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4-1/2″ Flap Disc

Luckut Flap Discs are designed for aggressive stock removal, blending, deburring, and surface finishing in one step. Available in multiple grain types such as Zirconia Alumina(ZA), Ceramic Alumina (CA), and Calcined Aluminum Oxide (AO) to suit various metal grinding applications, including stainless steel, mild steel, and non-ferrous materials.

Dimensions

|

115 mm x 22.23 mm

Flap Dimension

|

25*17*72/80

Operation Method

|

15°–30° Grinding

Grit Size

|

40-120#

Attachment System

|

Bore + Flange

Max Speed

|

80m/s

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Product Type

T27

T29

Application Method

Portable Hand Engine

Product Forms

Stainless Steel

Metal Sheet

Flat bar

Steel

Wood

Product Overview

Product Advantages

High-grade raw materials

The bond is perfectly matched to the grit type used and guarantees a greater level of aggressiveness as well as a longer service life.

Enhanced performance

The synthetically produced grit ensures the consistently high performance of our Kronenflex® products. Available in three different quality classes, they are exceptionally well suited for all types of applications.

Proven safety

Our cutting-off wheels have been tested according to the guidelines of the oSa directives and are guaranteed to comply with European safety standard EN 12413.

Product Parameters

Size Parameters	Cutting Disc Thickness	Flap Disc Thickness	Sharpness	Durability
(3″)75	1.2/1.6	6	★★★★★	★★★★
(4.5″)115*22	1.0/1.2/1.6	6	★★★★★	★★★★★
(5″)125*22	1.0/1.2/1.6/2.3	6	★★★★★	★★★★★
(6″)150*22	1.2/1.6/2.3	6	★★★★★	★★★★★
(7″)180*22	1.6/2.3	6	★★★★	★★★★★
(9″)230*22	2.5/3	6	★★★★	★★★★★
(14″)355*25.4	2.5/3	6	★★★★★	★★★★★
(16″)405*32	3/3.5/4	6	★★★★	★★★★★

Product Application

Ferrous Metals

Box Profiles

Rebar

Ferrous Metals

Welded

Low Alloy Steels

Weld Seam Splitting

Steel Construction

Product Application

Railway Engineering

We provide precise, cost-effective grinding solutions for railway projects, ensuring sharp, safe, and stable performance.

Energy & Pipelines

We provide precise, cost-effective grinding solutions for railway projects, ensuring sharp, safe, and stable performance.

Casting

We provide precise, cost-effective grinding solutions for railway projects, ensuring sharp, safe, and stable performance.

Shipbuilding Engineering

We provide precise, cost-effective grinding solutions for railway projects, ensuring sharp, safe, and stable performance.

FAQ

What’s the difference between T27 and T29 flap discs?

T27 is flat and best for surface grinding; T29 is angled for edges and contours

Which grain should I choose?

Zirconia: For stainless/carbon steel and aggressive grinding
Ceramic: For hard alloys and extended durability
Calcined AO: For general-purpose grinding and value markets

What safety gear is required when using cut-off wheels?

Always wear safety goggles, gloves, ear protection, and ensure proper mounting before use.

GET IN TOUCH WITH US

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CONTACT US

Thank you for your interest in pm-papertech! Please fill out the form below and provide as much detail as possible, so we can better assist you.

No. 12, Diamond 5th Road, New Material Industrial Park, Zhengzhou City, Henan Province.

8618239982393

[email protected]

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RELATED APPLICATION

Here are our best-selling products. If you want to learn more, you can contact us

Railway Engineering

In railway construction, maintenance and repair projects, we offer high-performance and cost-effective cutting and grinding solutions. We provide high-precision, perpendicular, sharp, safe and stable grinding wheel products that are compatible with the power, rotation speed of chain saws and electric saws, as well as the operating scenarios.

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Casting

Only when the perfect balance is struck among the grinding wheel, the material, size, structure, strength of the casting, and the cutting machine can the ultimate performance be achieved. Due to our focus in this field, we also consider ourselves experts in cutting and grinding for the heavy industry and casting industry.

Learn More

Energy & Pipelines

Our products are specifically designed for applications such as grinding, polishing, cutting and beveling of stainless steel and alloy steel pipes and plates used in petrochemical, nuclear power and municipal engineering projects. They are sharp, stable, easy to use and safe.

Learn More

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