Your pictures shows a plastic connector between the motor and collet, how well do you think it handle the reciprocal motion?

It seems to be functioning quite well and I have put several hours on mine

What is the stroke length? How many strokes per minute minimum and maximum?

This is ultrasonic and not profiler

Is there any warranty?

I'm not sure if there is a warranty but considering the price is not even one quarter of the price on most ultrasonics l considerate a good investment are you smiling regularly with no issues

What kind of air coupler is used in this item?

That is an excellent question. The air coupler is not recognizable to me and doesn't fit any connections that I know of (industrial, automotive or ARO), and there is no way to switch it out, so probably going to have to return the item.

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SI FANG Turbine Reciprocating Pneumatic Pencil Grinder Air File Micro | for Mould Metal Lapping Filing Grinding Buffing Polishing Sanding Tools Ultrasound Die Grinder Kit

Product ID: 141362816

Details

Brand
SI FANG
Color
Blue
Material
Metal
Power Source
Air Powered
Style
Portable

💨90 PSI air pressure

🔇Low noise & vibration

⚙️28,000 RPM max speed

€ 140.69

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Elevate your craft with precision power and silent finesse!

COMPACT PORTABLE - Lightweight 0.59 kg design fits perfectly in your toolkit for on-the-go mastery
OIL FREE CONVENIENCE - No lubricating oil needed—clean, hassle-free performance every time
PRECISION POWERHOUSE - Turbocharged 28,000 RPM for flawless mold and metal finishing
EFFORTLESS EFFICIENCY - Achieve mirror-polished surfaces with half the effort—FOMO for every craftsman
WHISPER QUIET OPERATION - Low noise and vibration keep your workspace professional and focused

The SI FANG Turbine Reciprocating Pneumatic Ultrasound Grinder is a high-speed, air-powered die grinder designed for precision polishing, grinding, and surface treatment of molds and metals. Operating at up to 28,000 RPM with 90 PSI air pressure, it delivers efficient, low-vibration, and low-noise performance without the need for lubricating oil. Compact and portable, it’s ideal for professional mold repair, jewelry finishing, and detailed metalwork.

Specifications

ASIN	B07SJZKVX2
Best Sellers Rank	#281,893 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #89 in Power Die Grinders
Brand	SI FANG
Brand Name	SI FANG
Color	Blue
Customer Reviews	4.2 out of 5 stars 59 Reviews
Item Weight	0.59 Kilograms
Manufacturer	SHUQIU
Material	Metal
Material Type	Metal
Maximum Rotational Speed	28000 RPM
Model Number	0c87c32d-ba14-47a3-bb38-e35c90594921
Power Source	Air Powered
Style	Portable
Style Name	Portable
Unit Count	1.0 Count

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TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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2 weeks ago

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