• Auto Grinding Machine for polishing and refurbishing second hand phone screens and back glass.
  • Auto Grinding Machine
  • Auto Grinding Machine
  • Auto Grinding Machine
  • Auto Grinding Machine
  • Auto Grinding Machine
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JiuTu Machine

Auto Grinding Machine for second hand phone

Auto Grinding Machine for second hand phone

$1,558.80 USD
$1,558.80 USD $1,558.80 USD
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Auto Grinding Machine for Second Hand Phone

Jiutu Auto Grinding Machine is specifically designed for second-hand phone refurbishment. Removes scratches from phone screens and back glass in 3–6 minutes (minor) or 8–12 minutes (deep). Supports straight and curved screens. CE certified, 110V/220V available.

Key Features:

● Two models: black (requires external air compressor) or white (built-in compressor)

● Both 110V and 220V available

● Suitable for iPhone, Apple Watch, Samsung, Huawei, and more

● Polishes all phone screens and back covers including curved screens

● CE certified — environmentally friendly materials

● High cost performance — significantly saves labor and time vs. traditional replacement

Product Parameters:

Speed Infinite speed
Polishing Depth Recommended <0.2mm
Applicable Models Straight screen, curved screen
Polishing Time 6–12 minutes
Voltage 220V (optional 110V)
Machine Size 500×500×750 mm
Package Size 650×650×930 mm

Frequently Asked Questions

Q1: Is the Auto Grinding Machine suitable for refurbishing second-hand phones at scale?

A: Yes. The Jiutu Auto Grinding Machine is specifically designed for second-hand phone refurbishment factories and recycling companies. It can process both straight and curved screens, supports infinite speed adjustment, and completes minor scratch removal in 3–6 minutes per phone. This makes it highly efficient for high-volume refurbishment operations compared to traditional manual methods.

Q2: What is the recommended polishing depth, and will it make the glass too thin?

A: The recommended polishing depth is less than 0.2mm per session. Only a very thin layer of glass is removed, which does not affect the structural integrity or daily use of the phone. After polishing, an oleophobic coating should be applied to restore the hydrophobic effect on the screen surface.

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Frequently Asked Questions

What are the main differences between the black and white models of the Auto Grinding Machine?
The black model requires an external air compressor, while the white model features a built-in compressor, making it more convenient and easier to set up.
Is the Auto Grinding Machine compatible with all types of smartphones and watches?
Yes, the Auto Grinding Machine is suitable for refurbishing a wide range of devices including iPhone, Apple Watch, Samsung, Huawei, and other similar models.
How long does it typically take to refurbish a phone screen or back cover using this machine?
Refurbishment usually takes between 3 to 6 minutes for minor scratches and 8 to 12 minutes for larger scratches, significantly improving efficiency compared to traditional methods.
What are the safety and environmental features of the Auto Grinding Machine?
The machine is CE marked, uses environmentally friendly materials, and is designed to operate pollution-free, ensuring environmental safety during refurbishment processes.
Can the Auto Grinding Machine polish curved screens and back covers?
Yes, the Auto Grinding Machine is highly versatile and capable of polishing all mobile phone screens, including curved screens, as well as back covers effectively.