.iqualitrol.com/quality.html): ISO certifications, quality standards, and compliance.
 *  [Contact Us](https://www.iqualitrol.com/contactus.html): Global offices, inquiries, and support channels.

## Product Category

* [Micro Vickers Hardness Tester](https://www.iqualitrol.com/supplier-180610-micro-vickers-hardness-tester): Keywords: Digital Microhardness Tester,Micro Hardness Testing Machine,Automatic Microhardness Tester.
* [Vickers Hardness Testing Machine](https://www.iqualitrol.com/supplier-180609-vickers-hardness-testing-machine): Keywords: Automatic Vickers Hardness Tester,Vicker Hardness Test Unit,Digital Hardness Tester.
* [Rockwell Hardness Test Machine](https://www.iqualitrol.com/supplier-180608-rockwell-hardness-test-machine): Keywords: Digital Rockwell Hardness Tester,Automatic Rockwell Hardness Tester,Rockwell Hardness Tester Machine.
* [Brinell Hardness Testing Machine](https://www.iqualitrol.com/supplier-180607-brinell-hardness-testing-machine): Keywords: Digital Brinell Hardness Tester,Brinell Hardness Test Equipment,Brinell Hardness Apparatus.
* [Metallographic Cutting Machine](https://www.iqualitrol.com/supplier-180612-metallographic-cutting-machine): Keywords: Metallographic Sample Cutting Machine,Metallographic Abrasive Cutting Machine,Metallurgical Sample Cutting Machine.
* [Metallographic Polishing Machine](https://www.iqualitrol.com/supplier-180613-metallographic-polishing-machine): Keywords: Automatic Grinding and Polishing Machine,Metallographic Grinder Polisher,Metallographic Grinding Polishing Machine.
* [Metallographic Mounting Press](https://www.iqualitrol.com/supplier-180614-metallographic-mounting-press): Keywords: Specimen Mounting Press Machine,Hot Mounting Press Machine,Metallographic Specimen Mounting Press.
* [Lab Centrifuge Machine](https://www.iqualitrol.com/supplier-4402312-lab-centrifuge-machine): Keywords: Refrigerated Centrifuge With Imbalance Sensor,Fluorine Free Compressor Micro Refrigerated Centrifuge,Dengue Fever Hematocrit Centrifuge.
* [Vision Measuring Machine](https://www.iqualitrol.com/supplier-180617-vision-measuring-machine): Keywords: Vision Measurement Machine,CNC Vision Measuring System,Quick Vision Measuring Machine.
* [Temperature Test Chamber](https://www.iqualitrol.com/supplier-180605-temperature-test-chamber): Keywords: Temperature Humidity Test Chamber,Constant Temperature Humidity Chamber,Environmental Temperature Test Chamber.
* [Salt Spray Test Chamber](https://www.iqualitrol.com/supplier-180606-salt-spray-test-chamber): Keywords: Salt Spray Corrosion Test Chamber,Salt Fog Chamber,Salt Spray Test Machine.
* [Stereo Zoom Microscope](https://www.iqualitrol.com/supplier-180616-stereo-zoom-microscope): Keywords: Digital Stereo Zoom Microscope,Digital Stereo Microscope,Optical Stereo Microscope.
* [Portable Hardness Tester](https://www.iqualitrol.com/supplier-180611-portable-hardness-tester): Keywords: Leeb Hardness Tester,Barcol Hardness Tester,Digital Portable Hardness Tester.
* [Digital Metallurgical Microscope](https://www.iqualitrol.com/supplier-180615-digital-metallurgical-microscope): Keywords: Inverted Metallurgical Microscope,Trinocular Metallurgical Microscope,Upright Metallurgical Microscope.
* [Universal Material Testing Machine](https://www.iqualitrol.com/supplier-254273-universal-material-testing-machine): Keywords: Electronic Universal Material Testing Machine,Universal Material Tester,Tensile Compression Testing Machine.
* [Non Destructive Testing Equipment](https://www.iqualitrol.com/supplier-238157-non-destructive-testing-equipment): Keywords: Digital Force Gauge Meter,Portable Surface Roughness Tester,Ultrasonic Flaw Detector Machine.
* [Industrial Video Borescope](https://www.iqualitrol.com/supplier-347957-industrial-video-borescope): Keywords: Flexible Video Endoscope,Video Inspection Borescope,Digital Inspection Endoscope.

## Featured Products

* [Built-in Printer High Precision Brinell Hardness Testing Machine 0.125um With 10X Eyepiece](https://www.iqualitrol.com/sale-11398908-built-in-printer-high-precision-brinell-hardness-testing-machine-0-125um-with-10x-eyepiece.html): Keywords: High Precision Brinell Hardness Testing Machine,Brinell Hardness Testing Machine 0.125um,CE Brinell Hardness Test Machine.
* [Double Disc 250mm Stepless Speed Automatic Grinding Polishing Machine Touch Controller](https://www.iqualitrol.com/sale-13089688-double-disc-250mm-stepless-speed-automatic-grinding-polishing-machine-touch-controller.html): Keywords: iqualitrol Automatic Grinding and Polishing Machine,CE Automatic Grinding and Polishing Machine.
* [Three Lens Turret Digital Measuring Vertical Profile Projector JT14 With 12" Screen](https://www.iqualitrol.com/sale-42475923-three-lens-turret-digital-measuring-vertical-profile-projector-jt14-with-12-screen.html): Keywords: Digital Measuring Vertical Profile Projector,Turret Three Lens Vertical Profile Projector.
* [Vertical Space 100mm Touch Screen Microhardness Vickers Tester Machine Auto Turret](https://www.iqualitrol.com/sale-9203745-vertical-space-100mm-touch-screen-microhardness-vickers-tester-machine-auto-turret.html): Keywords: Microhardness Vickers Tester,Microhardness Testing Machine.
* [Two-axis linkage Structure Digital Rockwell Hardness Testing Machine for larger workpieces](https://www.iqualitrol.com/sale-36700220-two-axis-linkage-structure-digital-rockwell-hardness-testing-machine-for-larger-workpieces.html): Keywords: Rockwell Hardness Testing Machine 50Hz,Rockwell Hardness Testing Machine AC220V,Rockwell Metal Hardness Tester.
* [Automatic Metallographic Sample Mounting Press ZXQ-1S with Effective Height 115mm](https://www.iqualitrol.com/sale-41518830-automatic-metallographic-sample-mounting-press-zxq-1s-with-effective-height-115mm.html): Keywords: Automatic Metallographic Sample Mounting Press,115mm Height Metallographic Sample Mounting Press.
* [High Precision Efficient Instant Vision Measuring Machine FOV 95x80mm KS-YJ80A](https://www.iqualitrol.com/sale-37618972-high-precision-efficient-instant-vision-measuring-machine-fov-95x80mm-ks-yj80a.html): Keywords: Telecentric Vision Measuring Machine,95x80mm Vision Measuring Machine,5MP CCD Vision Measuring System.
* [Automatic Heavy Duty Brinell Hardness Tester HBS-3000DZ with One Key Operation](https://www.iqualitrol.com/sale-46723501-automatic-heavy-duty-brinell-hardness-tester-hbs-3000dz-with-one-key-operation.html)
* [Built-in Printer Leeb Portable Hardness Testing Equipment With RS232 Large Memory](https://www.iqualitrol.com/sale-9247533-built-in-printer-leeb-portable-hardness-testing-equipment-with-rs232-large-memory.html): Keywords: portable metal hardness tester,portable hardness testing machine.
* [Cold Balanced Control Programmable Temperature and Humidity Environmental Test Chamber](https://www.iqualitrol.com/sale-11442408-cold-balanced-control-programmable-temperature-and-humidity-environmental-test-chamber.html): Keywords: temperature controlled chamber,temperature cycle chamber.



## FAQ

Q: Analysis and Solution of Water Failure in Polishing Machine
A:   
Analysis and Solution of Water Failure in Polishing Machine 
  
1. Problem description 
The polishing machine is a common mechanical equipment used to polish and grind the surfaces of various materials. In the process of using the polishing machine, sometimes there will be water failure, which will affect the polishing effect and may even cause equipment damage. So, what is the reason for the water failure of the polishing machine and how to solve it? Below, please follow this article to learn about it. 
  
2. Cause analysis 
2.1. Insufficient water pressure 
The polishing machine requires a certain water pressure to ensure smooth water flow. If the water pressure is insufficient, the water will not flow normally, which will affect the polishing effect. At this time, it is necessary to check whether the water pressure is normal. If it is insufficient, the water pressure should be adjusted in time. 
  
2.2. Waterway blockage 
Waterway blockage is one of the common reasons for the water failure of the polishing machine. In the process of using the polishing machine, impurities or sediments will be mixed in the water, and these impurities will gradually accumulate in the waterway, causing the waterway to be blocked. At this time, the waterway needs to be cleaned to remove the impurities. 
  
2.3. Water pipe rupture 
The gears and drive chains of the polishing machine will vibrate, and this vibration will cause friction on the water pipe, which will cause the water pipe to rupture. At this time, the damaged water pipe needs to be replaced. 
  
3. Solution 
3.1. Check the water pressure 
If the water pressure is insufficient, you can adjust the water pressure. If you are not sure how to adjust it, you can check the instruction manual of the polisher. 
  
3.2. Clean the water circuit 
To clean the water circuit, you need to turn on the water circuit switch and drain valve, flush the water circuit with clean water, and clean the impurities in the water circuit. 
  
3.3. Replace the water pipe 
If the water pipe is broken, you need to replace the water pipe in time. To replace the water pipe, you need to turn off the water circuit switch first, remove the damaged water pipe, and replace the previous damaged water pipe with a new one. 
 

## Search

Search endpoint:

https://www.iqualitrol.com/buy-{keyword}.html

Rules:

- Convert keywords to lowercase
- Replace spaces with "-"
- Remove special characters

Users can combine keywords for more precise searches.

## News & Blog

* [Attention to Cutting of Metallographical Specimen](https://www.iqualitrol.com/news/attention-to-cutting-of-metallographical-specimen-23082.html)
* [What is Cryptocrystalline Martensite?](https://www.iqualitrol.com/news/what-is-cryptocrystalline-martensite-369850.html)
* [What is Eddy Current Technique?](https://www.iqualitrol.com/news/what-is-eddy-current-technique-179989.html)
* [Differential Interference Contrast (DIC)](https://www.iqualitrol.com/news/differential-interference-contrast-dic-23061.html)
* [The Difference Between Brightfield and Barkfield](https://www.iqualitrol.com/news/the-difference-between-brightfield-and-barkfield-23060.html)