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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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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

Product ID: 660023865

Details

Brand
SI FANG
Colour
Blue
Material
Plastic Metal
Power Source
Air Powered
Style
Pencil

💨90 PSI air pressure operation

🔇Low vibration & noise

⚙️30,000 RPM max speed

Description

⚡ Elevate your craft with ultrasonic precision — grind smarter, not harder!

COMPACT COMFORTABLE DESIGN - Small volume, low vibration, and minimal noise for fatigue-free, professional use all day long.
PRECISION ULTRASONIC GRINDING - Achieve ultra-fine metal shaping with 0.0001” increments for flawless mold and jewelry finishing.
COST EFFECTIVE INDUSTRIAL GRADE - Delivers high-end ultrasonic grinding precision at a fraction of the price—upgrade your toolkit without breaking the bank.
EFFORTLESS AIR POWERED PERFORMANCE - Powered by 90 PSI air pressure with no need for lubricating oil, ensuring smooth, maintenance-light operation.
VERSATILE MULTI TOOL COMPATIBILITY - Includes adapters for round and flat-file heads, perfect for grinding, polishing, buffing, and sanding diverse metals.

The SI FANG Turbine Reciprocating Pneumatic Ultrasound Grinder is a compact, air-powered precision tool operating at 30,000 RPM and 90 PSI. Designed for industrial polishing, grinding, and surface treatment of molds and metals, it features low vibration and noise for comfortable use. Compatible with various grinding heads, it requires no lubricating oil and offers professional-grade ultrasonic grinding performance at an affordable price.

Specifications

ASIN	B07SJZKVX2
Best Sellers Rank	#68,099 in Home Improvement ( See Top 100 in Home Improvement ) #22 in Polishers
Brand Name	SI FANG
Colour	Blue
Customer Reviews	4.1 4.1 out of 5 stars (62)
Item Weight	0.59 Kilograms
Manufacturer	SHUQIU
Material Type	Plastic Metal
Maximum Rotational Speed	28000 RPM
Model Number	0c87c32d-ba14-47a3-bb38-e35c90594921
Number of Items	1
Power Source	Air Powered
Style Name	Pencil
Unit Count	1.0 Count

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